Enhanced performance of lithium-sulfur batteries based on single-sided chemical tailoring, and organosiloxane grafted PP separator.

ABSTRACT: Even after a decade of research and rapid development of lithium-sulfur (Li-S) batteries, the infamous shuttle effect of lithium polysulfide is still the major challenge hindering the commercialization of Li-S batteries. In order to further address this issue, a functionalized PP separator is obtained through selective single-sided chemical tailoring, and then organosiloxane fumigation grafting. During the charge-discharge process, the grafted functional groups can effectively block the transportation of the dissolved polysulfides through strong chemical anchoring, inhibit the shuttle effect and greatly enhance the cycle stability of the Li-S battery. Interestingly, the specially designed single-sided enlarged channel structure formed by chemical tailoring can well accommodate the depositi

SUBMITTER: Zhou H 

PROVIDER: S-EPMC9053766 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature