Title:
LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2002/058182
Kind Code:
A1
Abstract:
A lithium secondary battery comprising an anode, a cathode and a nonaqueous electrolyte, the anode or the cathode being an electrode having on a current collector an active substance thin film occluding/releasing lithium, the active substance thin film being separated into columnar portions by a slit formed in the thickness direction thereof, the bottoms of the columnar portions acting as electrodes in close contact with the collector, characterized in that the nonaqueous electrolyte contains a mixed solvent consisting of at least two kinds of solvents, and mixed solvent comprises at least ethylene carbonate and/or vinylene carbonate as components.
Inventors:
OTA TAEKO (JP)
FUJIMOTO HIROYUKI (JP)
OHSHITA RYUJI (JP)
KAMINO MARUO (JP)
FUJIMOTO HIROYUKI (JP)
OHSHITA RYUJI (JP)
KAMINO MARUO (JP)
Application Number:
PCT/JP2002/000265
Publication Date:
July 25, 2002
Filing Date:
January 17, 2002
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
OTA TAEKO (JP)
FUJIMOTO HIROYUKI (JP)
OHSHITA RYUJI (JP)
KAMINO MARUO (JP)
OTA TAEKO (JP)
FUJIMOTO HIROYUKI (JP)
OHSHITA RYUJI (JP)
KAMINO MARUO (JP)
International Classes:
H01M4/134; H01M4/64; H01M10/05; H01M4/66; H01M10/0568; H01M10/0569; H01M4/38; H01M4/70; H01M6/16; (IPC1-7): H01M10/40; H01M4/04; H01M4/66
Foreign References:
| JP2002075350A | 2002-03-15 | |||
| JP2001266951A | 2001-09-28 | |||
| US5494762A | 1996-02-27 | |||
| JP2001291514A | 2001-10-19 | |||
| JP2000311706A | 2000-11-07 | |||
| JPH08335465A | 1996-12-17 | |||
| JP2000294251A | 2000-10-20 | |||
| JPH06314565A | 1994-11-08 |
Attorney, Agent or Firm:
Metsugi, Makoto (Tanimachi 1-chome Chuo-ku Osaka-shi, Osaka, JP)
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