Neighboring alkenyl group participated ether-based electrolyte for wide-temperature lithium metal batteries.

ABSTRACT: The extensive dendrite formation and unstable interfacial chemical environment pose significant obstacles to operating lithium metal batteries under extreme conditions. Here, we develop an allyl ether electrolyte operated across a wide-temperature range. Leveraging the neighboring group participation effect of alkenyl groups, the designed electrolyte possesses a quasi-weak solvation structure with low desolvation energy. Moreover, this effect facilitates the anion decomposition to form a dual-layer solid electrolyte interface, suppressing dendrite formation and surface parasitic reactions. Therefore, the single-salt, single-solvent electrolyte enables reversible lithium plating/stripping with high Coulombic efficiencies from -40 °C to 60 °C. The assembled 50 μm lithium | |3.5 mAh cm-2 sulf

SUBMITTER: Tang J 

PROVIDER: S-EPMC12378987 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature