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Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries
Nickel hydride batteries (Ni-MH) are known of their good performance and high reliability at temperatures below 0 °C, which is significantly dependent on electrolyte composition. Here we present the low temperature characteristics of pristine AB5-type alloy, LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45), deter...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947314/ https://www.ncbi.nlm.nih.gov/pubmed/31888168 http://dx.doi.org/10.3390/ma12244220 |
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author | Karwowska, Malgorzata Fijalkowski, Karol J. Czerwiński, Andrzej A. |
author_facet | Karwowska, Malgorzata Fijalkowski, Karol J. Czerwiński, Andrzej A. |
author_sort | Karwowska, Malgorzata |
collection | PubMed |
description | Nickel hydride batteries (Ni-MH) are known of their good performance and high reliability at temperatures below 0 °C, which is significantly dependent on electrolyte composition. Here we present the low temperature characteristics of pristine AB5-type alloy, LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45), determined in various alkali metal hydroxide solutions. We found that the combination of KOH with NaOH showed a significant effect of enhancement of low temperature performance of the electrode material and diffusion of hydrogen in the alloy. This 6M binary mixed NaOH/KOH electrolyte, comprising 4M KOH component and 2M NaOH component, made it possible to maintain 81.7% and 61.0% of maximum capacity at −20 °C and −30 °C, respectively, enhancing the hydrogen storage properties of the alloy after reheating to room temperature. |
format | Online Article Text |
id | pubmed-6947314 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-69473142020-01-13 Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries Karwowska, Malgorzata Fijalkowski, Karol J. Czerwiński, Andrzej A. Materials (Basel) Article Nickel hydride batteries (Ni-MH) are known of their good performance and high reliability at temperatures below 0 °C, which is significantly dependent on electrolyte composition. Here we present the low temperature characteristics of pristine AB5-type alloy, LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45), determined in various alkali metal hydroxide solutions. We found that the combination of KOH with NaOH showed a significant effect of enhancement of low temperature performance of the electrode material and diffusion of hydrogen in the alloy. This 6M binary mixed NaOH/KOH electrolyte, comprising 4M KOH component and 2M NaOH component, made it possible to maintain 81.7% and 61.0% of maximum capacity at −20 °C and −30 °C, respectively, enhancing the hydrogen storage properties of the alloy after reheating to room temperature. MDPI 2019-12-16 /pmc/articles/PMC6947314/ /pubmed/31888168 http://dx.doi.org/10.3390/ma12244220 Text en © 2019 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 Karwowska, Malgorzata Fijalkowski, Karol J. Czerwiński, Andrzej A. Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries |
title | Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries |
title_full | Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries |
title_fullStr | Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries |
title_full_unstemmed | Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries |
title_short | Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni(4.1)Al(0.3)Mn(0.4)Co(0.45) for Ni-MH Batteries |
title_sort | low temperature characteristics of hydrogen storage alloy lamm-ni(4.1)al(0.3)mn(0.4)co(0.45) for ni-mh batteries |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947314/ https://www.ncbi.nlm.nih.gov/pubmed/31888168 http://dx.doi.org/10.3390/ma12244220 |
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