What are the requirements for designing lithium battery packs?

Some requirements for the design of lithium battery packs: (1) Vehicle installation conditions The appearance size of the lithium iron phosphate battery pack should meet the size requirements of the vehicle, and the necessary mechanical connection interface should be provided between the lithium battery pack and the vehicle. And electrical connection interface. The installation position of the battery box should avoid moving parts on the chassis of the vehicle, and should be as close as possible, while taking into account the convenience of battery maintenance. (2) Airtightness/IP rating requirements Lithium iron phosphate battery packs must have a certain degree of waterproof and dustproof capabilities. Airtightness/IP rating requirements also vary with the installation position of the battery pack on the vehicle. The sealed medium can be the structure of the lithium battery pack itself or the structure of the whole vehicle. (3) Thermal management requires heat to occur during battery operation, which must be released in time to prevent thermal runaway caused by excessive battery temperature. At the same time, it is necessary to ensure that the temperature uniformity and temperature gradient difference within the lithium battery pack meet a certain range of requirements. (4) Anti-collision and shock absorption require that there will be bumps during the driving of the vehicle, and there may also be impacts, collisions or impacts. The lithium battery must be able to protect against these conditions. In the event of a vehicle collision, the battery box must meet the following requirements: a. The lithium battery and its components must not penetrate the passenger compartment of the vehicle, and the battery box should not move; b. The battery module or single battery inside the lithium battery box , And other parts can not fall off or throw out from the box; c. In the event of a collision, the battery system can cut off the high-voltage circuit; Statement: Some pictures and content of the articles published on this site are from the Internet. : What are the safety hazards of lithium iron batteries?