Low-concentration electrolyte demonstrates significant advantages in terms of low cost, low viscosity, and high wettability. However, its high solvent ratio usually induces a fragile organic-rich solid electrolyte interphase (SEI), which is not compatible with high-voltage lithium metal batteries (LMBs). Herein, a screening rule for diluents has been established based on the electrostatic potential, which guides the rational design of diluted low-concentration electrolyte (DLCE) with a high anion-to-solvent ratio. Specifically, the anti-solvating power of a diluent is positively correlated wit...
