What is a power battery?

What is a power battery?
Power batteries are specifically designed to provide the power required for electric vehicles. They need to have high energy density and high power output to meet the requirements of electric vehicles for acceleration performance and driving range. The design focus of power batteries is to improve their charging speed, discharge speed, and cycle life. Meanwhile, safety is also an important aspect of power batteries to ensure reliable operation under various conditions.

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.