SOLUTIONS OF LIASF6 IN 1,3-DIOXOLANE FOR SECONDARY LITHIUM BATTERIES

被引:71
作者
GOFER, Y [1 ]
BENZION, M [1 ]
AURBACH, D [1 ]
机构
[1] BAR ILAN UNIV,DEPT CHEM,IL-52900 RAMAT GAN,ISRAEL
关键词
D O I
10.1016/0378-7753(92)80135-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
Highly stable solutions of 1,3-dioxolane (DN) with LiClO4 or LiAsF6 may be prepared by the use of tertiary amine additives. Very high Li-cycling efficiency is obtained with stabilized LiAsF6/DN solutions. These electrolytes can be further improved by addition of alkyl carbonates as cosolvents. The correlation between Li-cycling efficiency and Li-surface chemistry in these systems was investigated using surface sensitive Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray microanalysis techniques.
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页码:163 / 178
页数:16
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