A New Type of Electrolyte System To Suppress Polysulfide Dissolution for Lithium-Sulfur Battery.

Published

Journal Article

Lithium-sulfur (Li-S) batteries have been explored extensively for high-capacity electric-power storage, but their practical application has been prevented by severe issues stemming from the use of a lithium anode and an organic-liquid electrolyte in which Li2Sx intermediates of the cell discharge reaction are soluble and shuttle to the anode. Both problems are addressed using bis(4-nitrophenyl) carbonate as an additive in the organic-liquid electrolyte. The soluble Li2Sx polysulfides react with the additive to create insoluble polysulfides with a lithium byproduct; this byproduct reacts with the Li-metal anode to create an anode passivation layer that is a good Li+ conductor, which allows for safe and rapid plating/stripping of lithium metal with a low impedance.

Full Text

Cited Authors

  • Yang, T; Qian, T; Liu, J; Xu, N; Li, Y; Grundish, N; Yan, C; Goodenough, JB

Published Date

  • August 2019

Published In

Volume / Issue

  • 13 / 8

Start / End Page

  • 9067 - 9073

PubMed ID

  • 31339690

Pubmed Central ID

  • 31339690

Electronic International Standard Serial Number (EISSN)

  • 1936-086X

International Standard Serial Number (ISSN)

  • 1936-0851

Digital Object Identifier (DOI)

  • 10.1021/acsnano.9b03304

Language

  • eng