A facile synthesis of graphite/silicon/graphene spherical composite anode for lithium-ion batteries

被引：142

作者：

Gan, Lei ^{[1
]}

Guo, Huajun ^{[1
]}

Wang, Zhixing ^{[1
]}

Li, Xinhai ^{[1
]}

Peng, Wenjie ^{[1
]}

Wang, Jiexi ^{[1
]}

Huang, Silin ^{[1
]}

Su, Mingru ^{[1
]}

机构：

[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Hunan, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2013年 / 104卷

关键词：

Silicon; Graphene; Spray drying; Anode; COATED SILICON NANOCOMPOSITES; HIGH-CAPACITY; ELECTROCHEMICAL PERFORMANCE; SECONDARY BATTERIES; NEGATIVE ELECTRODE; GRAPHENE; CARBON; OXIDE; INTERCALATION; PARTICLES;

D O I：

10.1016/j.electacta.2013.04.083

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The Graphite/Silicon@reGO composite was synthesized via spray drying and subsequent annealing. According to XRD, Raman spectroscopy and FT-IR, graphene was demonstrated to be existed in the composite. Moreover, SEM and TEM were also used to illustrate the morphology of Graphite/Silicon@reGO. Used as anode for lithium-ion battery, it exhibited good cyclability with a high reversible charge capacity of 575.1 mAh g(-1) and showed a capacity retention ratio of 73.1% after 50 cycles at a current density of 50 mA g(-1). It also presented good rate capability at different rates of 50-1000 mA g(-1). EIS test showed that the composite electrode had a lower SEI resistance and charge-transfer resistance due to the existence of graphene. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.

引用

页码：117 / 123

页数：7

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