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. 13, 1998
Filed:
Aug. 19, 1996
Applicant:
Inventors:
Girish R Harshe, Wheeling, IL (US);
Darioush Keyvani, Chicago, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429-9 ; 429-7 ; 361434 ; 361503 ; 361525 ;
Abstract
A power source (10) , preferably in the form of a battery pack, comprises a battery (14), an electrochemical capacitor (16), and a switch bridge (18). The capacitor increases the power delivery capability of the battery for periodic power bursts, increases it's life, and is electrically connected in parallel with the battery through a number of switches. The switch bridge is used to periodically reverse the orientation of the capacitor with respect to the battery to alleviate electrical stress on the capacitor.