Suppression of electrochemical decomposition of propylene carbonate at a graphite anode in lithium-ion cells

被引：59

作者：

Nakamura, H ^{[1
]}

Komatsu, H ^{[1
]}

Yoshio, M ^{[1
]}

机构：

[1] SAGA UNIV,DEPT APPL CHEM,SAGA 840,JAPAN

来源：

JOURNAL OF POWER SOURCES | 1996年 / 62卷 / 02期

关键词：

graphite; lithium-ion batteries; intercalation; propyrene carbonate; lithium organic electrolyte; anodes;

D O I：

10.1016/S0378-7753(96)02417-2

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 decomposition of propylene carbonate (PC) at a graphite anode in lithium-ion cells is suppressed remarkably by choosing a proper mixing ratio of PC with co-existing solvents. For example, the decomposition of PC is essentially inhibited using PC-diethyl carbonate (DEC), PC-methylethyl carbonate (MEG) or PC-dimethyl carbonate (DMC) with 1:4 (v/v) mixed solvent solution containing a volume % of PC of less than 25%. Conductivity measurements show that all PC molecules can be solvated to Li+ ions as Li(PC)? in these mixed solvents, where 1.0 M LiPF6 and 25 vol. % of PC are used. This suggests that the solvated PC molecules are not decomposed at graphite anode.

引用

页码：219 / 222

页数：4

共 14 条

[1] PERFORMANCE OF LITHIUM-ION RECHARGEABLE BATTERIES - GRAPHITE WHISKER ELECTROLYTE LICOO2 ROCKING-CHAIR SYSTEM [J].