Driving range is the main performance indicator of an EV, and this is mainly determined by the available capacity of the EV battery system. Lithium-ion batteries are highly sensitive to temperature and current rate. By analyzing the charge-discharge curve of the battery under different working conditions, and analyzing its charge-discharge capacity and energy and other parameters, the battery's su...

The constant-power discharge performance of lithium-ion battery cells is another feature to focus on. Because this determines the ability of the battery system to stabilize the output power, which in turn affects the vehicle performance of the EV. The following table is the main test steps for the constant power discharge test of battery cells at different temperatures and different powers. The ba...