A high performance lithium-ion-sulfur battery with a free-standing carbon matrix supported Li-rich alloy anode.

ABSTRACT: Although the lithium-sulfur battery exhibits high capacity and energy density, the cycling performance is severely retarded by dendrite formation and side-reactions of the lithium metal anode and the shuttle effect of polysulfides. Therefore, exploring lithium rich-alloy (or compound) anodes and suppressing the shuttling of polysulfides have become practical technical challenges for the commercialization of lithium-sulfur batteries. Here, a lithium ion sulfur full battery system combining a lithium-rich Li-Si alloy anode and sulfurized polyacrylonitrile (S@pPAN) cathode has been proposed. The free-standing CNF matrix supported Li-Si alloy anode is prepared by a simple and effective method, which is practical for scale-up production. The obtained Li-Si alloy anode demonstrates high cycling

SUBMITTER: Zhang T 

PROVIDER: S-EPMC6296295 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature