Multivalent metal ion hybrid capacitors: a review with a focus on zinc-ion hybrid capacitors

Multivalent metal ion hybrid capacitors have been developed as novel electrochemical energy storage systems in recent years. They combine the advantages of multivalent metal ion batteries ( e.g. , zinc-ion batteries, magnesium-ion batteries, and aluminum-ion batteries) with those of supercapacitors,...

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Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 7; no. 23; pp. 1381 - 13832
Main Authors Dong, Liubing, Yang, Wang, Yang, Wu, Li, Yang, Wu, Wenjian, Wang, Guoxiu
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 11.06.2019
Subjects
Aluminum
Aluminum-ion batteries
batteries
Capacitors
Configuration management
Electric vehicles
Electrochemical analysis
Electrochemistry
energy
energy density
Energy storage
Flux density
Ions
Magnesium
Metal ions
Storage systems
Supercapacitors
Zinc
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Summary:Multivalent metal ion hybrid capacitors have been developed as novel electrochemical energy storage systems in recent years. They combine the advantages of multivalent metal ion batteries ( e.g. , zinc-ion batteries, magnesium-ion batteries, and aluminum-ion batteries) with those of supercapacitors, and are characterized by good rate capability, high energy density, high power output and ultralong cycle life. Herein, after a brief introduction to supercapacitors and multivalent metal ion batteries, we reviewed the recent progress in research on multivalent metal ion hybrid capacitors, with a focus on zinc-ion hybrid capacitors, from the perspectives of design concept, configuration, electrochemical behavior and energy storage mechanism. An outlook of the future research regarding multivalent metal ion hybrid capacitors was also presented. This review will be beneficial for researchers around the world to have a better understanding of multivalent metal ion hybrid capacitors and develop novel electrochemical energy storage systems to meet the demands of rapidly developing electric vehicles and wearable/portable electronic products. Multivalent metal ion hybrid capacitors are overviewed from the angle of design concept, configuration, electrochemical behavior and energy storage mechanism.
Bibliography:Liubing Dong was born in 1989. He received his PhD degree in materials science and engineering from Tsinghua University in 2018. He is now a postdoctoral research associate at the Center for Clean Energy Technology, University of Technology Sydney. His current research mainly focuses on supercapacitors (especially flexible supercapacitors), multivalent-ion hybrid capacitors and rechargeable aqueous zinc-ion batteries.
Guoxiu Wang is the Director of the Centre for Clean Energy Technology and a Distinguished Professor at the University of Technology Sydney (UTS), Australia. Professor Wang is an expert in materials chemistry, electrochemistry, energy storage and conversion, and battery technologies. His research interests include lithium ion batteries, lithium-air batteries, sodium-ion batteries, lithium-sulfur batteries, supercapacitors, hydrogen storage materials, fuel cells, 2D materials such as graphene and MXenes, and electrocatalysis for hydrogen production.
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ISSN:2050-7488
2050-7496
2050-7496
DOI:10.1039/c9ta02678a