Probing Degradation in Lithium Ion Batteries with On-Chip Electrochemistry Mass Spectrometry.

ABSTRACT: The rapid uptake of lithium ion batteries (LIBs) for large scale electric vehicle and energy storage applications requires a deeper understanding of the degradation mechanisms. Capacity fade is due to the complex interplay between phase transitions, electrolyte decomposition and transition metal dissolution; many of these poorly understood parasitic reactions evolve gases as a side product. Here we present an on-chip electrochemistry mass spectrometry method that enables ultra-sensitive, fully quantified and time resolved detection of volatile species evolving from an operating LIB. The technique's electrochemical performance and mass transport is described by a finite element model and then experimentally used to demonstrate the variety of new insights into LIB performance. We show the ve

SUBMITTER: Thornton DB 

PROVIDER: S-EPMC10962541 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature