期刊
ADVANCED POWDER MATERIALS
卷 2, 期 1, 页码 -出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.apmate.2022.100075
关键词
Supercapacitor; Self-discharge; Mechanisms; Suppression strategies; Remaining issues
The growing demand for renewable energy sources has led to the development of energy storage systems. Supercapacitors have gained attention for their high power density, long cycle life, fast recharge rate, and low maintenance. However, their application is hindered by self-discharge behaviors. Recent research has made breakthroughs in understanding the self-discharge mechanisms of supercapacitors and developing strategies to suppress it. This article reviews the mechanisms and suppression strategies, discusses existing issues, and suggests directions for future research.
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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