Two-birds-one-stone: multifunctional supercapacitors beyond traditional energy storage

Yang Zhou; Hualei Qi; Jinyuan Yang; Zheng Bo; Feng Huang; Mohammad Saiful Islam; Xunyu Lu; Liming Dai; Rose Amal; Chun H. Wang; Zhaojun Han

doi:10.1039/D0EE03167D

Two-birds-one-stone: multifunctional supercapacitors beyond traditional energy storage

Yang Zhou,†^a Hualei Qi,†^bc Jinyuan Yang,

^bc Zheng Bo,

*^c Feng Huang,

^a Mohammad Saiful Islam,^a Xunyu Lu,^d Liming Dai,

^d Rose Amal,

^d Chun H. Wang

*^a and Zhaojun Han

*^abd

Author affiliations

* Corresponding authors

^a School of Mechanical and Manufacturing Engineering, UNSW Sydney, New South Wales 2052, Australia
E-mail: chun.h.wang@unsw.edu.au

^b CSIRO Manufacturing, 36 Bradfield Road, Lindfield, NSW 2070, Australia

^c State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang Province 310027, China
E-mail: bozh@zju.edu.cn

^d School of Chemical Engineering, UNSW Sydney, New South Wales 2052, Australia
E-mail: zhaojun.han@unsw.edu.au

Abstract

The last decade has witnessed an extensive uptake of clean and sustainable energy sources to meet the surging energy demand while mitigating the increasing levels of greenhouse gas emission and air pollution. Among various energy systems, electrochemical energy storage devices such as batteries and supercapacitors have attracted worldwide attention for use in electric-powered transport, portable electronics, and biomedical devices. Recently, new multifunctional supercapacitors, which combine energy storage capability with load-carrying and other functions, offer a new “two-birds-one-stone” strategy for next-generation energy storage systems to store energy beyond the traditional systems. Multifunctional supercapacitors show great promise in reducing the size and volume of devices, improving the charge storage capacity, and minimising the cost in materials and fabrication while bringing the benefits of additional functions to the systems. This review describes the recent advances in multifunctional supercapacitors in terms of materials design, device configuration, system integration, and applications. The unique features of multifunctional supercapacitors depend strongly on architectural designs and system integration, which allow elimination of certain components to reduce the size and weight, thus improving the overall system performance. The review focuses specifically on multifunctional supercapacitors with novel mechanical, surface/interfacial, thermal, electronic, photodetection and energy harvesting/conversion functions. In addition, challenges and opportunities for further developments in the emerging field of multifunctional supercapacitors are suggested and discussed.

This article is part of the themed collection: Energy and Environmental Science Recent Review Articles

Energy & Environmental Science

Two-birds-one-stone: multifunctional supercapacitors beyond traditional energy storage

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