%0 Journal Article
%A Peschel, Christoph
%A van Wickeren, Stefan
%A Bloch, Aleksandra
%A Lechtenfeld, Christian-Timo
%A Winter, Martin
%A Nowak, Sascha
%T Defining Aging Marker Molecules of 1,3‐Propane Sultone for Targeted Identification in Spent LiNi 0.6 Co 0.2 Mn 0.2 O 2 ||AG Cells
%J Energy technology
%V 11
%N 5
%@ 2194-4288
%C Weinheim [u.a.]
%I Wiley-VCH
%M FZJ-2024-02638
%P 2370054
%D 2023
%Z Unterstützt durch den BMBF Grant: “InnoRec”(03XP0246C).
%X Herein we report on an analytical approach for targeted identification of hazardous 1,3-propane sultone (PS) in spent lithium ion battery material. PS decomposition is investigated with chromatographic techniques coupled to high-resolution accurate mass spectrometry. Speciation of sulfur-containing decomposition products is performed and aging marker molecules are defined. The observed PS decomposition results in characteristic 1-propanesulfonate via electrochemical ring-opening. Based on this, 1-propanesulfonate is defined as an ionic marker molecule for electrochemical PS decomposition. Further, volatile methyl and ethyl esters of 1-propanesulfonate are identified. Their formation is observed mainly caused by elevated temperatures after preceding PS ring-opening during cell formation. Both, ionic and volatile decomposition markers can be applied for targeted identification of hazardous PS-containing lithium ion battery material, despite possible consumption of the initial additive molecule.
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.1002/ente.202370054
%U https://juser.fz-juelich.de/record/1025050