期刊
SCIENCE CHINA-MATERIALS
卷 65, 期 1, 页码 10-31出版社
SCIENCE PRESS
DOI: 10.1007/s40843-021-1733-1
关键词
aqueous hybrid supercapacitors; electrode materials; electrolytes; device technologies
资金
- National Natural Science Foundation of China [51972257, 52072136, 51872104]
- National Key R&D Program of China [2016YFA0202602]
- Natural Science Foundation of Hubei Province [2018CFB581]
AHSCs offer safety and eco-friendliness, but face challenges in terms of compatibility between battery-type and capacitive electrodes.
Aqueous hybrid supercapacitors (AHSCs) offer potential safety and eco-friendliness compared with conventional electrochemical energy storage devices that use toxic and flammable organic electrolytes. They can serve as the bridge between aqueous batteries and aqueous supercapacitors by combining the advantages of high energy of the battery electrode and high power as well as long lifespan of the capacitive electrode. Over the past few decades, extensive research efforts have been devoted to developing advanced materials and fascinating device architectures for AHSCs. However, further development related to the compatibilities between the battery-type electrode and capacitive electrode remains stagnant mainly due to discrepancy encountered in terms of reaction kinetics and capacity. This review focuses on the recent progress made in the field of AHSCs via elucidating the main concepts on the design of battery and capacitive electrodes and emerging electrolytes. In particular, ingenious AHSCs that possess either better flexibility toward materials selection or better device functionality such as those with dual-ion energy storage mechanism and non-polarity feature are also discussed. Recent advances and unresolved issues in multivalent ion hybrid devices (in particular, zinc-ion AHSCs) are further outlined. Finally, future research directions and challenges for AHSCs are presented, which are anticipated to deliver higher energy and demonstrate greater multifunctionalities for more breakthrough technology applications.
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