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Engineering Solution-Processed Non-Crystalline Solid Electrolytes for Li Metal Batteries
[Image: see text] Non-crystalline Li-ion solid electrolytes (SEs), such as lithium phosphorus oxynitride, can uniquely enable high-rate solid-state battery operation over thousands of cycles in thin film form. However, they are typically produced by expensive and low throughput vacuum deposition, li...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9933431/ https://www.ncbi.nlm.nih.gov/pubmed/36818586 http://dx.doi.org/10.1021/acs.chemmater.2c03071 |
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author | Vadhva, Pooja Gill, Thomas E. Cruddos, Joshua H. Said, Samia Siniscalchi, Marco Narayanan, Sudarshan Pasta, Mauro Miller, Thomas S. Rettie, Alexander J. E. |
author_facet | Vadhva, Pooja Gill, Thomas E. Cruddos, Joshua H. Said, Samia Siniscalchi, Marco Narayanan, Sudarshan Pasta, Mauro Miller, Thomas S. Rettie, Alexander J. E. |
author_sort | Vadhva, Pooja |
collection | PubMed |
description | [Image: see text] Non-crystalline Li-ion solid electrolytes (SEs), such as lithium phosphorus oxynitride, can uniquely enable high-rate solid-state battery operation over thousands of cycles in thin film form. However, they are typically produced by expensive and low throughput vacuum deposition, limiting their wide application and study. Here, we report non-crystalline SEs of composition Li–Al–P–O (LAPO) with ionic conductivities > 10(–7) S cm(–1) at room temperature made by spin coating from aqueous solutions and subsequent annealing in air. Homogenous, dense, flat layers can be synthesized with submicrometer thickness at temperatures as low as 230 °C. Control of the composition is shown to significantly affect the ionic conductivity, with increased Li and decreased P content being optimal, while higher annealing temperatures result in decreased ionic conductivity. Activation energy analysis reveals a Li-ion hopping barrier of ≈0.4 eV. Additionally, these SEs exhibit low room temperature electronic conductivity (< 10(–11) S cm(–1)) and a moderate Young’s modulus of ≈54 GPa, which may be beneficial in preventing Li dendrite formation. In contact with Li metal, LAPO is found to form a stable but high impedance passivation layer comprised of Al metal, Li–P, and Li–O species. These findings should be of value when engineering non-crystalline SEs for Li-metal batteries with high energy and power densities. |
format | Online Article Text |
id | pubmed-9933431 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-99334312023-02-17 Engineering Solution-Processed Non-Crystalline Solid Electrolytes for Li Metal Batteries Vadhva, Pooja Gill, Thomas E. Cruddos, Joshua H. Said, Samia Siniscalchi, Marco Narayanan, Sudarshan Pasta, Mauro Miller, Thomas S. Rettie, Alexander J. E. Chem Mater [Image: see text] Non-crystalline Li-ion solid electrolytes (SEs), such as lithium phosphorus oxynitride, can uniquely enable high-rate solid-state battery operation over thousands of cycles in thin film form. However, they are typically produced by expensive and low throughput vacuum deposition, limiting their wide application and study. Here, we report non-crystalline SEs of composition Li–Al–P–O (LAPO) with ionic conductivities > 10(–7) S cm(–1) at room temperature made by spin coating from aqueous solutions and subsequent annealing in air. Homogenous, dense, flat layers can be synthesized with submicrometer thickness at temperatures as low as 230 °C. Control of the composition is shown to significantly affect the ionic conductivity, with increased Li and decreased P content being optimal, while higher annealing temperatures result in decreased ionic conductivity. Activation energy analysis reveals a Li-ion hopping barrier of ≈0.4 eV. Additionally, these SEs exhibit low room temperature electronic conductivity (< 10(–11) S cm(–1)) and a moderate Young’s modulus of ≈54 GPa, which may be beneficial in preventing Li dendrite formation. In contact with Li metal, LAPO is found to form a stable but high impedance passivation layer comprised of Al metal, Li–P, and Li–O species. These findings should be of value when engineering non-crystalline SEs for Li-metal batteries with high energy and power densities. American Chemical Society 2023-01-18 /pmc/articles/PMC9933431/ /pubmed/36818586 http://dx.doi.org/10.1021/acs.chemmater.2c03071 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Vadhva, Pooja Gill, Thomas E. Cruddos, Joshua H. Said, Samia Siniscalchi, Marco Narayanan, Sudarshan Pasta, Mauro Miller, Thomas S. Rettie, Alexander J. E. Engineering Solution-Processed Non-Crystalline Solid Electrolytes for Li Metal Batteries |
title | Engineering Solution-Processed Non-Crystalline Solid
Electrolytes for Li Metal Batteries |
title_full | Engineering Solution-Processed Non-Crystalline Solid
Electrolytes for Li Metal Batteries |
title_fullStr | Engineering Solution-Processed Non-Crystalline Solid
Electrolytes for Li Metal Batteries |
title_full_unstemmed | Engineering Solution-Processed Non-Crystalline Solid
Electrolytes for Li Metal Batteries |
title_short | Engineering Solution-Processed Non-Crystalline Solid
Electrolytes for Li Metal Batteries |
title_sort | engineering solution-processed non-crystalline solid
electrolytes for li metal batteries |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9933431/ https://www.ncbi.nlm.nih.gov/pubmed/36818586 http://dx.doi.org/10.1021/acs.chemmater.2c03071 |
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