Current pulse exploration to SOC of lithium iron phosphate Li-ion battery

The response extent of lithium iron phosphate(LiFePO4) Li-ion battery to the charge-discharge current under different state of charge(SOC) was studied,some groups of current with the most intense response were determined.The pulse data of batteries in operation of practical loading at this current were compared with the data in battery management system,to correct calculated SOC at present as a auxiliary method,then to equilibrate the batteries with proper strategy.The test proved that the capacity of the batteries improved more than 10%.