Photo-Charging a Zinc-Air Battery Using a Nb[sub.2]O[sub.5]-CdS Photoelectrode

Integrating a photoelectrode into a zinc-air battery is a promising approach to reducing the overpotential required for charging a metal-air battery by using solar energy. In this work, a photo-fuel cell employing a Nb[sub.2]O[sub.5]/CdS photoanode and a Zn foil as a counter-electrode worked as a ph...

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Bibliographic Details
Published in:Catalysts 2022-10, Vol.12 (10)
Main Authors: Andrade, Tatiana S, Neto, Antero R. S, Nogueira, Francisco G. E, Oliveira, Luiz C. A, Pereira, Márcio C, Lianos, Panagiotis
Format: Article
Language:English
Subjects:
Solar energy
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Summary:Integrating a photoelectrode into a zinc-air battery is a promising approach to reducing the overpotential required for charging a metal-air battery by using solar energy. In this work, a photo-fuel cell employing a Nb[sub.2]O[sub.5]/CdS photoanode and a Zn foil as a counter-electrode worked as a photoelectrochemical battery that saves up to 1.4 V for battery charging. This is the first time a Nb[sub.2]O[sub.5]-based photoelectrode is reported as a photoanode in a metal-air battery, and the achieved gain is one of the top results reported so far. Furthermore, the cell consumed an organic fuel, supporting the idea of using biomass wastes as a power source for sunlight-assisted charging of metal-air batteries. Thus, this device provides additional environmental benefits and contributes to technologies integrating solar energy conversion and storage.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal12101240