Preparation of LiMO2 (M = Co, Ni) cathode materials for intermediate temperature fuel cells by sol-gel processes

被引:35
作者
Tao, SW [1 ]
Wu, QY [1 ]
Zhan, ZL [1 ]
Meng, GY [1 ]
机构
[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Anhua 230026, Peoples R China
关键词
lithium cobalt oxide; lithium nickel oxide; sol-gel process; conductivity; fuel cell;
D O I
10.1016/S0167-2738(99)00137-X
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
LiMO2 (M = Co, Ni) was prepared by complexing sol-gel processes. The phase and thermal stability were characterized by XRD and TG analyses. LiCoO2 and LiNiO2 phases are formed around 400 degrees C and 700 degrees C respectively in our synthesis process. LiNiO2 exhibit higher electrical conductivity and better H-2/O-2 fuel cell performance than LiCoO2 when used as cathode materials. But its thermal stability is relatively poorer than the later at intermediate temperature. (C) 1999 Elsevier Science BN. All rights reserved.
引用
收藏
页码:53 / 59
页数:7
相关论文
共 23 条
[1]   Proton insertion and lithium-proton exchange in spinel lithium manganates [J].
Ammundsen, B ;
Aitchison, PB ;
Burns, GR ;
Jones, DJ ;
Roziere, J .
SOLID STATE IONICS, 1997, 97 (1-4) :269-276
[2]   Thermal behavior of Li1-yNiO2 and the decomposition mechanism [J].
Arai, H ;
Okada, S ;
Sakurai, Y ;
Yamaki, J .
SOLID STATE IONICS, 1998, 109 (3-4) :295-302
[3]   CHARACTERIZATION AND CATHODE PERFORMANCE OF LI-1-XNI1+XO2 PREPARED WITH THE EXCESS LITHIUM METHOD [J].
ARAI, H ;
OKADA, S ;
OHTSUKA, H ;
ICHIMURA, M ;
YAMAKI, J .
SOLID STATE IONICS, 1995, 80 (3-4) :261-269
[4]   Electrical conductivity and Li-6,Li-7 NMR studies of Li1+yCoO2 [J].
Carewska, M ;
Scaccia, S ;
Croce, F ;
Arumugam, S ;
Wang, Y ;
Greenbaum, S .
SOLID STATE IONICS, 1997, 93 (3-4) :227-237
[5]   Synthesis by a soft chemistry route and characterization of LiNixCo1-xO2 (0<=x<=1) cathode materials [J].
Caurant, D ;
Baffier, N ;
Garcia, B ;
PereiraRamos, JP .
SOLID STATE IONICS, 1996, 91 (1-2) :45-54
[6]   DEVELOPMENT AND CHARACTERIZATION OF NOVEL CATHODE MATERIALS FOR MOLTEN-CARBONATE FUEL-CELL [J].
GIORGI, L ;
CAREWSKA, M ;
PATRIARCA, M ;
SCACCIA, S ;
SIMONETTI, E ;
DIBARTOLOMEO, A .
JOURNAL OF POWER SOURCES, 1994, 49 (1-3) :227-243
[7]   PROTON CONDUCTIVITY IN FUEL-CELLS WITH SOLID SULFATE ELECTROLYTES [J].
HEED, B ;
BIN, Z ;
MELLANDER, BE ;
LUNDEN, A .
SOLID STATE IONICS, 1991, 46 (1-2) :121-125
[8]   A SURVEY OF 1ST-ROW TERNARY OXIDES LISCO2, LICUO2 [J].
HEWSTON, TA ;
CHAMBERLAND, BL .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1987, 48 (02) :97-108
[9]   Vibrational spectroscopic and electrochemical studies of the low and high temperature phases of LiCo(1-x)M(x)O(2) (M=Ni or Ti) [J].
Huang, WW ;
Frech, R .
SOLID STATE IONICS, 1996, 86-8 :395-400
[10]   PROTON INSERTION REACTIONS IN LAYERED TRANSITION-METAL OXIDES [J].
HUGGINS, RA ;
PRINZ, H ;
WOHLFAHRTMEHRENS, M ;
JORISSEN, L ;
WITSCHEL, W .
SOLID STATE IONICS, 1994, 70 :417-424