The Zinc-Air Battery Performance with Ni-Doped MnO2 Electrodes

A rechargeable zinc-air battery shows great promise because of its high energy density, low cost, greater safety, and its environment-friendly properties. However, rechargeable zinc-air battery development has been hindered by the lack of a satisfactory bi-functional electrode. In this research, we...

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Bibliographic Details
Published in:Processes 2021-07, Vol.9 (7), p.1087
Main Authors: Chowdhury, Anuradha, Lee, Kuan-Ching, Wei Lim, Mitchell Shyan, Pan, Kuan-Lun, Chen, Jyy Ning, Chong, Siewhui, Huang, Chao-Ming, Pan, Guan-Ting, Yang, Thomas Chung-Kuang
Format: Article
Language:English
Subjects:
Batteries
Chemical reduction
Diffusion rate
Electrodes
Electrolytes
Energy storage
Flux density
Hydroxyl groups
Ion diffusion
Manganese
Manganese dioxide
Metal air batteries
Metal oxides
Morphology
Nickel
Oxygen
Oxygen evolution reactions
Oxygen reduction reactions
Product safety
Ratios
Rechargeable batteries
Renewable resources
Spectrum analysis
Stainless steels
Thin films
Work stations
Zinc
Zinc oxides
Zinc-oxygen batteries
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Summary:A rechargeable zinc-air battery shows great promise because of its high energy density, low cost, greater safety, and its environment-friendly properties. However, rechargeable zinc-air battery development has been hindered by the lack of a satisfactory bi-functional electrode. In this research, we report on a solution which uses electro-deposition to dope nickel into manganese on the stainless-steel mesh. The result shows the hydroxyl group on the prepared samples improving its oxygen reduction reaction and oxygen evolution reaction performance, as well as boosting the ion diffusion rate and stabilizing the zinc-air battery charge-discharge performance (overall potential gap dropped from 0.84 V to 0.82 V after 1000 cycles). This study contributes to our understanding of a new method for the improvement of bi-functional electrodes.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr9071087