Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges

The ever-growing demands for renewable energy sources motivate the development of energy storage systems. Among them, supercapacitors are received increasing attention due to their high power density, long cycle life, fast recharge rate, and almost no maintenance. Nevertheless, their application is...

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Main Authors: Wenxu Shang, Wentao Yu, Xu Xiao, Yanyi Ma, Yi He, Zhongxi Zhao, Peng Tan
Format: Article
Language:English
Published: KeAi Communications Co. Ltd. 2023-01-01
Series:Advanced Powder Materials
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772834X22000586
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author Wenxu Shang
Wentao Yu
Xu Xiao
Yanyi Ma
Yi He
Zhongxi Zhao
Peng Tan
author_facet Wenxu Shang
Wentao Yu
Xu Xiao
Yanyi Ma
Yi He
Zhongxi Zhao
Peng Tan
author_sort Wenxu Shang
collection DOAJ
description The ever-growing demands for renewable energy sources motivate the development of energy storage systems. Among them, supercapacitors are received increasing attention due to their high power density, long cycle life, fast recharge rate, and almost no maintenance. Nevertheless, their application is hindered by severe self-discharge behaviors, especially in wearable and energy storage devices. In recent years, tremendous excellent works have been reported to conquer this shortcoming through various creative strategies. Herein, we gives a timely spotlight on breakthroughs in the self-discharge mechanism investigations of supercapacitors and the corresponding suppression strategies. The self-discharge mechanisms of various supercapacitors were introduced first, followed by a summary of the strategies from materials (i.e., electrode, electrolyte, and separator) to system and protocol optimization, furthermore, the connection between them, existing issues, and possible directions for future research are discussed.
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spelling doaj.art-62da866dfa46471ba59c5388b0af11482023-02-15T04:29:04ZengKeAi Communications Co. Ltd.Advanced Powder Materials2772-834X2023-01-0121100075Insight into the self-discharge suppression of electrochemical capacitors: Progress and challengesWenxu Shang0Wentao Yu1Xu Xiao2Yanyi Ma3Yi He4Zhongxi Zhao5Peng Tan6Department of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, 230026, ChinaDepartment of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, 230026, ChinaDepartment of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, 230026, ChinaDepartment of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, 230026, ChinaDepartment of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, 230026, ChinaDepartment of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, 230026, ChinaCorresponding author.; Department of Thermal Science and Energy Engineering, University of Science and Technology of China (USTC), Hefei, 230026, ChinaThe ever-growing demands for renewable energy sources motivate the development of energy storage systems. Among them, supercapacitors are received increasing attention due to their high power density, long cycle life, fast recharge rate, and almost no maintenance. Nevertheless, their application is hindered by severe self-discharge behaviors, especially in wearable and energy storage devices. In recent years, tremendous excellent works have been reported to conquer this shortcoming through various creative strategies. Herein, we gives a timely spotlight on breakthroughs in the self-discharge mechanism investigations of supercapacitors and the corresponding suppression strategies. The self-discharge mechanisms of various supercapacitors were introduced first, followed by a summary of the strategies from materials (i.e., electrode, electrolyte, and separator) to system and protocol optimization, furthermore, the connection between them, existing issues, and possible directions for future research are discussed.http://www.sciencedirect.com/science/article/pii/S2772834X22000586SupercapacitorSelf-dischargeMechanismsSuppression strategiesRemaining issues
spellingShingle Wenxu Shang
Wentao Yu
Xu Xiao
Yanyi Ma
Yi He
Zhongxi Zhao
Peng Tan
Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges
Advanced Powder Materials
Supercapacitor
Self-discharge
Mechanisms
Suppression strategies
Remaining issues
title Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges
title_full Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges
title_fullStr Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges
title_full_unstemmed Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges
title_short Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges
title_sort insight into the self discharge suppression of electrochemical capacitors progress and challenges
topic Supercapacitor
Self-discharge
Mechanisms
Suppression strategies
Remaining issues
url http://www.sciencedirect.com/science/article/pii/S2772834X22000586
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AT wentaoyu insightintotheselfdischargesuppressionofelectrochemicalcapacitorsprogressandchallenges
AT xuxiao insightintotheselfdischargesuppressionofelectrochemicalcapacitorsprogressandchallenges
AT yanyima insightintotheselfdischargesuppressionofelectrochemicalcapacitorsprogressandchallenges
AT yihe insightintotheselfdischargesuppressionofelectrochemicalcapacitorsprogressandchallenges
AT zhongxizhao insightintotheselfdischargesuppressionofelectrochemicalcapacitorsprogressandchallenges
AT pengtan insightintotheselfdischargesuppressionofelectrochemicalcapacitorsprogressandchallenges