Realizing four-electron conversion chemistry for all-solid-state Li||I₂ batteries at room temperature.

ABSTRACT: Rechargeable Li||I₂ batteries based on liquid organic electrolytes suffer from pronounced polyiodides shuttling and safety concerns, which can be potentially tackled by the use of solid-state electrolytes. However, current all-solid-state Li||I₂ batteries only demonstrate limited capacity based on a two-electron I^-/I₂ polyiodides chemistry at elevated temperatures, preventing them from rivaling state-of-the-art lithium-ion batteries. Herein, we report a fast, stable and high-capacity four-electron solid-conversion I^-/I₂/I⁺ chemistry in all-solid-state Li||I₂ batteries at room temperature. Through the strategic use of a highly conductive, chlorine-rich solid electrolyte Li_4.2InCl_7.2

SUBMITTER: Cheng Z 

PROVIDER: S-EPMC11836363 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature