Sentences with phrase «original electrode materials»
In nickel - cadmium (NiCad) batteries, for example, the Cd (OH) 2 and Ni (OH) 2 that are formed during cell discharge are readily converted back to the original electrode materials (Cd and NiOOH), when the cell is recharged.
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«An added requirement for a well - behaved (that is, long - lived) rechargeable battery is that not only must the electrochemical oxidation - reduction reactions be reversible, they must also return the electrode materials to their original physical state.