Micro-sized silicon-carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries

被引：172

作者：

Song, Jiangxuan ^{[1
]}

Chen, Shuru ^{[1
]}

Zhou, Mingjiong ^{[1
]}

Xu, Terrence ^{[1
]}

Lv, Dongping ^{[1
]}

Gordin, Mikhail L. ^{[1
]}

Long, Tianjun ^{[1
]}

Melnyk, Michael ^{[1
]}

Wang, Donghai ^{[1
]}

机构：

[1] Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 05期

关键词：

PERIODIC MESOPOROUS HYDRIDOSILICA; NANOSCALE BUILDING-BLOCKS; ELECTROCHEMICAL LITHIATION; NANOSTRUCTURED SILICON; FACILE SYNTHESIS; C COMPOSITE; NANOPARTICLES; NANOCOMPOSITES; ELECTROLYTE; INSERTION;

D O I：

10.1039/c3ta14100d

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：

We report the synthesis of micro-sized silicon-carbon (Si-C) composites, which simultaneously possess primary sub-10 nm Si particles and secondary micro-sized aggregation coated with carbon. Because of this unique structure, the as-synthesized Si-C composite anode can deliver excellent cycling stability with a high reversible specific capacity (similar to 1600 mA h g(-1)) within 150 cycles at 400 mA g(-1). Moreover, a high volumetric capacity of similar to 1088 mA h cm(-3) was demonstrated by using this composite cathode, which is 5 times higher than that of commercially available nano-silicon based anodes.

引用

页码：1257 / 1262

页数：6

共 51 条

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