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  1. 学術雑誌論文

Synthesis and lithium-ion conductivity for perovskite-type Li3/8Sr7/16Ta3/4Zr1/4O3 solid electrolyte by powder-bed sintering

https://repo.lib.tut.ac.jp/records/1301
https://repo.lib.tut.ac.jp/records/1301
0d899e03-ce28-4641-a9ab-8feb5a4e0623
名前 / ファイル ライセンス アクション
LSTZ s01672738-0261-95 (1.6 MB)
license.icon
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-05-19
タイトル
タイトル Synthesis and lithium-ion conductivity for perovskite-type Li3/8Sr7/16Ta3/4Zr1/4O3 solid electrolyte by powder-bed sintering
言語
言語 eng
資源タイプ
資源タイプ journal article
著者 稲田, 亮史

× 稲田, 亮史

WEKO 2973
NRID 1000030345954
e-Rad 30345954

稲田, 亮史

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木村, 圭祐

× 木村, 圭祐

WEKO 3018

木村, 圭祐

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日下部, 晃司

× 日下部, 晃司

WEKO 3019

日下部, 晃司

Search repository
東城, 友都

× 東城, 友都

WEKO 3020
e-Rad 30736385

東城, 友都

Search repository
櫻井, 庸司

× 櫻井, 庸司

WEKO 2977
NRID 1000080452217
e-Rad 80452217

櫻井, 庸司

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Inada, Ryoji

× Inada, Ryoji

WEKO 2978

en Inada, Ryoji

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Kimura, Keisuke

× Kimura, Keisuke

WEKO 3021

en Kimura, Keisuke

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Kusakabe, Koji

× Kusakabe, Koji

WEKO 3022

en Kusakabe, Koji

Search repository
Tojo, Tomohiro

× Tojo, Tomohiro

WEKO 3023

en Tojo, Tomohiro

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Sakurai, Yoji

× Sakurai, Yoji

WEKO 2982

en Sakurai, Yoji

Search repository
抄録
内容記述タイプ Abstract
内容記述 Perovskite-type compounds ABO3 in which A= La, Li and B = Ti (Li2/33xLaxTiO3, LLT) exhibit very high bulk ionic conductivity of 1.2 × 10-3 Scm-1 at 30°C, but LLT has very large grain-boundary resistance and is only stable above 1.61.8 V vs. Li/Li+ because Ti4+ can be easily reduced to Ti3+ below this potential. Li3/8Sr7/16Ta3/4Zr1/4O3
(LSTZ), in which A and B cations of SrZrO3 are partially substituted by Li and Ta, has been reported to be more stable against the lithiated negative electrode than LLT. In this paper, we synthesized LSTZ by using “powder-bed sintering” method, which is commonly used for preparation of dense garnet-structured lithium-ion conductor
Li7La3Zr2O12 (LLZ). At sintering process, the LSTZ pellet was covered with the same mother powder to suppress the excess Li loss during high temperature treatment and the formation of secondary phases. For LSTZ sintered with covering LSTZ mother powder, secondary phases such as SrTa2O6 and Sr2Ta2O7 were significantly reduced and LSTZ grains in the pellet were in good contact with each other. According to these improvement, the bulk and total (bulk + grain-boundary) ionic conductivity at 27°C of LSTZ attained to 3.5 × 10-4 Scm-1 and 2.7 × 10-4 Scm-1, respectively. The total conductivity at room temperature is approximately 3 times higher than that as
previously reported and comparable with LLT and LLZ.
書誌情報 Solid State Ionics

巻 261, p. 95-99, 発行日 2014-04
出版者
出版者 Elsevier
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 10.1016/j.ssi.2014.04.005
権利
権利情報 Copyright © 2014 Elsevier B.V. All rights reserved
関連サイト
識別子タイプ URI
関連識別子 http://www.sciencedirect.com/science/article/pii/S0167273814001672
関連名称 ScienceDirect
著者版フラグ
出版タイプ AM
キーワード
主題 Perovskite
キーワード
主題 Li3/8Sr7/16Ta3/4Zr1/4O3
キーワード
主題 Solid electrolyte
キーワード
主題 Powder-bed sintering
キーワード
主題 Lithium ion conductivity
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