Silicon core-hollow carbon shell nanocomposites with tunable buffer voids for high capacity anodes of lithium-ion batteries

被引：196

作者：

Chen, Shuru ^{[1
]}

Gordin, Mikhail L. ^{[1
]}

Yi, Ran ^{[1
]}

Howlett, Giles ^{[1
]}

Sohn, Hiesang ^{[1
]}

Wang, Donghai ^{[1
]}

机构：

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

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2012年 / 14卷 / 37期

关键词：

SURFACE-CHEMISTRY; SI NANOPARTICLES; CYCLE LIFE; PERFORMANCE; PARTICLES; SPHERES; NANOSPHERES; ELECTRODES; STORAGE;

D O I：

10.1039/c2cp42231j

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：

Silicon core-hollow carbon shell nanocomposites with controllable voids between silicon nanoparticles and hollow carbon shell were easily synthesized by a two-step coating method and exhibited different charge-discharge cyclability as anodes for lithium-ion batteries. The best capacity retention can be achieved with a void/Si volume ratio of approx. 3 due to its appropriate volume change tolerance and maintenance of good electrical contacts.

引用

页码：12741 / 12745

页数：5

共 43 条

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