文献类型：期刊文献

英文题名：All-solid-state asymmetric supercapacitor based on reduced graphene oxide/carbon nanotube and carbon fiber paper/polypyrrole electrodes

作者：Yang, Chongyang[1];Shen, Jiali[1];Wang, Chunyan[1];Fei, Haojie[1];Bao, Hua[1];Wang, Gengchao[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2014

卷号：2

期号：5

起止页码：1458

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20140217173713);WOS:【SCI-EXPANDED(收录号:WOS:000328955200038)】；

基金：This work was supported by National Natural Science Foundation of China (51173042), Shanghai Municipal Science and Technology Commission (12nm0504102), and Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Composite films - Solid electrolytes - Supercapacitor - Electrochemical deposition - Electrochemical electrodes - Capacitance - Carbon fibers - Multiwalled carbon nanotubes (MWCN) - Graphene - Reduction - Polypyrroles

摘要：Sandwich-like reduced graphene oxide/carboxylated multi-walled carbon nanotube (RGO/cMWCNT) hybrid film and the carbon fiber paper-supported polypyrrole (CFP/PPy) composite film were prepared by a vacuum-infiltration process and an electrochemical deposition method, respectively. Furthermore, a novel all-solid-state asymmetric supercapacitor (ASC) was fabricated using RGO/cMWCNT as the negative electrode and CFP/PPy as the positive electrode, separated with potassium polyacrylate/KCl gel electrolyte. Due to the unique structure, stable potential window and good capacitive performance of the two electrodes, the as-fabricated ASC can be cycled reversibly at a cell voltage of 1.6 V and displays outstanding performances with an energy density of 28.6 W h kg(-1) and a power density of 15.1 kW kg(-1). Additionally, our ASC device also presents a superior long cycle life with 93% capacitance retention after 2000 cycles.