Four double-A batteries

In science and technology, a battery is a device that stores Energy is a fundamental quantity that every physical system possesses; it allows us to predict how much work the system could be made to do, or how much heat it can exchange. In the past, energy was discussed in terms of easily observable effects it has on the properties of... energy and makes it available in an electrical form. Although such storage in an Electrostatics is the branch of physics that deals with the force exerted by a static (i.e. unchanging) electric field upon a charged object. Characteristics As with hydrostatics and the Statics portion of classical mechanics, the actual situation need not be static and unchanging. Instead static implies that the dynamic... electrostatic form is practical in some specialized uses, batteries usually consist of Electrochemistry is the study of the electronic and electrical aspects of chemical reactions. The elements involved in an electrochemical reaction are characterized by the number of electrons each has. The oxidation state of an ion is the number of electrons it has accepted or donated compared to its neutral state... electrochemical devices such as one or more The Galvanic cell, named after Luigi Galvani, consists of two metals connected by an electrolyte which forms a salt bridge between the metals. In 1780, Luigi Galvani discovered that when two different metals (copper and zinc for example) were connected together and then both touched to different parts of a... galvanic cells or more recently A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i.e. it produces electricity from an external fuel supply as opposed to the limited internal energy storage capacity of a battery... fuel cells, and may in the future use other technologies. Businesswise, the battery industry is worth 2.8 billion dollars annually.

In a technical sense, the distinction may be made between

• an electrical battery, a device for creating or storing electrical energy composed of several similar (usually identical) cells that are connected together, versus
• an electrical cell, a single such unit, possibly one cell in a (strict-terminology) battery of multiple cells or possibly the entire device.

That distinction, however, is considered pedantic in most contexts (other than the expression A dry cell is a compact primary electrochemical cell that supplies electrical energy at small currents. Like all electrochemical cells, it gets its electrical energy from an internal chemical reaction. The cell is wrapped in a sheet of zinc, inside which is a carbon rod. The space between the zinc... dry cell), and in current English usage it is more common to call a single cell used on its own a battery than a cell.

An example is a double A (AA) battery. Even though most people call it a battery, in reality it is a cell. A car battery is a true "battery" because it uses multiple cells inside of it that are connected together, thus forming a battery.

History

There is some evidence—in the form of the The Baghdad Battery is the common name for a number of artifacts apparently discovered in the village of Khuyut Rabboua (near Baghdad, Iraq) in 1936. These artifacts came to wider attention in 1938, when Wilhelm K nig, the German director of the National Museum of Iraq, found the objects... Baghdad Batteries from sometime between Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 300s BC 290s BC 280s BC 270s BC 260s BC - 250s BC - 240s BC 230s BC 220s BC 210s BC 200s BC Years: 255 BC 254 BC 253 BC 252 BC 251 BC - 250 BC - 249 BC 248 BC... 250 BC and Events May 28 - Severinus becomes pope, but dies the same year. December 24 - Severinus is succeeded by John IV. Muslims capture Alexandria. Tulga succeeds his father Suinthila as king of the Visigoths. Births Aldhelm, Bible translator Musa bin Nusair, Umayyad general and governor Deaths 2 August - Pope Severinus 12 September... 640 AD—of The Galvanic cell, named after Luigi Galvani, consists of two metals connected by an electrolyte which forms a salt bridge between the metals. In 1780, Luigi Galvani discovered that when two different metals (copper and zinc for example) were connected together and then both touched to different parts of a... galvanic cells having been used in ancient times to Electroplating is the the coating of an electrically conductive item with a layer of metal using electrical current. Process The process used in electroplating is called electrodeposition. The item to be coated is placed into a container containing a solution of one or more metal salts. The item is connected... electroplate base metal objects with a precious metal. Such ancient knowledge in the history of electricity bears no known continuous relationship to the development of modern batteries. The conjecture that these devices had an electrical function, while plausible, remains unproven.

In Events April 24 - A congress assembles at Aix-la-Chapelle with the intent to conclude the struggle known as the War of Austrian Succession - at October 18 - The Treaty of Aix-la-Chapelle is signed to end the war Adam Smith begins to deliver public lectures in Edinburgh Building of... 1748, Franklin, an engraving from a painting by Duplessis Dr. Benjamin Franklin ( January 17, 1706 – April 17, 1790) was an American printer, journalist, publisher, author, philanthropist, abolitionist, public servant, scientist, librarian, diplomat, and inventor. One of the leaders of the American Revolution, he was well known also for his many... Benjamin Franklin coined the term battery to describe the simple Various types of capacitors A capacitor is a device that stores energy in the electric field created between a pair of conductors on which equal but opposite electric charges have been placed. Intentional capacitors have thin metal plates stacked or rolled to form a compact device, but every multi-conductor... capacitor he experimented with, which was an array of charged glass plates. He adapted the word from its earlier sense meaning a beating, which is what an electric shock from the apparatus felt like. In those days, the entertaining effect of an The article on electrical energy is located elsewhere. Electricity is a property of certain subatomic particles (e.g. electrons / protons) which couples to electromagnetic fields and causes attractive and repulsive forces between them. Electricity gives rise to one of the four fundamental forces of nature, and is a conserved property... electric This article is about medicine. See also electric shock. For the concept of shock in physics and mechanics, see Shock (mechanics). For the 1946 film noir starring Vincent Price, see Shock (movie) In medicine, shock is a life-threatening medical emergency characterized by inability of the body to supply enough... shock was one of the few uses of the technology. Other experimenters made batteries from a number of Original capacitor The Leyden jar was the original capacitor. Description The device was a glass jar coated inside and out with metal. The inner coating was connected to a rod that passed through the lid and ended in a metal ball. Typical designs consist of an electrode and a plate... Leyden jars connected in Left: Series  / Right: Parallel Arrows indicate direction of current flow. The red bars represent the voltage as it becomes dropped in the series circuit. The red bars in the parallel circuit dont lower because voltage is the same throughout a parallel circuit. In electrical circuits series and... parallel. The definition was later widened to include an In computer programming, an array, also known as a vector or list, is one of the simplest data structures. Arrays hold equally-sized data elements, generally of the same data type. Individual elements are accessed by index using a consecutive range of integers, as opposed to an associative array. Some... array of An electrochemical cell is a setup used for creating an electromotive force in a conductor separating two reactions. The current is caused by the reactions releasing and accepting electrons in to the different ends of the conductor. The most common example of an electrochemical cell is a standard 1.5... electrochemical cells or Various types of capacitors A capacitor is a device that stores energy in the electric field created between a pair of conductors on which equal but opposite electric charges have been placed. Intentional capacitors have thin metal plates stacked or rolled to form a compact device, but every multi-conductor... capacitors. The The Voltaic Pile was invented by Alessandro Volta in 1800. Volta demonstrated that when metals and chemicals come into contact with each other they can produce an electrical current. In his research, Volta placed together several pairs of alternating copper (or silver) and zinc discs separated by cloth and soaked... Voltaic pile was a chemical battery developed by Alessandro Giuseppe Antonio Anastasio Volta Alessandro Giuseppe Antonio Anastasio Volta (February 18, 1745 - March 5, Italian physicist known especially for the development of the electric battery. Late in life, he received the title of Count. Biography Volta was born and educated in Como Italy, where he became professor of physics... Alessandro Volta in 1800 was a common year starting on Wednesday (see link for calendar). Events March 14 - Cardinal Barnaba Chiaramonti is elected pope Pius VII. March 21 - Pius VII becomes Pope April 24 - US Library of Congress founded. May 5 - Great Britain passes the Act of Union to join Great Britain and... 1800. Volta researched the effects which different metals produced when exposed to salt water. In Events January 1 - Legislative union of Ireland completed under the Act of Union 1800, bringing about the United Kingdom of Great Britain and Ireland. January 1 - Giuseppe Piazzi discovers the first (and largest) asteroid Ceres. January 20 - John Marshall is appointed Chief Justice of the United States. February 3 - William... 1801, Volta demonstrated the Voltaic cell to Bonaparte as general Napoleon Bonaparte ( 15 August 1769 – 5 May 1821) was a general of the French Revolution and was the ruler of France as First Consul (Premier Consul) of the French Republic from November 11, 1799 to May 18, 1804, then as Emperor of the French (Empereur des... Napoleon Bonaparte (who later ennobled him for his discoveries). Luigi Galvani Luigi Galvani (September 9, 1737–December 4, 1798) was an Italian physician and physicist who lived and died in Bologna. Dissecting a frog at a table where he had been conducting experiments with static electricity, Galvani touched an exposed sciatic nerve of the frog with his metal... Luigi Galvani researched the same effect with two pieces of the same metal exposed to salt water.

