Liquid-Phase Synthesis of Uniformly Nanosized LiMnPO4 Particles and Their Electrochemical Properties for Lithium-Ion Batteries

被引：31

作者：

Doi, Takayuki ^{[1
]}

Yatomi, Shota ^{[2
]}

Kida, Tetsuya ^{[2
]}

Okada, Shigeto ^{[1
]}

Yamaki, Jun-ichi ^{[1
]}

机构：

[1] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

[2] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan

来源：

CRYSTAL GROWTH & DESIGN | 2009年 / 9卷 / 12期

关键词：

SPRAY-PYROLYSIS METHOD; ELECTRODE MATERIALS; NANOCRYSTALS; FE; EXTRACTION; INSERTION; CATHODES; MN;

D O I：

10.1021/cg900452a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Uniformly nanosized particles of olivine LiMnPO4 were prepared at 280 degrees C by liquid-phase synthesis using a high-boiling-point organic solution, and their electrochemical properties were investigated by charge and discharge measurements for the first time. TEM observation clarified that the resultant LiMnPO4 particles had fairly uniform particle sizes of ca. 7 nm. The discharge Curves of the nanosized LiMnPO4 particles showed a monotonous decrease in voltage below 4 V, which was quite different from the clear plateau observed for conventional micrometer-sized LiMnPO4 powder. Thus, uniformly nanosized particles of active materials are readily available for Studying the particle-size effect oil the electrochemical properties of Li-ion batteries.

引用

页码：4990 / 4992

页数：3

共 19 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[2] Toward understanding of electrical limitations (electronic, ionic) in LiMPO4 (M = Fe, Mn) electrode materials [J].

Delacourt, C ;

Laffont, L ;

Bouchet, R ;

Wurm, C ;

Leriche, JB ;

Morcrette, M ;

Tarascon, JM ;

Masquelier, C .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (05) :A913-A921

[3] Electrochemical insertion and extraction of lithium ion at uniform nanosized Li4/3Ti5/3O4 particles prepared by a spray pyrolysis method [J].

Doi, T ;

Iriyama, Y ;

Abe, T ;

Ogumi, Z .

CHEMISTRY OF MATERIALS, 2005, 17 (06) :1580-1582

[4]

DOI T, 2008, 214 M EL SOC HON HAW

[5] Electrochemical insertion and extraction of lithium-ion at nano-sized LiMn2O4 particles prepared by a spray pyrolysis method [J].

Doi, Takayuki ;

Yahiro, Tsutomu ;

Okada, Shigeto ;

Yamaki, Jun-ichi .

ELECTROCHIMICA ACTA, 2008, 53 (27) :8064-8069

[6] Synthesis and characterization of nano-sized LiFePO4 cathode materials prepared by a citric acid-based sol-gel route [J].

Hsu, KF ;

Tsay, SY ;

Hwang, BJ .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (17) :2690-2695

[7] Lithium storage in nanostructured TiO2 made by hydrothermal growth [J].

Kavan, L ;

Kalbác, M ;

Zukalová, M ;

Exnar, I ;

Lorenzen, V ;

Nesper, R ;

Graetzel, M .

CHEMISTRY OF MATERIALS, 2004, 16 (03) :477-485

[8] Synthesis of LiFePO4 nanoparticles in polyol medium and their electrochemical properties [J].

Kim, Dong-Han ;

Kim, Jaekook .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (09) :A439-A442

[9] Formation and dissolution of gold nanocrystal superlattices in a colloidal solution [J].

Lin, XM ;

Wang, GM ;

Sorensen, CM ;

Klabunde, KJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (26) :5488-5492

[10]

Mai HX, 2007, CHEM MATER, V19, P4514, DOI [10.1021/cm071073l, 10.1021/cm0710731]

← 1 2 →