Review of internal short-circuit mechanism and test methods in lithium-ion batteries
HUANG Lili
LU Languang
LIU Xiaobin
Abstract：The factors that cause battery thermal runaway are complex,and cannot be evaluated and tested by certain standards or parameters.They are mainly manifested as mechanical abuse,electrical abuse,and thermal abuse.Internal short circuit(ISC)is the common link before thermal runaway.In this review,aiming at the ISC in lithium-ion batteries,in which introduces the mechanism,common causes,types and hazards of internal short circuit during use:overcharge,lithium evolution and overheating,summarizes the detection technology and test standards for ISC,mechanism,and proposes improvement measures of ISC.Finally,the future research is prospected.
Keywords：internal short circuitoverchargelithium evolutionoverheatingdetection and prevention
Publication Date：2026-02-25
Online Publishing Date：2026-03-13(First online date of this platform, not the publication date of the document)
Pages：6( 96-101 )