The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2003
Filed:
Mar. 29, 2001
Applicant:
Inventor:
John Skoumpris, Amherst, NY (US);
Assignee:
Wilson Greatbatch Ltd., Clarence, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/06 ;
U.S. Cl.
CPC ...
H01M 2/06 ;
Abstract
The present invention provides a new process for attaching the anode lead to the battery case, creating a case negative design. The anode lead is an extension of the anode current collector and is nested between the case and the lid. Excess lead material is ground or cut off and the case to lid seal is achieved by laser/electron beam welding. The new procedure enhances the hermicity of the cell and the new process is applicable to a number of additional applications. This includes primary lithium batteries, implantable batteries, lithium based rechargeable cells, also acid or alkaline based batteries.