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Efficient Biorenewable Membranes in Lithium-Oxygen Batteries
Lithium-oxygen batteries, with their very high energy density (3500 Wh kg(−1)), could represent a real breakthrough in the envisioned strategies towards more efficient energy storage solutions for a less and less carbonated energy mix. However, the problems associated with this technology are numero...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10420843/ https://www.ncbi.nlm.nih.gov/pubmed/37571076 http://dx.doi.org/10.3390/polym15153182 |
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author | Amici, Julia Banaudi, Giorgio Longo, Mattia Gandolfo, Matteo Zanon, Michael Francia, Carlotta Bodoardo, Silvia Sangermano, Marco |
author_facet | Amici, Julia Banaudi, Giorgio Longo, Mattia Gandolfo, Matteo Zanon, Michael Francia, Carlotta Bodoardo, Silvia Sangermano, Marco |
author_sort | Amici, Julia |
collection | PubMed |
description | Lithium-oxygen batteries, with their very high energy density (3500 Wh kg(−1)), could represent a real breakthrough in the envisioned strategies towards more efficient energy storage solutions for a less and less carbonated energy mix. However, the problems associated with this technology are numerous. A first one is linked to the high reactivity of the lithium metal anode, while a second one is linked to the highly oxidative environment created by the cell’s O(2) saturation. Keeping in mind the necessity for greener materials in future energy storage solutions, in this work an innovative lithium protective membrane is prepared based on chitosan, a polysaccharide obtained from the deacetylation reaction of chitin. Chitosan was methacrylated through a simple, one-step reaction in water and then cross-linked by UV-induced radical polymerization. The obtained membranes were successively activated in liquid electrolyte and used as a lithium protection layer. The cells prepared with protected lithium were able to reach a higher full discharge capacity, and the chitosan’s ability to slow down degradation processes was verified by post-mortem analyses. Moreover, in long cycling conditions, the protected lithium cell performed more than 40 cycles at 0.1 mA cm(−2), at a fixed capacity of 0.5 mAh cm(−2), retaining 100% coulombic efficiency, which is more than twice the lifespan of the bare lithium cell. |
format | Online Article Text |
id | pubmed-10420843 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104208432023-08-12 Efficient Biorenewable Membranes in Lithium-Oxygen Batteries Amici, Julia Banaudi, Giorgio Longo, Mattia Gandolfo, Matteo Zanon, Michael Francia, Carlotta Bodoardo, Silvia Sangermano, Marco Polymers (Basel) Article Lithium-oxygen batteries, with their very high energy density (3500 Wh kg(−1)), could represent a real breakthrough in the envisioned strategies towards more efficient energy storage solutions for a less and less carbonated energy mix. However, the problems associated with this technology are numerous. A first one is linked to the high reactivity of the lithium metal anode, while a second one is linked to the highly oxidative environment created by the cell’s O(2) saturation. Keeping in mind the necessity for greener materials in future energy storage solutions, in this work an innovative lithium protective membrane is prepared based on chitosan, a polysaccharide obtained from the deacetylation reaction of chitin. Chitosan was methacrylated through a simple, one-step reaction in water and then cross-linked by UV-induced radical polymerization. The obtained membranes were successively activated in liquid electrolyte and used as a lithium protection layer. The cells prepared with protected lithium were able to reach a higher full discharge capacity, and the chitosan’s ability to slow down degradation processes was verified by post-mortem analyses. Moreover, in long cycling conditions, the protected lithium cell performed more than 40 cycles at 0.1 mA cm(−2), at a fixed capacity of 0.5 mAh cm(−2), retaining 100% coulombic efficiency, which is more than twice the lifespan of the bare lithium cell. MDPI 2023-07-26 /pmc/articles/PMC10420843/ /pubmed/37571076 http://dx.doi.org/10.3390/polym15153182 Text en © 2023 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 Amici, Julia Banaudi, Giorgio Longo, Mattia Gandolfo, Matteo Zanon, Michael Francia, Carlotta Bodoardo, Silvia Sangermano, Marco Efficient Biorenewable Membranes in Lithium-Oxygen Batteries |
title | Efficient Biorenewable Membranes in Lithium-Oxygen Batteries |
title_full | Efficient Biorenewable Membranes in Lithium-Oxygen Batteries |
title_fullStr | Efficient Biorenewable Membranes in Lithium-Oxygen Batteries |
title_full_unstemmed | Efficient Biorenewable Membranes in Lithium-Oxygen Batteries |
title_short | Efficient Biorenewable Membranes in Lithium-Oxygen Batteries |
title_sort | efficient biorenewable membranes in lithium-oxygen batteries |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10420843/ https://www.ncbi.nlm.nih.gov/pubmed/37571076 http://dx.doi.org/10.3390/polym15153182 |
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