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Sintering Mechanisms of High-Performance Garnet-type Solid Electrolyte Densified by Spark Plasma Sintering
http://hdl.handle.net/10069/37471
http://hdl.handle.net/10069/3747177b25311-1426-4595-a535-f167321c083e
名前 / ファイル | ライセンス | アクション |
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Supple.pdf (2.5 MB)
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EleAct222_648.pdf (1.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-12-21 | |||||
タイトル | ||||||
タイトル | Sintering Mechanisms of High-Performance Garnet-type Solid Electrolyte Densified by Spark Plasma Sintering | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Garnet | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Impurity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Short circuit | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Solid electrolyte | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Spark plasma sintering | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Yamada, Hirotoshi
× Yamada, Hirotoshi× Ito, Tomoko× Hongahally, Basappa Rajendra |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Garnet-type solid electrolyte Li6.5La3Zr1.5Ta0.5O12 (LLZT) was densified by using a spark plasma sintering (SPS) technique. Formation of impurities in the obtained pellets was studied in detail. It is revealed that impurities are strongly related to the SPS process: electrolysis of LLZT and electromigration of graphite. The electrolysis results in La2Zr2O7 on anode of the SPS process, which is accompanied by reduction of Li2CO3 to amorphous carbon on cathode. The electrolysis on SPS could be successfully suppressed by employing LLZT powder without Li2CO3. When these impurities were removed, pellets obtained by SPS exhibited electrochemical performance comparable with those densified by other methods total ionic conductivity of 6.9 × 10?4 S cm?1 at 298 K and short-circuit prevention up to 100 μA cm?2 on dc polarization. The results confirm great advantage of SPS on manufacturing the dense garnet-type solid electrolytes: a low-temperature (900?1100 °C) and short-sintering-time process (10 min). | |||||
書誌情報 |
Electrochimica Acta 巻 222, p. 648-656, 発行日 2016-12-20 |
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出版者 | ||||||
出版者 | Elsevier Ltd. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00134686 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.electacta.2016.11.020 | |||||
権利 | ||||||
権利情報 | c 2016 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Electrochimica Acta, 222, pp.648-656; 2016 |