Uncoordinated chemistry enables highly conductive and stable electrolyte/filler interfaces for solid-state lithium-sulfur batteries.

ABSTRACT: Composite-polymer-electrolytes (CPEs) embedded with advanced filler materials offer great promise for fast and preferential Li⁺ conduction. The filler surface chemistry determines the interaction with electrolyte molecules and thus critically regulates the Li⁺ behaviors at the interfaces. Herein, we probe into the role of electrolyte/filler interfaces (EFI) in CPEs and promote Li⁺ conduction by introducing an unsaturated coordination Prussian blue analog (UCPBA) filler. Combining scanning transmission X-ray microscope stack imaging studies and first-principle calculations, fast Li⁺ conduction is revealed only achievable at a chemically stable EFI, which can be established by the unsaturated Co-O coordination in UCPBA to circumvent the side reacti

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC10104547 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature