Moreover, the efficiency and the charge in the charging and discharging processes can be easily measured in the lab. This means that such a battery’s electrochemical behavior is stable with each charging and discharging process. Ī good battery shows a high cyclic stability. The processes can be performed for hundreds or even thousands of times so that the lifetime of these cells can be several years. Secondary cells are reversible, and this type is chargeable and dischargeable. Primary cells are not rechargeable, and the chemical reaction is irreversible. The existing types of battery systems vary according to the nature of the chemical reaction and the design of the battery. At least two redox couples undergo a chemical reaction during this operation. Electrochemical power sources convert chemical energy to electrical energy.
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