Multifunctional Sandwich-Structured Electrolyte for High-Performance Lithium-Sulfur Batteries.

ABSTRACT: Due to its high theoretical energy density (2600 Wh kg^-1), low cost, and environmental benignity, the lithium-sulfur (Li-S) battery is attracting strong interest among the various electrochemical energy storage systems. However, its practical application is seriously hampered by the so-called shuttle effect of the highly soluble polysulfides. Herein, a novel design of multifunctional sandwich-structured polymer electrolyte (polymer/cellulose nonwoven/nanocarbon) for high-performance Li-S batteries is demonstrated. It is verified that Li-S battery with this sandwich-structured polymer electrolyte delivers excellent cycling stability (only 0.039% capacity decay cycle^-1 on average exceeding 1500 cycles at 0.5 C) and rate capability (with a reversible capacity of 594 mA h

SUBMITTER: Qu H 

PROVIDER: S-EPMC5867043 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature