文献类型：期刊文献

英文题名：High-Performance-Integrated Stretchable Supercapacitors Based on a Polyurethane Organo/Hydrogel Electrolyte

作者：Mu, Hongchun[1];Huang, Xinming[1];Wang, Wenqiang[1];Tian, Xiaohui[1];An, Zhongxun[2];Wang, Gengchao[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Shanghai Aowei Technol Dev Co Ltd, Shanghai 201203, Peoples R China

年份：2022

卷号：14

期号：1

起止页码：622

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20220111411499);WOS:【SCI-EXPANDED(收录号:WOS:000734461800001)】；

基金：We greatly appreciate the financial support of the National Natural Science Foundation of China (21875065, 22109045, and 51673064).

语种：英文

外文关键词：organo/hydrogel electrolytes; polyurethane; wide voltage window; integrated design; stretchable supercapacitors

摘要：Stretchable supercapacitors (SSCs) are promising energy storage devices for emerging wearable electronics. However, the low-energy density and poor deformation performance are still a challenge. Herein, an amphiphilic polyurethane-based organo/hydrogel electrolyte (APUGE) with a H2O/AN-in-salt (H2O/AN-NaClO4) is prepared for the first time. The asprepared APUGE shows a wide voltage window (similar to 2.3 V), good adhesion, and excellent resilience. In addition, the intrinsically stretchable electrodes are prepared by coating the activated carbon slurry onto the PU/carbon black/MWCNT conductive elastic substrate. Based on the strong interface adhesion of the PU matrix, the as-assembled SSC delivers high-energy density (5.65 mW h cm(-3) when the power density is 0.0256 W cm(-3)) and excellent deformation stability with 94.5% capacitance retention after 500 stretching cycles at 100% strain. This fully integrated construction concept is expected to be extended to multisystem stretchable metal ion batteries, stretchable lithium-sulfur batteries, and other stretchable energy storage devices.