01 Application Scenario
Power batteries are applied to new energy passenger vehicles, commercial vehicles, special vehicles, engineering machinery equipment, ships, etc. Power batteries focus more on power density and short-term high power output to meet the needs of electric vehicles for fast acceleration and long mileage. Compared to energy storage batteries, power batteries require higher energy density and power density. Furthermore, due to the limitations of car size, weight, and acceleration during startup, power batteries have higher performance requirements than ordinary energy storage batteries.
02 System composition
The power battery pack basically consists of the following 5 systems: battery module, battery management system, thermal management system, electrical system, and structural system. The cost of the power battery system consists of comprehensive costs such as battery cells, structural components, BMS, box, accessories, and manufacturing costs. Battery cells account for about 80% of the cost, while Pack (including structural components, BMS, box, accessories, manufacturing costs, etc.) costs account for about 20% of the entire battery pack cost.
