Isotropic Steric Hindrance of Acyclic Cations Enables Thermally Robust Anion-Derived Interphase for High-Temperature Lithium Metal Batteries at 100 °C.
High-temperature lithium metal batteries are critical for desert energy storage and deep-field exploration, yet the molecular-level understanding of how solvation structure and interphase evolution govern thermal safety remains elusive. Conventional carbonate electrolytes undergo reductive decomposition at the lithium...