The scientific community at this time called these batteries piles. The battery was called an accumulator, because it held charge, or an artificial electrical organ. Some early researchers over batteries called the device a gravity cell because gravity kept the two Sulfate is the IUPAC name for the SO42- ion, consisting of a central sulfur atom single bonded to four tetrahedrally oriented oxygen atoms. This anion has a net negative two electric charge. Almost all ionic compounds with sulfate anions are soluble in water at standard temperature and pressure (the exceptions... sulfates separated. The name crowfoot cell was also commonly used because of the shape of the zinc electrode used in the batteries.

In 1800 was a common year starting on Wednesday (see link for calendar). Events March 14 - Cardinal Barnaba Chiaramonti is elected pope Pius VII. March 21 - Pius VII becomes Pope April 24 - US Library of Congress founded. May 5 - Great Britain passes the Act of Union to join Great Britain and... 1800, There have been several well-known people named William Nicholson, including: William Nicholson (artist) William Nicholson (chemist) William Nicholson (dramatist) William Nicholson (Mayor of Melbourne) Sir William Nicholson (soldier), British General, and Chief of the Imperial General Staff William Nicholson (naval officer) served in the United States Navy. This is... William Nicholson and Anthony Carlisle used a battery to decompose water into hydrogen and oxygen. Sir Humphry Davy Sir Humphry Davy (December 17, 1778 - May 29, 1829), often incorrectly spelled Humphrey, was an Cornish chemist. He was born in Penzance, Cornwall, United Kingdom. Davy became well known owing to his experiences with the physiological action of some gases, including laughing gas (nitrous oxide). In 1801 he... Humphry Davy researched this chemical effect at the same time. Davy researched the decomposition of substances (called This article is about the chemical process. Electrolysis is also a method of epilation. In chemistry and manufacturing, electrolysis is a method of separating bonded elements and compounds by passing an electric current through them. Overview The source material is dissolved in an appropriate solvent, or melted, so that constituent... electrolysis). In 1813 is a common year starting on Friday (link will take you to calendar). Events March 17 - Through a newspaper, the Prussian king Frederick William III of Prussia calls for resistance against the Napoleonic occupation April 27 - War of 1812: Battle of York - United States troops raid, destroy, but do... 1813, he constructed a 2,000-plate paired battery in the basement of Britain's The Royal Society of London is claimed to be the oldest learned society still in existence and was founded in 1660. The Royal Irish Academy, founded in 1782, is also closely affiliated with it. The Royal Society of Edinburgh (founded 1783) is a separate Scottish body. The premises of the... Royal Society, covering 889 ft&sup2 (83 m&sup2). Through this experiment, Davy deduced that electrolysis was the action in the voltaic pile that produced electricity. In 1820 was a leap year starting on Saturday (see link for calendar). Events January 1 - Constitutionalist military insurrection at Cádiz leads to summoning of Spanish parliament ( March 7) and restoration of 1812 Constitution ( March 8) by king Ferdinand VII. January 28 - Russian expedition lead by Fabian Gottlieb von... 1820, the The United Kingdom of Great Britain and Northern Ireland is a country in western Europe, and a member of the British Commonwealth and European Union. Usually known simply as the United Kingdom, UK or, inaccurately, as Great Britain or Britain, the UK has four constituent parts. Three of these parts... British researcher John Frederic Daniell (March 12, 1790 - March 13, 1845) was an English chemist and physicist. Daniell was born in London, and in 1831 became the first professor of chemistry at the newly founded Kings College, London. His name is best known for his invention of the Daniell cell (Phil... John Frederic Daniell improved the voltaic cell. The Daniell cell consisted of Copper is also the title of a web and print comic: see Copper (comic). General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11 , 4, d Density, Hardness 8920 kg/m3, 3.0 Appearance copper, metallic Atomic properties Atomic weight 63.546 amu Atomic radius... copper and General Name, Symbol, Number zinc, Zn, 30 Chemical series transition metals Group, Period, Block 12, 4, d Density, Hardness 7140 kg/m3, 2.5 Appearance blueish pale grey Atomic properties Atomic weight 65.409 amu Atomic radius (calc.) 135 (142) pm Covalent radius 131 pm van der Waals radius 139... zinc plates and copper and zinc Sulfate is the IUPAC name for the SO42- ion, consisting of a central sulfur atom single bonded to four tetrahedrally oriented oxygen atoms. This anion has a net negative two electric charge. Almost all ionic compounds with sulfate anions are soluble in water at standard temperature and pressure (the exceptions... sulfates. It was used to operate telegraphs and doorbells. Between Events February 12 - Ecuador annexes the Galapagos Islands February 12 – serious cholera epidemic begins in London from the East London. It is declared officially over in early May but deaths continue. At least 3000 victims March 24 - In Hiram, Ohio a group of men beat, tar and feather Mormon... 1832 and Events January 1 - Abolition of customs charges at borders within Germany. January 3 - The government of Mexico imprisons Stephen F. Austin in Mexico City March 6 - York, Upper Canada is incorporated as Toronto. March 18 - The Tolpuddle Martyrs, six Dorset farm labourers, are sentenced to be transported to a penal... 1834, Michael Faraday Michael Faraday (September 22, 1791 - August 25, 1867) was a British scientist (a physicist and chemist) who contributed significantly to the fields of electromagnetism and electrochemistry. He also invented the earliest form of the device that was to become the Bunsen burner , which is used almost universally in... Michael Faraday conducted experiments with a Ferrites are ferromagnetic ceramic materials, compounds of iron, boron and barium or strontium or molybdenum. Ferrites have a high magnetic permeability, which allows them to store stronger magnetic fields than iron. Ferrites are often produced as powder, which can be sintered into solid cores. Ferrite cores are used in electronic... ferrite A ring is usually anything resembling a circle, or a noise that cycles rapidly. See: Different types of rings ring in ring theory of mathematics the ring of a telephone or bell a ring diacritic mark as in Åmål a web ring a jewelry ring (e.g. engagement ring... ring, a Wire carrying current to be measured Restoring spring A galvanometer is an electromechanical transducer. It produces a rotary motion, through a limited arc, in response to electric current flowing through its coil. The name galvanometer has been applied to devices used in measuring, recording, and positioning equipment. The most familiar... galvanometer, and a connected battery. When the battery was connected or disconnected, the galvanometer deflected. Faraday also developed the principle of This article is about the electrically charged molecule. For other uses of this word, see ion (disambiguation). An ion is an atom or group of atoms with a net electric charge. A negatively charged ion, which has gained one or more electrons, is known as an anion, for it is... ionic mobility in chemical reactions of batteries. In 1839 was a common year starting on Tuesday (see link for calendar). Events January 9 - The French Academy of Sciences announces the Daguerreotype photography process. January 19 - British East India Company captures Aden January 20 - In the Battle of Yungay, Chile defeats a Peruvian and Bolivian alliance. February 24 - William... 1839, William Grove may refer to: William Barry Grove, U.S. Congressman from North Carolina William Robert Grove, scientist This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. If an article link referred you here, you might want to go... William Robert Grove developed the first fuel cell, which produced The article on electrical energy is located elsewhere. Electricity is a property of certain subatomic particles (e.g. electrons / protons) which couples to electromagnetic fields and causes attractive and repulsive forces between them. Electricity gives rise to one of the four fundamental forces of nature, and is a conserved property... electrical Energy is a fundamental quantity that every physical system possesses; it allows us to predict how much work the system could be made to do, or how much heat it can exchange. In the past, energy was discussed in terms of easily observable effects it has on the properties of... energy by combining hydrogen and oxygen. Grove developed another form the electric cell using zinc and platinum electrodes. These electrodes were exposed to two acids separated by a diaphragm.

