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MCM-41/PVA Composite as a Separator for Zinc–Air Batteries

Membrane separators are one of the critical components in zinc–air batteries (ZABs). In the control of mass transfer, and hence, electrochemical reaction, membrane separators have an important role to play. This work addresses the issue of battery performance in a ZAB via a new composite membrane se...

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Detalles Bibliográficos
Autores principales: Nanthapong, Sirinuch, Kheawhom, Soorathep, Klaysom, Chalida
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7582340/
https://www.ncbi.nlm.nih.gov/pubmed/32992723
http://dx.doi.org/10.3390/ijms21197052
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author Nanthapong, Sirinuch
Kheawhom, Soorathep
Klaysom, Chalida
author_facet Nanthapong, Sirinuch
Kheawhom, Soorathep
Klaysom, Chalida
author_sort Nanthapong, Sirinuch
collection PubMed
description Membrane separators are one of the critical components in zinc–air batteries (ZABs). In the control of mass transfer, and hence, electrochemical reaction, membrane separators have an important role to play. This work addresses the issue of battery performance in a ZAB via a new composite membrane separator based on polyvinyl alcohol (PVA). To enhance the electrolyte uptake and ionic conductivity, mesoporous Mobil Composition of Matter No. 41 (MCM-41) is incorporated as a filler in the membrane while maintaining its integrity. The presence of MCM-41 is seen to reduce the number of cycles of secondary ZABs due to the uninvited drawbacks of increased zincate crossover and reduced triple phase boundary at the air cathode, which is pivotal for oxygen reduction reaction. Overall, results suggest that the application of the MCM-41/PVA composite has the potential for use as a separator in high-capacity primary ZABs.
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spelling pubmed-75823402020-10-28 MCM-41/PVA Composite as a Separator for Zinc–Air Batteries Nanthapong, Sirinuch Kheawhom, Soorathep Klaysom, Chalida Int J Mol Sci Article Membrane separators are one of the critical components in zinc–air batteries (ZABs). In the control of mass transfer, and hence, electrochemical reaction, membrane separators have an important role to play. This work addresses the issue of battery performance in a ZAB via a new composite membrane separator based on polyvinyl alcohol (PVA). To enhance the electrolyte uptake and ionic conductivity, mesoporous Mobil Composition of Matter No. 41 (MCM-41) is incorporated as a filler in the membrane while maintaining its integrity. The presence of MCM-41 is seen to reduce the number of cycles of secondary ZABs due to the uninvited drawbacks of increased zincate crossover and reduced triple phase boundary at the air cathode, which is pivotal for oxygen reduction reaction. Overall, results suggest that the application of the MCM-41/PVA composite has the potential for use as a separator in high-capacity primary ZABs. MDPI 2020-09-25 /pmc/articles/PMC7582340/ /pubmed/32992723 http://dx.doi.org/10.3390/ijms21197052 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Nanthapong, Sirinuch
Kheawhom, Soorathep
Klaysom, Chalida
MCM-41/PVA Composite as a Separator for Zinc–Air Batteries
title MCM-41/PVA Composite as a Separator for Zinc–Air Batteries
title_full MCM-41/PVA Composite as a Separator for Zinc–Air Batteries
title_fullStr MCM-41/PVA Composite as a Separator for Zinc–Air Batteries
title_full_unstemmed MCM-41/PVA Composite as a Separator for Zinc–Air Batteries
title_short MCM-41/PVA Composite as a Separator for Zinc–Air Batteries
title_sort mcm-41/pva composite as a separator for zinc–air batteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7582340/
https://www.ncbi.nlm.nih.gov/pubmed/32992723
http://dx.doi.org/10.3390/ijms21197052
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