Charge-discharge mechanism of LiCoPO4 cathode for rechargeable lithium batteries

被引:26
作者
Okada, S
Sawa, S
Uebou, Y
Egashira, M
Yamaki, J
Tabuchi, M
Kobayashi, H
Fukumi, K
Kageyama, H
机构
[1] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan
[2] Natl Inst Adv Ind Sci & Technol, Ikeda, Osaka 5638577, Japan
关键词
cathode; olivine; LiCoPO4;
D O I
10.5796/electrochemistry.71.1136
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The structure of ordered-olivine LiCoPO4 was identified by neutron diffraction measurements. A 4.8 V discharge profile was demonstrated using coin-type cells. XAFS and magnetic measurements indicated that the high-voltage plateau of Li1-xCoPO4 corresponds to the Co2+ /Co3+ redox reaction.
引用
收藏
页码:1136 / 1138
页数:3
相关论文
共 14 条
[1]   Olivine LiCoPO4 as 4.8 V electrode material for lithium batteries [J].
Amine, K ;
Yasuda, H ;
Yamachi, M .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2000, 3 (04) :178-179
[2]   Lithium extraction/insertion in LiFePO4:: an X-ray diffraction and Mossbauer spectroscopy study [J].
Andersson, AS ;
Kalska, B ;
Häggström, L ;
Thomas, JO .
SOLID STATE IONICS, 2000, 130 (1-2) :41-52
[3]  
ANDERSSON AS, 2000, THESIS FS TECHNOLOGY, P532
[4]   LINIVO4 - A 4.8 VOLT ELECTRODE MATERIAL FOR LITHIUM CELLS [J].
FEY, GTK ;
LI, W ;
DAHN, JR .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (09) :2279-2282
[5]  
IZUMI F, 1993, RIETVELD METHOD, pCH13
[6]  
Kawai H, 1998, ELECTROCHEM SOLID ST, V1, P212, DOI 10.1149/1.1390688
[7]   Novel 5 V spinel cathode Li2FeMn3O8 for lithium ion batteries [J].
Kawai, H ;
Nagata, M ;
Tabuchi, M ;
Tukamoto, H ;
West, AR .
CHEMISTRY OF MATERIALS, 1998, 10 (11) :3266-+
[8]   The new neutron powder diffractometer with a multi-detector system for high-efficiency and high-resolution measurements [J].
Ohoyama, K ;
Kanouchi, T ;
Nemoto, K ;
Ohashi, M ;
Kajitani, T ;
Yamaguchi, Y .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1998, 37 (6A) :3319-3326
[9]   Cathode properties of phospho-olivine LiMPO4 for lithium secondary batteries [J].
Okada, S ;
Sawa, S ;
Egashira, M ;
Yamaki, J ;
Tabuchi, M ;
Kageyama, H ;
Konishi, T ;
Yoshino, A .
JOURNAL OF POWER SOURCES, 2001, 97-8 :430-432
[10]  
Okada S, 1997, DENKI KAGAKU, V65, P802