Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Jiang, Wen, Dong, Lingling, Liu, Shuanghui, Ai, Bing, Zhao, Shuangshuang, Zhang, Weimin, Pan, Kefeng, Zhang, Lipeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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
_version_ 1784734098162450432
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
work_keys_str_mv AT jiangwen improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer
AT donglingling improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer
AT liushuanghui improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer
AT aibing improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer
AT zhaoshuangshuang improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer
AT zhangweimin improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer
AT pankefeng improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer
AT zhanglipeng improvementoftheinterfacebetweenthelithiumanodeandagarnettypesolidelectrolyteoflithiumbatteriesusinganaluminumnitridelayer