EV Dictionary: Battery Components
Browse Battery Components related electric vehicle terms and definitions.
6 terms
Anode
The battery electrode that releases electrons during discharge and receives lithium ions during charging.
Cathode
The battery electrode where reduction occurs, commonly named as the positive electrode defined during discharge.
Current Collector
The conductive substrate that carries electrons between an electrode coating and the cell terminals.
Electrolyte
The ion-conducting medium inside a battery, distinct from the electron path through the external circuit.
Separator
The porous insulating layer that keeps battery electrodes apart while allowing ions to pass.
Solid Electrolyte Interphase (SEI)
A passivating reaction-product layer that forms where an electrode meets the electrolyte.