Application of in-situ non-destructive testing technology in safety performance analysis of lithium-ion battery
GU Zhengjian
XU Feng
SHAO Yujie
YANG Zhigao
Abstract：The reactions inside lithium-ion batteries are mostly chemical processes with complex and variable characteristics,the safety issues are difficult to detect and unable to accurately analyze the specific reasons in a short period of time.In-situ non-destructive characterization methods can minimize external interference,detect batteries in real environments and operating conditions,more clearly and accurately express the safety failure behavior of batteries,accurately analyze the safety failure characteristics and reaction mechanisms such as lithium deposition and thermal runaway,and further guide the improvement of electrode material preparation and battery system structural design.Starting from the failure analysis of lithium-ion batteries,combined with in-situ non-destructive testing technology,this article elaborates on the principles,application methods,and applicable failure modes of testing technology.In addition,by comparing and analyzing various detection technologies,the urgent problems that need to be solved in various technologies have been summarized,providing ideas for the development of in-situ non-destructive testing technology in the future;analyzing the possibility of applying various technologies to battery systems,providing theoretical support for the construction of battery safety prevention and early warning mechanism.
Keywords：non-destructive testingin-situ monitoringlithium-ion batteriessafety failure
Publication Date：2025-08-25
Online Publishing Date：2025-09-22(First online date of this platform, not the publication date of the document)
Pages：11( 301-310,335 )