Facile synthesis of nanocrystalline LiFePO4/graphene composite as cathode material for high power lithium ion batteries

被引：26

作者：

Mo, Runwei ^{[1
]}

Lei, Zhengyu ^{[1
]}

Rooney, David ^{[3
]}

Sun, Kening ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Harbin 150090, Peoples R China

[3] Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

来源：

ELECTROCHIMICA ACTA | 2014年 / 130卷

关键词：

Graphene; Nanocrystalline; Lithium-Ion Batteries; Cathode; ELECTROCHEMICAL PERFORMANCE; NANOSTRUCTURED MATERIALS; LIFEPO4; NANOPARTICLES; ENERGY-CONVERSION; ROOM-TEMPERATURE; PHOSPHO-OLIVINES; STORAGE DEVICES; GRAPHENE; CARBON; IRON;

D O I：

10.1016/j.electacta.2014.03.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We describe a simple strategy, which is based on the idea of space confinement, for the synthesis of carbon coating on LiFePO4 nanoparticles/graphene nanosheets composites in a water-in-oil emulsion system. The prepared composite displayed high performance as a cathode material for lithium-ion battery, such as high reversible lithium storage capacity (158 mA h g(-1) after 100 cycles), high coulombic efficiency (over 97%), excellent cycling stability and high rate capability (as high as 83 mA h g(-1) at 60 C). Very significantly, the preparation method employed can be easily adapted and be extended as a general approach to sophisticated compositions and structures for the preparation of highly dispersed nanosized structure on graphene. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：594 / 599

页数：6

共 47 条

[11] Optimization of carbon coatings on LiFePO4 [J].

Doeff, Marca M. ;

Wilcox, James D. ;

Kostecki, Robert ;

Lau, Grace .

JOURNAL OF POWER SOURCES, 2006, 163 (01) :180-184

[12] Porous olivine composites synthesized by sol-gel technique [J].

Dominko, R ;

Bele, M ;

Gaberscek, M ;

Remskar, M ;

Hanzel, D ;

Goupil, JM ;

Pejovnik, S ;

Jamnik, J .

JOURNAL OF POWER SOURCES, 2006, 153 (02) :274-280

[13] Impact of the carbon coating thickness on the electrochemical performance of LiFePO4/C composites [J].

Dominko, R ;

Bele, M ;

Gaberscek, M ;

Remskar, M ;

Hanzel, D ;

Pejovnik, S ;

Jamnik, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (03) :A607-A610

[14] Wired porous cathode materials:: A novel concept for synthesis of LiFePO4 [J].

Dominko, Robert ;

Bele, Marjan ;

Goupil, Jean-Michel ;

Gaberscek, Miran ;

Hanzel, Darko ;

Arcon, Iztok ;

Jamnik, Janez .

CHEMISTRY OF MATERIALS, 2007, 19 (12) :2960-2969

[15] A multifunctional 3.5 V iron-based phosphate cathode for rechargeable batteries [J].

Ellis, B. L. ;

Makahnouk, W. R. M. ;

Makimura, Y. ;

Toghill, K. ;

Nazar, L. F. .

NATURE MATERIALS, 2007, 6 (10) :749-753

[16] Interpretation of Raman spectra of disordered and amorphous carbon [J].

Ferrari, AC ;

Robertson, J .

PHYSICAL REVIEW B, 2000, 61 (20) :14095-14107

[17] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[18] Room-temperature single-phase Li insertion/extraction in nanoscale LixFePO4 [J].

Gibot, Pierre ;

Casas-Cabanas, Montse ;

Laffont, Lydia ;

Levasseur, Stephane ;

Carlach, Philippe ;

Hamelet, Stephane ;

Tarascon, Jean-Marie ;

Masquelier, Christian .

NATURE MATERIALS, 2008, 7 (09) :741-747

[19] Rapid synthesis of LiFePO4/C composite by microwave method [J].

Guo, Xiang-Feng ;

Zhan, Hui ;

Zhou, Yun-Hong .

SOLID STATE IONICS, 2009, 180 (4-5) :386-391

[20] Nanostructured materials for electrochemical energy conversion and storage devices [J].

Guo, Yu-Guo ;

Hu, Jin-Song ;

Wan, Li-Jun .

ADVANCED MATERIALS, 2008, 20 (15) :2878-2887

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