Synthesis of a new lithium ionic conductor, thio-LISICON-lithium germanium sulfide system
Synthesis of a new lithium ionic conductor, thio-LISICON-lithium germanium sulfide system
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DOI：
10.1016/s0167-2738(00)00277-0
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发表时间：
2000-05-01
影响因子：
3.2
通讯作者：
Irie, M
中科院分区：
文献类型：
--
作者：
Kanno, R;Hata, T;Irie, M
在Li 2S-GeS 2、Li 2S-GeS 2-ZnS和Li 2S-GeS 2-Ga 2S 3系统中发现的新的硫代LISICON（锂超紧张导体）具有与γ-Li 3 PO 4型相关的结构。发现了六种新材料（Li_2GeS_3、Li_4GeS_4、Li_2 ZnGeS_4、Li_（4 - 2）xZnxGeS_4、Li_5GaS_4和Li_（4 + x）+ δ（Ge_（1-δ ′-xGax）S_4），其中Li_（4 +x）+ δ-（Ge_（1-δ ′-xGax）S_4在室温下表现出最高的电导率，为6.5 × 10 ~（-5）S cm ~（-1）。我们的电化学测量结果表明，Li 4 +x+delta（Ge 1-delta '-x-Ga-x）S-4在相对于Li高达约5 V时是稳定的。还研究了使用Li/Li 4 +x+delta-（Ge 1-δ ′-xGax）S-4/LiCoO 2的全固态锂电池。(C)2000由Elsevier Science B. V.出版，保留所有权利。
The new thio-LISICON (LIthium SuperTonic CONductor) found in the Li2S-GeS2, Li2S-GeS2-ZnS and Li2S-GeS2-Ga2S3 systems have structures related to the gamma-Li3PO4-type. Six new materials were found (Li2GeS3, Li4GeS4, Li2ZnGeS4, Li4-2xZnxGeS4, Li5GaS4 and Li4+x+delta(Ge1-delta'-xGax)S-4), and Li4+x+delta-(Ge1-delta'-xGax)S-4 showed the highest conductivity of 6.5 X 10(-5) S cm(-1) at room temperature. Our results on electrochemical measurements indicated that Li4+x+delta(Ge1-delta'-x-Ga-x)S-4 is stable up to approximate to 5 V vs. Li. An all-solid-state lithium cells using Li/Li4+x+delta-(Ge1-delta'-xGax)S-4/LiCoO2 was also examined. (C) 2000 Published by Elsevier Science B.V. All rights reserved.