Decreasing salt-to-solvent molar ratio without sacrificing electrochemical performance remains a challenge in high-performance lithium metal batteries. Here, authors show that compatibility of fluorobenzene-diluted 1,2-dimethoxyethane-based electrolyte with Li metal is reduced in smaller salt-to-solvent molar ratios and design a fluorobenzene-diluted dimethyl acetal-based electrolyte with significantly enhanced stability towards Li metal under a reduced Li salt concentration.
- Hongji Pan
- Tiantian Wang
- Yiju Li
