Lithium-sulphur batteries - binder free carbon nanotubes electrode examined with various electrolytes

被引：116

作者：

Hagen, M. ^{[1
]}

Doerfler, S. ^{[2
]}

Althues, H. ^{[2
]}

Tuebke, J. ^{[1
]}

Hoffmann, M. J. ^{[3
]}

Kaskel, S. ^{[2
]}

Pinkwart, K. ^{[1
]}

机构：

[1] Fraunhofer Inst Chem Technol ICT, D-76327 Pfinztal, Germany

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

[3] KIT, Inst Appl Mat Ceram Mech Engn, D-76131 Karlsruhe, Germany

来源：

JOURNAL OF POWER SOURCES | 2012年 / 213卷

关键词：

Lithium-sulphur; Battery; Binder free; Ionic liquid; Solid electrolyte; CNT; COMPOSITE CATHODE MATERIALS; GLYCOL) DIMETHYL ETHER; ELECTROCHEMICAL PROPERTIES; PERFORMANCE IMPROVEMENT; CELLS; CYCLE; SOLVENT;

D O I：

10.1016/j.jpowsour.2012.04.004

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：

A new type of electrode for lithium-sulphur batteries is introduced based on vertical-aligned carbon nanotubes (CNTs) grown on a nickel foil without any binder. The electrodes are synthesized by employing a catalyst layer and a CVD process. The CNTs directly synthesized on the Ni current collector are sulphur infiltrated using different approaches and the results are examined by SEM. Furthermore, cycle tests (1.0-3.0 V) with various electrolytes (liquid organic, ionic liquid and solid) are performed. The binder free CNT cathodes contain the highest so far published total ratio of sulphur (90%) in the electrode. Additionally the sulphur mass per cm(2) electrode can be more than three times as high as in regular slurry-based sulphur electrodes, thus doubling the volumetric energy density. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：239 / 248

页数：10

共 34 条

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