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Successive improvements in battery technology facilitated major electrical advances, from early scientific studies to the rise of telegraphs and telephones, eventually leading to portable computers, mobile phones, electric cars, and many other electrical devices. Students and engineers developed several commercially important types of battery.
Alessandro Giuseppe Antonio Anastasio Volta (UK: / ˈ v ɒ l t ə /, US: / ˈ v oʊ l t ə /; Italian: [alesˈsandro ˈvɔlta]; 18 February 1745 – 5 March 1827) was an Italian chemist and physicist who was a pioneer of electricity and power, [1] [2] [3] and is credited as the inventor of the electric battery and the discoverer of methane.
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections [1] for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. [2] The terminal marked negative is the source of electrons.
approximately 1893: The selenium phototube invention allows the conversion of brightness values into electrical signals. The principle is applied in wirephoto and television technology for a short time. Selenium is used in light meters for the next 50 years.
1990: The English term "lithium-ion battery", which was invented as a marketing tool to distinguish the new technology from ill-fated lithium metal batteries appeared for the first time in a publication. [48] It was used by Sony employees. [50]
An example of a galvanic cell consists of two different metals, each immersed in separate beakers containing their respective metal ions in solution that are connected by a salt bridge or separated by a porous membrane. [1] Volta was the inventor of the voltaic pile, the first electrical battery.
1947 – Invention of the First Transistor at Bell Telephone Laboratories, Inc. 1947 – Invention of Holography; 1948 – Birth of the Barcode; 1948 – The Discovery of the Principle of Self-Complementarity in Antennas and the Mushiake Relationship; 1948 – First Atomic Clock; 1948–1951 – Manchester University "Baby" Computer and its ...
A 1919 illustration of a Leclanché cell. The Leclanché cell is a battery invented and patented by the French scientist Georges Leclanché in 1866. [1] [2] [3] The battery contained a conducting solution (electrolyte) of ammonium chloride, a cathode (positive terminal) of carbon, a depolarizer of manganese dioxide (oxidizer), and an anode (negative terminal) of zinc (reductant).