In the Events and trends Italian unification under King Victor Emmanuel II. Wars for expansion and national unity continue until the incorporation of the Papal States (March 17, 1861 - September 20, 1870). American Civil War fought between the remaining United States of America under President Abraham Lincoln and the self-declared Confederate... 1860s, Georges Leclanché of The French Republic or France ( French: République française or France) is a country whose metropolitan territory is located in western Europe, and which is further made up of a collection of overseas islands and territories located in other continents. France is a democracy organised as a... France developed a General Name, Symbol, Number Carbon, C, 6 Chemical series Nonmetals Group, Period, Block 14 (IVA), 2, p Density, Hardness 2267 kg/m3 0.5 (graphite) 3516 - 3525 kg/m3 10.0 (diamond) Appearance black (graphite) colourless (diamond) Atomic properties Atomic mass 12.0107 u Atomic radius (calc.) 70 (67) pm... carbon- General Name, Symbol, Number zinc, Zn, 30 Chemical series transition metals Group, Period, Block 12, 4, d Density, Hardness 7140 kg/m3, 2.5 Appearance blueish pale grey Atomic properties Atomic weight 65.409 amu Atomic radius (calc.) 135 (142) pm Covalent radius 131 pm van der Waals radius 139... zinc battery. It was a wet An electrochemical cell is a setup used for creating an electromotive force in a conductor separating two reactions. The current is caused by the reactions releasing and accepting electrons in to the different ends of the conductor. The most common example of an electrochemical cell is a standard 1.5... cell, with electrodes plunged into a body of An electrolyte is a substance which dissociates free ions when dissolved (or molten), to produce an electrically conductive medium. Because they generally consist of ions in solution, electrolytes are also known as ionic solutes. They are sometimes referred to in abbreviated jargon as lytes. Electrolytes generally exist as acids, bases... electrolyte FLUID widget list window FLUID (Fast Light User Interface Designer) is a graphical editor that is used to produce FLTK source code. FLUID edits and saves its state in text .fl files, which can be edited in a text editor for finer control over display and behavior. After designing the... fluid. It was rugged, manufactured easily, and had a decent shelf life. An improved version called a dry cell was later made by sealing the cell and changing the fluid electrolyte to a wet paste. The Leclanché cell is a type of primary (non-rechargeable) battery. In the Events and trends Italian unification under King Victor Emmanuel II. Wars for expansion and national unity continue until the incorporation of the Papal States (March 17, 1861 - September 20, 1870). American Civil War fought between the remaining United States of America under President Abraham Lincoln and the self-declared Confederate... 1860s, Raymond Gaston Plant invented the Lead-acid batteries are the most commonly used rechargeable batteries today. They also represent the oldest design with one of the worst energy to weight ratios. However, they are cheap and can supply high surge currents needed in starter motors. Every reasonably modern car uses a lead acid battery for... lead-acid battery. He immersed two thin solid lead plates separated by rubber sheets in a dilute sulfuric acid solution to make a secondary (rechargeable) battery. The original invention had a short shelf life, though. Around Events January - April January 16-24 ? Siege of Geok Tepe ? Russian troops under general Skobeleff defeat Turkomans January 25 - Thomas Edison and Alexander Graham Bell form the Oriental Telephone Company February 5 - Phoenix, Arizona is incorporated. February 13 - First issue of the feminist newspaper La Citoyenne is published... 1881, Émile Alphonse Faure, with his colleagues, developed batteries using a mixture of For the lead in news writing, see news style. For the lead in acting, see leading actor. General Name, Symbol, Number Lead, Pb, 82 Chemical series Poor metals Group, Period, Block 14(IVA), 6 , p Density, Hardness 11340 kg/m3, 1.5 Appearance bluish white Atomic properties Atomic weight Note... lead An oxide is a chemical compound of oxygen with other chemical elements, e.g. rust ( iron oxide) or bauxite ( aluminium oxide), usually created through the process of oxidation. Oxides are extremely common in Earths crust, and indeed in solid matter throughout the universe. Oxides can be named by how... oxides for the In common usage positive is sometimes used in affirmation, as a synonym for yes or to express certainty. In mathematics, a number is called positive if it is bigger than zero. See negative and non-negative numbers. In functional analysis, a bounded linear operator is positive if its spectrum consists... positive plate electrolyte. These had faster reactions and higher efficiency. In Events January - April January – Cleopatras Needle arrives in London January 9 - Humbert I becomes King of Italy January 23 – Disraeli orders British fleet to Dardanelles January 28 - The Yale News becomes the first daily, college newspaper in the United States. January 31 - Turkey agrees to armistice at... 1878, the air cell battery was developed. In Events January 1 - Brooklyn, New York merges with New York City. January 4 - A British force is ambushed by Chief Ologbosheri, son-in-law of the Oba of Benin. This leads to a Punitive Expedition against Benin. February 2 - Harrisburg, the Pennsylvania state capitol, is destroyed by fire. February 18... 1897, Nikola Tesla (July 10, 1856 - January 7, 1943) was a physicist, inventor, and electrical engineer of unusual intellectual brilliance and practical achievement. He was of Serb descent and worked mostly in the United States. Tesla is most famous for conceiving the rotating magnetic field principle (1882) and then using it... Nikola Tesla researched a lightweight Carbide is a polyatomic ion consisting of two carbon atoms or any salt containing such an ion. The ion carries a -2 charge. Under conditions of standard temperature and pressure, metal carbides react strongly with water to form metal oxides or hydroxides and flammable acetylene gas, e.g: CaC2 + 2H2O... carbide cell and a General Name, Symbol, Number Oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16 (VIA), 2, p Density, Hardness 1.429 kg/m3, NA Appearance colorless Atomic properties Atomic weight 15.9994 g/mol Atomic radius (calc.) 60 (48) pm Covalent radius 73 pm van der Waals radius 152 pm... oxygen- General Name, Symbol, Number Hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1 (IA), 1 , s Density, Hardness 0.0899 kg/m3, NA Appearance colorless Atomic properties Atomic weight 1.00794 amu Atomic radius (calc) 25 (53) pm Covalent radius 37 pm van der Waals radius 120 pm Electron... hydrogen A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i.e. it produces electricity from an external fuel supply as opposed to the limited internal energy storage capacity of a battery... storage cell. In 1898 Nathan B. Stubblefield was the son of a lawyer, (Capt Billy, and educator: Nathan Founded the Teléph-on-délgreen Campus in Murray, Kentucky. Teléph-on-délgreen is now the campus where Murray State University is located. Over one hundred ten years ago, the school was called... Nathan Stubblefield received approval for a battery patent (US600457): this electrolytic coil patent is referred to as an " An earth battery is an early type of voltaic cell buried in the ground so that the soil acts as the electrolyte. The electrodes are made of two dissimilar metals such as iron and copper. The earliest example of an earth battery is by Alexander Bain in 1841. Bain buried... earth battery".

