A LiAlO₂/nitrogen-doped hollow carbon spheres (NdHCSs) modified separator for advanced lithium-sulfur batteries.

ABSTRACT: Lithium-sulfur (Li-S) batteries have gained significant attention due to their ultrahigh theoretical specific capacity and energy density. However, their practical commercialization is still facing many intractable problems, of which the most difficult is the shuttle effect of dissolved polysulfides. To restrict the shuttle of polysulfides, herein, a novel double-layer lithium aluminate/nitrogen-doped hollow carbon sphere (LiAlO₂/NdHCSs)-modified separator was designed. The upper NdHCSs layer on the separator works as the first barrier to physically and chemically adsorb polysulfides, whereas the bottom LiAlO₂ layer acts as the second barrier to physically block the polysulfides without restricting the Li⁺ transport due to the high ionic conductivity of LiA

SUBMITTER: Li F 

PROVIDER: S-EPMC9077093 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature