SURFACE–INTERFACE REACTION OF SUPERCAPACITOR ELECTRODE MATERIALS

Kunfeng Chen, Fei Liu, Xitong Liang and Dongfeng Xue ()
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Kunfeng Chen: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
Fei Liu: #x2020;Wuhan Institute of Marine Electric Propulsion, CSIC, Nanhuqixiao, Wuhan 430064, P. R. China
Xitong Liang: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
Dongfeng Xue: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China

Surface Review and Letters (SRL), 2017, vol. 24, issue 03, 1-14

Abstract: Facing the challenge of low energy density of conventional electric double layer supercapacitors, researchers have long been focusing on the development of novel pseudocapacitive electrode materials with higher energy densities. Since capacitive charge storage reaction mostly occurs on the interface of electrode and electrolyte, the interface chemistry determines the achievable power and energy densities of a supercapacitor. Consequently, understanding of surface–interface reaction mechanism is a key towards efficient design of high-performance supercapacitor electrode materials. In this paper, we have reviewed the recent advances in the understanding of surfaces–interfaces in the system of pseudocapacitive supercapacitors. With significant research advancements in the understanding of surface–interface of supercapacitors, novel colloidal electrode materials with improved surface–interface structures have been developed in our previous work, which have the potential to deliver both high energy and power densities. This review aims to provide an in-depth analysis on the surface–interface control approaches to improve the energy and power densities of supercapacitors.

Keywords: Supercapacitor; electrode materials; interface; colloid; surface (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1142/S0218625X17300052

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