In 1900 is a common year starting on Monday. Events January January 1 - Nigeria becomes a British protectorate January 2 - John Hay announces the Open Door Policy to promote trade with China. January 2 - Chicago Canal opens. January 5 - Irish leader John Edward Redmond calls for a revolt against British rule... 1900, Thomas Alva Edison (February 11, 1847 - October 18, 1931) was an inventor and businessman who developed many important devices. The Wizard of Menlo Park was one of the first inventors to apply the principles of mass production to the process of invention. Edison was considered one of the most prolific... Thomas Edison developed the This article is about the element nickel. See also nickel (U.S. coin) and nickel (Canadian coin). General Name, Symbol, Number nickel, Ni, 28 Chemical series transition metals Group, Period, Block 10 , 4 , d Density, Hardness 8908 kg/m³, 4.0 Appearance lustrous, metallic Atomic properties Atomic weight 58.6934... nickel storage battery. In 1905 was a common year starting on Sunday (see link for calendar). Events January-April January 22 - Massacre of Russian demonstrators at the Winter Palace in Saint Petersburg, one of the triggers of the abortive Russian Revolution of 1905. January 26 - The Cullinan Diamond is found near Pretoria, South Africa... 1905, Edison developed the This article is about the element nickel. See also nickel (U.S. coin) and nickel (Canadian coin). General Name, Symbol, Number nickel, Ni, 28 Chemical series transition metals Group, Period, Block 10 , 4 , d Density, Hardness 8908 kg/m³, 4.0 Appearance lustrous, metallic Atomic properties Atomic weight 58.6934... nickel- General Name, Symbol, Number iron, Fe, 26 Chemical series transition metal Group, Period, Block 8 (VIIIB), 4 , d Density, Hardness 7874 kg/m3, 4.0 Appearance lustrous metallic with a greyish tinge Atomic properties Atomic weight 55.845 amu Atomic radius (calc.) 140 (156) pm Covalent radius 125 pm van... iron battery. Like all electrochemical cells, Edison's produced a In electricity, current is the rate of flow of charges, usually through a metal wire or some other electrical conductor. Conventional current was defined early in the history of electrical science as a flow of positive charge, although we now know that, in the case of metallic conduction, current is... current of Properties The electron (also called negatron, commonly represented as e−) is a subatomic particle. In an atom the electrons surround the nucleus of protons and neutrons in an electron configuration. The word electron is a transliteration of the Greek word ηλεκτρον, which... electrons that flowed only in one direction, known as Direct current (DC or continuous current) is the continuous flow of electricity through a conductor such as a wire from high to low potential. In direct current, the electric charges flow always in the same direction, which distinguishes it from alternating current (AC). Types of direct current Direct current was... direct current. In Mushroom cloud from the nuclear explosion over Nagasaki rising 18 km (60,000 ft) into the air. August 9, 1945 World War II was a global conflict that started in 7 July 1937 in Asia and 1 September 1939 in Europe and lasted until 1945, involving the majority of the... World War II, Samuel Ruben and Philip Rogers Mallory developed the General Name, Symbol, Number Mercury, Hg, 80 Chemical series transition metals Group, Period, Block 12 (IIB), 6 , d Density, Hardness liquid 13.579e3 kg/m3 solid @ -39oC 15.6e3 kg/m3 1.5 Mohs Appearance Silvery white Atomic properties Atomic weight 200.59 amu Atomic radius (calc.) 150 (171) pm... mercury cell. In the Events and trends Technology United States tests the first fusion bomb. See History of nuclear weapons Sputnik, the first man-made satellite, and thus the Sputnik crisis The De Havilland Comet enters service as the worlds first jet airliner Charles Townes builds a maser in 1953 at Columbia University... 1950s, Russell S. Ohl developed a wafer of General Name, Symbol, Number silicon, Si, 14 Series metalloid Group, Period, Block 14 (IVA), 3, p Density, Hardness 2330 kg/m3, 6.5 Appearance dark grey, bluish tinge Atomic properties Atomic weight 28.0855 amu Atomic radius (calc.) 110 pm (111 pm) Covalent radius 111 pm van der Waals radius... silicon that produced free Properties The electron (also called negatron, commonly represented as e−) is a subatomic particle. In an atom the electrons surround the nucleus of protons and neutrons in an electron configuration. The word electron is a transliteration of the Greek word ηλεκτρον, which... electrons. In the Events and trends Technology United States tests the first fusion bomb. See History of nuclear weapons Sputnik, the first man-made satellite, and thus the Sputnik crisis The De Havilland Comet enters service as the worlds first jet airliner Charles Townes builds a maser in 1953 at Columbia University... 1950s, Ruben improved the The common (Arrhenius) definition of a base is a chemical compound that either donates hydroxide ions or absorbs hydrogen ions when dissolved in water. Bases and acids are referred to as opposites because the effect of an acid is to increase the hydronium ion concentration in water, whereas bases reduce... alkaline General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7 , 4 , d Density, Hardness 7470 kg/m3, 6.0 Appearance silvery metallic Atomic properties Atomic weight 54.938049 amu Atomic radius (calc.) 140 (161) pm Covalent radius 139 pm van der Waals radius n/a... manganese battery. In 1954 was a common year starting on Friday (link will take you to calendar). Events January events January 14 - The Hudson Motor Car Company merges with Nash-Kelvinator forming the American Motors Corporation January 14 - Marilyn Monroe weds Joe DiMaggio. January 15 - Mau Mau leader Waruhiu Itote is captured in... 1954, Gerald L. Pearson, Daryl M. Chapin, and Calvin S. Fuller produced an array of several such wafers, making the first solar battery or A solar cell, a form of photovoltaic cell, is a device that uses the photoelectric effect to generate electricity from light, thus generating solar power (energy). Solar cells are used to power many kinds of equipment, including satellites, calculators, remote radiotelephones, and advertising signs. Most often, many cells are linked... solar cell. In 1956 is a leap year starting on Sunday. (see link for calendar) Events January January 1 - End of Egyptian Condominium in Sudan. January 16 - President Egypt vows to reconquer Palestine January 26 - Italy January 26 - United Kingdom bans heroin January 26 - The last Soviet troops leave the military base in... 1956, Francis Thomas Bacon (December 21, 1904 - 1992), born at Ramsden Hall, Billericay, Essex, UK was a British Engineer. Educated at Eton College and Trinity College Cambridge. Worked in the field of battery technology. Developer of the Hydrogen-Oxygen fuel cell. Categories: 1904 births | 1992 deaths ... Francis Thomas Bacon developed the General Name, Symbol, Number Hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1 (IA), 1 , s Density, Hardness 0.0899 kg/m3, NA Appearance colorless Atomic properties Atomic weight 1.00794 amu Atomic radius (calc) 25 (53) pm Covalent radius 37 pm van der Waals radius 120 pm Electron... hydrogen- General Name, Symbol, Number Oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16 (VIA), 2, p Density, Hardness 1.429 kg/m3, NA Appearance colorless Atomic properties Atomic weight 15.9994 g/mol Atomic radius (calc.) 60 (48) pm Covalent radius 73 pm van der Waals radius 152 pm... oxygen A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i.e. it produces electricity from an external fuel supply as opposed to the limited internal energy storage capacity of a battery... fuel cell. In 1959 was a common year starting on Thursday (link will take you to calendar). Events January-February January 1 - Cultivars of plants named after this date must be named in a modern language, not in Latin. January 1 - Cuba: Fulgencio Batista flees Havana when forces of Fidel Castro advance January... 1959, Lewis Frederick Urry, (January 29, 1927-October 19, 2004), was a Canadian chemical engineer and inventor. He invented both the alkaline battery and lithium battery whilst working for the Eveready Battery company. Urry was born in Pontypool, Ontario and graduated with a degree in chemical engineering from the University of... Lewis Urry developed the small The common (Arrhenius) definition of a base is a chemical compound that either donates hydroxide ions or absorbs hydrogen ions when dissolved in water. Bases and acids are referred to as opposites because the effect of an acid is to increase the hydronium ion concentration in water, whereas bases reduce... alkaline battery at the Energizer Holdings (formerly Eveready Battery), headquartered in St. Louis, Missouri, best known for its pink Energizer Bunny, is an American manufacturer of batteries with a market share of approximately 30%, with markets in over 150 countries. Formerly a division of Ralston Purina (which purchased them from Union Carbide in 1986... Eveready Battery Company laboratory in Parma is a medieval city in the Italian region of Emilia-Romagna, with splendid architecture and a fine countryside around it. The city was most probably founded and named by the Etruscans, for a parma (circular shield) was a Latin borrowing, as were many Roman terms for particular arms, and... Parma, State nickname: The Buckeye State Other U.S. States Capital Columbus Largest city Columbus Governor Bob Taft Official languages None Area 116,096 km² (34th)  - Land 106,154 km²  - Water 10,044 km² (8.7%) Population (2000)  - Population 11,353,140 (7th)  - Density 107... Ohio. In the Centuries: 19th century - 20th century - 21st century Decades: 1900s 1910s 1920s 1930s 1940s 1950s - 1960s - 1970s 1980s 1990s 2000s 2010s Years: 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 Events and trends The 1960s was a turbulent decade of change around the world. Many of the trends of... 1960s, German researchers invented a gel-type electrolyte lead-acid battery. Categories: Corporation stubs ... Duracell was formed in 1964 was a leap year starting on Wednesday (link will take you to calendar). Events January January 1 - Federation of Rhodesia and Nyasaland is dissolved. January 3 - Senator Barry Goldwater announces that he will seek the Republican nomination for President. January 5 - In the first meeting between leaders of the... 1964.

The future

Initial research indicates that A mite next to a gear chain produced using nanotechnology Nanotechnology as a collective term refers to technological developments on the nanometer scale, usually 0.1-100nm. (One nanometer equals one thousandth of a micrometer or one millionth of a millimeter.) The term sometimes applies to any microscopic technology. Due... nanotechnology batteries employing An electronic device known as a diode can be formed by joining two nanoscale carbon tubes with different electronic properties. Carbon nanotubes are cylindrical carbon molecules with properties that make them potentially useful in extremely small scale electronic and mechanical applications. They exhibit unusual strength and unique electrical properties, and... carbon nanotubes will have twice the life of traditional modern batteries.

