Skip to content
EN · km
Units
My Garage
Automotive glossary

Battery Cell

A battery cell is the smallest electrochemical unit of a battery and stores energy between its electrodes.

On this page

What is Battery Cell?

Electric car batteries contain hundreds or thousands of cells connected in series and parallel. Common formats are cylindrical, prismatic and pouch cells. Each lithium-ion cell has a nominal voltage of around 3.2 to 3.7 volts depending on chemistry.

How it works

Lithium ions move between anode and cathode through the electrolyte during charging and discharging.

Why it matters for your car

A single weak cell can limit the usable capacity of a whole string. Damaged cells can overheat and must be handled by specialists.

Other terms