Synthesis of LiFePO4 micro and nanoparticles in supercritical water

被引：85

作者：

Lee, Jaewon ^{[1
]}

Teja, Amyn S. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 17-18期

关键词：

lithium iron phosphate (LiFePO4); supercritical synthesis; nanomaterials; powder technology;

D O I：

10.1016/j.matlet.2005.12.083

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two synthesis routes for the production of LiFePO4 particles were investigated in water at subcritical and supercritical conditions. Micron and nano-sized particles of LiFCPO4 were obtained via both routes, with nano-sized particles predominating when temperature was above the critical temperature of water. Our results suggest that synthesis in supercritical water is attractive for obtaining nanometer-sized crystalline particles of LiFePO4 with a low degree of agglomeration. Electrochemical tests showed that this material exhibited improved capacity compared with LiFePO4 prepared via other methods. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2105 / 2109

页数：5

共 9 条

[1] BLANCHARD FN, 1989, POWDER DIFFR, V4, P26
[2] A novel concept for the synthesis of an improved LiFePO4 lithium battery cathode
Croce, F
D'Epifanio, A
Hassoun, J
Deptula, A
Olczac, T
Scrosati, B
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (03) : A47 - A50
[3] LiFePO4 synthesis routes for enhanced electrochemical performance
Franger, S
Le Cras, F
Bourbon, C
Rouault, H
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (10) : A231 - A233
[4] Approaching theoretical capacity of LiFePO4 at room temperature at high rates
Huang, H
Yin, SC
Nazar, LF
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (10) : A170 - A172
[5] Effect of structure on the Fe3+/Fe2+ redox couple in iron phosphates
Padhi, AK
Nanjundaswamy, KS
Masquelier, C
Okada, S
Goodenough, JB
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (05) : 1609 - 1613
[6] Phospho-olivines as positive-electrode materials for rechargeable lithium batteries
Padhi, AK
Nanjundaswamy, KS
Goodenough, JB
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (04) : 1188 - 1194
[7] Improved electrochemical performance of a LiFePO4-based composite cathode
Prosini, PP
Zane, D
Pasquali, M
[J]. ELECTROCHIMICA ACTA, 2001, 46 (23) : 3517 - 3523
[8] Optimized LiFePO4 for lithium battery cathodes
Yamada, A
Chung, SC
Hinokuma, K
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (03) : A224 - A229
[9] Hydrothermal synthesis of lithium iron phosphate cathodes
Yang, SF
Zavalij, PY
Whittingham, MS
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (09) : 505 - 508

← 1 →