Mesoporous FePO4 with enhanced electrochemical performance as cathode materials of rechargeable lithium batteries

被引：44

作者：

Shi, ZC ^{[1
]}

Li, YX ^{[1
]}

Ye, WL ^{[1
]}

Yang, Y ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surface, Xiamen 361005, Peoples R China

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 08期

关键词：

D O I：

10.1149/1.1938852

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

FePO4 is an attractive cathode material for lithium batteries, but its practical capacity is limited by the poor lithium intercalation/deintercalation kinetics. In this paper, a mesoporous structure has been imported into FePO4 to improve the kinetics by a modified surfactant template method. Electrochemical tests showed that mesoporous FePO4 fired at 450 degrees C with P123/(Fe+P) molar ratio 0.039 delivered 120 mAh g(-1) at 0.1C and 65 mAh g(-1) at 3C, which was higher than that of reported amorphous and crystalline FePO4. These results help to understand the role of mesostructure in electrode materials for rechargeable lithium batteries. (c) 2005 The Electrochemical Society.

引用

页码：A396 / A399

页数：4

共 26 条

[1] Nanotechnology - Solid progress in ion conduction [J].

Chadwick, AV .

NATURE, 2000, 408 (6815) :925-926

[2] Ruthenium oxide-added quartz iron phosphate as a new intercalation electrode in rechargeable lithium cells [J].

Croce, F ;

D'Epifanio, A ;

Reale, P ;

Settimi, L ;

Scrosati, B .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (05) :A576-A581

[3] Ordered porous materials for emerging applications [J].

Davis, ME .

NATURE, 2002, 417 (6891) :813-821

[4] Amorphous FePO4 as 3 V cathode material for lithium secondary batteries [J].

Hong, YS ;

Ryu, KS ;

Park, YJ ;

Kim, MG ;

Lee, JM ;

Chang, SH .

JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (06) :1870-1874

[5] A mesoporous/crystalline composite material containing tin phosphate for use as the anode in lithium-ion batteries [J].

Kim, E ;

Son, D ;

Kim, TG ;

Cho, J ;

Park, B ;

Ryu, KS ;

Chang, SH .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (44) :5987-5990

[6] Structural, electrochemical and thermal properties of LiNi0.8-yTiyCo0.2O2 as cathode materials for lithium ion battery [J].

Liu, HS ;

Li, J ;

Zhang, ZR ;

Gong, ZL ;

Yang, Y .

ELECTROCHIMICA ACTA, 2004, 49 (07) :1151-1159

[7] Three-dimensional battery architectures [J].

Long, JW ;

Dunn, B ;

Rolison, DR ;

White, HS .

CHEMICAL REVIEWS, 2004, 104 (10) :4463-4492

[8] Hydrated iron phosphates FePO4•nH2O and Fe4(P2O7)3•nH2O as 3 V positive electrodes in rechargeable lithium batteries [J].

Masquelier, C ;

Reale, P ;

Wurm, C ;

Morcrette, M ;

Dupont, L ;

Larcher, D .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (08) :A1037-A1044

[9] Nanostructured materials for energy storage [J].

Nazar, LF ;

Goward, G ;

Leroux, F ;

Duncan, M ;

Huang, H ;

Kerr, T ;

Gaubicher, J .

INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 2001, 3 (03) :191-200

[10] Nanotechnology for the progress of lithium batteries R&D [J].

Panero, S ;

Scrosati, B ;

Wachtler, M ;

Croce, F .

JOURNAL OF POWER SOURCES, 2004, 129 (01) :90-95

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