Practical performances of Li-ion polymer batteries with LiNi0.8Co0.2O2, MCMB, and PAN-based gel electrolyte

被引:30
作者
Akashi, H [1 ]
Shibuya, M [1 ]
Orui, K [1 ]
Shibamoto, G [1 ]
Sekai, K [1 ]
机构
[1] Sony Corp, Yokohama Res Ctr, Hodogaya Ku, Yokohama, Kanagawa 2400036, Japan
关键词
Li-ion polymer battery; gel electrolyte; poly(acrylonitrile); thermal stability; lithium nickel dioxide; mesocarbon microbeads;
D O I
10.1016/S0378-7753(02)00465-2
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
The practical performances and thermal stability of Li-ion polymer batteries with LiNi0.8Co0.2O2, mesocarbon microbead-based graphite, and poly(acrylonitrile) (PAN)-based gel electrolytes are reported. The gel electrolyte, which shows a fire-retardance by itself as well as good chemical stability effectively improved thermal stability of the Li-ion polymer battery up to 170 degreesC. We also found that the mesocarbon microbead-based graphite showed better coulombic efficiency even though the gel electrolyte contained PC and GBL. An evaluation of cell performances showed that the electrodes and the gel electrolyte were promising material for a next-generation Li-ion polymer battery. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
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页码:577 / 582
页数:6
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