文献类型：期刊文献

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

作者：Li, Yunming[1,2,3]; Chen, Jiahui[1,2]; Ji, Yaqiang[1]; Yang, Wenhu[1,4]; Fu, Xian-Zhu[1,5]; Sun, Rong[1]; Wong, Ching-Ping[6]

机构：[1] Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China; [2] Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China; [3] School of New Energy Science and Engineering, Xinyu University, Xinyu, Jiangxi, 338004, China; [4] School of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China; [5] College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong, 518061, China; [6] Department of Electronic Engineering, Faculty of Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong

年份：2018

卷号：27

期号：2

起止页码：463

外文期刊名：Journal of Energy Chemistry

收录：EI(收录号：20175004532202)、Scopus(收录号：2-s2.0-85037635657)

语种：英文

外文关键词：Graphite - Nickel compounds - Electrodes - Sulfur compounds - Cobalt compounds - Heat storage - Storage (materials) - Supercapacitor - Electric discharges

外文摘要：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. ? 2017 Science Press