What is the temperature adaptation performance of automotive power lithium-ion batteries

1. The impact of extreme cold on the battery is mainly manifested by the current low charge-discharge rate and reduced capacity; the impact of extreme heat on the battery is mainly manifested in the reduction of lifespan, high temperature safety, and decrease in charge and discharge. 2. The impact of extremely cold batteries is relatively light. Generally, lithium batteries can be used below minus 20 degrees Celsius, and heat will be generated during the battery discharge process, but the increase in energy consumption and the reduction of power cannot be guarded. 3. The impact of extreme cold on pure electric vehicles is different from that of dual-mode hybrid vehicles. Since pure electric vehicles have no other power source, they have to rely on battery discharge and heating to reach a suitable temperature in extreme cold conditions. Then the energy consumption and battery life will have a great impact. 4. The impact of dual-mode hybrid power is relatively weak. Because the hybrid has an engine as a backup supply energy. 5. Extreme heat has a great influence on both pure electricity and hybrid, for example, the high-power discharge temperature of the battery itself will increase. Taking a general lithium battery as an example, the temperature of the battery can be raised to nearly 50 degrees with a 20C discharge. Such a high temperature not only affects the life of the battery, but more importantly, it is a safety hazard. In theory, the battery we need should have high energy density, high volume density, good safety, high temperature and low temperature resistance, long cycle life, non-toxic and harmless, high-power charge and discharge, and integrate all the advantages and low cost. But there is no such battery at present, so there is a need to choose between the advantages and disadvantages of different types of batteries. In addition, different electric vehicles have different requirements for batteries. Therefore, only a long-term judgment of electric vehicles can help us correctly determine the choice of battery route. 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: How to use lithium batteries with different cathode materials