An XPS Study of Electrolytes for Li-Ion Batteries in Full Cell LNMO vs Si/Graphite
Raheleh Azmi,
Fredrik Lindgren,
Killian Stokes-Rodriguez
et al.
Abstract:Two different types of electrolytes (co-solvent and multi-salt) are tested for use in high voltage LiNi 0.5 Mn 1.5 O 4 ||Si/graphite full cells and compared against a carbonatebased standard LiPF 6 containing electrolyte (baseline). Ex situ postmortem XPS analysis on both anodes and cathodes over the life span of the cells reveals a continuously growing SEI and CEI for the baseline electrolyte. The cells cycled in the co-solvent electrolyte exhibited a relatively thick and long-term stable CEI (on LNMO), while… Show more
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