Nano-sized SiOx/C composite anode for lithium ion batteries

被引：222

作者：

Wang, Jing ^{[1
]}

Zhao, Hailei ^{[1
,2
]}

He, Jianchao ^{[1
]}

Wang, Chunmei ^{[1
]}

Wang, Jie ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Beijing Key Lab New Energy Mat & Technol, Beijing 100083, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 10期

关键词：

Silicon oxide; Carbon coating; Core-shell structure; Anode; Lithium ion battery; ELECTROCHEMICAL PROPERTIES; HIGH-CAPACITY; SILICON; PERFORMANCE; ELECTRODES; REDUCTION;

D O I：

10.1016/j.jpowsour.2011.01.053

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：

Nano-sized SiOx/C composite with core-shell structure is prepared by a modified Stober method. After heat-treatment, the O/Si ratio in SiOx/C composite is near 1 and the core of SiOx presents a structure composing of amorphous Si clusters and ordered SiO2 domains. SiOx/C composite anode shows high specific capacity (ca. 800 mAh g(-1)), excellent cycling stability, good rate-capability but low initial coulombic efficiency. Li2O and Li4SiO4 may generate in the initial lithiation process, which, combining with the carbon shell, can buffer the volume change caused by the alloying of Si with Li, and thereby improving the cycling stability of electrode. The nano feature of SiOx/C particle and the electronic conductive nature of carbon coating layer ensure the good rate-capability of SiOx/C electrode. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4811 / 4815

页数：5

共 19 条

[1] Crystalline-Amorphous Core-Shell Silicon Nanowires for High Capacity and High Current Battery Electrodes [J].

Cui, Li-Feng ;

Ruffo, Riccardo ;

Chan, Candace K. ;

Peng, Hailin ;

Cui, Yi .

NANO LETTERS, 2009, 9 (01) :491-495

[2] Improved anode performance of thermally treated SiO/C composite with an organic solution mixture [J].

Doh, Chil-Hoon ;

Shin, Hye-Min ;

Kim, Dong-Hun ;

Ha, Yoon-Cheol ;

Jin, Bong-Soo ;

Kim, Hyun-Soo ;

Moon, Seong-In ;

Veluchamy, Angathevar .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (02) :233-237

[3] Structured silicon anodes for lithium battery applications [J].

Green, M ;

Fielder, E ;

Scrosati, B ;

Wachtler, M ;

Serra Moreno, J .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (05) :A75-A79

[4] Electrochemical reduction of nano-SiO2 in hard carbon as anode material for lithium ion batteries [J].

Guo, Bingkun ;

Shu, Jie ;

Wang, Zhaoxiang ;

Yang, Hong ;

Shi, Lihong ;

Liu, Yinong ;

Chen, Liquan .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (12) :1876-1878

[5] In situ XRD and electrochemical study of the reaction of lithium with amorphous silicon [J].

Hatchard, TD ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (06) :A838-A842

[6] Hydrothermal synthesis and electrochemical properties of nano-sized Co-Sn alloy anodes for lithium ion batteries [J].

He, Jianchao ;

Zhao, Hailei ;

Wang, Jing ;

Wang, Jie ;

Chen, Jingbo .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 508 (02) :629-635

[7] Nano- and bulk-silicon-based insertion anodes for lithium-ion secondary cells [J].

Kasavajjula, Uday ;

Wang, Chunsheng ;

Appleby, A. John .

JOURNAL OF POWER SOURCES, 2007, 163 (02) :1003-1039

[8] Enhanced cycle performance of SiO-C composite anode for lithium-ion batteries [J].

Kim, Jae-Hun ;

Sohn, Hun-Joon ;

Kim, Hansu ;

Jeong, Goojin ;

Choi, Wanuk .

JOURNAL OF POWER SOURCES, 2007, 170 (02) :456-459

[9] Electrochemical behaviors of Si/C composite synthesized from F-containing precursors [J].

Liu, Y. ;

Wen, Z. Y. ;

Wang, X. Y. ;

Hirano, A. ;

Imanishi, N. ;

Takeda, Y. .

JOURNAL OF POWER SOURCES, 2009, 189 (01) :733-737

[10] Crystallization of fine silicon particles from silicon monoxide [J].

Mamiya, M ;

Kikuchi, M ;

Takei, H .

JOURNAL OF CRYSTAL GROWTH, 2002, 237 :1909-1914

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