Laser-sealed battery

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

429170, 429169, 429211, H01M 206, H01M 226

Patent

active

058341331

ABSTRACT:
A battery is provided which includes: an electrode roll having a positive-electrode plate, a negative-electrode plate and a separator interposed therebetween; a battery casing accommodating the electrode roll; and a sealing plate laser-welded to an open end of the battery casing. On the outermost periphery of the electrode roll is located an electrode-base-exposed portion of either one of the positive-electrode plate and the negative-electrode plate. The sealing plate is laser-welded to the battery casing in a state that a collector tab formed by incising the electrode-base-exposed portion and folding the incised portion is held between the periphery of the open end of the battery casing and the sealing plate. With this construction, the electrical connection between the collector tab and the battery casing is assuredly achieved simultaneously with the sealing of the battery to suppress a reduction in the closed-circuit voltage and an increase in the internal resistance. In addition, the battery of this construction can be fabricated by a simplified battery fabrication process.

REFERENCES:
patent: 4663248 (1987-05-01), Klein et al.
patent: 4761352 (1988-08-01), Bakos et al.
patent: 5154993 (1992-10-01), Beatty
patent: 5162170 (1992-11-01), Miyabayashi et al.
patent: 5434017 (1995-07-01), Berkowitz et al.
patent: 5443925 (1995-08-01), Machida et al.
patent: 5585206 (1996-12-01), Morris

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

Laser-sealed battery does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1514912

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