A new form of battery is in development called Power paper is a kind of battery in development which is in the form of ink cells, able to be printed on almost any surface and produce electric power. There are many potential uses for this new technology. Categories: Technology stubs ... Power Paper. This thin, flexible battery comes in the form of ink cells which can be printed on to virtually any surface and produce power.

Electrical component

Circuit symbol for a battery (+ and - signs are optional)

The cells in a battery can be connected in parallel or in series, or both. A parallel combination of cells has the same In the physical sciences, potential difference is the difference in potential between two points in a conservative vector field. In engineering, it is sometimes described as the across variable, where flux is the through variable. Production The product of the flux and the potential difference is the power, which is... voltage as a single cell, but can supply a higher In electricity, current is the rate of flow of charges, usually through a metal wire or some other electrical conductor. Conventional current was defined early in the history of electrical science as a flow of positive charge, although we now know that, in the case of metallic conduction, current is... current (the sum of the currents from all the cells). On the other hand, a series combination has the same current rating as a single cell but its voltage is the sum of the voltages of all the cells. Most practical electrochemical batteries, such as 9 The volt is the SI derived unit for electric potential and voltage (derived from the ampere and watt). It is named in honor of Alessandro Volta, who, in 1800, invented the voltaic pile, the first chemical battery. The volt is defined as the potential difference across a conductor when a... volt flashlight (torch) batteries and 12 V A small variety of cars, the most popular kind of automobile. An automobile is a wheeled vehicle that carries its own engine. Different types of automobile include cars, buses, vans and trucks, with cars being the most popular by far. Older terms include horseless carriage and motor car, with motor... automobile (car) batteries, have a series structure. Parallel arrangements suffer from the problem that, if one cell discharges faster than its neighbour, current will flow from the full cell to the empty cell, wasting power and possibly causing overheating. Even worse, if one cell becomes short-circuited due to an internal fault, its neighbour will be forced to discharge its maximum current into the faulty cell, leading to overheating and possibly explosion. Cells in parallel are therefore usually fitted with an electronic circuit to protect them against these problems. In both series and paralllel types, the energy stored in the battery is equal to the sum of the energies stored in all the cells.

A battery can be modelled as a perfect voltage source (i.e. one with zero internal Electrical resistance is a measure of the degree to which an electrical component opposes the passage of current. It is the ratio of the potential difference (i.e. voltage) across an electric component (such as a resistor) to the current passing through that component: where R is the resistance of... resistance) in series with a An ideal resistor is a component with an electrical resistance that remains constant regardless of the applied voltage or current flowing through the device. While real world resistors cannot attain this perfect goal, they are designed to present little variation in electrical resistance when subjected to changing temperature and other... resistor. The voltage source depends mainly on the chemistry of the battery, not on whether it is empty or full. When a battery runs down, its internal Electrical resistance is a measure of the degree to which an electrical component opposes the passage of current. It is the ratio of the potential difference (i.e. voltage) across an electric component (such as a resistor) to the current passing through that component: where R is the resistance of... resistance increases. When the battery is connected to a load (e.g. a The incandescent light bulb uses a glowing wire filament heated to white-hot by electrical resistance, to generate light (a process known as thermal radiation). The bulb is the glass enclosure which keeps the filament in a vacuum or low-pressure noble gas, or a halogen gas in the case... light bulb), which has its own resistance, the resulting voltage across the load depends on the ratio of the battery's The output impedance, source impedance, or internal impedance of an electronic device is the opposition exhibited by its output terminals to the flow of an alternating current (AC) of a particular frequency as a result of resistance, induction and capacitance. The impedance at DC (frequency of 0) is the same... internal resistance to the resistance of the load. When the battery is fresh, its internal resistance is low, so the voltage across the load is almost equal to that of the battery's internal voltage source. As the battery runs down and its internal resistance increases, the proportion of its internal voltage that gets through the internal resistance to appear at the load gets smaller, so the battery's ability to deliver Transmission lines in Lund, Sweden Electric power, often known as power or electricity, involves the production and delivery of electrical energy in sufficient quantities to operate domestic appliances, office equipment, industrial machinery and provide sufficient energy for both domestic and commercial lighting, heating, cooking and industrial processes. History Although electricity... power to the load decreases.

Common battery types

Various batteries: two 9-volt, two AAA, two AA, and one each of C, D, a cordless phone battery, a camcorder battery, a 2-meter handheld ham radio battery, and a button battery; plus, a US quarter, for scale. Taken by Brianiac, Fri Sep 26. This image has been released...

various batteries

From a user's viewpoint, at least, batteries can be generally divided into two main types - Rechargeable batteries are batteries that can be restored to full charge by the application of electrical energy. They come in many different designs using different chemistry. They are also called storage battery or secondary cell. In the order of improving energy per weight ratios there are: Gel battery Lead-acid... rechargeable and non-rechargeable (disposable). Each is in wide usage.

Disposable batteries, also called primary cells, are intended to be used once, until the chemical changes that induce the electrical current supply are complete, at which point the battery is discarded. These are most commonly used in smaller, portable devices with either low current drain, only used intermittently, or used well away from an alternative power source. See also: This article is about waste matter. For the computer program, see WASTE. Waste inside a Trash can Waste is unwanted or undesired material left over after the completion of a process. Waste can exist in any phase of matter (IE. solid, liquid, or gas). When released in the latter two... waste.

By contrast, rechargeable batteries or secondary cells can be re-charged after they have been drained. This is done by applying externally supplied electrical current which causes the chemical changes that occur in use to be reversed. Devices to supply the appropriate current are called chargers or rechargers.

The oldest form of rechargeable battery still in modern usage is the wet cell Lead-acid batteries are the most commonly used rechargeable batteries today. They also represent the oldest design with one of the worst energy to weight ratios. However, they are cheap and can supply high surge currents needed in starter motors. Every reasonably modern car uses a lead acid battery for... lead-acid battery. This battery is notable in that it contains a liquid in an unsealed container, requiring that the battery be kept upright and the area be well-ventilated to deal with the explosive General Name, Symbol, Number Oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16 (VIA), 2, p Density, Hardness 1.429 kg/m3, NA Appearance colorless Atomic properties Atomic weight 15.9994 g/mol Atomic radius (calc.) 60 (48) pm Covalent radius 73 pm van der Waals radius 152 pm... oxygen and General Name, Symbol, Number Hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1 (IA), 1 , s Density, Hardness 0.0899 kg/m3, NA Appearance colorless Atomic properties Atomic weight 1.00794 amu Atomic radius (calc) 25 (53) pm Covalent radius 37 pm van der Waals radius 120 pm Electron... hydrogen gases which are vented by these batteries during overcharging. The Lead-acid batteries are the most commonly used rechargeable batteries today. They also represent the oldest design with one of the worst energy to weight ratios. However, they are cheap and can supply high surge currents needed in starter motors. Every reasonably modern car uses a lead acid battery for... lead-acid battery is also very heavy for the amount of electrical energy it can supply. Despite this, its low manufacturing cost and its high surge current levels make its use common where the weight and ease of handling are not concerns.

A common form of lead-acid battery is the modern A small variety of cars, the most popular kind of automobile. An automobile is a wheeled vehicle that carries its own engine. Different types of automobile include cars, buses, vans and trucks, with cars being the most popular by far. Older terms include horseless carriage and motor car, with motor... car battery. This can deliver about 10,000 The watt (symbol: W) is the SI derived unit for power. It is equivalent to one joule per second (1 J/s), or in electrical units, one volt ampere (1 V·A). It is the rate in joules per second at which energy is being converted, used, or dissipated. Equations... watts of power at a nominal 12 The volt is the SI derived unit for electric potential and voltage (derived from the ampere and watt). It is named in honor of Alessandro Volta, who, in 1800, invented the voltaic pile, the first chemical battery. The volt is defined as the potential difference across a conductor when a... volts (although the true open-circuit voltage is closer to 13.7 V) and has a peak current output that varies from 450 to 1100 Amp re can refer to: Amp re (car) Ampere (unit) Andr -Marie Amp re This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. If an article link referred you here, you might want to go back and fix it... amperes. The battery's electrolyte is Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. It is soluble in water at all concentrations. The old name for sulfuric acid was oil of vitriol. When high concentrations of SO3(g) are added to sulfuric acid, H2S2O7 forms. This is called fuming sulfuric acid or... sulfuric acid, which can cause serious injury if splashed on the skin or eyes.

