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alkaline-manganese dioxide battery: cutaway view electrochemical cell: basic components
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alkaline-manganese dioxide battery: cutaway view
alkaline-manganese dioxide battery: cutaway view
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Category: Science & Tech
Key People:
Alessandro Volta
M. Stanley Whittingham
John B. Goodenough
Yoshino Akira
Shai Agassi
Related Topics:
energy conversion
cathode
anode
storage battery
primary cell
See all related content →

battery, in electricity and electrochemistry, any of a class of devices that convert chemical energy directly into electrical energy. Although the term battery, in strict usage, designates an assembly of two or more galvanic cells capable of such energy conversion, it is commonly applied to a single cell of this kind. Every battery (or cell) has a cathode, or positive plate, and an anode, or negative plate. These electrodes must be separated by and are often immersed in an electrolyte that permits the passage of ions between the electrodes. The electrode materials and the electrolyte are chosen and arranged so ...(100 of 4992 words)

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