Title:
NONAQUEOUS SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2002025613
Kind Code:
A
Abstract:
To provide a nonaqueous secondary battery with high capacity and high safety even when abnormalities are generated such as in overcharge.
This nonaqueous secondary battery has a positive electrode, a negative electrode, and an electrolyte, and sulfolene or its derivative is included in the electrolyte. The content of the sulfolene or its derivative in the electrolyte is preferable to be 0.05-10 wt.% in the solvent component of the electrolyte, and as a negative electrode active material, a carbon material having an average particle size of 8-20 μm is preferable. This is preferably applied to the nonaqueous secondary battery having a discharge capacity per volume of an electrode stack of 130 mAh/cm3 or more.
Inventors:
HAYASHI KEIICHI
TOSHIRO HIROYUKI
MATSUMOTO KAZUNOBU
SHIMADA KOJI
TOSHIRO HIROYUKI
MATSUMOTO KAZUNOBU
SHIMADA KOJI
Application Number:
JP2000207616A
Publication Date:
January 25, 2002
Filing Date:
July 10, 2000
Export Citation:
Assignee:
HITACHI MAXELL
SUMITOMO SEIKA CHEMICALS
SUMITOMO SEIKA CHEMICALS
International Classes:
H01M10/05; C01B31/02; H01M4/587; H01M10/0567; (IPC1-7): H01M10/40; H01M4/02; H01M4/58
Domestic Patent References:
| JPH11329447A | 1999-11-30 | |||
| JP2000123880A | 2000-04-28 | |||
| JP2000294278A | 2000-10-20 | |||
| JP2000353545A | 2000-12-19 | |||
| JP2001283909A | 2001-10-12 | |||
| JP2001345120A | 2001-12-14 | |||
| JP2000123826A | 2000-04-28 | |||
| JPH11162511A | 1999-06-18 | |||
| JPH08321312A | 1996-12-03 | |||
| JP2000123868A | 2000-04-28 |
Attorney, Agent or Firm:
Miwa Tetsuo
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