title: Highly Stretchable and Self-Healable Supercapacitor with Reduced Graphene Oxide Based Fiber Springs.
abstract: In large-scale applications of portable and wearable electronic devices, high-performance supercapacitors are important energy supply sources. However, since the reliability and stability of supercapacitors are generally destroyed by mechanical deformation and damage during practical applications, the stretchability and self-healability must be exploited for the supercapacitors. Preparing the highly stretchable and self-healable electrodes is still a challenge. Here, we report reduced graphene oxide fiber based springs as electrodes for stretchable and self-healable supercapacitors. The fiber springs (diameters of 295 μm) are thick enough to reconnect the broken electrodes accurately by visual inspection. By wrapping fiber springs with a self-healing polymer outer shell, a stretchable and self-healable supercapacitor is successfully realized. The supercapacitor has 82.4% capacitance retention after a large stretch (100%), and 54.2% capacitance retention after the third healing. This work gave an essential strategy for designing and fabricating stretchable and self-healable supercapacitors in next-generation multifunctional electronic devices.
authors.affiliation: Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) & School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, People's Republic of China.
authors.forename: Siliang
authors.initials: S
authors.lastname: Wang
authors.affiliation: Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) & School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, People's Republic of China.
authors.forename: Nishuang
authors.identifier: 0000-0002-2507-7229
authors.initials: N
authors.lastname: Liu
authors.affiliation: Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) & School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, People's Republic of China.
authors.forename: Jun
authors.initials: J
authors.lastname: Su
authors.affiliation: Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) & School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, People's Republic of China.
authors.forename: Luying
authors.initials: L
authors.lastname: Li
authors.affiliation: School of Material Science & Engineering, Guangxi Nonferrous Metals Mineral and Materials, Collaborative Innovation Center, Guilin University of Technology , Jian'gan Road 12, Guilin, Guangxi 541004 People's Republic of China.
authors.forename: Fei
authors.initials: F
authors.lastname: Long
authors.affiliation: School of Material Science & Engineering, Guangxi Nonferrous Metals Mineral and Materials, Collaborative Innovation Center, Guilin University of Technology , Jian'gan Road 12, Guilin, Guangxi 541004 People's Republic of China.
authors.forename: Zhengguang
authors.initials: Z
authors.lastname: Zou
authors.affiliation: School of Material Science & Engineering, Wuhan Institute of Technology , Xiongchu Street 693, Wuhan 430073, People's Republic of China.
authors.forename: Xueliang
authors.initials: X
authors.lastname: Jiang
authors.affiliation: Center for Nanoscale Characterization & Devices (CNCD), Wuhan National Laboratory for Optoelectronics (WNLO) & School of Physics, Huazhong University of Science and Technology (HUST) , LuoyuRoad 1037, Wuhan 430074, People's Republic of China.
authors.forename: Yihua
authors.identifier: 0000-0003-1905-9531
authors.initials: Y
authors.lastname: Gao
keywords: fiber springs; multifunctional; self-healable; stretchable; supercapacitor