A more expensive type of lead-acid battery called a gel battery (or "gel cell") contains a semi-solid electrolyte to prevent spillage. More portable rechargeable batteries include several "dry cell" types, which are sealed units and are therefore useful in appliances like Cellular redirects here. For the 2004 movie see Cellular (movie). A mobile phone, the Sony Ericsson T630 A mobile phone is a device which behaves as a normal telephone whilst being able to move over a wide area (cf. cordless phone which acts as a telephone only within a limited... mobile phones and Laptop with touchpad. Laptop can be taken anywhere. A laptop computer (also known as notebook computer) is a small mobile personal computer, usually weighing around from 1 to 3 kilograms (2 to 7 pounds). Notebooks smaller than an A4 sheet of paper and weighing around 1 kg are sometimes called... laptops. Cells of this type (in order of increasing power density and cost) include nickel-cadmium (nicad or The nickel-cadmium battery (commonly abbreviated NiCd or NiCad) is a popular type of rechargeable battery for portable electronics and toys. They are sometimes used as a replacement for so called primary batteries, such as heavy duty or alkaline, being available in many of the same sizes. In addition, specialty... NiCd), nickel metal hydride ( Modern, high capacity NiMH batteries A Nickel metal hydride (or NiMH) battery is a type of rechargeable battery similar to a nickel-cadmium (NiCad) battery but without the expensive and environmentally unfriendly metal cadmium. This is why they are sometimes called the most environmentally friendly battery type. NiMH batteries tend... NiMH), and Li-Ion Camera Battery Lithium ion batteries (or Li-ion) have become very common and dropped in price recently. They provide one of the best energy-per-weight ratios of rechargeable batteries at present. They have succeeded nickel metal hydride and nickel-cadmium batteries in consumer electronics such as cellular... lithium-ion ( Li-Ion Camera Battery Lithium ion batteries (or Li-ion) have become very common and dropped in price recently. They provide one of the best energy-per-weight ratios of rechargeable batteries at present. They have succeeded nickel metal hydride and nickel-cadmium batteries in consumer electronics such as cellular... Li-Ion) cells.

Common battery sizes

Disposable cells come in a number of standard sizes, so the same battery type can be used in a wide variety of appliances. Some of the major types used in portable appliances are listed below:

Note: 6 V, 9 V, and 12 V batteries are commonly made using multiple 1.5 V cells placed in series. See An electrochemical cell is a setup used for creating an electromotive force in a conductor separating two reactions. The current is caused by the reactions releasing and accepting electrons in to the different ends of the conductor. The most common example of an electrochemical cell is a standard 1.5... electrochemical cell.

The relevant European standard is IEC 60086-1 Primary batteries - Part 1: General (BS397 in the UK).

The relevant US standard is ANSI C18.1 American National Standard for Dry Cells and Batteries-Specifications.

An extensive series of articles on many aspects of batteries and their use in portable equipment is available at Buchmann.ca (http://www.buchmann.ca/).

Summary

Disposable

• Zinc-carbon battery
• Alkaline batteries are a type of power cell dependent upon the reaction between zinc and manganese dioxide (Zn/Mn02). Compared with traditional carbon/zinc batteries, whilst both produce approximately 1.5 volts per cell, alkaline batteries have a higher energy density and longer shelf-life. Compared with silver-oxide batteries... Alkaline battery
• Silver-oxide battery
• Lithium battery
• Zinc-air battery

Rechargeable

• Lead-acid batteries are the most commonly used rechargeable batteries today. They also represent the oldest design with one of the worst energy to weight ratios. However, they are cheap and can supply high surge currents needed in starter motors. Every reasonably modern car uses a lead acid battery for... Lead-acid battery
• Gel battery
• The nickel-cadmium battery (commonly abbreviated NiCd or NiCad) is a popular type of rechargeable battery for portable electronics and toys. They are sometimes used as a replacement for so called primary batteries, such as heavy duty or alkaline, being available in many of the same sizes. In addition, specialty... NiCd battery
• Modern, high capacity NiMH batteries A Nickel metal hydride (or NiMH) battery is a type of rechargeable battery similar to a nickel-cadmium (NiCad) battery but without the expensive and environmentally unfriendly metal cadmium. This is why they are sometimes called the most environmentally friendly battery type. NiMH batteries tend... NiMH battery
• Li-Ion Camera Battery Lithium ion batteries (or Li-ion) have become very common and dropped in price recently. They provide one of the best energy-per-weight ratios of rechargeable batteries at present. They have succeeded nickel metal hydride and nickel-cadmium batteries in consumer electronics such as cellular... Li-ion battery
• Lithium polymer batteries (Li-Poly or LiPo) are rechargeable batteries which have technologically evolved from lithium ion batteries. The lithium salt electrolyte is not held in an organic solvent, like in the proven lithium ion design, but in a solid polymer composite such as polyacrylonitrile. There are many advantages of... Li-Polymer battery
• A NaS battery is a type of battery contructed from Sodium (Na) and Sulfur (S). This type of battery exhibits a high energy density, high efficiency of charge/discharge and is made from inexpensive, non-toxic materials. However, the operating temperature of 300-350 C and the highly corrosive nature... NaS battery

Battery capacity

The capacity of a battery to store charge is often expressed in Amp re can refer to: Amp re (car) Ampere (unit) Andr -Marie Amp re This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. If an article link referred you here, you might want to go back and fix it... ampere hours (1 A·h = 3600 The coulomb, symbol C, is the SI unit of electric charge, and is defined in terms of the ampere: 1 coulomb is the amount of electric charge (quantity of electricity) carried by a current of 1 ampere flowing for 1 second. It is also about 6.241506×1018 times the... coulombs). If a battery can provide one ampere (1 A) of current (flow) for one hour, it has a real-world capacity of 1 A·h. If it can provide 1 A for 100 hours, its capacity is 100 A·h. Likewise, 20 A for 2 hours equals 40 A·h capacity. But...

While a battery that can deliver 10 A for 10 hours can be said to have a capacity of 100 A·h, that is not how the rating is determined by the manufacturers. A 100 A·h rated battery most likely will not deliver 10 A for 10 hours. Battery manufacturers use a standard method to determine how to rate their batteries. Their rating is based on tests performed over 20 hours with a discharge rate of 1/20 (5%) of the expected capacity of the battery. So a 100 ampere-hour battery is rated to provide 5 A for 20 hours. The efficiency of a battery is different at different discharge rates. When discharging at 1/20 of their capacity, batteries are more efficient than at higher discharge rates.

To calculate the 5% discharge rate of a battery, take the manufacturer's ampere-hour rating and divide it by 20. For example, you have a AA cell rated at 1300 mA h (milliampere hours). The 5% discharge rate from which this rating was derived would be 1300 mA·h / 20 h = 65 mA.

See also

People/inventors

• Luigi Galvani Luigi Galvani (September 9, 1737–December 4, 1798) was an Italian physician and physicist who lived and died in Bologna. Dissecting a frog at a table where he had been conducting experiments with static electricity, Galvani touched an exposed sciatic nerve of the frog with his metal... Luigi Galvani
• Alessandro Giuseppe Antonio Anastasio Volta Alessandro Giuseppe Antonio Anastasio Volta (February 18, 1745 - March 5, Italian physicist known especially for the development of the electric battery. Late in life, he received the title of Count. Biography Volta was born and educated in Como Italy, where he became professor of physics... Alessandro Volta
• Slavoljub Eduard Penkala (April 20, 1871 - February 5, 1922) was an engineer and inventor from Croatia. Penkala was born in Liptovský Mikuláš (in what is now Slovakia), to a Polish/Dutch family. He finished schooling in Vienna and Dresden. He then immigrated with his family to Zagreb and subsequently... Slavoljub Penkala
• John Frederic Daniell (March 12, 1790 - March 13, 1845) was an English chemist and physicist. Daniell was born in London, and in 1831 became the first professor of chemistry at the newly founded Kings College, London. His name is best known for his invention of the Daniell cell (Phil... John Frederic Daniell
• Moritz Hermann von Jacobi (September 21, 1801 - March 10, 1874) was a Prussian engineer and physicist born in Potsdam. Jacobi worked mainly in Russia. He futhered progress in galvanoplastics, electric motors, and wire telegraphy. Motors In 1834 he began to study magnetic motors. He moved to St. Petersburg in 1837... Moritz von Jacobi
• Nikola Tesla (July 10, 1856 - January 7, 1943) was a physicist, inventor, and electrical engineer of unusual intellectual brilliance and practical achievement. He was of Serb descent and worked mostly in the United States. Tesla is most famous for conceiving the rotating magnetic field principle (1882) and then using it... Nikola Tesla
• Georges Leclanché

