期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 45, 期 23, 页码 13025-13034出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2020.02.222
关键词
Aluminum; Zinc; Air battery; Polystyrene sulfonate/graphene; Mn3O4/Craphene; Discharge
资金
- Natural Science Foundation of Henan Province [182300410173]
- Chinese 02 Special Fund [2017ZX02408003]
- Chinese 1000 Plan for High Level Foreign Experts [WQ20154100278]
- National Natural Science Foundation [U1804146]
A polystyrene sulfonate/graphene-based NaOH electrolyte and a Mn3O4/graphene catalyst were prepared for fabricating and testing metal-air batteries with pure Al and Zn anodes. Electrochemical performances, corrosion rates and surface morphologies were investigated. The operating voltage, anodic utilization rate and energy density of the assembled aluminum-air battery are 1.167 V, 88% and 2546 Wh.Kg(-1), respectively. This overall performance is better than Al-air battery with 4 M NaOH solution and MnO2 catalyst. Apparently, polystyrene sodium sulfonate/graphene improves the conductivity of the solution and reduces the corrosion rate of aluminum anode, and Mn3O4/graphene reduces cathode polarization of air cathode. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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