All-solid-state rechargeable lithium batteries with Li2S as a positive electrode material

被引：165

作者：

Hayashi, Akitoshi ^{[1
]}

Ohtsubo, Ryoji ^{[1
]}

Ohtomo, Takamasa ^{[1
]}

Mizuno, Fuminori ^{[1
]}

Tatsumisago, Masahiro ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Naka Ku, Osaka 5998531, Japan

来源：

JOURNAL OF POWER SOURCES | 2008年 / 183卷 / 01期

关键词：

all-solid-state battery; lithium battery; solid electrolyte; positive electrode; Li/S battery; mechanical milling;

D O I：

10.1016/j.jpowsour.2008.05.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Li2S-Cu composite electrode materials were prepared by mechanical milling and applied to all-solid-state lithium cells using the Li2S-P2S5 glass-ceramic electrolyte. The addition of Cu and the mechanical activation improved the electrochemical performance of Li2S in all-solid-state cells. The In/Li2S-Cu cells were charged and then discharged at room temperature, suggesting that Li2S was utilized as a lithium source. The cells exhibited high discharge capacity of about 490 mAh g(-1) at the 1st cycle. The SEM and EDX analyses suggested that the amorphous LixCuS domain was partially formed by milling. and the domain played an important role in the improvement of capacity. The electrochemical reaction mechanism of the Li2S-Cu composites was discussed on the basis of the mechanism of the S-Cu composite electrode. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：422 / 426

页数：5

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