Fast-Charging Phosphorus Anodes Enabled by Fluorinated Weakly Solvated Electrolytes for Stable and High-Rate Lithium Storage.

ABSTRACT: Phosphorus-based anodes hold promise for energy storage due to their high theoretical capacity and favorable lithiation potential. However, their practical application is hindered by sluggish reaction kinetics and irreversible capacity loss, primarily attributed to multiphase lithiation/delithiation reactions and the dissolution of lithium polyphosphide intermediates. Herein, a universal design principle of weakly solvated electrolytes (WSEs) tailored for phosphorus-based anodes is proposed. Combined with a high dielectric constant, and significant dipole moment, a fluorinated cosolvent is incorporated into a WSE to effectively suppress the dissolutions of lithium polyphosphides, enhance interfacial stability, and accelerate reaction kinetics. With this electrolyte, a phosphorus-based anod

SUBMITTER: Xie H 

PROVIDER: S-EPMC12288809 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature