材料科学技术(英文版)2021，Vol.74Issue(15) ：52-59.

Enhanced zinc storage performance of mixed valent manganese oxide for flexible coaxial fiber zinc-ion battery by limited reduction control

Xiaobei Zang Li Lingtong Jiaxin Meng Lijia Liu Yuanyuan Pan Qingguo Shao Ning Cao
材料科学技术(英文版)2021，Vol.74Issue(15) ：52-59.
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Enhanced zinc storage performance of mixed valent manganese oxide for flexible coaxial fiber zinc-ion battery by limited reduction control

Xiaobei Zang 1Li Lingtong 1Jiaxin Meng 1Lijia Liu 2Yuanyuan Pan 3Qingguo Shao 1Ning Cao1
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作者信息

  • 1. School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
  • 2. Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A5B7, Canada
  • 3. State Key Laboratory of Heavy Oil Processing, Institute of New Energy, College of Chemical Engineering,China University of Petroleum (East China),Qingdao, 266580, China
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Abstract

While manganese-based cathodes have been intensively studied for zinc-ion batteries (ZIBs),the limited rate capability and cycle life have always been a difficult problem to be solved.Here,we report a mixed valent manganese oxide (MnOx) cathode with superior electrochemical performance,which exhibits a high specific capacity of 450 mA h/g at 0.2 C and a satisfactory specific capacity of 158.3 mA h/g at a high rate of 5 C.The mixed cathode system reduces the charge transfer resistance,and show good surface stability and adsorption properties,so it is beneficial for the storage of Zn2+.Meanwhile,coaxial fiber ZIBs (CFZIBs) with splendid flexibility are assembled utilizing the elaborately prepared cathode material.The CFZIBs achieve a reversible capacity of 255.8 mA h/g and the capacity retention rate is as high as 80 ％ after 1000 bending deformations.This study provides new opportunities for designing ZIBs with high performance and high flexibility.

Key words

Mixed valent manganese oxide/Limited reduction/Storage mechanism/Flexible zinc-ion battery/Coaxial fiber structure

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基金项目

This work was supported by National Natural Science Foundation of China(21905304)

Natural Science Foundation of Shandong Province(ZR2019BEM031)

Fundamental Research Funds for the Central Universities(18CX02158A)

Fundamental Research Funds for the Central Universities(05Y18030020)

Fundamental Research Funds for the Central Universities(19CX05001A)

出版年

2021
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI
影响因子：0.657
ISSN：1005-0302
被引量1
参考文献量30
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