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:
Apr. 07, 2008
Filed:
Aug. 11, 2003
Kiichi Koike, Kanagawa-ken, JP;
Harumi Murochi, Aichi-ken, JP;
Masahito Ishiwata, Aichi-ken, JP;
Hiroyuki Jimbo, Aichi-ken, JP;
Norio Saito, Hyogo-ken, JP;
Kiichi Koike, Kanagawa-ken, JP;
Harumi Murochi, Aichi-ken, JP;
Masahito Ishiwata, Aichi-ken, JP;
Hiroyuki Jimbo, Aichi-ken, JP;
Norio Saito, Hyogo-ken, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A method for charging a secondary battery by measuring the static/open circuit voltage and comparing it to a predetermined value includes: a first step of precharging the secondary battery; thereafter pausing a predetermined interval; a step of measuring a secondary battery voltage Vba1 after performing the pausing; and a step of charging the secondary battery based on the measurement of the secondary battery voltage Vba1.