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On the feasibility of all-solid-state batteries with LLZO as a single electrolyte
Replacement of Li-ion liquid-state electrolytes by solid-state counterparts in a Li-ion battery (LIB) is a major research objective as well as an urgent priority for the industry, as it enables the use of a Li metal anode and provides new opportunities to realize safe, non-flammable, and temperature...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8782839/ https://www.ncbi.nlm.nih.gov/pubmed/35064183 http://dx.doi.org/10.1038/s41598-022-05141-x |
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author | Kravchyk, Kostiantyn V. Karabay, Dogan Tarik Kovalenko, Maksym V. |
author_facet | Kravchyk, Kostiantyn V. Karabay, Dogan Tarik Kovalenko, Maksym V. |
author_sort | Kravchyk, Kostiantyn V. |
collection | PubMed |
description | Replacement of Li-ion liquid-state electrolytes by solid-state counterparts in a Li-ion battery (LIB) is a major research objective as well as an urgent priority for the industry, as it enables the use of a Li metal anode and provides new opportunities to realize safe, non-flammable, and temperature-resilient batteries. Among the plethora of solid-state electrolytes (SSEs) investigated, garnet-type Li-ion electrolytes based on cubic Li(7)La(3)Zr(2)O(12) (LLZO) are considered the most appealing candidates for the development of future solid-state batteries because of their low electronic conductivity of ca. 10(−8) S cm(−1) (RT) and a wide electrochemical operation window of 0–6 V vs. Li(+)/Li. However, high LLZO density (5.1 g cm(−3)) and its lower level of Li-ion conductivity (up to 1 mS cm(−1) at RT) compared to liquid electrolytes (1.28 g cm(−3); ca. 10 mS cm(−1) at RT) still raise the question as to the feasibility of using solely LLZO as an electrolyte for achieving competitive energy and power densities. In this work, we analyzed the energy densities of Li-garnet all-solid-state batteries based solely on LLZO SSE by modeling their Ragone plots using LiCoO(2) as the model cathode material. This assessment allowed us to identify values of the LLZO thickness, cathode areal capacity, and LLZO content in the solid-state cathode required to match the energy density of conventional lithium-ion batteries (ca. 180 Wh kg(−1) and 497 Wh L(−1)) at the power densities of 200 W kg(−1) and 600 W L(−1), corresponding to ca. 1 h of battery discharge time (1C). We then discuss key challenges in the practical deployment of LLZO SSE in the fabrication of Li-garnet all-solid-state batteries. |
format | Online Article Text |
id | pubmed-8782839 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-87828392022-01-24 On the feasibility of all-solid-state batteries with LLZO as a single electrolyte Kravchyk, Kostiantyn V. Karabay, Dogan Tarik Kovalenko, Maksym V. Sci Rep Article Replacement of Li-ion liquid-state electrolytes by solid-state counterparts in a Li-ion battery (LIB) is a major research objective as well as an urgent priority for the industry, as it enables the use of a Li metal anode and provides new opportunities to realize safe, non-flammable, and temperature-resilient batteries. Among the plethora of solid-state electrolytes (SSEs) investigated, garnet-type Li-ion electrolytes based on cubic Li(7)La(3)Zr(2)O(12) (LLZO) are considered the most appealing candidates for the development of future solid-state batteries because of their low electronic conductivity of ca. 10(−8) S cm(−1) (RT) and a wide electrochemical operation window of 0–6 V vs. Li(+)/Li. However, high LLZO density (5.1 g cm(−3)) and its lower level of Li-ion conductivity (up to 1 mS cm(−1) at RT) compared to liquid electrolytes (1.28 g cm(−3); ca. 10 mS cm(−1) at RT) still raise the question as to the feasibility of using solely LLZO as an electrolyte for achieving competitive energy and power densities. In this work, we analyzed the energy densities of Li-garnet all-solid-state batteries based solely on LLZO SSE by modeling their Ragone plots using LiCoO(2) as the model cathode material. This assessment allowed us to identify values of the LLZO thickness, cathode areal capacity, and LLZO content in the solid-state cathode required to match the energy density of conventional lithium-ion batteries (ca. 180 Wh kg(−1) and 497 Wh L(−1)) at the power densities of 200 W kg(−1) and 600 W L(−1), corresponding to ca. 1 h of battery discharge time (1C). We then discuss key challenges in the practical deployment of LLZO SSE in the fabrication of Li-garnet all-solid-state batteries. Nature Publishing Group UK 2022-01-21 /pmc/articles/PMC8782839/ /pubmed/35064183 http://dx.doi.org/10.1038/s41598-022-05141-x Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Kravchyk, Kostiantyn V. Karabay, Dogan Tarik Kovalenko, Maksym V. On the feasibility of all-solid-state batteries with LLZO as a single electrolyte |
title | On the feasibility of all-solid-state batteries with LLZO as a single electrolyte |
title_full | On the feasibility of all-solid-state batteries with LLZO as a single electrolyte |
title_fullStr | On the feasibility of all-solid-state batteries with LLZO as a single electrolyte |
title_full_unstemmed | On the feasibility of all-solid-state batteries with LLZO as a single electrolyte |
title_short | On the feasibility of all-solid-state batteries with LLZO as a single electrolyte |
title_sort | on the feasibility of all-solid-state batteries with llzo as a single electrolyte |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8782839/ https://www.ncbi.nlm.nih.gov/pubmed/35064183 http://dx.doi.org/10.1038/s41598-022-05141-x |
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