文献类型：期刊文献

英文题名：Freeze-Resistant and Tough Cellulose-Integrated Conductive Hydrogels for Flexible Supercapacitors and Self-Powered Electronic Devices

作者：Lu, Jie[1,2,3] Zhu, XiaoLong[1] Zhang, Yuting[3] Wang, Fuyou[4] Xie, Hui[1] Guo, Lizhen[3] Liu, He[3] Xu, Xu[2]

第一作者：Lu, Jie

通信作者：Xie, H[1];Xu, X[2];Guo, LZ[3]

机构：[1]Nanjing Tech Univ, Coll Chem & Chem Engn, Nanjing 211816, Jiangsu Provinc, Peoples R China;[2]Nanjing Forestry Univ, Int Innovat Ctr Forest Chem & Mat, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Coll Chem Engn, Nanjing 210037, Peoples R China;[3]Chinese Acad Forestry, Natl Engn Res Ctr Low Carbon Proc & Utilizat Fores, Key Lab Biomass Energy & Mat, Inst Chem Ind Forestry Prod,Natl Engn Res Ctr Low, Nanjing 210042, Jiangsu Provinc, Peoples R China;[4]Nantong CIMC ECO New Mat Dev Co LTD, Nantong 226561, Peoples R China

年份：2025

外文期刊名：ACS APPLIED ELECTRONIC MATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001554066000001)】；

基金：This research was undertaken thanks to the Forestry Science and Technology Innovation and Extension Project of Jiangsu Province (LYKJ[2021]04) and Jiangxi "Double Thousand Plan" (jxsq2023102212).

语种：英文

外文关键词：cellulose; hydrogel; supercapacitor; electrolytes; freeze-resistant; self-powered

摘要：Hydrogel electrolytes hold significant promise for flexible and wearable electronics but often suffer from limited ionic conductivity, poor mechanical integrity, and vulnerability to extreme environmental conditions. Herein, a cellulose-integrated conductive hydrogel electrolyte (MCBH-Zn) with outstanding mechanical strength and freeze resistance is reported. The MCBH-Zn hydrogel achieves a high compressive strength of 5.16 MPa and a tensile fracture stress of 312 kPa, enabled by the synergistic effects of a covalently cross-linked polyacrylamide (PAM) network, hydrogen bonding between PAM and cellulose, and coordination interactions between bentonite (BT) and cellulose. Additionally, it delivers excellent ionic conductivity of 88.9 mS cm-1 at room temperature and 27.3 mS cm-1 at -60 degrees C. Consequently, a flexible solid-state zinc-ion hybrid supercapacitor (MCBH-ZHSC) assembled with MCBH-Zn delivers stable electrochemical behavior across a wide temperature range and maintains a superior capacity retention of 93% after 10,000 cycles at 10.0 A g-1. Furthermore, the MCBH-Zn-based wearable device demonstrates self-sustained flexibility and efficient energy harvesting and conversion. This work offers a facile strategy for engineering high-performance hydrogel electrolytes tailored for next-generation wearable technologies.