Modification of LixNi1-yCoyO2 by applying a surface coating of MgO

被引:123
作者
Kweon, HJ
Kim, SJ
Park, DG [1 ]
机构
[1] Sookmyung Womens Univ, Dept Chem, Seoul 140742, South Korea
[2] Samsung Display Devices, Chunan 330300, South Korea
关键词
lithium ion battery; cathode material; coating; crystallization; MgO; LiNiO2;
D O I
10.1016/S0378-7753(00)00368-2
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
Mg(OH)(2) is coated on the surface of semi-crystalline LixNi1-yCoyO2. By further heating the coated sample, the surface is modified. This lowers the initial discharge capacity and improves the cycle-reversibility of a test lithium-ion cell, which was made with surface-modified LixNi1-yCoyO2 as the cathode material. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:255 / 261
页数:7
相关论文
共 19 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]   Electrochemical and thermal behavior of LiNi1-zMzO2 (M = Co, Mn, Ti) [J].
Arai, H ;
Okada, S ;
Sakurai, Y ;
Yamaki, J .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (09) :3117-3125
[3]   LIXNIO2, A PROMISING CATHODE FOR RECHARGEABLE LITHIUM BATTERIES [J].
BROUSSELY, M ;
PERTON, F ;
BIENSAN, P ;
BODET, JM ;
LABAT, J ;
LECERF, A ;
DELMAS, C ;
ROUGIER, A ;
PERES, JP .
JOURNAL OF POWER SOURCES, 1995, 54 (01) :109-114
[4]   Particulate sol-gel synthesis and electrochemical characterization of LiMO2 (M=Ni, Ni0.75Co0.25) powders [J].
Chang, CC ;
Kumta, PN .
JOURNAL OF POWER SOURCES, 1998, 75 (01) :44-55
[5]   LiNi1-xCoxO2 prepared at low temperature using β-Ni1-xCoxOOH and either LiNO3 or LiOH [J].
Fujita, Y ;
Amine, K ;
Maruta, J ;
Yasuda, H .
JOURNAL OF POWER SOURCES, 1997, 68 (01) :126-130
[6]   AN INVESTIGATION OF SPINEL-RELATED AND ORTHORHOMBIC LIMNO2 CATHODES FOR RECHARGEABLE LITHIUM BATTERIES [J].
GUMMOW, RJ ;
THACKERAY, MM .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (05) :1178-1182
[7]  
KIM SJ, 1999, J KOREAN ELECTROCHEM, V2, P5
[8]   Synthesis of LixNi0.85Co0.15O2 by the PVA-precursor method and charge-discharge characteristics of a lithium ion battery using this material as cathode [J].
Kweon, HJ ;
Kim, GB ;
Kim, HS ;
Nam, SS ;
Park, DG .
JOURNAL OF POWER SOURCES, 1999, 83 (1-2) :84-92
[9]   Syntheses of LiMn2O4, LiCoO2 and LiNi0.8Co0.2O2 by the PVA-precursor method and their use as a cathode in the lithium-ion rechargeable battery [J].
Kweon, HJ ;
Kim, SS ;
Kim, GB ;
Park, DG .
JOURNAL OF MATERIALS SCIENCE LETTERS, 1998, 17 (20) :1697-1701
[10]  
MCCLUNE WF, 1999, B KOR CHEM SOC, V20, P508