Sb nanosheet modified separator for Li-S batteries with excellent electrochemical performance.

ABSTRACT: An air-stable antimony (Sb) nanosheet modified separator (SbNs/separator) has been prepared by coating exfoliated Sb nanosheets (SbNs) successfully onto a pristine separator through a vacuum infiltration method. The as-prepared Li-S batteries using SbNs/separators exhibit much improved electrochemical performance compared to the ones using commercial separators. The coulombic efficiency (CE) of the Li-S battery using the SbNs/separator after the initial cycle is close to 100% at a current density of 0.1 A g^-1, and 660 mA h g^-1 capacity retained after 100 cycles. The rate capability of Li-S battery using SbNs/separator delivers a reversible capacity of 425 mA h g^-1 when the current density increases to 1 A g^-1. The improved electrochemical perform

SUBMITTER: Zeng L 

PROVIDER: S-EPMC8694926 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature