At present, power batteries and energy storage batteries are the areas with the greatest potential for future development of lithium batteries. Batteries for electric vehicles and batteries for energy storage devices are essentially energy storage batteries. At present, there is no difference in technical principles between energy storage batteries and power batteries, but due to different application scenarios, actual applications have different requirements for the performance and service life of the two.

Power and energy storage battery system products can be divided into battery cells, modules and battery packs according to different product forms. The battery cell is the core basic unit of the power battery product. A certain number of battery cells can be assembled into a module, and further assembled into a battery pack. The final form of application in new energy vehicles is a battery pack.