In electricity, a storage battery
that is, a group of rechargeable secondary cells. A familiar example is the leadacid car battery.
An ordinary 12-volt car battery consists of six leadacid cells which are continually recharged when the motor is running by the car's alternator or dynamo. It has electrodes of lead and lead oxide in an electrolyte of sulphuric acid. Another common type of accumulator is the nife or NiFe cell, which has electrodes of nickel and iron in a potassium hydroxide electrolyte.
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