Structure Determination of Aging Products in Lithium-Ion Battery Electrolytes with Gas Chromatography using Chemical Ionization Mass Spectrometry

摘要

Lithium-ion batteries (LIBs) are the fundament of modern consumer electronics and portable devices. Furthermore, these energy storage systems are the most promising technology for electric and hybrid electric vehicles.[1,2] Unfortunately, the lifetime of LIBs is limited due to electrochemical, thermal and calendric aging. Research about aging phenomena has been done in the last years but mechanisms are yet not fully understood.[3-6] We focus our investigations on the electrolyte aging.