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:
Sep. 15, 1998
Filed:
Sep. 27, 1996
Applicant:
Inventors:
Osamu Kaite, Tsuna-gun, JP;
Toshiaki Okuyama, Mihara, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
320 15 ; 320 16 ; 320-2 ; 320 39 ;
Abstract
In the method of charging a plurality of lithium ion rechargeable batteries, if another battery is attached during battery charging, open circuit voltages of those respective batteries are measured and compared. When the open circuit voltage of the battery attached later is greater than that of the battery being charged, charging of the previously attached battery is suspended and the battery attached later is given priority and charged. When the open circuit voltage of the battery being charged is greater than that of the battery attached later, the battery being charged is given priority and charged.