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Wednesday, March 24, 2010

Lithium battery















Lithium batteries are disposable (primary) batteries that have lithium metal or lithium compounds as an anode. Depending on the design and chemical compounds used, lithium cells can produce voltages from 1.5 V to about 3.7 V, over twice the voltage of an ordinary zinc-carbon battery or alkaline cell battery[1] . Lithium batteries are widely used in products such as portable consumer electronic devices.





Disassembled CR2032 battery From left - negative cup from inner side with layer of lithium (I made few scratches and on air oxidizes in few seconds), separator(porous material), cathode (manganese dioxide), metal grid - current collector, metal casing (+)(damaged during opening the cell), on the bottom is plastic sealing ring

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