Pouch cell construction

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C429S122000, C429S162000, C429S231950, C429S233000

Reexamination Certificate

active

07629077

ABSTRACT:
An electrode assembly is formed by respectively overlaying a sheet cathode1, a sheet separator3and a double-sided sheet anode8to form a stacked structure10, and subjecting the stacked structure to multiple folds, wherein the initial fold comprises folding the cathode in half around the double-sided anode so as to surround the respective upper and lower active anode surfaces thereof. The multiple folds may comprise one or more subsequent parallel folds made with the fold line D-D extending perpendicular to the original length of the stacked structure such that its overall length is halved at each fold. A pouch battery comprising said electrode assembly has improved safety and performance characteristics. The pouch battery construction has especial application to lithium primary batteries.

REFERENCES:
patent: 4761352 (1988-08-01), Bakos et al.
patent: 5156932 (1992-10-01), Dougherty et al.
patent: 6190426 (2001-02-01), Thibault et al.
patent: 6287721 (2001-09-01), Xie et al.
patent: 2001/0003863 (2001-06-01), Thibault et al.
patent: 2003/0031925 (2003-02-01), During
patent: 2003/0162086 (2003-08-01), Longhi, Jr. et al.
patent: 2003/0194604 (2003-10-01), Aamodt et al.
patent: 0 642 186 (1995-03-01), None
patent: 2 002 949 (1979-02-01), None
patent: 2 095 462 (1982-09-01), None
patent: 07-085865 (1995-03-01), None
patent: 10-340740 (1998-12-01), None
patent: 2001-76732 (2001-03-01), None
patent: WO 96/07213 (1996-03-01), None
patent: WO 01/97315 (2001-12-01), None
Giwa et al, “Scale-Up of Lithium/Carbon Monofluoride Envelope Cells”, Proceedings of the 39th Power Sources Conference, Jun. 2000, p. 32-35.
Giwa et al, “Further Development of Lithium/Polycarbon Monofluoride Envelope Cells”, Journal of Power Sources 96 (2001) 180-183.
Giwa et al, “Lithium Primary Envelope Cells”, 16thInternational Seminar and Exhibit on Primary and Secondary Batteries, Fort Lauderdale, Florida, Mar. 1999.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Pouch cell construction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pouch cell construction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pouch cell construction will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4112920

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.