A Polyethylene Glycol-Supported Microporous Carbon Coating as a Polysulfide Trap for Utilizing Pure Sulfur Cathodes in Lithium-Sulfur Batteries

被引：347

作者：

Chung, Sheng-Heng ^{[1
,2
]}

Manthiram, Arumugam ^{[1
,2
]}

机构：

[1] Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA

[2] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA

来源：

ADVANCED MATERIALS | 2014年 / 26卷 / 43期

关键词：

LI-S BATTERIES; CYCLING STABILITY; HIGH-CAPACITY; PERFORMANCE; COMPOSITE; GRAPHENE; SEPARATOR; EFFICIENCY; NANOTUBES; MOLECULES;

D O I：

10.1002/adma.201402893

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A composite separator with a thin-film polysulfide trap is developed for lithium-sulfur batteries. A polyethylene glycol-supported microporous carbon coating (MPC/PEG coating) on a Celgard separator suppresses polysulfide diffusion through its physical and chemical polysulfide-trapping capabilities. The MPC/PEG-coated separator thus facilitates the use of pure sulfur cathodes that generally suffer from poor cyclability and low electrochemical utilization.

引用

页码：7352 / 7357

页数：6

共 42 条

[1] Lithium/Sulfur Cell Discharge Mechanism: An Original Approach for Intermediate Species Identification [J].

Barchasz, Celine ;

Molton, Florian ;

Duboc, Carole ;

Lepretre, Jean-Claude ;

Patoux, Sebastien ;

Alloin, Fannie .

ANALYTICAL CHEMISTRY, 2012, 84 (09) :3973-3980

[2] AB-INITIO STUDY OF THE ELECTRONIC-STRUCTURES OF LITHIUM-CONTAINING DIATOMIC-MOLECULES AND IONS [J].

BOLDYREV, AI ;

SIMONS, J ;

SCHLEYER, PV .

JOURNAL OF CHEMICAL PHYSICS, 1993, 99 (11) :8793-8804

[3]

Bruce PG, 2012, NAT MATER, V11, P19, DOI [10.1038/nmat3191, 10.1038/NMAT3191]

[4] Bifunctional Separator with a Light-Weight Carbon-Coating for Dynamically and Statically Stable Lithium-Sulfur Batteries [J].

Chung, Sheng-Heng ;

Manthiram, Arumugam .

ADVANCED FUNCTIONAL MATERIALS, 2014, 24 (33) :5299-5306

[5] A Natural Carbonized Leaf as Polysulfide Diffusion Inhibitor for High-Performance Lithium-Sulfur Battery Cells [J].

Chung, Sheng-Heng ;

Manthiram, Arumugam .

CHEMSUSCHEM, 2014, 7 (06) :1655-1661

[6] High-Performance Li-S Batteries with an Ultra-lightweight MWCNT-Coated Separator [J].

Chung, Sheng-Heng ;

Manthiram, Arumugam .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2014, 5 (11) :1978-1983

[7] Carbonized Eggshell Membrane as a Natural Polysulfide Reservoir for Highly Reversible Li-S Batteries [J].

Chung, Sheng-Heng ;

Manthiram, Arumugam .

ADVANCED MATERIALS, 2014, 26 (09) :1360-1365

[8] Nano-cellular carbon current collectors with stable cyclability for Li-S batteries [J].

Chung, Sheng-Heng ;

Manthiram, Arumugam .

JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (34) :9590-9596

[9] Sulfur-Impregnated Activated Carbon Fiber Cloth as a Binder-Free Cathode for Rechargeable Li-S Batteries [J].

Elazari, Ran ;

Salitra, Gregory ;

Garsuch, Arnd ;

Panchenko, Alexander ;

Aurbach, Doron .

ADVANCED MATERIALS, 2011, 23 (47) :5641-+

[10] New Approaches for High Energy Density Lithium-Sulfur Battery Cathodes [J].

Evers, Scott ;

Nazar, Linda F. .

ACCOUNTS OF CHEMICAL RESEARCH, 2013, 46 (05) :1135-1143

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