Mechanistic insights into the thermodynamics and kinetics underlying the reductive decomposition of fluoroethylene and difluoroethylene carbonates for SEI formation in LIBs

coordination facilitates the defluorination process. These findings offer new insights into the decomposition of DFEC and confirm its ability to form LiF-rich SEI layers, highlighting DFEC as a promising electrolyte additive for stable and high-performance LIBs.