What is the difference between energy storage batteries and power batteries

　　1. Different application scenarios

　　At present, power batteries and energy storage batteries are the most promising areas for the future development of lithium batteries. Batteries used for electric vehicles and 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, practical applications have different requirements for their performance, service life, etc.

　　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 component unit of power battery products. A certain number of battery cells can form modules and be further assembled into a complete set of battery packs. The final form of application in new energy vehicles is the battery pack.

　　2. There are differences in system structure and cost composition

　　The complete electrochemical energy storage system mainly consists of battery packs, battery management systems (BMS), energy management systems (EMS), energy storage converters (PCS), and other electrical equipment. The battery pack is the most important component of an energy storage system; The battery management system is mainly responsible for monitoring, evaluating, protecting, and balancing batteries; The energy management system is responsible for data collection, network monitoring, and energy scheduling; The energy storage inverter can control the charging and discharging process of the energy storage battery pack, and perform AC/DC conversion.

　　In the cost composition of energy storage systems, batteries are the most important component, accounting for 60% of the cost; Next is energy storage inverters, accounting for 20%, EMS (Energy Management System) costs account for 10%, BMS (Battery Management System) costs account for 5%, and others account for 5%.

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