Tuning of dynamic solvation structures via click chemistry for PEO-based solid polymer electrolytes.

ABSTRACT: The Li⁺-transport mechanisms in both solid polymer electrolytes (SPEs) and liquid electrolytes (LEs) are fundamentally governed by solvation dynamics, requiring an optimal balance between continuous coordination and moderate binding strength. Poly(ethylene oxide) (PEO) is a classic SPE matrix that leverages its -CH₂-CH₂-O- (EO) segments to provide continuous oxygen coordination for Li⁺ transport via amorphous regions. While continuous EO segments facilitate the intra-chain Li⁺-transport, their strong multidentate solvation of Li⁺ through a chelate effect - each Li⁺ chelates with 4-6 ethylene oxide (EO) units - significantly hinders the inter-chain Li⁺ mobility. This effect creates rigid solvation cages

SUBMITTER: Li R 

PROVIDER: S-EPMC12491566 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature