Обзорная статья

Design and Mechanisms of Asymmetric Supercapacitors

Yuanlong ShaoCambridge Graphene Center, Department of Engineering, University of Cambridge, Cambridge CB3 0FA, United KingdomMaher F. El‐KadyDepartment of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United StatesJingyu SunCollege of Energy, Soochow Institute for Energy and Materials InnovationS (SIEMIS), Soochow University, Suzhou 215006, People’s Republic of ChinaYaogang LiEngineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai 201620, ChinaQinghong ZhangState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, ChinaMeifang ZhuState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, ChinaHongzhi WangState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, ChinaBruce DunnCalifornia NanoSystems Institute, UCLA, Los Angeles, California 90095, United StatesRichard B. KanerCalifornia NanoSystems Institute, UCLA, Los Angeles, California 90095, United States

2018en

ABI

Аннотация

Ongoing technological advances in diverse fields including portable electronics, transportation, and green energy are often hindered by the insufficient capability of energy-storage devices. By taking advantage of two different electrode materials, asymmetric supercapacitors can extend their operating voltage window beyond the thermodynamic decomposition voltage of electrolytes while enabling a solution to the energy storage limitations of symmetric supercapacitors. This review provides comprehensive knowledge to this field. We first look at the essential energy-storage mechanisms and performance evaluation criteria for asymmetric supercapacitors to understand the wide-ranging research conducted in this area. Then we move to the recent progress made for the design and fabrication of electrode materials and the overall structure of asymmetric supercapacitors in different categories. We also highlight several key scientific challenges and present our perspectives on enhancing the electrochemical performance of future asymmetric supercapacitors.

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Идентификаторы

DOI: 10.1021/acs.chemrev.8b00252

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar