Alkali Metalation Enables Natural Anthraquinone Derivatives as Sustainable Cathode Materials for Lithium-Ion Batteries.

ABSTRACT: Organic electrode materials (OEMs) derived from natural quinones can enable sustainable lithium-ion batteries (LIBs) if their dissolution-induced capacity fading in organic electrolytes and their conductivity issues are addressed. It is demonstrated that converting natural anthraquinones (AQs) into organic alkali-metalated salts effectively inhibits their dissolution in aprotic electrolytes. For this purpose, a solubility indicator (ΔMPI) is developed, which reliably guides the selection of compatible OEMs and electrolytes. The effect of alkali metalation (i.e., replacing ─OH with ─OM, M = Li, Na, K) on the physicochemical properties of AQs is revealed, and validate experimentally the suppressed dissolution and improved cyclic stability of metalated AQs. Finally, the issue of low conductiv

SUBMITTER: Zhu X 

PROVIDER: S-EPMC12667472 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature