An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries

In order to bridge the gap between theoretical and practical energy density in sodium oxygen batteries challenges need to be overcome. In this work, four commercial air cathodes were selected, and the impacts of their morphologies, structure and chemistry on their performance with a pyrrolidinium-ba...

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Autores principales: Ha, The An, Pozo-Gonzalo, Cristina, Nairn, Kate, MacFarlane, Douglas R., Forsyth, Maria, Howlett, Patrick C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7188893/
https://www.ncbi.nlm.nih.gov/pubmed/32346075
http://dx.doi.org/10.1038/s41598-020-63473-y
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author Ha, The An
Pozo-Gonzalo, Cristina
Nairn, Kate
MacFarlane, Douglas R.
Forsyth, Maria
Howlett, Patrick C.
author_facet Ha, The An
Pozo-Gonzalo, Cristina
Nairn, Kate
MacFarlane, Douglas R.
Forsyth, Maria
Howlett, Patrick C.
author_sort Ha, The An
collection PubMed
description In order to bridge the gap between theoretical and practical energy density in sodium oxygen batteries challenges need to be overcome. In this work, four commercial air cathodes were selected, and the impacts of their morphologies, structure and chemistry on their performance with a pyrrolidinium-based ionic liquid electrolyte are evaluated. The highest discharge capacity was found for a cathode with a pore size ca. 6 nm; this was over 100 times greater than that delivered by a cathode with a pore size less than 2 nm. The air cathode with the highest specific surface area and the presence of a microporous layer (BC39) exhibited the highest specific capacity (0.53 mAh cm(−2)).
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spelling pubmed-71888932020-05-04 An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries Ha, The An Pozo-Gonzalo, Cristina Nairn, Kate MacFarlane, Douglas R. Forsyth, Maria Howlett, Patrick C. Sci Rep Article In order to bridge the gap between theoretical and practical energy density in sodium oxygen batteries challenges need to be overcome. In this work, four commercial air cathodes were selected, and the impacts of their morphologies, structure and chemistry on their performance with a pyrrolidinium-based ionic liquid electrolyte are evaluated. The highest discharge capacity was found for a cathode with a pore size ca. 6 nm; this was over 100 times greater than that delivered by a cathode with a pore size less than 2 nm. The air cathode with the highest specific surface area and the presence of a microporous layer (BC39) exhibited the highest specific capacity (0.53 mAh cm(−2)). Nature Publishing Group UK 2020-04-28 /pmc/articles/PMC7188893/ /pubmed/32346075 http://dx.doi.org/10.1038/s41598-020-63473-y Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Ha, The An
Pozo-Gonzalo, Cristina
Nairn, Kate
MacFarlane, Douglas R.
Forsyth, Maria
Howlett, Patrick C.
An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
title An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
title_full An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
title_fullStr An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
title_full_unstemmed An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
title_short An investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
title_sort investigation of commercial carbon air cathode structure in ionic liquid based sodium oxygen batteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7188893/
https://www.ncbi.nlm.nih.gov/pubmed/32346075
http://dx.doi.org/10.1038/s41598-020-63473-y
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