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Electrode
The site, area or location at which electrochemical processes take place.
 
Electrolyte
The medium which provides the ion transport mechanism between the positive and negative electrodes of a cell.
 
End Voltage Cutoff
The prescribed voltage at which the discharge (or charge, if end-of-charge voltage) of a battery may be considered complete.
 
Energy
The output capability of a cell or battery, usually expressed in watt-hours.
 
Energy Density
The ratio of the energy available from a battery to its volume (Wh/L) or weight (Wh/kg).