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Excellent performance of aluminium anode based on dithiothreitol additives for alkaline aluminium/air batteries

journal contribution
posted on 2020-03-15, 00:00 authored by H Yang, X Li, Y Wang, L Gao, J Li, D Zhang, Tong Lin
For alkaline aluminium/air battery, two original polyol compounds of butantetraol and dithiothreitol are proposed to act as electrolyte additives. It shows that they can retard the self-corrosion of aluminium anode, and enhance its performance effectively. Dithiothreitol has a stronger ability to increase the discharge capacity than butantetraol. The improvement is mainly attributed to the suppression of the side reaction of hydrogen evolution. The formation of the six-membered ring complexes formed by dithiothreitol and aluminium ions is certified by the Fourier transform infrared spectroscopy (FT-IR). The surface morphology and composition of the aluminium anode are characterised by the scanning electron microscope (SEM) and the X-ray photoelectron spectroscopy (XPS) analysis. It shows that dithiothreitol can form a uniform and stable protective layer through dynamic covalent bonds on aluminium anode surface.

History

Journal

Journal of Power Sources

Volume

452

Article number

227785

Pagination

1 - 10

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0378-7753

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2020, Elsevier B.V.