Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 23, 2010
Patent Application Number
11592628
Date Filed
November 3, 2006
Patent Primary Examiner
Patent abstract
Batteries are disclosed having a vent opening that is sealed by a metal foil. Methods and tooling for manufacturing such batteries and methods of venting sealed batteries are also disclosed. In some implementations, sealing is performed using ultrasonic metal welding.
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