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:
Aug. 03, 1999
Filed:
Sep. 10, 1997
Eiji Agatsuma, Saitama, JP;
Osamu Saito, Saitama, JP;
Hideharu Takemoto, Saitama, JP;
Kenji Matsumoto, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Eight storage battery cells 11.sub.1 to 11.sub.8 making up a storage battery cell group 2 can be connected selectively to a voltage-correcting storage battery 12 through nine cell change-over switches 13.sub.1 to 13.sub.9, four polarity-inverting switches 14.sub.1 to 14.sub.4 and a current-limiting resistor 15. When the voltages of two or more of the storage battery cells 11.sub.1 to 11.sub.8 are different, the voltages of each of the storage battery cells 11.sub.1 to 11.sub.8 can be equalized by then transferring the charge from a storage battery cell high in voltage to the voltage-correcting storage battery 12 and by transferring the charge of that voltage-correcting storage battery 12 to a storage battery cell low in voltage. As a result, the voltage difference due to the performance variations among the individual storage battery cells 11.sub.1 to 11.sub.8 can be obviated thereby to increase the working voltage range of the storage battery cell group 2 as a whole.