发明授权
- 专利标题： Nonaqueous electrolyte and nonaqueous electrolyte secondary battery
- 专利标题（中）： 非水电解质和非水电解质二次电池
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申请号： US09985369申请日： 2001-11-02
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公开(公告)号： US06794089B2公开(公告)日： 2004-09-21
- 发明人: Masahiro Sekino , Masashi Fujiwara , Asako Satoh , Jun Momma , Masayuki Oguchi , Makoto Kato , Hiroyuki Hasebe
- 申请人： Masahiro Sekino , Masashi Fujiwara , Asako Satoh , Jun Momma , Masayuki Oguchi , Makoto Kato , Hiroyuki Hasebe
- 优先权： JP2001-054937 20010228
- 主分类号： H01M616
- IPC分类号： H01M616
摘要：
Disclosed is a nonaqueous electrolyte comprising a nonaqueous solvent which contains ethylene carbonate (EC), propylene carbonate (PC), &ggr;-butyrolactone (BL), and a fourth component, which is a solvent other than the EC, PC and BL, and the mixing ratio x (% by volume) of EC based on the total amount of the nonaqueous solvent falls within a range of between 15 and 50, the mixing ratio y (% by volume) of PC based on the total amount of the nonaqueous solvent falls within a range of between 2 and 35, the mixing ratio z (% by volume) of BL based on the total amount of the nonaqueous solvent falls within a range of between 30 and 85, and the mixing ratio p (% by volume) of the fourth component based on the total amount of the nonaqueous solvent is larger than 0 and is not larger than 5.