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Oxygen-Defect Enhanced Anion Adsorption Energy Toward Super-Rate and Durable Cathode for Ni–Zn Batteries

Jia Yao Li Tao Hanbin Wang Jun Zhang Hao Wang Houzhao Wan Chi Chen Jie Ji Nengze Wang Zhaohan Zheng Jinxia Duan Xunying Wang Guokun Ma

纳微快报（英文）2021，Vol.13Issue(11)：128-141,14.

Oxygen-Defect Enhanced Anion Adsorption Energy Toward Super-Rate and Durable Cathode for Ni–Zn Batteries

Oxygen?Defect Enhanced Anion Adsorption Energy Toward Super?Rate and Durable Cathode for Ni–Zn Batteries

Jia Yao ¹Li Tao ¹Hanbin Wang ¹Jun Zhang ¹Hao Wang ¹Houzhao Wan ¹Chi Chen ²Jie Ji ³Nengze Wang ¹Zhaohan Zheng ¹Jinxia Duan ¹Xunying Wang ¹Guokun Ma¹

作者信息

1. Hubei Key Laboratory of Ferro and Piezoelectric Materials and Devices,School of Microelectronics and Faculty of Physics and Electronic Science,Hubei University,Wuhan 430062,People's Republic of China
2. CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,People's Republic of China
3. Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials,Xiamen Institute of Rare Earth Materials,Haixi Institute,Chinese Academy of Sciences,Xiamen 361021,People's Republic of China
折叠

摘要

Abstract

The alkaline zinc-based batteries with high energy density are becoming a research hotspot. However, the poor cycle stability and low-rate performance limit their wide application. Herein, ultra-thin -CoNiO2 nanosheet with rich oxygen defects anchored on the vertically arranged Ni nanotube arrays -(Od-CNO@Ni NTs) is used as a positive material for rechargeable alkaline Ni–Zn batteries. As the highly uniform Ni nanotube arrays provide a fast electron/ion transport path and abundant active sites, the -Od-CNO@Ni NTs electrode delivers excellent capacity (432.7 mAh -g?1) and rate capability (218.3 mAh -g?1 at 60 A -g?1). Moreover, our -Od-CNO@Ni NTs//Zn battery is capable of an ultra-long lifespan (93.0％ of initial capacity after 5000 cycles), extremely high energy density of 547.5 Wh -kg?1 and power density of 92.9 kW -kg?1 (based on the mass of cathode active substance). Meanwhile, the theoreti-cal calculations reveal that the oxygen defects can enhance the interaction between electrode surface and electrolyte ions, contributing to higher capacity. This work opens a reasonable idea for the development of ultra-durable, ultra-fast, and high-energy Ni–Zn battery.

关键词

Ni–Zn battery/Oxygen defect/Nanotube array/CoNiO2 nanosheet/Adsorption energy

Key words

Ni–Zn battery/Oxygen defect/Nanotube array/CoNiO2 nanosheet/Adsorption energy

引用本文复制引用

Jia Yao,Li Tao,Hanbin Wang,Jun Zhang,Hao Wang,Houzhao Wan,Chi Chen,Jie Ji,Nengze Wang,Zhaohan Zheng,Jinxia Duan,Xunying Wang,Guokun Ma..Oxygen-Defect Enhanced Anion Adsorption Energy Toward Super-Rate and Durable Cathode for Ni–Zn Batteries[J].纳微快报（英文）,2021,13(11):128-141,14.

基金项目

This work was supported by the National Natural Science Foundation of China(No.52002122),the Science and Technology Department of Hubei Province(No.2019AAA038),the Project funded by China Postdoctoral Science Foundation(No.2021M690947)and the Wuhan Yellow Crane Talent Program(No.2017-02). （No.52002122）

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