超级电容器
材料科学
电容
电解质
纤维素
羧甲基纤维素
准固态
储能
复合材料
降级(电信)
抗压强度
化学工程
电极
化学
计算机科学
电信
冶金
物理化学
工程类
功率(物理)
物理
钠
量子力学
色素敏化染料
作者
Xiaobo Lin,Mengying Wang,Junchai Zhao,Xia Wu,Jixing Xie,Jinhui Yang
标识
DOI:10.1016/j.carbpol.2022.120502
摘要
Recyclable and degradable supercapacitors have promising applications for a sustainable energy storage industry. Herein, we prepare a dual-physical crosslinking (DP) carboxymethyl cellulose (CMC) hydrogel with high-toughness, healability, and electric conductivity by integrating abundant ions into the matrix. The prepared hydrogel displays a maximum compressive fracture stress of 4.42 MPa, fast healing in five seconds, and full degradation within eight days. Moreover, the fabricated supercapacitor shows high specific capacitance (309 F g-1) and volumetric capacitance (2.60 F cm-3). The supercapacitor achieves a healing efficiency of 93.9 % after five cuttings, and exhibits a cycling stability of 84.6 % capacitance retention after 1000 cycles. These merits ensure that the all-cellulose-based supercapacitor can operate in case of sudden collision and deformation, which contribute to reducing the environmental hazards from supercapacitor's preparation to its abandonment.
科研通智能强力驱动
Strongly Powered by AbleSci AI