Manipulating Li₂ S Redox Kinetics and Lithium Dendrites by Core-Shell Catalysts under High Sulfur Loading and Lean-Electrolyte Conditions.

ABSTRACT: For practical lithium-sulfur batteries (LSBs), the high sulfur loading and lean-electrolyte are necessary conditions to achieve the high energy density. However, such extreme conditions will cause serious battery performance fading, due to the uncontrolled deposition of Li₂ S and lithium dendrite growth. Herein, the tiny Co nanoparticles embedded N-doped carbon@Co₉ S₈ core-shell material (CoNC@Co₉ S₈ NC) is designed to address these challenges. The Co₉ S₈ NC-shell effectively captures lithium polysulfides (LiPSs) and electrolyte, and suppresses the lithium dendrite growth. The CoNC-core not only improves electronic conductivity, but also promotes Li⁺ diffusion as well as accelerates Li₂ S dep

SUBMITTER: Zhen M 

PROVIDER: S-EPMC10190580 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature