Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective

Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective

Abstract Metal‐sulfur batteries have received intensive research attention owing to their potential to achieve higher energy density and lower cost than conventional Li‐ion batteries. However, metal‐sulfur batteries suffer from a fundamental challenge, the shuttle effect, the crossover of soluble re...

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Main Authors: Qingli Zou, Yi‐Chun Lu
Format: Article
Language:English
Published: Wiley 2021-08-01
Series:EcoMat
Subjects:
electrolyte
metal sulfide
metal‐sulfur battery
polysulfide
Online Access:https://doi.org/10.1002/eom2.12115
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spelling doaj-be5aac65d96347f483da4b91a66707262021-08-20T05:32:18ZengWileyEcoMat2567-31732021-08-0134n/an/a10.1002/eom2.12115Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspectiveQingli Zou0Yi‐Chun Lu1Electrochemical Energy and Interfaces Laboratory, Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Hong Kong ChinaElectrochemical Energy and Interfaces Laboratory, Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Hong Kong ChinaAbstract Metal‐sulfur batteries have received intensive research attention owing to their potential to achieve higher energy density and lower cost than conventional Li‐ion batteries. However, metal‐sulfur batteries suffer from a fundamental challenge, the shuttle effect, the crossover of soluble reaction intermediates polysulfide leading to low efficiency and poor cycle life. Electrolyte design becomes the center of the sulfur redox chemistry since it dictates the properties of the soluble polysulfide intermediates in metal‐sulfur batteries. Here, we discuss the influence of electrolytes on sulfur reactions and cell performance, focusing on the polysulfide chemistry including polysulfide solubility and metal sulfide deposition. Based on the extensive analysis of literature, we highlight the design requirement of electrolytes to enable optimized sulfur reaction kinetic and realize high‐performance metal‐sulfur batteries.https://doi.org/10.1002/eom2.12115electrolytemetal sulfidemetal‐sulfur batterypolysulfide
collection DOAJ
language English
format Article
sources DOAJ
author Qingli Zou
Yi‐Chun Lu
spellingShingle Qingli Zou
Yi‐Chun Lu
Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective
EcoMat
electrolyte
metal sulfide
metal‐sulfur battery
polysulfide
author_facet Qingli Zou
Yi‐Chun Lu
author_sort Qingli Zou
title Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective
title_short Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective
title_full Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective
title_fullStr Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective
title_full_unstemmed Liquid electrolyte design for metal‐sulfur batteries: Mechanistic understanding and perspective
title_sort liquid electrolyte design for metal‐sulfur batteries: mechanistic understanding and perspective
publisher Wiley
series EcoMat
issn 2567-3173
publishDate 2021-08-01
description Abstract Metal‐sulfur batteries have received intensive research attention owing to their potential to achieve higher energy density and lower cost than conventional Li‐ion batteries. However, metal‐sulfur batteries suffer from a fundamental challenge, the shuttle effect, the crossover of soluble reaction intermediates polysulfide leading to low efficiency and poor cycle life. Electrolyte design becomes the center of the sulfur redox chemistry since it dictates the properties of the soluble polysulfide intermediates in metal‐sulfur batteries. Here, we discuss the influence of electrolytes on sulfur reactions and cell performance, focusing on the polysulfide chemistry including polysulfide solubility and metal sulfide deposition. Based on the extensive analysis of literature, we highlight the design requirement of electrolytes to enable optimized sulfur reaction kinetic and realize high‐performance metal‐sulfur batteries.
topic electrolyte
metal sulfide
metal‐sulfur battery
polysulfide
url https://doi.org/10.1002/eom2.12115
work_keys_str_mv AT qinglizou liquidelectrolytedesignformetalsulfurbatteriesmechanisticunderstandingandperspective
AT yichunlu liquidelectrolytedesignformetalsulfurbatteriesmechanisticunderstandingandperspective
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