Carbon- Based Anodes for Lithium Sulfur Full Cells with High Cycle Stability

被引：168

作者：

Brueckner, Jan ^{[1
]}

Thieme, Soeren ^{[1
]}

Boettger-Hiller, Falko ^{[2
]}

Bauer, Ingolf ^{[1
]}

Grossmann, Hannah Tamara ^{[1
]}

Strubel, Patrick ^{[1
]}

Althues, Holger ^{[1
]}

Spange, Stefan ^{[2
]}

Kaskel, Stefan ^{[1
,3
]}

机构：

[1] Fraunhofer Inst Mat & Beam Technol IWS, D-01277 Dresden, Germany

[2] Tech Univ Chemnitz, Chair Polymer Chem, D-09111 Chemnitz, Germany

[3] Tech Univ Dresden, Chair Inorgan Chem 1, D-01062 Dresden, Germany

来源：

ADVANCED FUNCTIONAL MATERIALS | 2014年 / 24卷 / 09期

关键词：

lithium sulfur batteries; electrochemistry; sulfur utilization; electrode materials; cycle stability; HIGH-PERFORMANCE; BATTERY; CATHODE; COMPOSITE; CAPACITY; LINO3; FILM;

D O I：

10.1002/adfm.201302169

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The lithium sulfur battery system has been studied since the late 1970s and has seen renewed interest in recent years. However, even after three decades of intensive research, prolonged cycling can only be achieved when a large excess of electrolyte and lithium is used. Here, for the first time, a balanced and stable lithium sulfur fullcell is demonstrated with silicon-carbon as well as all-carbon anodes. More than 1000 cycles, a specific capacity up to 1470 mAh g(-1) (sulfur) (720 mAh g(-1) (cathode)), and a high coulombic efficiency of over 99% even with a low amount of electrolyte are achieved. The alternative anodes do not suffer from electrolyte depletion, which is found to be the main cause of cell failure when using metallic lithium anodes.

引用

页码：1284 / 1289

页数：6

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