磷酸铁锂的液相合成及改性研究进展

被引：4

作者：

罗传喜

宋慧宇

廖世军

机构：

[1] 华南理工大学化学与化工学院

来源：

材料导报 | 2010年 / 07期

关键词：

磷酸铁锂(LiFePO4); 液相合成; 电化学性能; 改性;

D O I：

暂无

中图分类号：

TM912 [蓄电池];

学科分类号：

0808 ;

摘要：

橄榄石结构的LiFePO4以其高比容量、低成本、环境友好、热稳定性良好等优点而成为一类最具发展前景的锂离子电池正极材料,但电导率和离子扩散率低是制约其在动力电池领域广泛应用的主要障碍。从材料制备和改性等方面综述了近年来国内外利用液相法合成LiFePO4以及掺杂改性的研究状况,比较了水热法、共沉淀法、溶胶-凝胶法及掺杂对材料性能的影响,认为合成材料的形貌和粒径以及导电剂或少量金属离子的掺杂是提高LiFe-PO4电导率的有效方法,指出今后的重点方向是合成工艺的改进和理论的继续深入研究。

引用

页码：34 / 39

页数：6

共 19 条

[11]

A PEG assisted sol-gel syn- thesis of LiFePO4 as cathodic material for lithium ion cells .2 XU Z H,XU L,LAI Q Y,et al. Materials Research Bulletin . 2007

[12]

Synthesis of LiFePO 4 micro and nanoparticles in supercritical water[J] . Jaewon Lee,Amyn S. Teja.Materials Letters . 2006 (17)

[13] Characteristics of lithium iron phosphate (LiFePO4)particles synthesized in subcritical and supercritical water [J].

Lee, J ;

Teja, AS .

JOURNAL OF SUPERCRITICAL FLUIDS, 2005, 35 (01) :83-90

[14] LiFePO4 doped with ions prepared by co-precipitation method [J].

Ni, JF ;

Zhou, HH ;

Chen, JT ;

Zhang, XX .

MATERIALS LETTERS, 2005, 59 (18) :2361-2365

[15] Synthesis of LiFePO4 by co-precipitation and microwave heating [J].

Park, KS ;

Son, JT ;

Chung, HT ;

Kim, SJ ;

Lee, CH ;

Kim, HG .

ELECTROCHEMISTRY COMMUNICATIONS, 2003, 5 (10) :839-842

[16]

Comparison between different LiFePO 4 synthesis routes and their influence on its physico-chemical properties[J] . Sylvain Franger,Frédéric Le Cras,Carole Bourbon,Hélène Rouault.Journal of Power Sources . 2003

[17]

Fine-particle lithium iron phosphate LiFePO 4 synthesized by a new low-cost aqueous precipitation technique[J] . Journal of Power Sources . 2003

[18]

Reactivity, stability and electrochemical behavior of lithium iron phosphates[J] . Shoufeng Yang,Yanning Song,Peter Y. Zavalij,M. Stanley Whittingham.Electrochemistry Communications . 2002 (3)

[19] Hydrothermal synthesis of lithium iron phosphate cathodes [J].

Yang, SF ;

Zavalij, PY ;

Whittingham, MS .

ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (09) :505-508

← 1 2 →