Synthesis and electrochemical properties of layered Li[Ni1/3Co1/3Mn1/3]0.96Ti0.04O1.96F0.04 as cathode material for lithium-ion batteries

被引：37

作者：

Ding, Yanhuai ^{[1
,2
]}

Zhang, Ping ^{[1
,2
]}

Gao, Deshu ^{[3
]}

机构：

[1] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan 411105, Hunan, Peoples R China

[2] Xiangtan Univ, Inst Fundamental Mech & Mat Engn, Xiangtan 411105, Hunan, Peoples R China

[3] Xiangtan Univ, Coll Chem, Xiangtan 411105, Hunan, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 456卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

cathode material; co-substitution; electrochemical performance;

D O I：

10.1016/j.jallcom.2007.02.074

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The layered Li[Ni1/3Co1/3Mn1/3](0.96)Ti0.04O1.96F0.04 cathode material was synthesized and the effect of Ti-F co-substitution on the structure and electrochemical performances of LiNi1/3Mn1/3Co1/3O2 was characterized and investigated by X-ray diffraction (XRD), charge-discharge experiments and electrochemical impedance spectroscopy (EIS). The results showed that the electrochemical performances of LiNi1/3Mn1/3Co1/3O2 have been improved dramatically by Ti-F co-substitution. The initial discharge capacity of Li[Ni1/3Co1/3Mn1/3](0.96)Ti0.04O1.96F0.04 samples reached 169 mAh g(-1) and the capacity retention rate is 96.1% up to 50 cycles. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：344 / 347

页数：4

共 15 条

[1] LiNi0.5Co0.5O2 as a long-lived positive active material for lithium-ion batteries [J].

Belharouak, I ;

Tsukamoto, H ;

Amine, K .

JOURNAL OF POWER SOURCES, 2003, 119 :175-177

[2]

GAO Y, 2003, Patent No. 6620400

[3] Structural and electrochemical properties of LiNi1/3Mn1/3Co1/3O2-xFx prepared by solid state reaction [J].

Kageyama, Masaya ;

Li, Decheng ;

Kobayakawa, Koichi ;

Sato, Yuichi ;

Lee, Yun-Sung .

JOURNAL OF POWER SOURCES, 2006, 157 (01) :494-500

[4] Synthesis and electrochemical properties of Li[Ni1/3Co1/3Mn(1/3-x)Mgx]O2-yFy via coprecipitation [J].

Kim, GH ;

Myung, ST ;

Bang, HJ ;

Prakash, J ;

Sun, YK .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (12) :A477-A480

[5] Microstructure and electrochemical performance of LiNi0.6C0.4-xMnO2cathode materials [J].

Liao, PY ;

Duh, JG ;

Sheen, SR .

JOURNAL OF POWER SOURCES, 2005, 143 (1-2) :212-218

[6] Synthesis and characterization of LiNi1-x-yCoxMnyO2 as the cathode materials of secondary lithium batteries [J].

Liu, ZL ;

Yu, AS ;

Lee, JY .

JOURNAL OF POWER SOURCES, 1999, 81 :416-419

[7] Structure and electrochemistry of Li[NixCo1-2xMnx]O2 (0≤x≤1/2) [J].

MacNeil, DD ;

Lu, Z ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (10) :A1332-A1336

[8] SOLID-STATE REDOX REACTIONS OF LICOO2 (R(3)OVER-BAR-M) FOR 4 VOLT SECONDARY LITHIUM CELLS [J].

OHZUKU, T ;

UEDA, A .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (11) :2972-2977

[9] Synthesis and structural characterization of layered Li[Ni1/3+xCo1/3Mn1/3-2xMox]O2 cathode materials by ultrasonic spray pyrolysis [J].

Park, SH ;

Oh, SW ;

Sun, YK .

JOURNAL OF POWER SOURCES, 2005, 146 (1-2) :622-625

[10] Synthesis and structural characterization of layered Li[Ni1/3Co1/3Mn1/3]O2 cathode materials by ultrasonic spray pyrolysis method [J].

Park, SH ;

Yoon, CS ;

Kang, SG ;

Kim, HS ;

Moon, SI ;

Sun, YK .

ELECTROCHIMICA ACTA, 2004, 49 (04) :557-563

← 1 2 →