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battery cell

A battery cell is a single electricity-generating unit that stores chemical energy and converts it into electrical energy. Several battery cells connected together form a battery. The battery voltage is the sum of the battery cell voltages.

Structure of a battery cell

Structure of a battery cell

A battery cell has two electrodes, the cathode and the anode, and an electrolyte, which is a chemical substance that reacts with the electrodes to produce electrical current. Such a battery cell is also called a galvanic element. If a battery cell cannot be charged, it is a primary cell, if it can be recharged after discharge, it is a secondary cell, an accumulator.

The nominal voltage of a battery cell depends on the electrode material and results from the electrochemical voltage series. Depending on the material, the voltage values range between +2.9 V and -3.0 V.

Englisch: battery cell
Updated at: 15.11.2021
#Words: 138
Links: battery, unit (U), voltage, electrolyte, current
Translations: DE

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