A flexible sulfur-graphene-polypropylene separator integrated electrode for advanced Li-S batteries.

Zhou, Guangmin; Li, Lu; Wang, Da-Wei; Shan, Xu-Yi; Pei, Songfeng; Li, Feng; Cheng, Hui-Ming · Adv Mater · 2015

basic_science · Level V

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Abstract

A flexible Li-S battery based on an integrated structure of sulfur and graphene on a separator is developed. The internal graphene current collector offers a continuous conductive pathway, a modified interface with sulfur, and a good barrier to and an effective reservoir for dissolved polysulfides, consequently improving the capacity and cyclic life of the Li-S battery.