动力电池产气分析技术的研究与展望

动力电池在正常循环及滥用条件下均会产生气体。研究动力电池产气检测技术,对于探究动力电池内部反应机理,提升动力电池安全性有着重要意义。本文首先介绍了正常循环和滥用条件下动力电池产气的成分、机理以及影响因素,之后本文从产气量、产气分布、产气成分三个维度分别介绍了目前行业内常用的检测方法,剖析了这些检测方法的测试原理、适用范围及优缺点。最后,本文展望了动力电池产气技术的发展趋势。本文将为动力电池研发和测试人员提供参考。

Research and Prospect of Gas Production Analysis Technology for Power Battery

Power battery will produce gas under normal circulation and abuse conditions.The research on gas production detection technology of power battery is of great significance to explore the internal reaction mechanism of power battery and improve the safety of power battery.Firstly,this paper introduces the composition,mechanism and influencing factors of power battery gas production under normal cycle and abuse conditions.Then,this paper introduces the commonly used detection methods in the industry from the three dimensions of gas production,gas production distribution and gas production composition,and analyzes the test principle,application scope,advantages and disadvantages of these detection methods.Finally,the development trend of power battery gas production technology is prospected.This paper will provide reference for power battery R & D and testing personnel.