In the complex and changeable actual operating conditions of EVs, EV batteries need to face charging conditions at different temperatures and different current rates. Therefore, it is necessary to analyze the charging performance of battery cells at different temperatures and different current rates. The temperature test is divided into three different temperature conditions: low temperature, norm...
The consistency of battery cells has a crucial impact on the performance of the power battery system. The more the number of battery cells in the power battery system, the more obvious the impact of the consistency of the battery cells on the performance, cycle life and safety performance of the battery system. The cell consistency refers to the consistency of incoming battery cells, that is, the ...
The basis of battery cell selection is a systematic and comprehensive test and evaluation of the cells. It mainly evaluates whether it meets the application requirements of lithium-ion battery systems from the aspects of cell consistency, temperature characteristics, rate characteristics, pulse power performance, cycle life performance and safety performance. There are many test items for battery ...