A High Energy Density Self-supported and Bendable Organic Electrode for Redox Supercapacitors with a Wide Voltage Window  

作　　者：Rashid lqbal Aziz Ahmad Li-Juan Mao Zahid Ali Ghazi Abolhassan Imani Chun-Xiang Lu Li-Jing Xie Saad Melhi Fang-Yuan Su Cheng-Meng Chen Lin-Jie Zhi Zhi-Xiang Wei 

机构地区：[1]Chinese Academy of Sciences(CAS)Key Laboratory of Nanosystem and Hierarchical Fabrication,National Center for Nanoscience and Technology,Beijing 100190,China [2]CAS Key Laboratory of Carbon Materials,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Department of Chemistry,College of Science,University ofBisha,Bisha 61922,Saudi Arabia

出　　处：《Chinese Journal of Polymer Science》2020年第5期522-530,I0007,共10页高分子科学（英文版）

基　　金：supported by the Ministry of Science and Technology of China(Nos.2016YFF0203803 and 2016YFA020070);the National Natural Science Foundation of China(Nos.51473039 and 21534003);Scientific and Technological Key Project of Shanxi Province(Nos.MC2016-04 and MC2016-08);Natural Science Foundations of Shanxi Province(No.201801D221156);DNL Cooperation Fund of CAS(No.DNL180308)the World Academy of Sciences under the CAS-TWAS PhD President's Fellowship Program.

摘　　要：Redox-active organic electrode materials are highly desirable in realizing next-generation all-in-one bendable electronic systems.Herein,a novel flexible supercapacitors(SCs)electrode is fabricated from poly(anthraquinonyl sulfide)(PAQS)and single-walled carbon nanotubes(SWCNTs)suspension by a simple vacuum filtration and named as PAQS-SWCNTs.The PAQS-SWCNTs electrode offered an initial capacitance of 223 F·g^-1 and outstanding capacitance retention up to 78.4%after 3×10^4 charge-discharge cycles at 0.5 A·g^-1 current density.In a high potential range(0-3 V)and aprotic electrolyte,the PAQS-SWCNTs electrodes in coin cell exhibited an outstanding energy density of 69 Wh·kg^-1 at a power density of 90.6 W·kg^-1,whereas in the fabricated flexible SCs it retained 63.2 Wh·kg^-1.The PAQS-SWCNTs electrodes also showed extraordinary performance at a higher current density(20 A·g^-1)and maintained a specific capacitance of 55 and 47 F·g^-1 for coin and flexible SCs,respectively.Moreover,the flexible SC is further verified to be able to illuminate up multiple LEDs.These futuristic findings showed that the SCs assembled with flexible PAQS-SWCNTs electrodes have potential application in energy-storage devices and make them highly appealing for future redox supercapacitors.

关 键 词：Redox-active High energy density PAQS SWCNTS Flexible SCs 

分 类 号：TM53[电气工程—电器] TB383.1[一般工业技术—材料科学与工程]