Equivalent circuit model parameters of a high-power Li-ion battery: Thermal and state of charge effects

► Equivalent electric model parameters needed to develop a control algorithm for high-power lithium-ion batteries are determined as a function of temperature and state of charge (SOC) ► Models of combined impedances derived to give the user a plug and chug mechanism to determine the overall impedance given SOC and temperature for high-power Li-ion battery. ► Paper provides insight as to the critical role temperature and SOC play on specific impedances for Li-ion batteries.