动力电池低温性能提升方案设计

Design of Low Temperature Performance Improvement of Power Battery

锂离子动力电池在低温条件下工作,电池的容量急剧下降,导致整车低温续驶里程不足、动力性能不足、无法充电等问题。本文介绍了一种提高动力电池低温性能的方案,并进行了相关测试验证。该方案解决了目前电动汽车电池在低温下存在的上述问题,提高了整车低温性能。

The lithium ion power battery works under low temperature conditions,and the capacity of the battery drops sharply,which leads to the problems such as insufficient driving range,insufficient dynamic performance and unrecharging of the vehicle. This paper introduces a scheme to improve the low temperature performance of power battery,and has carried out relevant test and verification. This solution solves the above problems existing in the low temperature of electric car batteries,and improves the low temperature performance of the whole vehicle.