Development of bulk-type all-solid-state lithium-sulfur battery using LiBH4 electrolyte

被引：113

作者：

Unemoto, Atsushi ^{[1
]}

Yasaku, Syun ^{[2
]}

Nogami, Genki ^{[3
]}

Tazawa, Masaru ^{[3
]}

Taniguchi, Mitsugu ^{[3
]}

Matsuo, Motoaki ^{[2
]}

Ikeshoji, Tamio ^{[1
]}

Orimo, Shin-ichi ^{[1
,2
]}

机构：

[1] Tohoku Univ, WPI Adv Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Mitsubishi Gas Chem Co Ltd, Kita Ku, Niigata 9503112, Japan

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 08期

基金：

日本科学技术振兴机构;

关键词：

IONIC LIQUID ELECTROLYTE; ELECTROCHEMICAL REACTIONS; CARBON; REVERSIBILITY; COMPOSITES; CONDUCTION;

D O I：

10.1063/1.4893666

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Stable battery operation of a bulk-type all-solid-state lithium-sulfur battery was demonstrated by using a LiBH4 electrolyte. The electrochemical activity of insulating elemental sulfur as the positive electrode was enhanced by the mutual dispersion of elemental sulfur and carbon in the composite powders. Subsequently, a tight interface between the sulfur-carbon composite and the LiBH4 powders was manifested only by cold-pressing owing to the highly deformable nature of the LiBH4 electrolyte. The high reducing ability of LiBH4 allows using the use of a Li negative electrode that enhances the energy density. The results demonstrate the interface modification of insulating sulfur and the architecture of an all-solid-state Li-S battery configuration with high energy density. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 35 条

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