Preparation of nano-crystalline LiFe0.97Co0.03O1.95Cl0.05 by solid-state method

被引：1

作者：

Lee, YS

Sun, YK

Kobayakawa, K

Sato, Y

机构：

[1] Kanagawa Univ, Dept Appl Chem, Yokohama, Kanagawa 2218686, Japan

[2] Kanagawa Univ, High Tech Res Ctr, Yokohama, Kanagawa 2218686, Japan

[3] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea

来源：

CHEMISTRY LETTERS | 2002年 / 06期

关键词：

D O I：

10.1246/cl.2002.642

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

LiFe0.97Co0.03O1.95Cl0.05 has been synthesized at 150degreesC using the solid-state, method. A Li/LiFeO2, cell as reported previously exhibited a large capacity decline until 15 cycles. To obtain a good cycleability of LiFeO2, Co and Cl ions substituted some Fe and O atoms of the LiFeO2 structure. LiFe0.97Co0.03O1.95Cl0.05 showed small lattice parameters compared with those of LiFeO2. This material showed a good cycleability with fairly a high discharge capacity of over 134 mAh/g at high current density.

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页码：642 / 643

页数：2

相关论文

共 11 条

[1] Reversibility of LiNiO2 cathode [J].

Arai, H ;

Okada, S ;

Sakurai, Y ;

Yamaki, J .

SOLID STATE IONICS, 1997, 95 (3-4) :275-282

[2] PREPARATION, PHYSICAL AND STRUCTURAL CHARACTERIZATION OF LIMNO2 SAMPLES WITH VARIABLE CATIONIC DISORDER [J].

CROGUENNEC, L ;

DENIARD, P ;

BREC, R ;

LECERF, A .

JOURNAL OF MATERIALS CHEMISTRY, 1995, 5 (11) :1919-1925

[3] STRUCTURE AND ELECTROCHEMISTRY OF LI1+/-YNIO2 AND A NEW LI2NIO2 PHASE WITH THE NI(OH)2 STRUCTURE [J].

DAHN, JR ;

VONSACKEN, U ;

MICHAL, CA .

SOLID STATE IONICS, 1990, 44 (1-2) :87-97

[4] Li[Mn2]O4 spinel cathode material showing no capacity fading in the 3 V range [J].

Kang, SH ;

Goodenough, JB .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (10) :3621-3627

[5] Synthesis, structure, and electrochemical properties of a new lithium iron oxide, LiFeO2, with a corrugated layer structure [J].

Kanno, R ;

Shirane, T ;

Kawamoto, Y ;

Takeda, Y ;

Takano, M ;

Ohashi, M ;

Yamaguchi, Y .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (08) :2435-2442

[6]

Lee YS, 2001, CHEM LETT, P882

[7]

LEE YS, UNPUB ELECTROCHEM SO

[8] Lithium nickel oxyfluoride (Li1-zNi1+zFyO2-y) and lithium magnesium nickel oxide (Li1-z(MgxNi1-x)1+z O2) cathodes for lithium rechargeable batteries Part I.: Synthesis and characterization of bulk phases [J].

Naghash, AR ;

Lee, JY .

ELECTROCHIMICA ACTA, 2001, 46 (07) :941-951

[9]

Ohzuku T., 1992, CHEM EXPRESS, V7, P193

[10] Low temperature synthesis and electrochemical characteristics of LiFeO2 cathodes [J].

Sakurai, Y ;

Arai, H ;

Okada, S ;

Yamaki, J .

JOURNAL OF POWER SOURCES, 1997, 68 (02) :711-715