Long-term cyclability of LiFePO4/carbon composite cathode material for lithium-ion battery applications

被引：86

作者：

Liu, Jing ^{[1
,2
]}

Wang, Jiawei ^{[1
]}

Yan, Xuedong ^{[1
]}

Zhang, Xianfa ^{[1
]}

Yang, Guiling ^{[1
]}

Jalbout, Abraham F. ^{[3
]}

Wang, Rongshun ^{[1
,2
]}

机构：

[1] NE Normal Univ, Dept Chem, Inst Funct Mat, Changchun 130024, Jilin, Peoples R China

[2] Mat Sci & Technol Ctr, LIB Engn Lab, Changchun 130024, Jilin, Peoples R China

[3] Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 24期

关键词：

Lithium-ion batteries; LiFePO4/carbon composite; Long-term cyclability; High-rate performance; Large-scale application; ELECTROCHEMICAL PERFORMANCE; PHOSPHO-OLIVINES; ROOM-TEMPERATURE; LIXFEPO4; SURFACE;

D O I：

10.1016/j.electacta.2009.05.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A simple high-energy ball milling combined with spray-drying method has been developed to synthesize LiFePO4/carbon composite. This material delivers an improved tap density of 1.3 g/cm(3) and a high electronic conductivity of 10(-2) to 10(-3) S/cm. The electrochemical performance, which is especially notable for its high-rate performance, is excellent. The discharge capacities are as high as 109 mAh/g at the current density of 1100 mA/g (about 6.5C rate) and 94 mAh/g at the current density of 1900 mA/g (about 11 C rate). At the high current density of 1700 mA/g (10C rate), it exhibits a long-term cyclability, retaining over 92% of its original discharge capacity beyond 2400 cycles. Therefore, the as-prepared LiFePO4/carbon composite cathode material is capable of such large-scale applications as hybrid and plug-in hybrid electric vehicles. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：5656 / 5659

页数：4

共 20 条

[1] Building better batteries [J].

Armand, M. ;

Tarascon, J. -M. .

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

[2] Nanomaterials for rechargeable lithium batteries [J].

Bruce, Peter G. ;

Scrosati, Bruno ;

Tarascon, Jean-Marie .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) :2930-2946

[3] Electronically conductive phospho-olivines as lithium storage electrodes [J].

Chung, SY ;

Bloking, JT ;

Chiang, YM .

NATURE MATERIALS, 2002, 1 (02) :123-128

[4] The existence of a temperature-driven solid solution in LixFePO4 for 0 ≤ x ≤ 1 [J].

Delacourt, C ;

Poizot, P ;

Tarascon, JM ;

Masquelier, C .

NATURE MATERIALS, 2005, 4 (03) :254-260

[5] Effect of surface carbon structure on the electrochemical performance of LiFePO4 [J].

Doeff, MM ;

Hu, YQ ;

McLarnon, F ;

Kostecki, R .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (10) :A207-A209

[6] Small polaron hopping in LixFePO4 solid solutions:: Coupled lithium-ion and electron mobility [J].

Ellis, Brian ;

Perry, Laura K. ;

Ryan, Dominic H. ;

Nazar, L. F. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (35) :11416-11422

[7] 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

[8] Approaching theoretical capacity of LiFePO4 at room temperature at high rates [J].

Huang, H ;

Yin, SC ;

Nazar, LF .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (10) :A170-A172

[9] Surface studies of carbon films from pyrolyzed photoresist [J].

Kostecki, R ;

Schnyder, B ;

Alliata, D ;

Song, X ;

Kinoshita, K ;

Kötz, R .

THIN SOLID FILMS, 2001, 396 (1-2) :36-43

[10] Experimental visualization of lithium diffusion in LixFePO4 [J].

Nishimura, Shin-ichi ;

Kobayashi, Genki ;

Ohoyama, Kenji ;

Kanno, Ryoji ;

Yashima, Masatomo ;

Yamada, Atsuo .

NATURE MATERIALS, 2008, 7 (09) :707-711

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