Controlled Construction of Cobalt-Doped Carbon Nanofiber-Carbon Nanotubes as a Freestanding Interlayer for Advanced Lithium-Sulfur Batteries.

ABSTRACT: The major challenges for the realistic application of lithium-sulfur batteries (LSBs) lie in the great difficulties in breaking through the obstacles of the sluggish kinetics and polysulfides shuttle of the sulfur cathode at high sulfur loading for continuous high sulfur utilization during prolonged charge-discharge cycles. Herein, cobalt-doped carbon nanofibers containing carbon nanotubes (Co@CNF-CNT) were prepared via electrospinning and chemical vapor deposition (CVD) methods while using polyacrylonitrile (PAN) as the carbon source and cobalt nanoparticles as the catalyst. The obtained uniform thickness film with high mechanical strength can be cut and used directly as a functional freestanding interlayer for LSBs. The appearance of one-dimensional "dendritic" carbon nanotubes on the su

SUBMITTER: Liu J 

PROVIDER: S-EPMC10702321 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature