文献类型：期刊文献

英文题名：Highly reliable deep eutectic gel electrolyte with synergistic conductivity, fatigue resistance, and freezing tolerance for high-performance flexible supercapacitors

作者：Zhou, Changjian[1] Zhu, Ziming[2] Li, Jie[3] Lin, Xiangyu[3] Huang, Xujuan[1] Xu, Xu[2] Liu, He[3]

第一作者：Zhou, Changjian

通信作者：Huang, XJ[1];Xu, X[2];Liu, H[3]

机构：[1]Yancheng Inst Technol, Sch Chem & Chem Engn, Yancheng 224000, Jiangsu, Peoples R China;[2]Nanjing Forestry Univ, Int Innovat Ctr Forest Chem & Mat, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210037, Peoples R China;[3]Chinese Acad Forestry, Natl Engn Res Ctr Low Carbon Proc & Utilizat Fores, Natl Key Lab Dev & Utilizat Forest Food Resources, Inst Chem Ind Forest Prod,Key Lab Biomass Energy &, Nanjing 210042, Peoples R China

年份：2026

卷号：528

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;Scopus(收录号：2-s2.0-105028970298);WOS:【SCI-EXPANDED(收录号:WOS:001665710700001)】；

基金：We gratefully acknowledge the Funding for School-Level Research Projects of the Yancheng Institute of Technology (No. xjr2019007) for the financial support of this research.

语种：英文

外文关键词：Cellulose; Eutectogel; Supercapacitor; Electrolyte

摘要：Flexible energy storage devices require gel electrolytes that couple high ionic conductivity with mechanical robustness and environmental stability. Here, a reinforced deep eutectic gel (GCB) was developed based on a choline chloride/acrylic acid/glycerol-based DES matrix by incorporating DES-micronized cellulose and bentonite (BT) nanosheets. The DES and DES-micronized cellulose provide abundant sites to construct the hydrogen bonding network. Meanwhile, hydroxy-rich components can coordinate with aluminum cations on BT surfaces, expanding the interlayer spacing and establishing stable ion transport channels. The optimized GCB-3 gel delivers an ionic conductivity of 14.8 mS cm- 1 at room temperature and a glass transition at about -85 degrees C, together with high fatigue resistance and universal adhesion. As a strain sensor, GCB-3 shows high sensitivity with a rapid response. When applied as a solid-state electrolyte for supercapacitors, the device operates stably between 0.0-2.0 V, retains 86.54 % of its capacitance after 80,000 cycles, and maintains reliable performance at even -60 degrees C. This work provides a facile strategy for designing highly reliable deep eutectic gels in flexible energy storage applications.