Wire-Shaped 3D-Hybrid Supercapacitors as Substitutes for Batteries

作     者：Kyeong‑Nam Kang Ananthakumar Ramadoss Jin‑Wook Min Jong‑Chul Yoon Deokjung Lee Seok Ju Kang Ji‑Hyun Jang Kyeong-Nam Kang;Ananthakumar Ramadoss;Jin-Wook Min;Jong-Chul Yoon;Deokjung Lee;Seok Ju Kang;Ji-Hyun Jang

作者机构：School of Energy and Chemical EngineeringLow Dimensional Carbon Materials CenterUlsan National Institute of Science and TechnologyUlsan 44919Republic of Korea Laboratory for Advanced Research in Polymeric MaterialsCentral Institute of Plastic Engineering and TechnologyBhubaneswar 751024India School of MechanicalAerospace and Nuclear EngineeringUlsan National Institute of Science and TechnologyUlsan 44919Republic of Korea 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2020年第12卷第2期

页      面：211-223页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：supported by national research foundation of Korea(NRF)(No.NRF-2019R1H1A2039743) S-Oil corporation,and “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning(KETEP) granted financial resource from the Ministry of Trade,Industry and Energy,Republic of Korea(No.20194010201890) 

主　　题：Three-dimensional(3D)metal current collector Flexible hybrid supercapacitor Wire-shaped supercapacitor High energy density device Fast charging energy storage system 

摘      要：We report a wire-shaped three-dimensional(3D)-hybrid supercapacitor with high volumetric capacitance and high energy density due to an interconnected 3D-configuration of the electrode allowing for large number of electrochemical active sites,easy access of electrolyte ions,and facile charge transport for flexible wearable *** interconnected and compact electrode delivers a high volumetric capacitance(gravimetric capacitance)of 73 F cm−3(2446 F g−1),excellent rate capability,and cycle *** 3D-nickel cobalt-layered double hydroxide onto 3D-nickel wire(NiCo LDH/3D-Ni)//the 3D-manganese oxide onto 3D-nickel wire(Mn3O4/3D-Ni)hybrid supercapacitor exhibits energy density of 153.3 Wh kg−1 and power density of 8810 W kg−*** red lightemitting diode powered by the as-prepared hybrid supercapacitor can operate for 80 min after being charged for tens of seconds and exhibit excellent electrochemical stability under various deformation *** results verify that such wire-shaped 3D-hybrid supercapacitors are promising alternatives for batteries with long charge–discharge times,for smart wearable and implantable devices.