SoH is a measure of the current performance of a battery relative to its original factory state, usually expressed as a percentage. For example, a battery with an SoH of 80% indicates that its maximum capacity has degraded to 80% of the original capacity.
In the battery industry, SoH is a key parameter for evaluating battery life and degradation, widely used in the operation and maintenance, and life management of electric vehicles, grid energy storage, portable devices, and other fields. By monitoring SoH, the system can predict battery degradation trends, optimize usage strategies, and timely warn of faults, thereby improving battery safety and economy.
