Porous Carbon Architecture Assembled by Cross-Linked Carbon Leaves with Implanted Atomic Cobalt for High-Performance Li-S Batteries.

ABSTRACT: The practical application of lithium-sulfur batteries is severely hampered by the poor conductivity, polysulfide shuttle effect and sluggish reaction kinetics of sulfur cathodes. Herein, a hierarchically porous three-dimension (3D) carbon architecture assembled by cross-linked carbon leaves with implanted atomic Co-N₄ has been delicately developed as an advanced sulfur host through a SiO₂-mediated zeolitic imidazolate framework-L (ZIF-L) strategy. The unique 3D architectures not only provide a highly conductive network for fast electron transfer and buffer the volume change upon lithiation-delithiation process but also endow rich interface with full exposure of Co-N₄ active sites to boost the lithium polysulfides adsorption and conversion. Owing to the acce

SUBMITTER: Wang R 

PROVIDER: S-EPMC8245650 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature