Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries

Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries

All-solid-state lithium-ion batteries raise the issue of high resistance at the interface between solid electrolyte and electrode materials that needs to be addressed. The article investigates the effect of a low-melting Li<sub>3</sub>BO<sub>3</sub> additive introduced into L...

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Autores principales: Evgeniya Il’ina, Svetlana Pershina, Boris Antonov, Alexander Pankratov
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
all-solid-state lithium-ion batteries
solid electrolytes
interface
LiCoO<sub>2</sub>
Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>
Technology
T
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Engineering (General). Civil engineering (General)
TA1-2040
Microscopy
QH201-278.5
Descriptive and experimental mechanics
QC120-168.85
Acceso en línea:https://doaj.org/article/98f6d6118ccb4a59900bafdab813b501
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spelling oai:doaj.org-article:98f6d6118ccb4a59900bafdab813b5012021-11-25T18:16:20ZImpact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries10.3390/ma142270991996-1944https://doaj.org/article/98f6d6118ccb4a59900bafdab813b5012021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7099https://doaj.org/toc/1996-1944All-solid-state lithium-ion batteries raise the issue of high resistance at the interface between solid electrolyte and electrode materials that needs to be addressed. The article investigates the effect of a low-melting Li<sub>3</sub>BO<sub>3</sub> additive introduced into LiCoO<sub>2</sub>- and Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>-based composite electrodes on the interface resistance with a Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> solid electrolyte. According to DSC analysis, interaction in the studied mixtures with Li<sub>3</sub>BO<sub>3</sub> begins at 768 and 725 °C for LiCoO<sub>2</sub> and Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>, respectively. The resistance of half-cells with different contents of Li<sub>3</sub>BO<sub>3</sub> additive after heating at 700 and 720 °C was studied by impedance spectroscopy in the temperature range of 25–340 °C. It was established that the introduction of 5 wt% Li<sub>3</sub>BO<sub>3</sub> into LiCoO<sub>2</sub> and heat treatment at 720 °C led to the greatest decrease in the interface resistance from 260 to 40 Ω cm<sup>2</sup> at 300 °C in comparison with pure LiCoO<sub>2</sub>. An SEM study demonstrated that the addition of the low-melting component to electrode mass gave better contact with ceramics. It was shown that an increase in the annealing temperature of unmodified cells with Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> led to a decrease in the interface resistance. It was found that the interface resistance between composite anodes and solid electrolyte had lower values compared to Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>|Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> half-cells. It was established that the resistance of cells with the Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>/Li<sub>3</sub>BO<sub>3</sub> composite anode annealed at 720 °C decreased from 97.2 (<i>x</i> = 0) to 7.0 kΩ cm<sup>2</sup> (<i>x</i> = 5 wt% Li<sub>3</sub>BO<sub>3</sub>) at 150 °C.Evgeniya Il’inaSvetlana PershinaBoris AntonovAlexander PankratovMDPI AGarticleall-solid-state lithium-ion batteriessolid electrolytesinterfaceLiCoO<sub>2</sub>Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>TechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7099, p 7099 (2021)
institution DOAJ
collection DOAJ
language EN
topic all-solid-state lithium-ion batteries
solid electrolytes
interface
LiCoO<sub>2</sub>
Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>
Technology
T
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Engineering (General). Civil engineering (General)
TA1-2040
Microscopy
QH201-278.5
Descriptive and experimental mechanics
QC120-168.85
spellingShingle all-solid-state lithium-ion batteries
solid electrolytes
interface
LiCoO<sub>2</sub>
Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>
Technology
T
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Engineering (General). Civil engineering (General)
TA1-2040
Microscopy
QH201-278.5
Descriptive and experimental mechanics
QC120-168.85
Evgeniya Il’ina
Svetlana Pershina
Boris Antonov
Alexander Pankratov
Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries
description All-solid-state lithium-ion batteries raise the issue of high resistance at the interface between solid electrolyte and electrode materials that needs to be addressed. The article investigates the effect of a low-melting Li<sub>3</sub>BO<sub>3</sub> additive introduced into LiCoO<sub>2</sub>- and Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>-based composite electrodes on the interface resistance with a Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> solid electrolyte. According to DSC analysis, interaction in the studied mixtures with Li<sub>3</sub>BO<sub>3</sub> begins at 768 and 725 °C for LiCoO<sub>2</sub> and Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>, respectively. The resistance of half-cells with different contents of Li<sub>3</sub>BO<sub>3</sub> additive after heating at 700 and 720 °C was studied by impedance spectroscopy in the temperature range of 25–340 °C. It was established that the introduction of 5 wt% Li<sub>3</sub>BO<sub>3</sub> into LiCoO<sub>2</sub> and heat treatment at 720 °C led to the greatest decrease in the interface resistance from 260 to 40 Ω cm<sup>2</sup> at 300 °C in comparison with pure LiCoO<sub>2</sub>. An SEM study demonstrated that the addition of the low-melting component to electrode mass gave better contact with ceramics. It was shown that an increase in the annealing temperature of unmodified cells with Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> led to a decrease in the interface resistance. It was found that the interface resistance between composite anodes and solid electrolyte had lower values compared to Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>|Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> half-cells. It was established that the resistance of cells with the Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>/Li<sub>3</sub>BO<sub>3</sub> composite anode annealed at 720 °C decreased from 97.2 (<i>x</i> = 0) to 7.0 kΩ cm<sup>2</sup> (<i>x</i> = 5 wt% Li<sub>3</sub>BO<sub>3</sub>) at 150 °C.
format article
author Evgeniya Il’ina
Svetlana Pershina
Boris Antonov
Alexander Pankratov
author_facet Evgeniya Il’ina
Svetlana Pershina
Boris Antonov
Alexander Pankratov
author_sort Evgeniya Il’ina
title Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries
title_short Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries
title_full Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries
title_fullStr Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries
title_full_unstemmed Impact of Li<sub>3</sub>BO<sub>3</sub> Addition on Solid Electrode-Solid Electrolyte Interface in All-Solid-State Batteries
title_sort impact of li<sub>3</sub>bo<sub>3</sub> addition on solid electrode-solid electrolyte interface in all-solid-state batteries
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/98f6d6118ccb4a59900bafdab813b501
work_keys_str_mv AT evgeniyailina impactoflisub3subbosub3subadditiononsolidelectrodesolidelectrolyteinterfaceinallsolidstatebatteries
AT svetlanapershina impactoflisub3subbosub3subadditiononsolidelectrodesolidelectrolyteinterfaceinallsolidstatebatteries
AT borisantonov impactoflisub3subbosub3subadditiononsolidelectrodesolidelectrolyteinterfaceinallsolidstatebatteries
AT alexanderpankratov impactoflisub3subbosub3subadditiononsolidelectrodesolidelectrolyteinterfaceinallsolidstatebatteries
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