| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2018-06-07 |
| タイトル |
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タイトル |
Formation and Stability of Interface between Garnet-Type Ta-doped Li7La3Zr2O12 Solid Electrolyte and Lithium Metal Electrode |
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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
保田, 哲志
細川, 寛将
斎藤, 正也
東城, 友都
櫻井, 庸司
Inada, Ryoji
Yasuda, Satoshi
Hosokawa, Hiromasa
Saito, Masaya
Tojo, Tomohiro
Sakurai, Yoji
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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 |
Garnet-type Li7-xLa3Zr2-xTaxO12 (LLZT) is considered a good candidate for the solid electrolyte in all-solid-state lithium batteries because of its reasonably high conductivity around 10-3 S cm-1 at room temperature and stability against lithium (Li) metal with the lowest redox potential. In this study, we synthesized LLZT with a tantalum (Ta) content of 0.45 via a conventional solid-state reaction process and constructed a Li/LLZT/Li symmetric cell by attaching Li metal foils on the polished top and bottom surfaces of an LLZT pellet. We investigated the influence of heating temperatures and times on the interfacial charge-transfer resistance between LLZT and the Li metal electrode. In addition, the effect of the interface resistance on the stability for Li deposition and dissolution was examined using a galvanostatic cycling test. The lowest interfacial resistance of 25 ohm cm2 at room temperature was obtained by heating at 175 degree Celsius (5 degree Celsius lower than the melting point of Li) for three to five hours. We confirmed that the current density at which the short circuit occurs in the Li/LLZT/Li cell via the propagation of Li dendrite into LLZT increases with decreasing interfacial charge transfer resistance. |
| bibliographic_information |
Batteries
en : Batteries
巻 4,
号 2,
p. 26,
発行日 2018-06-07
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| 出版者 |
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出版者 |
MDPI |
| item_10001_source_id_9 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2313-0105 |
| item_10001_relation_14 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.3390/batteries4020026 |
| 権利 |
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権利情報 |
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution |
| 関連サイト |
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識別子タイプ |
URI |
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関連識別子 |
http://www.mdpi.com/2313-0105/4/2/26 |
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関連名称 |
MDPIサイト |
| 出版タイプ |
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出版タイプ |
VoR |
| キーワード |
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主題 |
garnet |
| キーワード |
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主題 |
solid electrolyte |
| キーワード |
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主題 |
lithium metal |
| キーワード |
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主題 |
interface |
| キーワード |
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|
主題 |
charge-transfer resistance |
| キーワード |
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主題 |
garnet |
| キーワード |
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主題 |
solid electrolyte |
| キーワード |
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主題 |
lithium metal |
| キーワード |
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主題 |
interface |
| キーワード |
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主題 |
charge-transfer resistance |
b23130105-0004-26.pdf (5.3 MB)
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