| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2021-01-26 |
| タイトル |
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タイトル |
Effect of Postannealing on the Properties of a Ta-Doped Li7La3Zr2O12 Solid Electrolyte Degraded by Li Dendrite Penetration |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ |
journal article |
| 著者 |
稲田, 亮史
竹田, 惇人
山崎, 佑輔
三宅, 翔太郎
櫻井, 庸司
Thangadurai, Venkataraman
Inada, Ryoji
Takeda, Atsuto
Yamazaki, Yusuke
Miyake, Shotaro
Sakurai, Yoji
Venkataraman, Thangadurai
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In this study, we investigated the effect of postannealing on the properties of a garnet-type Ta-doped Li6.55La3Zr1.55Ta0.45O12 (Ta-LLZO) ceramic solid electrolyte degraded by lithium (Li) dendrite penetration during electrochemical Li plating and stripping testing in a Li/Ta-LLZO/Li symmetric cell. After the electrochemical testing in the symmetric cell, the Ta-LLZO pellet was taken out of the cell and then annealed at 800 or 900 °C for 4 h in air. It was confirmed that locally discolored spots on the Ta-LLZO surface at which Li dendrite penetrated disappeared after postannealing. The total conductivity of the annealed Ta-LLZO pellet was lower than the initial one but was retained above 10–4 S cm–1 at room temperature. When the soft-shorted or degraded area size by Li dendrite penetration is localized and smaller than the area size for Ta-LLZO, it is expected that the degradation of the conductivity of annealed Ta-LLZO becomes smaller. Obtained electrochemical results indicate the possibility of reusing the degraded garnet-type solid electrolyte by Li dendrite penetration in another all-solid-state Li battery. |
| 書誌情報 |
ACS Applied Energy Materials
en : ACS Applied Energy Materials
巻 3,
号 12,
p. 12517-12524,
発行日 2020
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| 出版者 |
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出版者 |
American Chemical Society |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
2574-0962 |
| DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
10.1021/acsaem.0c02474 |
| 権利 |
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権利情報 |
Copyright © 2020 American Chemical Society , Embargo 12 Months |
| 関連サイト |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1021/acsaem.0c02474 |
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関連名称 |
ACSサイト |
| 出版タイプ |
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出版タイプ |
AM |
| キーワード |
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主題 |
solid electrolyte |
| キーワード |
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主題 |
garnet |
| キーワード |
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主題 |
ionic conductivity |
| キーワード |
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主題 |
Li dendrite |
| キーワード |
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主題 |
postannealing |
| キーワード |
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|
主題 |
solid electrolyte |
| キーワード |
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|
主題 |
garnet |
| キーワード |
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|
主題 |
ionic conductivity |
| キーワード |
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主題 |
Li dendrite |
| キーワード |
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主題 |
postannealing |
A25740962-0003-12517.pdf (4.9 MB)
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