There are significant differences between electric vehicle power batteries and energy storage batteries in many aspects. Power batteries are mainly used in electric vehicles and plug-in hybrid vehicles to provide long-term, continuous power support, and have the characteristics of high energy density, long life and high performance in a wide temperature range. Energy storage batteries are used to store energy and are suitable for short-term, intermittent use, such as power peak regulation and network energy reserves. Their energy density is relatively low, but their application scenarios are more extensive, including home energy storage, electric vehicle charging equipment, etc., and they play an important role in modern power systems. With the development of technologies such as new energy vehicles and smart grids, the demand for power batteries and energy storage batteries is gradually increasing, and each plays a unique role in different fields.