Cargando…

Research of Nanomaterials as Electrodes for Electrochemical Energy Storage

This paper has experimentally proved that hydrogen accumulates in large quantities in metal-ceramic and pocket electrodes of alkaline batteries during their operation. Hydrogen accumulates in the electrodes in an atomic form. After the release of hydrogen from the electrodes, a powerful exothermic r...

Descripción completa

Detalles Bibliográficos
Autores principales: Yazvinskaya, Nataliya N., Lipkin, Mikhail S., Galushkin, Nikolay E., Galushkin, Dmitriy N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8837994/
https://www.ncbi.nlm.nih.gov/pubmed/35164102
http://dx.doi.org/10.3390/molecules27030837
_version_ 1784650016455917568
author Yazvinskaya, Nataliya N.
Lipkin, Mikhail S.
Galushkin, Nikolay E.
Galushkin, Dmitriy N.
author_facet Yazvinskaya, Nataliya N.
Lipkin, Mikhail S.
Galushkin, Nikolay E.
Galushkin, Dmitriy N.
author_sort Yazvinskaya, Nataliya N.
collection PubMed
description This paper has experimentally proved that hydrogen accumulates in large quantities in metal-ceramic and pocket electrodes of alkaline batteries during their operation. Hydrogen accumulates in the electrodes in an atomic form. After the release of hydrogen from the electrodes, a powerful exothermic reaction of atomic hydrogen recombination with a large energy release occurs. This exothermic reaction is the cause of thermal runaway in alkaline batteries. For the KSL-15 battery, the gravimetric capacity of sintered nickel matrix of the oxide-nickel electrode, as hydrogen storage, is 20.2 wt%, and cadmium electrode is 11.5 wt%. The stored energy density in the metal-ceramic matrix of the oxide-nickel electrode of the battery KSL-15 is 44 kJ/g, and in the cadmium electrode it is 25 kJ/g. The similar values for the KPL-14 battery are as follows. The gravimetric capacity of the active substance of the pocket oxide-nickel electrode, as a hydrogen storage, is 22 wt%, and the cadmium electrode is 16.9 wt%. The density of the stored energy in the active substance oxide-nickel electrode is 48 kJ/g, and in the active substance of the cadmium electrode it is 36.8 kJ/g. The obtained results of the accumulation of hydrogen energy in the electrodes by the electrochemical method are three times higher than any previously obtained results using the traditional thermochemical method.
format Online
Article
Text
id pubmed-8837994
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-88379942022-02-13 Research of Nanomaterials as Electrodes for Electrochemical Energy Storage Yazvinskaya, Nataliya N. Lipkin, Mikhail S. Galushkin, Nikolay E. Galushkin, Dmitriy N. Molecules Article This paper has experimentally proved that hydrogen accumulates in large quantities in metal-ceramic and pocket electrodes of alkaline batteries during their operation. Hydrogen accumulates in the electrodes in an atomic form. After the release of hydrogen from the electrodes, a powerful exothermic reaction of atomic hydrogen recombination with a large energy release occurs. This exothermic reaction is the cause of thermal runaway in alkaline batteries. For the KSL-15 battery, the gravimetric capacity of sintered nickel matrix of the oxide-nickel electrode, as hydrogen storage, is 20.2 wt%, and cadmium electrode is 11.5 wt%. The stored energy density in the metal-ceramic matrix of the oxide-nickel electrode of the battery KSL-15 is 44 kJ/g, and in the cadmium electrode it is 25 kJ/g. The similar values for the KPL-14 battery are as follows. The gravimetric capacity of the active substance of the pocket oxide-nickel electrode, as a hydrogen storage, is 22 wt%, and the cadmium electrode is 16.9 wt%. The density of the stored energy in the active substance oxide-nickel electrode is 48 kJ/g, and in the active substance of the cadmium electrode it is 36.8 kJ/g. The obtained results of the accumulation of hydrogen energy in the electrodes by the electrochemical method are three times higher than any previously obtained results using the traditional thermochemical method. MDPI 2022-01-27 /pmc/articles/PMC8837994/ /pubmed/35164102 http://dx.doi.org/10.3390/molecules27030837 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yazvinskaya, Nataliya N.
Lipkin, Mikhail S.
Galushkin, Nikolay E.
Galushkin, Dmitriy N.
Research of Nanomaterials as Electrodes for Electrochemical Energy Storage
title Research of Nanomaterials as Electrodes for Electrochemical Energy Storage
title_full Research of Nanomaterials as Electrodes for Electrochemical Energy Storage
title_fullStr Research of Nanomaterials as Electrodes for Electrochemical Energy Storage
title_full_unstemmed Research of Nanomaterials as Electrodes for Electrochemical Energy Storage
title_short Research of Nanomaterials as Electrodes for Electrochemical Energy Storage
title_sort research of nanomaterials as electrodes for electrochemical energy storage
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8837994/
https://www.ncbi.nlm.nih.gov/pubmed/35164102
http://dx.doi.org/10.3390/molecules27030837
work_keys_str_mv AT yazvinskayanataliyan researchofnanomaterialsaselectrodesforelectrochemicalenergystorage
AT lipkinmikhails researchofnanomaterialsaselectrodesforelectrochemicalenergystorage
AT galushkinnikolaye researchofnanomaterialsaselectrodesforelectrochemicalenergystorage
AT galushkindmitriyn researchofnanomaterialsaselectrodesforelectrochemicalenergystorage