%0 Journal Article
%A Göldner, Valentin
%A Quach, Linda
%A Adhitama, Egy
%A Behrens, Arne
%A Junk, Luisa
%A Winter, Martin
%A Placke, Tobias
%A Glorius, Frank
%A Karst, Uwe
%T Laser desorption/ionization-mass spectrometry for the analysis of interphases in lithium ion batteries
%J iScience
%V 26
%N 9
%@ 2589-0042
%C St. Louis
%I Elsevier
%M FZJ-2024-02553
%P 107517 -
%D 2023
%X Laser desorption/ionization-mass spectrometry (LDI-MS) is introduced as a complementary technique for the analysis of interphases formed at electrode|electrolyte interfaces in lithium ion batteries (LIBs). An understanding of these interphases is crucial for designing interphase-forming electrolyte formulations and increasing battery lifetime. Especially organic species are analyzed more effectively using LDI-MS than with established methodologies. The combination with trapped ion mobility spectrometry and tandem mass spectrometry yields additional structural information of interphase components. Furthermore, LDI-MS imaging reveals the lateral distribution of compounds on the electrode surface. Using the introduced methods, a deeper understanding of the mechanism of action of the established solid electrolyte interphase-forming electrolyte additive 3,4-dimethyloxazolidine-2,5-dione (Ala-N-CA) for silicon/graphite anodes is obtained, and active electrochemical transformation products are unambiguously identified. In the future, LDI-MS will help to provide a deeper understanding of interfacial processes in LIBs by using it in a multimodal approach with other surface analysis methods to obtain complementary information.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 37636078
%U <Go to ISI:>//WOS:001147801100001
%R 10.1016/j.isci.2023.107517
%U https://juser.fz-juelich.de/record/1024903