- The basic electrochemical unit used to generate or store electrical energy. Two or more cells interconnected in an appropriate
series/parallel arrangement is a battery. Under common usage, "battery" is often applied to single cells.
The quantity of electricity measured in ampere-hours (Ah) that can be delivered by a cell/battery under specified conditions.
The electrode in a cell/battery where oxidation takes place. During discharge, the negative electrode of the cell/battery
is the anode. During charge, the positive electrode is the anode.
Two or more cells interconnected in an appropriate series/parallel arrangement to provide required operating voltage and
current levels. Under common usage, "battery" is often applied to single cells.
The total number of ampere-hours that can be withdrawn from a fully charged cell/battery under specified discharge conditions.
The electrode in a cell/battery where reduction takes place. During discharge, the positive electrode of the cell/battery
is the cathode. During charge in a rechargeable battery, the negative electrode is the cathode.
Discharge or charge current, in amperes, expressed in multiples of the rated capacity. For example, C/10 discharge
current for a cell rated at 1.5 Ah is: 1.5 Ah/10, or 150 mA.
The number of cycles under specified conditions that are available from a rechargeable battery before it fails to meet
specified performance criteria.
The area where the electrochemical processes take place.
The medium that provides the ION transport mechanism between the positive and negative electrodes of a cell/battery.
The output capability of a cell/battery, usually expressed in watt-hours. Mainly used for rechargeable batteries.
The ratio of the energy available from a cell/battery to its volume (Wh/L) or weight (Wh/kg). Mainly used for
The amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the
given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure.
A phenomenon in which a cell/battery operated in successive cycles to the same, but less than full, depth of discharge
temporarily loses the rest of its capacity.
The interconnection of cells/batteries where all the like terminals are connected together. This results in increased capacity.
Protection Circuit Module
A non-rechargeable battery.
The PTC device protects the cell/battery from external short circuits while allowing the cell/battery to continue functioning after a short circuit is removed.
A rechargeable battery.
The loss of capacity of a cell/battery during storage due to internal chemical action.
The time an inactive cell/battery can be stored before it becomes unusable, usually considered as having only 80% of
its initial capacity.
The interconnection of cells/batteries where the positive terminal of the first is connected to the negative terminal of the second, and so on. This results in increased voltage.
The unit of measurement of electric potential. Voltage is the difference in electrical energy between two points.