An Ultrahigh Capacity Graphite/Li₂S Battery with Holey-Li₂S Nanoarchitectures.

ABSTRACT: The pairing of high-capacity Li₂S cathode (1166 mAh g^-1) and lithium-free anode (LFA) provides an unparalleled potential in developing safe and energy-dense next-generation secondary batteries. However, the low utilization of the Li₂S cathode and the lack of electrolytes compatible to both electrodes are impeding the development. Here, a novel graphite/Li₂S battery system, which features a self-assembled, holey-Li₂S nanoarchitecture and a stable solid electrolyte interface (SEI) on the graphite electrode, is reported. The holey structure on Li₂S is beneficial in decomposing Li₂S at the first charging process due to the enhanced Li ion extraction and transfer from the Li₂S to the electrolyte. In addition

SUBMITTER: Ye F 

PROVIDER: S-EPMC6051237 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature