Self-discharge rate

Battery discharge current expressed in discharge rate (It), where 1ItA equals 1.5 ampere-hours per hour.

State of charge (SOC) refers to the percentage of the actual capacity that can be released under manufacturer-specified discharge conditions in the current battery cell, module, battery pack, or system. Its value ranges from 0 to 1, where SOC=0 indicates the battery is completely discharged, and SOC=1 indicates the battery is fully charged.

The capacity released by the internal active material of a battery during discharge divided by the mass of the active material.Note: Specific capacity is typically expressed in milliampere-hours per gram (mAh/g). Sometimes, the calculation of specific capacity includes the mass of all non-active materials, such as conductive additives and binders.

The ratio of the power output of a battery to its volume. Also known as "volume power density."

The difference in electrode potential between when current is flowing and when no current is flowing.

The recorded curves depicting the variations of voltage, current, capacity, and other parameters over time during the charging or discharging process of a battery.