Flat non-aqueous electrolyte secondary cell

Details Flat non-aqueous electrolyte secondary cell Flat non-aqueous electrolyte secondary cell

2008-05-27

2008-05-27

Ryan, Patrick Joseph (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Flat-type unit cell and specific unit cell components

C429S127000, C429S124000, C429S185000, C429S231800, C429S181000, C429S330000, C429S176000, C429S094000, C429S245000, C429S332000

Reexamination Certificate

active

07378186

ABSTRACT:
In a flat non-aqueous electrolyte secondary cell comprising an electricity-generating element including at least a cathode, a separator and an anode and a non-aqueous electrolyte in the inside of a cathode case, a plurality of electrode units each consisting of the cathode and the anode opposite to each another via the separator are laminated to form an electrode group, or an electrode unit in a sheet form consisting of the cathode and the anode opposite to each another via the separator is wound to form an electrode group, or a sheet-shape cathode is wrapped with the separator except for a part contacting at inner face of cathode case and a sheet-shaped anode is set on the sheet-shaped cathode in a right angled position each other and then these cathode and anode are bent alternately to form an electrode group, and the total sum of the areas of the opposing cathode and anode in this electrode group is larger than the area of the opening of an insulating gasket in a sealed portion in the cathode case or than the area of an opening in a sealed plate in a sealed portion in the cathode case, whereby the discharge capacity upon heavy-loading discharge is significantly increased as compared with the conventional cells. Accordingly, while the size of the cell is small, the discharge capacity is increased as described above, and thus it is possible to provide a highly utilizable flat non-aqueous electrolyte secondary cell. Further, in said flat non-aqueous electrolyte secondary cell, problems which may be caused by the increased discharge capacity in the cell can be solved by improving the solvent and supporting electrolyte for the electrolyte or by various improvements in the cathode and anode cases.

REFERENCES:
patent: 2971999 (1961-02-01), Jacquier
patent: 4356240 (1982-10-01), Dey et al.
patent: 4830940 (1989-05-01), Keister et al.
patent: 5707756 (1998-01-01), Inoue et al.
patent: 6312848 (2001-11-01), Kilb et al.
patent: 6617074 (2003-09-01), Watarai et al.
patent: 6638662 (2003-10-01), Kaneda et al.
patent: 1 011 163 (2000-06-01), None
patent: 08-031394 (1996-02-01), None
patent: 10-255733 (1998-09-01), None
patent: 10-289707 (1998-10-01), None
patent: 2000-164259 (2000-06-01), None

Affiliated with

Also associated with

Rating

Flat non-aqueous electrolyte secondary cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flat non-aqueous electrolyte secondary cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flat non-aqueous electrolyte secondary cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2809848