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Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer
The next generation of all-solid-state batteries can feature battery safety that is unparalleled among conventional liquid batteries. The garnet-type solid-state electrolyte Li(7)La(3)Zr(2)O(12) (LLZO), in particular, is widely studied because of its high Li-ion conductivity and stability in air. Ho...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9227169/ https://www.ncbi.nlm.nih.gov/pubmed/35745362 http://dx.doi.org/10.3390/nano12122023 |
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author | Jiang, Wen Dong, Lingling Liu, Shuanghui Ai, Bing Zhao, Shuangshuang Zhang, Weimin Pan, Kefeng Zhang, Lipeng |
author_facet | Jiang, Wen Dong, Lingling Liu, Shuanghui Ai, Bing Zhao, Shuangshuang Zhang, Weimin Pan, Kefeng Zhang, Lipeng |
author_sort | Jiang, Wen |
collection | PubMed |
description | The next generation of all-solid-state batteries can feature battery safety that is unparalleled among conventional liquid batteries. The garnet-type solid-state electrolyte Li(7)La(3)Zr(2)O(12) (LLZO), in particular, is widely studied because of its high Li-ion conductivity and stability in air. However, the poor interface-contact between Li and the electrolyte (garnet) severely limits the development of solid electrolytes. In this study, we synthesize cubic phase Li(6.4)La(3)Zr(1.4)Ta(0.6)O(12) (LLZTO) using a secondary sintering method. In addition, a thin aluminum nitride (AlN) layer is introduced between the metal (Li) and the solid electrolyte. Theoretical calculations show that AlN has a high affinity for Li. Furthermore, it is shown that the AlN coating can effectively reduce the interface impedance between Li and the solid electrolyte and improve the lithium-ion transport. The assembled symmetric Li cells can operate stably for more than 3600 h, unlike the symmetric cells without AlN coating, which short-circuited after only a few cycles. The hybrid solid-state battery with a modified layer, which is assembled using LiFePO(4) (LFP), still has a capacity of 120 mAh g(−1) after 200 cycles, with a capacity retention rate of 98%. This shows that the introduction of an AlN interlayer is very helpful to obtain a stable Li/solid-electrolyte interface, which improves the cycling stability of the battery. |
format | Online Article Text |
id | pubmed-9227169 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-92271692022-06-25 Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer Jiang, Wen Dong, Lingling Liu, Shuanghui Ai, Bing Zhao, Shuangshuang Zhang, Weimin Pan, Kefeng Zhang, Lipeng Nanomaterials (Basel) Article The next generation of all-solid-state batteries can feature battery safety that is unparalleled among conventional liquid batteries. The garnet-type solid-state electrolyte Li(7)La(3)Zr(2)O(12) (LLZO), in particular, is widely studied because of its high Li-ion conductivity and stability in air. However, the poor interface-contact between Li and the electrolyte (garnet) severely limits the development of solid electrolytes. In this study, we synthesize cubic phase Li(6.4)La(3)Zr(1.4)Ta(0.6)O(12) (LLZTO) using a secondary sintering method. In addition, a thin aluminum nitride (AlN) layer is introduced between the metal (Li) and the solid electrolyte. Theoretical calculations show that AlN has a high affinity for Li. Furthermore, it is shown that the AlN coating can effectively reduce the interface impedance between Li and the solid electrolyte and improve the lithium-ion transport. The assembled symmetric Li cells can operate stably for more than 3600 h, unlike the symmetric cells without AlN coating, which short-circuited after only a few cycles. The hybrid solid-state battery with a modified layer, which is assembled using LiFePO(4) (LFP), still has a capacity of 120 mAh g(−1) after 200 cycles, with a capacity retention rate of 98%. This shows that the introduction of an AlN interlayer is very helpful to obtain a stable Li/solid-electrolyte interface, which improves the cycling stability of the battery. MDPI 2022-06-12 /pmc/articles/PMC9227169/ /pubmed/35745362 http://dx.doi.org/10.3390/nano12122023 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 Jiang, Wen Dong, Lingling Liu, Shuanghui Ai, Bing Zhao, Shuangshuang Zhang, Weimin Pan, Kefeng Zhang, Lipeng Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer |
title | Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer |
title_full | Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer |
title_fullStr | Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer |
title_full_unstemmed | Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer |
title_short | Improvement of the Interface between the Lithium Anode and a Garnet-Type Solid Electrolyte of Lithium Batteries Using an Aluminum-Nitride Layer |
title_sort | improvement of the interface between the lithium anode and a garnet-type solid electrolyte of lithium batteries using an aluminum-nitride layer |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9227169/ https://www.ncbi.nlm.nih.gov/pubmed/35745362 http://dx.doi.org/10.3390/nano12122023 |
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