Improved performance for lithium-ion batteries with nickel nanocone-arrays supported germanium anode

被引：11

作者：

Wang, Desheng ^{[1
]}

Yang, Zhibo ^{[1
]}

Li, Fei ^{[1
]}

Liu, Dequan ^{[1
]}

Wang, Xinghui ^{[1
]}

Yan, Hengqing ^{[1
]}

He, Deyan ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Phys, Lanzhou 730000, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 11期

关键词：

Germanium coating; Nickel nanocone-array; Lithium-ion battery anode; HIGH-CAPACITY; NANOWIRES;

D O I：

10.1016/j.matlet.2011.02.082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Germanium coatings as an anode material of lithium-ion batteries have been deposited on electrodeposited nickel nanocone-arrays by very high frequency plasma enhanced chemical vapor deposition. The morphologies of the obtained nanostructures were characterized by field emission scanning electron microscopy in detail. The electrochemical performance was evaluated by a galvanostatic battery testing. It was shown that the anode exhibits a stable capacity of 590 mAh/g at a rate of C/10. A reversible specific capacity is retained to be 468 mAh/g at a rate of C/2 after 50 cycles, which is close to the value of the second cycle. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1542 / 1544

页数：3

共 14 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].

Aricò, AS ;

Bruce, P ;

Scrosati, B ;

Tarascon, JM ;

Van Schalkwijk, W .

NATURE MATERIALS, 2005, 4 (05) :366-377

[2] Building better batteries [J].

Armand, M. ;

Tarascon, J. -M. .

NATURE, 2008, 451 (7179) :652-657

[3] High capacity Li ion battery anodes using Ge nanowires [J].

Chan, Candace K. ;

Zhang, Xiao Feng ;

Cui, Yi .

NANO LETTERS, 2008, 8 (01) :307-309

[4] High-performance lithium battery anodes using silicon nanowires [J].

Chan, Candace K. ;

Peng, Hailin ;

Liu, Gao ;

McIlwrath, Kevin ;

Zhang, Xiao Feng ;

Huggins, Robert A. ;

Cui, Yi .

NATURE NANOTECHNOLOGY, 2008, 3 (01) :31-35

[5] Nanocrystalline and thin film germanium electrodes with high lithium capacity and high rate capabilities [J].

Graetz, J ;

Ahn, CC ;

Yazami, R ;

Fultz, B .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (05) :A698-A702

[6] Characterization of nickel nanocones routed by electrodeposition without any template [J].

Hang, Tao ;

Li, Ming ;

Fei, Qin ;

Mao, Dali .

NANOTECHNOLOGY, 2008, 19 (03)

[7] Battery materials for ultrafast charging and discharging [J].

Kang, Byoungwoo ;

Ceder, Gerbrand .

NATURE, 2009, 458 (7235) :190-193

[8] Sn78Ge22@carbon core-shell nanowires as fast and high-capacity lithium storage media [J].

Lee, Hyojin ;

Cho, Jaephil .

NANO LETTERS, 2007, 7 (09) :2638-2641

[9] Synthesis and optimization of nanoparticle Ge confined in a carbon matrix for lithium battery anode material [J].

Lee, Hyojin ;

Kim, Hansu ;

Doo, Seok-Gwang ;

Cho, Jaephil .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (04) :A343-A346

[10] SEI layer formation on amorphous si thin electrode during precycling [J].

Lee, Yong Min ;

Lee, Jun Young ;

Shim, Heung-Taek ;

Lee, Joong Kee ;

Park, Jung-Ki .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (06) :A515-A519

← 1 2 →