Hierarchical graphite foil/CoNi2S4 flexible electrode with superior thermal conductivity for high-performance supercapacitors

作     者：Yunming Li Jiahui Chen Yaqiang Ji Wenhu Yang Xian-Zhu Fu Rong Sun Ching-Ping Wong 

作者机构：Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 Guangdong China Shenzhen College of Advanced Technology University of Chinese Academy of Sciences Shenzhen 518055 Guangdong China School of New Energy Science and Engineering Xinyu University Xinyu 338004 Jiangxi China School of Electronics and Information Engineering Guangdong Ocean University Zhanjiang 524088 Guangdong China College of Materials Science and Engineering Shenzhen University Shenzhen 518061 Guangdong China Department of Electronic Engineering Faculty of Engineering The Chinese University of Hong Kong Hong Kong 999077 China 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2018年第27卷第2期

页      面：463-471页

核心收录：

学科分类：0820[工学-石油与天然气工程] 080801[工学-电机与电器] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China (21203236) Shenzhen Peacock Plan (KQCX2015033117354154) Shenzhen basic research plan (JCYJ2015052114432090) the Science & Technology Project of Educational Commission of Jiangxi Province, China (GJJ161198) 

主　　题：Electrode materials Thermal conductivity Heat dissipation Energy storage Supercapacitors 

摘      要：Effective heat dissipation is a crucial issue in electrochemical energy storage devices. Thus, it is highly desirable to develop high-performance electrode materials with high thermal conductivity. Here, we report a facile one-step electrodeposition method to synthesize ternary cobalt nickel sulfide（CoNi2S4）flower-like nanosheets which are grown on graphite foil（GF） as binder-free electrode materials for supercapacitors. The as-fabricated GF/CoNi2S4 integrated electrode manifested an excellent thermal conductivity of 620.1 W·m-1·K-1 and a high specific capacitance of 881 F·g-2 at 5 mA cm-2, as well as good rate capability and cycling stability. Ultimately, the all-solid-state symmetric supercapacitor based on these advanced electrodes demonstrated superior heat dissipation performance during the galvanostatic charge-discharge processes. This novel strategy provides a new example of effective thermal management for potential applications in energy storage devices.