Sealed rechargeable battery

Details Sealed rechargeable battery Sealed rechargeable battery

2006-07-11

2009-08-11

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

C429S056000, C429S082000

Reexamination Certificate

active

07572544

ABSTRACT:
In a closure assembly for sealed rechargeable batteries, upon a metallic foil is placed a spacer having an aperture that is larger than an upwardly protruding portion of the foil but smaller than the outside diameter of the foil, and upon a metallic safety vent is placed either a spacer and a metallic cap, or a metallic cap only, the spacer and/or metallic cap having an aperture that is larger than a downwardly protruding portion of the safety vent but smaller than the outside diameter of the safety vent, so as to control and suppress deformation of the metallic foil and safety vent in the event of abnormal battery pressure increasing due to overcharging or the like and to ensure that rupture occurs at a predetermined pressure level, whereby a sealed rechargeable battery suitable for high-output applications and having high safety features is provided.

REFERENCES:
patent: 6078244 (2000-06-01), Quinn et al.
patent: 6242126 (2001-06-01), Mori et al.
patent: 6777128 (2004-08-01), Kim
patent: 08306351 (1996-11-01), None
patent: 11-339767 (1999-12-01), None

Affiliated with

Also associated with

Rating

Sealed rechargeable 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 Sealed rechargeable battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealed rechargeable battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4062378