Fluorination-mediated solvation remodeling of ethylene carbonate-free carbonate electrolytes affords stable 4.6 V-class lithium metal batteries

(NCM90) cathode, delivering a 95% average coulombic efficiency over 150 cycles in Li‖Cu cells, and 82.3% (25 °C) and 82.6% (50 °C) capacity retention after 100 cycles at 1C in LMBs, along with outstanding rate and wide-temperature-tolerance properties. More essentially, this contribution offers a rational design paradigm in electrolyte chemistry for high-performance EC-free electrolytes toward next-generation high-energy-density LMBs.