Analysis of the composition of the power lithium-ion battery PACK system

As we all know, the battery PACK is the core energy source of new energy vehicles, which supplies the driving power for the whole vehicle. It mainly forms the main body of the battery PACK through the shell envelope. The composition of battery PACK includes batteries, modules, electrical systems, thermal management systems, shells and BMS. 1) Power lithium-ion battery module: If the battery PACK is compared to a human body, then the module is the heart, which is responsible for storing and releasing energy and supplying power for the car. 2) Structural system: The structural system is mainly composed of the battery PACK upper cover, tray, various metal brackets, end plates and bolts, which can be regarded as the bones of the battery PACK, supporting, resisting mechanical shock, mechanical vibration and environmental protection the use of. 3) Electrical system: The electrical system is mainly composed of high-voltage jumpers or high-voltage wiring harnesses, low-voltage wiring harnesses and relays. The high-voltage wiring harness can be regarded as the aorta blood vessel of the battery PACK, which continuously transmits the power of the heart of the power lithium battery system to various important components, and the low-voltage wiring harness can be regarded as the neural network of the battery PACK, which transmits test signals and control signals in real time. 4) Thermal management system: There are four types of thermal management systems: air-cooled, water-cooled, liquid-cooled, and phase change materials. Taking the water cooling system as an example, the thermal management system is mainly composed of a cooling plate, a cooling water pipe, an insulation pad and a thermal pad. The thermal management system is equivalent to installing an air conditioner for the battery PACK. The process of battery charging and discharging is actually the process of chemical reaction. The chemical reaction will release a lot of heat. The heat must be taken away to keep the battery within a reasonable operating temperature range to improve the battery's life and reliability. 5) BMS: BMS battery management system can be regarded as the brain of the battery. It is mainly composed of CMU and BMU. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: 80% charge in 9 minutes? New materials enable fast charging of lithium batteries?