The lithium ion battery (LIB) is the key component for electric vehicles (EV) and many other electronic devices. The LIB quality directly affects the performance of  EV and other devices. Much research has been done in order to improve the performance and increase the efficiency of LIB. 

In this study, comprehensive analysis of LIB anode degradation products was conducted using Ion Chromatography (IC) coupled with High Resolution Mass Spectrometry (HRMS). 

Ion chromatography coupled with a Q Exactive mass spectrometer provides a powerful platform for li-ion battery anode impurity and degradant analysis. Phosphate degradation products in three aged lithium ion batteries were identified.