文献类型：期刊文献

中文题名：A hollow tubular NiCo layacknered double hydroxide@Ag nanowire structure for high-power-density flexible aqueous Ni//Zn battery

作者：Xiaoyang Xuan[1,3];Min Qian[1];Likun Pan[2];Ting Lu[2];Yang Gao[4];Lu Han[2];Lijia Wan[2];Yueping Niu[1,3];Shangqing Gong[1,3]

机构：[1]School of Physics,East China University of Science and Technology,Shanghai 200237,China;[2]Shanghai Key Laboratory of Magnetic Resonance,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China;[3]Key Laboratory for Ultrafine Materials of Ministry of Education,Shanghai Engineering Research Center of Hierarchical Nanomaterials,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;[4]School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China

年份：2022

卷号：31

期号：7

起止页码：593

中文期刊名：Journal of Energy Chemistry

外文期刊名：能源化学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；

基金：sponsored by the National Natural Science Foundation of China(61804054);the Natural Science Foundation of Shanghai(18ZR1410400);the Shanghai Sailing Program(17YF1403300);the Shanghai Aerospace Science and Technology Innovation Fundation(SISP2018);the Shanghai Aerospace Science and Technology Innovation Fund(SAST2019-067)。

语种：英文

中文关键词：NiCo layered double hydroxide;Silver nanowire;Hollow tubular morphology;Flexible Ni//Zn battery

摘要：Flexible aqueous Ni//Zn batteries have attracted much attention as promising candidates for energy storage in the field of flexible electronics.However,the Ni-based cathodes still face the challenges of poor conductivity,confined charge/mass transfer,and non-flexibility.In this work,we designed a hollow tubular structure consisting of a conductive silver nanowire (Ag NW) wrapped by active Ni Co layered double hydroxide (LDH),for enhancing the electrical conductivity,improving the charge/mass transfer kinetics,and facilitating the ion penetration.By optimizing the contents of Ni,Co and Ag NW,the Ni_(4)Co LDH@Ag_(1.5)NW composite shows a maximum specific capacity of 115.83 m Ah g^(-1)at 0.1 A g^(-1)measured in a two-electrode system.Highlightingly,the flexible aqueous Ni//Zn battery assembled by Ni_(4)Co LDH@Ag_(1.5)NW interwoven with multi-walled carbon nanotube cathode and Zn foil anode realizes a high power density of 160μW cm^(-2)at the energy density of 23.14μWh cm^(-2),which is superior compared with those of oxide/hydroxide based devices and even higher than those of many carbon-based supercapacitors,showing its promising potentials for flexible energy storage applications.