Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications

Abstract The chief culprit impeding the commercialization of lithium–sulfur (Li–S) batteries is the parasitic shuttle effect and restricted redox kinetics of lithium polysulfides (LiPSs). To circumvent these key stumbling blocks, incorporating electrocatalysts with rational electronic structure modu...

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Main Authors: Hongtai Li, Yanguang Li, Liang Zhang, Zhongwei Chen, Xueliang Sun
Format: Article
Language:English
Published: Wiley 2023-05-01
Series:Interdisciplinary Materials
Subjects:
Online Access:https://doi.org/10.1002/idm2.12087
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author Hongtai Li
Yanguang Li
Liang Zhang
Zhongwei Chen
Xueliang Sun
author_facet Hongtai Li
Yanguang Li
Liang Zhang
Zhongwei Chen
Xueliang Sun
author_sort Hongtai Li
collection DOAJ
description Abstract The chief culprit impeding the commercialization of lithium–sulfur (Li–S) batteries is the parasitic shuttle effect and restricted redox kinetics of lithium polysulfides (LiPSs). To circumvent these key stumbling blocks, incorporating electrocatalysts with rational electronic structure modulation into sulfur cathode plays a decisive role in vitalizing the higher electrocatalytic activity to promote sulfur utilization efficiency. Breaking the stereotype of contemporary electrocatalyst design kept on pretreatment, field‐assisted electrocatalysts offer strategic advantages in dynamically controllable electrochemical reactions that might be thorny to regulate in conventional electrochemical processes. However, the highly interdisciplinary field‐assisted electrochemistry puzzles researchers for a fundamental understanding of the ambiguous correlations among electronic structure, surface adsorption properties, and catalytic performance. In this review, the mechanisms, functionality explorations, and advantages of field‐assisted electrocatalysts including electric, magnetic, light, thermal, and strain fields in Li–S batteries have been summarized. By demonstrating pioneering work for customized geometric configuration, energy band engineering, and optimal microenvironment arrangement in response to decreased activation energy and enriched reactant concentration for accelerated sulfur redox kinetics, cutting‐edge insights into the holistic periscope of charge‐spin‐orbital‐lattice interplay between LiPSs and electrocatalysts are scrutinized, which aspires to advance the comprehensive understanding of the complex electrochemistry of Li–S batteries. Finally, future perspectives are provided to inspire innovations capable of defeating existing restrictions.
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spelling doaj.art-21371ceccd2c4dbd8a7a6f225f36b3852023-05-30T10:26:18ZengWileyInterdisciplinary Materials2767-441X2023-05-012339041510.1002/idm2.12087Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applicationsHongtai Li0Yanguang Li1Liang Zhang2Zhongwei Chen3Xueliang Sun4Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou ChinaInstitute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou ChinaInstitute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou ChinaDepartment of Chemical Engineering, Waterloo Institute for Nanotechnology University of Waterloo Waterloo Ontario CanadaDepartment of Mechanical and Materials Engineering University of Western Ontario London Ontario CanadaAbstract The chief culprit impeding the commercialization of lithium–sulfur (Li–S) batteries is the parasitic shuttle effect and restricted redox kinetics of lithium polysulfides (LiPSs). To circumvent these key stumbling blocks, incorporating electrocatalysts with rational electronic structure modulation into sulfur cathode plays a decisive role in vitalizing the higher electrocatalytic activity to promote sulfur utilization efficiency. Breaking the stereotype of contemporary electrocatalyst design kept on pretreatment, field‐assisted electrocatalysts offer strategic advantages in dynamically controllable electrochemical reactions that might be thorny to regulate in conventional electrochemical processes. However, the highly interdisciplinary field‐assisted electrochemistry puzzles researchers for a fundamental understanding of the ambiguous correlations among electronic structure, surface adsorption properties, and catalytic performance. In this review, the mechanisms, functionality explorations, and advantages of field‐assisted electrocatalysts including electric, magnetic, light, thermal, and strain fields in Li–S batteries have been summarized. By demonstrating pioneering work for customized geometric configuration, energy band engineering, and optimal microenvironment arrangement in response to decreased activation energy and enriched reactant concentration for accelerated sulfur redox kinetics, cutting‐edge insights into the holistic periscope of charge‐spin‐orbital‐lattice interplay between LiPSs and electrocatalysts are scrutinized, which aspires to advance the comprehensive understanding of the complex electrochemistry of Li–S batteries. Finally, future perspectives are provided to inspire innovations capable of defeating existing restrictions.https://doi.org/10.1002/idm2.12087electrocatalysiselectronic propertiesexternal fieldsLi–S batteriesredox kinetics
spellingShingle Hongtai Li
Yanguang Li
Liang Zhang
Zhongwei Chen
Xueliang Sun
Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications
Interdisciplinary Materials
electrocatalysis
electronic properties
external fields
Li–S batteries
redox kinetics
title Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications
title_full Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications
title_fullStr Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications
title_full_unstemmed Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications
title_short Field‐assisted electrocatalysts spark sulfur redox kinetics: From fundamentals to applications
title_sort field assisted electrocatalysts spark sulfur redox kinetics from fundamentals to applications
topic electrocatalysis
electronic properties
external fields
Li–S batteries
redox kinetics
url https://doi.org/10.1002/idm2.12087
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AT yanguangli fieldassistedelectrocatalystssparksulfurredoxkineticsfromfundamentalstoapplications
AT liangzhang fieldassistedelectrocatalystssparksulfurredoxkineticsfromfundamentalstoapplications
AT zhongweichen fieldassistedelectrocatalystssparksulfurredoxkineticsfromfundamentalstoapplications
AT xueliangsun fieldassistedelectrocatalystssparksulfurredoxkineticsfromfundamentalstoapplications