Nanosilicon-Coated Graphene Granules as Anodes for Li-Ion Batteries

被引：240

作者：

Evanoff, Kara ^{[1
]}

Magasinski, Alexandre ^{[1
]}

Yang, Junbing ^{[2
]}

Yushin, Gleb ^{[1
]}

机构：

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

[2] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

来源：

ADVANCED ENERGY MATERIALS | 2011年 / 1卷 / 04期

关键词：

LITHIUM INSERTION; COMPOSITE ANODES; CARBONACEOUS MATERIALS; RAMAN-SPECTROSCOPY; SILICON; PERFORMANCE; STORAGE; ELECTRODES; GRAPHITE; INSERTION/EXTRACTION;

D O I：

10.1002/aenm.201100071

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：

Uniform deposition of Si and C layers on high surface area graphene produces granules with specific surface area of ∼5 m 2· g -1. The anode composed of the nanocomposite particles exhibited specific capacity in excess of 2000 mAh·g -1 at a current density of 140 mA·g -1 and excellent stability for 150 cycles. The low surface area of the composite resulted in an average Cou-lombic efficiency in excess of 99%. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：495 / 498

页数：4

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