Harnessing Steric Separation of Freshly Nucleated Li2S Nanoparticles for Bottom-Up Assembly of High-Performance Cathodes for Lithium-Sulfur and Lithium-Ion Batteries

被引：140

作者：

Wu, Feixiang ^{[1
,2
]}

Kim, Hyea ^{[1
,3
]}

Magasinski, Alexandre ^{[1
]}

Lee, Jung Tae ^{[1
]}

Lin, Huan-Ting ^{[1
]}

Yushin, Gleb ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China

[3] Sila Nanotechnol Inc, Atlanta, GA 30332 USA

来源：

ADVANCED ENERGY MATERIALS | 2014年 / 4卷 / 11期

基金：

美国国家科学基金会;

关键词：

S BATTERIES; CARBON; PARTICLES; ELECTROLYTE; COMPOSITES; CAPACITY; STABILITY; BINDER; ANODE; LIFE;

D O I：

10.1002/aenm.201400196

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 nanostructured C-Li2S composite nanopowder is prepared via a scalable, high-throughput solution-processing method based on the steric separation of freshly nucleated Li2S nanoparticles and their self-assembling. Each 100-200 nm particle is composed of smaller 5-20 nm Li 2S nanoparticles uniformly distributed within a rigid carbon matrix. When used as a cathode material for Li cells, this composite demonstrates high rate performance, near-theoretical capacity utilization, and excellent cycle stability. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页数：7

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