Related electrical topics

• In the physical sciences, potential difference is the difference in potential between two points in a conservative vector field. In engineering, it is sometimes described as the across variable, where flux is the through variable. Production The product of the flux and the potential difference is the power, which is... Potential difference
• An electric vehicle is a vehicle that is propelled by electric motors. This is the case for metros and usually trams, and for some trains (i.e. for some locomotives and often for multiple units), and for electric trolleybuses. Helios Prototype is the name of a solar- and fuel cell... Electric vehicle
• The efficiency of an entity (a device, component, or system) in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed (a fractional expression). Efficiency should not be confused with effectiveness: a system that wastes most of its input power but produces exactly... Electrical efficiency
• The article on electrical energy is located elsewhere. Electricity is a property of certain subatomic particles (e.g. electrons / protons) which couples to electromagnetic fields and causes attractive and repulsive forces between them. Electricity gives rise to one of the four fundamental forces of nature, and is a conserved property... Electricity
• An electrochemical cell is a setup used for creating an electromotive force in a conductor separating two reactions. The current is caused by the reactions releasing and accepting electrons in to the different ends of the conductor. The most common example of an electrochemical cell is a standard 1.5... Electrochemical cell
• Electrochemical potential is a thermodynamic measure that reflects energy from entropy and electrostatics and is typically invoked in molecular processes that involve diffusion. It represents one of many interchangeable forms of potential energy through which energy may be conserved. In electrochemistry, electrochemical potential (also called electrode potential) is the mechanical... Electrochemical potential
• Electrochemistry is the study of the electronic and electrical aspects of chemical reactions. The elements involved in an electrochemical reaction are characterized by the number of electrons each has. The oxidation state of an ion is the number of electrons it has accepted or donated compared to its neutral state... Electrochemistry
• An electromotive force (emf) is the force, measured in volts, that is produced by interaction between a current and a magnetic field, at least one of which is changing. Since the word force now has a very specific meaning in physics, and an emf is not a force in this... Electromotive force
• Electroplating is the the coating of an electrically conductive item with a layer of metal using electrical current. Process The process used in electroplating is called electrodeposition. The item to be coated is placed into a container containing a solution of one or more metal salts. The item is connected... Electroplating
• Energy storage is the storing of some form of energy that can be drawn upon at a later time to perform some useful operation. History Power storage as a natural process is billions of years old - the energy produced in the initial creation of the Universe has been stored in... Energy storage
• In telecommunication, the term local battery has the following meanings: 1. In telegraphy, the source of power that actuates the telegraphic station recording instruments, as distinguished from the source of power that furnishes current to the line. 2. In telephony, a system in which each telephone instrument has its own... Local battery
• A power supply unit (sometimes abbreviated power supply or PSU) is a device that supplies electrical power to a device or group of devices. The term is most commonly applied to units that are integrated with the devices they supply, such as computers and household electronics, and never to devices... Power supply
• Direct current (DC or continuous current) is the continuous flow of electricity through a conductor such as a wire from high to low potential. In direct current, the electric charges flow always in the same direction, which distinguishes it from alternating current (AC). Types of direct current Direct current was... Direct current
• Solar power describes a number of methods of harnessing energy from the light of the sun. It has been present in many traditional building methods for centuries, but has become of increasing interest in developed countries as the environmental costs and limited supply of other power sources such as fossil... Solar power
• Renewable energy (sources) or RES includes all sources of energy that are captured from on-going natural processes, such as solar power, wind power, water flow in streams (hydro power), biomass, biodiesel and geothermal heat flows. Most renewable forms of energy, other than geothermal and tidal power, come from the... Renewable energy

Related electronics concepts

• Left: Series  / Right: Parallel Arrows indicate direction of current flow. The red bars represent the voltage as it becomes dropped in the series circuit. The red bars in the parallel circuit dont lower because voltage is the same throughout a parallel circuit. In electrical circuits series and... Series and parallel circuits
• A secondary cell is any kind of electrolytic cell in which the electrochemical reaction of interest is reversible. Widespread examples are rechargeable batteries (such as Ni-Cd (nicad) batteries in portable consumer electronics, and lead-acid ones in automobile ignition systems). See also Battery Fuel cell (reactants flow in, products... Secondary cell
• Alternative meanings: There is also an Electric-type Pokémon named Electrode. An electrode is a conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum). The word was coined by the scientist Michael Faraday from the Greek words... Electrode
• Electrolytic capacitors An electrolytic capacitor is a type of capacitor with a larger capacitance per unit volume than other types, making them valuable in relatively high-current and low-frequency electrical circuits. This is especially the case in power-supply filters, where they store charge needed to moderate output voltage... Electrolytic capacitor
• A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i.e. it produces electricity from an external fuel supply as opposed to the limited internal energy storage capacity of a battery... Fuel cell
• The Galvanic cell, named after Luigi Galvani, consists of two metals connected by an electrolyte which forms a salt bridge between the metals. In 1780, Luigi Galvani discovered that when two different metals (copper and zinc for example) were connected together and then both touched to different parts of a... Galvanic cell
• The ignition system of an internal-combustion engine is an important part of the overall engine system. It provides for the timely burning of the fuel mixture within the engine. Not all engine types need an ignition system - for example, a diesel engine relies on compression-ignition, that is, the... Ignition system
• UNDER REVISION WARNING: THE EXPERIMENT DESCRIBED DOES NOT WORK. A SINGLE LEMON BATTERY CANNOT LIGHT AN INCANDESCENT BULB. HOWEVER, FOUR LEMON BATTERIES WIRED IN SERIES CAN LIGHT A RED LED (LIGHT-EMITTING DIODE.) Apparatus A large lemon A strip of zinc A strip of copper A low voltage mes bulb... Lemon battery
• A jump start is a colloquial term for a method of starting an automobile or other internal combustion engine-powered vehicle having a discharged battery. Most U.S. passenger vehicles use a standard 12-volt DC battery which, when the driver turns the ignition key, an electric motor engages the... Jump start
• Stone lantern A lantern is a portable lighting device used to illuminate broad areas. Lanterns may be used for signaling, or as general light sources for camping. Dim varieties are often used for decorative purposes. Some lanterns are battery-powered and have a lightbulb, often of the fluorescent type. They... Lantern
• A recent innovation in electrical energy storage is the use of flywheel energy storage, also called flywheel power storage. A typical system consists of a massive flywheel disc suspended by magnetic bearings inside a vacuum chamber to reduce friction, connected to a combination electric motor/electric generator. The wheels are... Flywheel energy storage
• Rechargeable batteries are batteries that can be restored to full charge by the application of electrical energy. They come in many different designs using different chemistry. They are also called storage battery or secondary cell. In the order of improving energy per weight ratios there are: Gel battery Lead-acid... Rechargeable battery
• This article or section should be merged with Impedance matching. (Emphasize the differences; consolidate the similarities.) In electrical engineering, the maximum power theorem states that for the transfer of maximum power from a source with a fixed internal resistance to a load, the resistance of the load must be the... Maximum power theorem
• In electrochemistry, the Nernst equation gives the electrode potential (E), relative to the standard electrode potential, (E0), of the electrode couple or, equivalently, of the half cells of a battery R is the universal gas constant, equal to 8.314570 J K-1 mol-1 T the temperature in kelvins... Nernst equation
• Superconducting Magnetic Energy Storage (SMES) uses the ability of certain materials to conduct electricity without resistance (superconductivity) to store electrical power. Technology A common design of a SMES installation would consist of a coil of superconducting wire buried underground, with power conditioning equipment connecting the coil to the electricity distribution... Superconducting magnetic energy storage
• Grid energy storage

