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:
Oct. 05, 2004
Filed:
Dec. 20, 2002
Applicant:
Inventors:
Steven Davis, Batavia, NY (US);
Esther S. Takeuchi, East Amherst, NY (US);
Assignee:
Wilson Greatbatch Technologies, Inc., Clarence, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 ;
U.S. Cl.
CPC ...
H02J 7/00 ;
Abstract
A battery pack having a first secondary cell and a second secondary cell, preferably of a non-aqueous chemistry, is described. Each secondary cell has a discharge capacity and an internal resistance to a direct charge current. To diminish and alleviate problems associated with extended cycling of battery packs, the internal resistance to the direct charge current and the discharge capacity of each secondary cell is substantially matched. Thereby, the battery packs have longer running voltages and increased energy density.