A Review of Redox Electrolytes for Supercapacitors

A Review of Redox Electrolytes for Supercapacitors

Supercapacitors (SCs) have attracted widespread attention due to their short charging/discharging time, long cycle life, and good temperature characteristics. Electrolytes have been considered as a key factor affecting the performance of SCs. They largely determine the energy density based on their...

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Main Authors: Le Zhang, Shuhua Yang, Jie Chang, Degang Zhao, Jieqiang Wang, Chao Yang, Bingqiang Cao
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-06-01
Series:Frontiers in Chemistry
Subjects:
ionic conductivity
energy density
power density
redox electrolyte
supercapacitor
Online Access:https://www.frontiersin.org/article/10.3389/fchem.2020.00413/full
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spelling doaj-886a3f2edde54e0193d09ceb01d075902020-11-25T03:20:45ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462020-06-01810.3389/fchem.2020.00413539471A Review of Redox Electrolytes for SupercapacitorsLe Zhang0Shuhua Yang1Jie Chang2Degang Zhao3Jieqiang Wang4Chao Yang5Bingqiang Cao6Bingqiang Cao7Materials Center for Energy and Photoelectrochemical Conversion, School of Material Science and Engineering, University of Jinan, Jinan, ChinaMaterials Center for Energy and Photoelectrochemical Conversion, School of Material Science and Engineering, University of Jinan, Jinan, ChinaKey Laboratory of Micro-Nano Powder and Advanced Energy Material of Anhui Higher Education Institutes, Chizhou University, Chizhou, ChinaMaterials Center for Energy and Photoelectrochemical Conversion, School of Material Science and Engineering, University of Jinan, Jinan, ChinaMaterials Center for Energy and Photoelectrochemical Conversion, School of Material Science and Engineering, University of Jinan, Jinan, ChinaSchool of Physics and Physical Engineering, Qufu Normal University, Qufu, ChinaMaterials Center for Energy and Photoelectrochemical Conversion, School of Material Science and Engineering, University of Jinan, Jinan, ChinaSchool of Physics and Physical Engineering, Qufu Normal University, Qufu, ChinaSupercapacitors (SCs) have attracted widespread attention due to their short charging/discharging time, long cycle life, and good temperature characteristics. Electrolytes have been considered as a key factor affecting the performance of SCs. They largely determine the energy density based on their decomposition voltage and the power density from their ionic conductivity. In recent years, redox electrolytes obtained a growing interest due to an additional redox activity from electrolytes, which offers an increased charge storage capacity in SCs. This article summarizes the latest progress in the research of redox electrolytes, and focuses on their properties, mechanisms, and applications based on different solvent types available. It also proposes potential solutions for how to effectively increase the energy density of the SCs while maintaining their high power and long life.https://www.frontiersin.org/article/10.3389/fchem.2020.00413/fullionic conductivityenergy densitypower densityredox electrolytesupercapacitor
collection DOAJ
language English
format Article
sources DOAJ
author Le Zhang
Shuhua Yang
Jie Chang
Degang Zhao
Jieqiang Wang
Chao Yang
Bingqiang Cao
Bingqiang Cao
spellingShingle Le Zhang
Shuhua Yang
Jie Chang
Degang Zhao
Jieqiang Wang
Chao Yang
Bingqiang Cao
Bingqiang Cao
A Review of Redox Electrolytes for Supercapacitors
Frontiers in Chemistry
ionic conductivity
energy density
power density
redox electrolyte
supercapacitor
author_facet Le Zhang
Shuhua Yang
Jie Chang
Degang Zhao
Jieqiang Wang
Chao Yang
Bingqiang Cao
Bingqiang Cao
author_sort Le Zhang
title A Review of Redox Electrolytes for Supercapacitors
title_short A Review of Redox Electrolytes for Supercapacitors
title_full A Review of Redox Electrolytes for Supercapacitors
title_fullStr A Review of Redox Electrolytes for Supercapacitors
title_full_unstemmed A Review of Redox Electrolytes for Supercapacitors
title_sort review of redox electrolytes for supercapacitors
publisher Frontiers Media S.A.
series Frontiers in Chemistry
issn 2296-2646
publishDate 2020-06-01
description Supercapacitors (SCs) have attracted widespread attention due to their short charging/discharging time, long cycle life, and good temperature characteristics. Electrolytes have been considered as a key factor affecting the performance of SCs. They largely determine the energy density based on their decomposition voltage and the power density from their ionic conductivity. In recent years, redox electrolytes obtained a growing interest due to an additional redox activity from electrolytes, which offers an increased charge storage capacity in SCs. This article summarizes the latest progress in the research of redox electrolytes, and focuses on their properties, mechanisms, and applications based on different solvent types available. It also proposes potential solutions for how to effectively increase the energy density of the SCs while maintaining their high power and long life.
topic ionic conductivity
energy density
power density
redox electrolyte
supercapacitor
url https://www.frontiersin.org/article/10.3389/fchem.2020.00413/full
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