文献类型：期刊文献

英文题名：Integrated Construction Improving Electrochemical Performance of Stretchable Supercapacitors Based on Ant-Nest Amphiphilic Gel Electrolytes

作者：Mu, Hongchun[1];Zhang, Zekai[2];Lian, Cheng[2];Tian, Xiaohui[1];Wang, Gengchao[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：18

期号：48

外文期刊名：SMALL

收录：;EI(收录号：20224312998110);WOS:【SCI-EXPANDED(收录号:WOS:000870813100001)】；

基金：H.M. and Z.Z. contributed equally to this work. The authors greatly appreciate the financial supports of National Natural Science Foundation of China (21875065, 51673064).

语种：英文

外文关键词：amphiphilic gel electrolytes; integrated construction; polyurethane; stretchable supercapacitors; wide electrochemical stability windows

摘要：Aqueous integrated stretchable supercapacitors (ISSCs) have attracted extensive attention due to the intrinsic safety in future wearable electronics. However, aqueous ISSCs usually suffer from low energy density and poor dynamic deformation stability owing to the conventional hydrogel electrolytes' narrow electrochemical stability window (ESW) and dissatisfied interface bonding. Herein, an ant-nest amphiphilic polyurethane hydro/organogel electrolyte (sAPUGE) with a wide ESW (approximate to 2.2 V) and superb self-adhesion is prepared by electrospinning, which interacts with carbon-based stretchable electrodes for the construction of flame-retardant PU-based sAPUGE-ISSC. Benefitting from the synergistic effect of chemical bonding and mechanical meshing between the electrode and gel electrolyte interface, as-assembled sAPUGE-ISSC delivers a high energy density of 13.7 mWh cm(-3) (at a power density of 0.126 W cm(-3)) and outstanding dynamic deformation stability (98.3% capacitance retention after 500 stretching cycles under 100% strain). This unique hydro/organogel electrolyte provides a pathway toward the next generation of wearable energy products in modern electronics.