Synthesis and electrochemical properties of nanocrystalline Li[Ni0.20Li0.20Mn0.60]O2

被引：29

作者：

Hong, YS ^{[1
]}

Park, YJ ^{[1
]}

Wu, XL ^{[1
]}

Ryu, KS ^{[1
]}

Chang, SH ^{[1
]}

机构：

[1] Elect & Telecommun Res Inst, Power Source Device Team, Taejon 305350, South Korea

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2003年 / 6卷 / 08期

关键词：

D O I：

10.1149/1.1588114

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A nanocrystalline Li[Ni0.20Li0.20Mn0.60]O-2 powder was synthesized by a simple combustion method and investigated using X-ray diffraction, scanning electron microscopy, and galvanostatic charge/discharge cycling. The particle size of the powder was distributed in the range of 100-200 nm. Rietveld analysis revealed that Li[Ni0.20Li0.20Mn0.60]O-2 is basically a layered rock-salt structure in which a small amount of Ni occupies the 3a sites. The initial discharge capacity of the Li/ Li[Ni0.20Li0.20Mn0.60]O-2 cell was about 288 mAh/g when it was cycled at a voltage range of 4.8-2.0 V with a specific current of 20 mA g(-1). A very promising factor for high-rate capability applications was a reversible capacity of 200 mAh g(-1) at the 100th cycle with a high specific current of 400 mA g(-1). The weight loss measurement for charged Li1-x[Ni0.20Li0.20Mn0.60]O-2 electrodes gave indirect evidence that the long plateau at 4.5 V did not originate from the ejection of oxygen. (C) 2003 The Electrochemical Society.

引用

页码：A166 / A169

页数：4

共 13 条

[1] Identification of cathode materials for lithium batteries guided by first-principles calculations
Ceder, G
Chiang, YM
Sadoway, DR
Aydinol, MK
Jang, YI
Huang, B
[J]. NATURE, 1998, 392 (6677) : 694 - 696
[2] Electronically conductive phospho-olivines as lithium storage electrodes
Chung, SY
Bloking, JT
Chiang, YM
[J]. NATURE MATERIALS, 2002, 1 (02) : 123 - 128
[3] Amorphous FePO4 as 3 V cathode material for lithium secondary batteries
Hong, YS
Ryu, KS
Park, YJ
Kim, MG
Lee, JM
Chang, SH
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (06) : 1870 - 1874
[4] Layered cathode materials Li[NixLi(1/3-2x/3)Mn(2/3-x/3)]O2 for lithium-ion batteries
Lu, ZH
MacNeil, DD
Dahn, JR
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (11) : A191 - A194
[5] Synthesis, structure, and electrochemical behavior of Li[NixLi1/3-2x/3Mn2/3-x/3]O2
Lu, ZH
Beaulieu, LY
Donaberger, RA
Thomas, CL
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (06) : A778 - A791
[6] Understanding the anomalous capacity of Li/Li[NixLi(1/3-2x/3)Mn(2/3-x/3]O2 cells using in situ X-ray diffraction and electrochemical studies
Lu, ZH
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (07) : A815 - A822
[7] Structure and electrochemistry of layered Li[CrxLi(1/3-x3)Mn(2/3-2x/3)]O2
Lu, ZH
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (11) : A1454 - A1459
[8] Structure and electrochemistry of Li[NixCo1-2xMnx]O2 (0≤x≤1/2)
MacNeil, DD
Lu, Z
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (10) : A1332 - A1336
[9] COMBUSTION SYNTHESIS OF METAL CHROMITE POWDERS
MANOHARAN, SS
PATIL, KC
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (04) : 1012 - 1015
[10] 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

← 1 2 →