Optimized lithium iron phosphate for high-rate electrochemical applications

被引：93

作者：

Franger, S ^{[1
]}

Bourbon, C ^{[1
]}

Le Cras, F ^{[1
]}

机构：

[1] Commiss Energie Atom, DRT, DTEN, SCSE,LSEM, F-38054 Grenoble, France

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2004年 / 151卷 / 07期

关键词：

D O I：

10.1149/1.1758721

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Structural and electrochemical properties of a new highly rechargeable lithium iron phosphate are described here. Its behavior as cathodic material was also tested in a complete power system based on a nanocrystalline Li4Ti5O12 anode and a nonaqueous liquid electrolyte (1 mol L-1 LiPF6 in ethylene carbonate/dimethyl carbonate). This cell operates with a very flat voltage profile at around 2 V, with very little capacity fading upon cycling, even at a very high rate (4C or 8C). These features, combined with the low cost and the lack of toxicity of the components, make this system an attractive and inexpensive power source for the low voltage electronic market. (C) 2004 The Electrochemical Society.

引用

页码：A1024 / A1027

页数：4

共 18 条

[1] Lithium extraction/insertion in LiFePO4:: an X-ray diffraction and Mossbauer spectroscopy study [J].

Andersson, AS ;

Kalska, B ;

Häggström, L ;

Thomas, JO .

SOLID STATE IONICS, 2000, 130 (1-2) :41-52

[2] Reducing carbon in LiFePO4/C composite electrodes to maximize specific energy, volumetric energy, and tap density [J].

Chen, ZH ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (09) :A1184-A1189

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

Chung, SY ;

Bloking, JT ;

Chiang, YM .

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

[4] A novel concept for the synthesis of an improved LiFePO4 lithium battery cathode [J].

Croce, F ;

D'Epifanio, A ;

Hassoun, J ;

Deptula, A ;

Olczac, T ;

Scrosati, B .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (03) :A47-A50

[5] Comparison between different LiFePO4 synthesis routes and their influence on its physico-chemical properties [J].

Franger, S ;

Le Cras, F ;

Bourbon, C ;

Rouault, H .

JOURNAL OF POWER SOURCES, 2003, 119 :252-257

[6] LiFePO4 synthesis routes for enhanced electrochemical performance [J].

Franger, S ;

Le Cras, F ;

Bourbon, C ;

Rouault, H .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (10) :A231-A233

[7]

FRANGER S, 2002, 2002DR22 CEA DEP NEW

[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]

ILTCHEV N, 2002, P 11 INT M LITH BATT, P131

[10] ZERO-STRAIN INSERTION MATERIAL OF LI[LI1/3TI5/3]O-4 FOR RECHARGEABLE LITHIUM CELLS [J].

OHZUKU, T ;

UEDA, A ;

YAMAMOTO, N .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (05) :1431-1435

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