文献类型：期刊文献

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

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

机构：[1]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[2]East China Normal Univ, Sch Phys & Elect Sci, Shanghai Key Lab Magnet Resonance, Shanghai 200241, Peoples R China;[3]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：70

起止页码：593

外文期刊名：JOURNAL OF ENERGY CHEMISTRY

收录：;EI(收录号：20221611986746);WOS:【SCI-EXPANDED(收录号:WOS:000793722000002)】；

基金：This work was 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), and the Shanghai Aerospace Science and Technology Innovation Fund (SAST2019-067).

语种：英文

外文关键词：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 (AgNW) wrapped by active NiCo 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 AgNW, the Ni4Co LDH@Ag1.5NW composite shows a maximum specific capacity of 115.83 mAh g(-1) at 0.1 A g(-1) measured in a two-electrode system. Highlightingly, the flexible aqueous Ni//Zn battery assembled by Ni4Co LDH@Ag1.5NW interwoven with multi-walled carbon nanotube cathode and Zn foil anode realizes a high power density of 160 mu W cm(-2) at the energy density of 23.14 mu Wh 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. (C)& nbsp;2021 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.