The Quest for Polysulfides in Lithium-Sulfur Battery Electrolytes: An Operando Confocal Raman Spectroscopy Study
Julien Hannauer1, Johan Scheers2, Julien Fullenwarth1
1Institut Charles Gerhardt Montpellier UMR CNRS 5253, Université de Montpellier, 34095 Montpellier cedex 5 (France).
Abstract:
Confocal Raman spectra of a lithium-sulfur battery electrolyte are recorded operando in a depth-of-discharge resolved manner for an electrochemical cell with a realistic electrolyte/sulfur loading ratio. The evolution of various possible polysulfides is unambiguously identified by combining Raman spectroscopy data with DFT simulations.


