Insights into the LiMn2O4 Cathode Stability in Aqueous Electrolytes
Juan Carlos Gonzalez-Rosillo,
Maxim Guc,
Maciej Oskar Liedke
et al.
Abstract:LiMn 2 O 4 (LMO) cathodes present large stability when cycled in aqueous electrolytes, contrasting with their behavior in conventional organic electrolytes in lithium-ion batteries (LIBs). To elucidate the mechanisms underlying this distinctive behavior, we employ unconventional characterization techniques, including variable energy positron annihilation lifetime spectroscopy (VEPALS), tip-enhanced Raman spectroscopy (TERS), and macro-Raman spectroscopy (with tens of μm-size laser spot). These still rather une… Show more
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