文献类型：期刊文献

英文题名：A facile prestrain-stick-release assembly of stretchable supercapacitors based on highly stretchable and sticky hydrogel electrolyte

作者：Tang, Qianqiu[1];Chen, Mingming[1];Wang, Gengchao[1];Bao, Hua[1];Saha, Petr[2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ, Ctr Polymer Syst, Zlin, Czech Republic

年份：2015

卷号：284

起止页码：400

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20151200649309);WOS:【SCI-EXPANDED(收录号:WOS:000354140700051)】；

基金：We greatly appreciate the financial supports of National Natural Science Foundation of China (51173042), Shanghai Municipal Science and Technology Commission (12nm0504102), Fundamental Research Funds for the Central Universities and Czech-Chinese Cooperation (LH14273).

语种：英文

外文关键词：Prestrain-stick-release assembly; Stretchable supercapacitor; Polyacrylamide; Stretchable hydrogel electrolyte; Stickiness

摘要：A facile prestrain-stick-release assembly strategy for the stretchable supercapacitor device is developed based on a novel Na2SO4-aPUA/PAAM hydrogel electrolyte, saving the stretchable rubber base conventionally used. The Na2SO4-aPUA/PAAM hydrogel electrolyte exhibits high stretchability (>1000%), electrical conductivity (0.036 S cm(-1)) and stickiness. Due to the unique features of the hydrogel electrolyte, the carbon nanotube@MnO2 film electrodes can be firmly stuck to two sides of the prestrained hydrogel electrolyte. Then, by releasing the hydrogel electrolyte, homogenous buckles are formed for the film electrodes to get a full stretchable supercapacitor device. Besides, the high stickiness of the hydrogel electrolyte ensures its strong adhesion with the film electrodes, facilitating ion and electronic transfer of the supercapacitor. As a result, excellent electrochemical performance is achieved with the specific capacitance of 478.6 mF cm(-2) at 0.5 mA cm(-2) (corresponding to 201.1 F g(-1)) and capacitance retention of 91.5% after 3000 charging-discharging cycles under 150% strain, which is the best for the stretchable supercapacitors. (C) 2015 Elsevier B.V. All rights reserved.