Chemicals used in construction

• General Name, Symbol, Number sulfur, S, 16 Chemical series nonmetals Group, Period, Block 16 (VIA), 3 , p Density, Hardness 1960 kg/m3, 2 Appearance Lemon yellow at STP Atomic properties Atomic weight 32.065 amu Atomic radius (calc.) 100 pm (88 pm) Covalent radius 102 pm van der Waals radius... Sulfur
• General Name, Symbol, Number Mercury, Hg, 80 Chemical series transition metals Group, Period, Block 12 (IIB), 6 , d Density, Hardness liquid 13.579e3 kg/m3 solid @ -39oC 15.6e3 kg/m3 1.5 Mohs Appearance Silvery white Atomic properties Atomic weight 200.59 amu Atomic radius (calc.) 150 (171) pm... Mercury
• Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. It is soluble in water at all concentrations. The old name for sulfuric acid was oil of vitriol. When high concentrations of SO3(g) are added to sulfuric acid, H2S2O7 forms. This is called fuming sulfuric acid or... Sulfuric acid
• General Name, Symbol, Number zinc, Zn, 30 Chemical series transition metals Group, Period, Block 12, 4, d Density, Hardness 7140 kg/m3, 2.5 Appearance blueish pale grey Atomic properties Atomic weight 65.409 amu Atomic radius (calc.) 135 (142) pm Covalent radius 131 pm van der Waals radius 139... Zinc
• Ammonium chloride or Sal Ammoniac (chemically ammonium chloride (NH4Cl); also zalmiak, sal armagnac, sal armoniac, and salt armoniack) is, in its pure form, a clear white water-soluble crystalline salt with a biting taste. In nature, the substance occurs in volcanic regions, forming on volcanic rocks near fume-releasing vents... Ammonium chloride
• General Name, Symbol, Number antimony, Sb, 51 Series metalloids Group, Period, Block 15 (VA), 5, p Density, Hardness 6697 kg/m3, 3 Appearance silvery lustrous grey Atomic properties Atomic weight 121.760 amu Atomic radius (calc.) 145 (133) pm Covalent radius 138 pm van der Waals radius no data Electron... Antimony
• General Name, Symbol, Number Cadmium, Cd, 48 Chemical series Transition metals Group, Period, Block 12, 5, d Density, Hardness 8650 kg/m3, 2 Appearance Silvery gray metallic Atomic properties Atomic weight 112.411 amu Atomic radius (calc.) 155 (161) pm Covalent radius 148 pm van der Waals radius 158 pm... Cadmium
• General Name, Symbol, Number silver, Ag, 47 Chemical series Transition metals Group, Period, Block 11, 5 , d Density, Hardness 10490 kg/m3, 2.5 Appearance Lustrous white metal Atomic properties Atomic weight 107.8683 amu Atomic radius (calc.) 160 (165) pm Covalent radius 153 pm van der Waals radius 172... Silver
• This article is about the element nickel. See also nickel (U.S. coin) and nickel (Canadian coin). General Name, Symbol, Number nickel, Ni, 28 Chemical series transition metals Group, Period, Block 10 , 4 , d Density, Hardness 8908 kg/m³, 4.0 Appearance lustrous, metallic Atomic properties Atomic weight 58.6934... Nickel
• Modern, high capacity NiMH batteries A Nickel metal hydride (or NiMH) battery is a type of rechargeable battery similar to a nickel-cadmium (NiCad) battery but without the expensive and environmentally unfriendly metal cadmium. This is why they are sometimes called the most environmentally friendly battery type. NiMH batteries tend... Nickel metal hydride
• This article is about Lithium, the element. For the article on mood-stabilizing drugs, see Lithium salt. General Name, Symbol, Number Lithium, Li, 3 Series Alkali metal Group, Period, Block 1(IA), 2 , s Density, Hardness 535 kg/m3, 0.6 Appearance silvery white/grey Atomic properties Atomic weight 6... Lithium
• A Hydride is a chemical compound or form of a bond between hydrogen with a metal usually found in group 1 of the Periodic table, usually with a more electropositive element or group. Originally, the term hydride was reserved strictly for compounds containing hydride ions, but the definition has been... Hydride
• General Name, Symbol, Number cobalt, Co, 27 Chemical series transition metals Group, Period, Block 9 , 4, d Density, Hardness 8.9 Mg/m3, 5.0 Appearance metallic with grey tinge Atomic properties Atomic weight 58.933200 amu Atomic radius (calc.) 135 (152) pm Covalent radius 126 pm van der Waals... Cobalt
• General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7 , 4 , d Density, Hardness 7470 kg/m3, 6.0 Appearance silvery metallic Atomic properties Atomic weight 54.938049 amu Atomic radius (calc.) 140 (161) pm Covalent radius 139 pm van der Waals radius n/a... Manganese
• Nitroglycerin (also nitroglycerine, trinitroglycerin, or glyceryl trinitrate) is a chemical compound, a heavy, colorless, poisonous, oily, explosive liquid obtained by nitrating glycerol. It is used in the manufacture of explosives, specifically dynamite, and as such is employed in the construction and demolition industries. It is also used medically as a... Nitroglycerin
• General Name, Symbol, Number Rubidium, Rb, 37 Series Alkali metals Group, Period, Block 1(IA), 5 , s Density, Hardness 1532 kg/m3, 0.3 Appearance silvery white Atomic properties Atomic weight 85.4678 amu Atomic radius (calc.) 235 (265) pm Covalent radius 211 pm van der Waals radius 2.44... Rubidium

Related inventions

• The Baghdad Battery is the common name for a number of artifacts apparently discovered in the village of Khuyut Rabboua (near Baghdad, Iraq) in 1936. These artifacts came to wider attention in 1938, when Wilhelm K nig, the German director of the National Museum of Iraq, found the objects... Baghdad Battery
• The Voltaic Pile was invented by Alessandro Volta in 1800. Volta demonstrated that when metals and chemicals come into contact with each other they can produce an electrical current. In his research, Volta placed together several pairs of alternating copper (or silver) and zinc discs separated by cloth and soaked... Voltaic pile
• This is a list of inventions, listed in chronological order. Significant inventions not assigned pre homo sapiens technology: language (the actual set of words and grammatical structure rather than the evolution of the biological ability for language) with homo sapiens: use of pigments (cave paintings/ ceremonial body paint/ painting of... Timeline of invention
• This is a list of inventors. See also: list of scientists, List of inventions named after people, timeline of invention, inventor, and Category:Inventors. Alphabetical list Contents: Top - A B C D E F G H I J K L M N O P Q R S T U V... List of inventors
• SBD (Smart Battery Data) is a method to monitor a rechargeable battery pack, initiated by Duracell and Intel. An special IC in the battery pack monitors the battery and reports information to the SMBus. This information might include: type, model number, manufacturer, characteristics, discharge rate, predicted remaining capacity, almost-discharged... Smart Battery Data battery warns device when it is going flat.

Other

• A gas-electric hybrid engine is a combination of a gasoline/petrol or diesel internal combustion engine with an electric motor to power a vehicle. Various designs exist for how the motor and engine interact with the drive train. Because the engine recharges the battery smaller batteries are required than... Gas-electric hybrid engine
• A hybrid car or hybrid electric vehicle is a vehicle which relies not only on batteries but also on an internal combustion engine which drives a generator to provide the electricity and may also drive the wheels directly. Prior to its modern usage to mean hybrid propulsion, the word hybrid... Hybrid car
• Regenerative braking is any technology which allows a vehicle to recapture and store part of the kinetic energy that would ordinarily be lost when braking. A simpler technology that can only convert the energy to heat but which uses similar principles is known as dynamic braking. Both are most commonly... Regenerative braking
• This article is about waste matter. For the computer program, see WASTE. Waste inside a Trash can Waste is unwanted or undesired material left over after the completion of a process. Waste can exist in any phase of matter (IE. solid, liquid, or gas). When released in the latter two... Waste
• CMOS battery

External links

• Electrochemistry Encyclopedia NONRECHARGEABLE BATTERIES (http://electrochem.cwru.edu/ed/encycl/art-b02-batt-nonr.htm)
• Battery Glossary & Terminology (http://www.windsun.com/batteries/battery_Glos.htm)
• Jet-Powered Computers, a look at future battery technologies by Fred Hapgood (http://hotwired.wired.com/wired_online/4.10/batteries/index.html)
• The Microturbine, battery technology as "the Next Big Thing" by Fred Hapgood (http://fhapgood.fastmail.fm/microturbine.htm)
• Exide Technologies, a typical manufacturer of batteries for industrial and other applications (http://www.exide.com/)