具有智能电致变色功能的镍钴双金属氢氧化物电极基柔性镍锌电池用于可视化监测剩余电量  

A NiCo bimetallic hydroxide electrode-based flexible Ni//Zn battery with smart electrochromic function for visually monitoring battery residual electricity

作　　者：玄晓阳 钱敏 潘丽坤 陆婷 高阳 钮月萍 龚尚庆 Xiaoyang Xuan;Min Qian;Likun Pan;Ting Lu;Yang Gao;Yueping Niu;Shangqing Gong(School of Physics,East China University of Science and Technology,Shanghai 200237,China;Shanghai Key Laboratory of Magnetic Resonance,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China;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;School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[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

出　　处：《Science China Materials》2023年第2期567-576,共10页中国科学（材料科学（英文版）

基　　金：supported by the National Natural Science Foundation of China(61804054);the Key Research Plan of the National Natural Science Foundation of China(12034007);the Natural Science Foundation of Shanghai(18ZR1410400);Shanghai Aerospace Science and Technology Innovation Foundation(SISP2018);Shanghai Aerospace Science and Technology Innovation Fund(SAST2019-067)。

摘　　要：具有电化学变色功能的柔性电池在智能电子领域显示出巨大的应用潜力.然而,具有可视化电量预警功能的镍锌电池目前尚未见报道.在此,我们设计了一种用于柔性镍锌电池的电致变色镍钴氢氧化物/镍/氧化铟锡(NiCo BH/Ni/ITO)柔性电极.通过优化Ni层厚度,电极在电流密度为0.1 mA cm^(-2)时,着色效率为59.89 cm^(2)C^(-1),容量为7.15μA h cm^(-2).相应组装的电致变色镍锌电池功率密度为160μW cm^(-2)时,能量密度为12.69μW h cm^(-2),优于部分文献报道的透明柔性超级电容器和电致变色电池.值得注意的是,组装的镍锌电池在充放电过程中显示出可逆的颜色变化,提供了一种可视化监测电池剩余电量的新功能.Flexible battery with a smart electrochromic function of changing color in the electrochemical process reveals great application potentials in the field of intelligent electronics.However,Ni//Zn battery with an electricity visual alerting function has seldom been reported by now.Herein,we designed a flexible Ni//Zn battery,assembled by the NiCo bimetallic hydroxide/Ni/indium tin oxide(NiCo BH/Ni/ITO)flexible electrode with an electrochromic feature.By optimizing the thickness of the middle Ni layer,the NiCo BH/Ni/ITO electrode shows a coloration efficiency of 59.89 cm^(2)C^(-1)and a capacity of 7.15μA h cm^(-2)at a current density of 0.1 mA cm^(-2).Correspondingly,the flexible electrochromic Ni//Zn battery shows a high energy density of 12.69μW h cm^(-2)at a power density of 160μW cm^(-2),outperforming those of transparent flexible supercapacitors and electrochromic batteries reported in literatures.Moreover,the flexible electrochromic Ni//Zn battery displays reversible color change during charging and discharging processes,rendering it a novel function to monitor the battery residual electricity by visual inspection.

关 键 词：剩余电量 充放电过程 电致变色 镍锌电池 可视化监测 柔性电极 能量密度 柔性超级电容器 

分 类 号：TM912[电气工程—电力电子与电力传动]