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. 19, 2006
Filed:
May. 16, 2003
Hiromi Takaoka, Hyogo, JP;
Shigetomo Matsui, Hyogo, JP;
Yutaka Iuchi, Hyogo, JP;
Taneo Nishino, Hyogo, JP;
Osamu Nakamura, Osaka, JP;
Hiromi Takaoka, Hyogo, JP;
Shigetomo Matsui, Hyogo, JP;
Yutaka Iuchi, Hyogo, JP;
Taneo Nishino, Hyogo, JP;
Osamu Nakamura, Osaka, JP;
The New Industry Research Organization, Kyogo, JP;
Techno Core International Co., Ltd., Osaka, JP;
Abstract
An equipment and method for charging a secondary battery are provided to quickly and surely charge a secondary battery (secondary batteries) while preventing the secondary battery (batteries) from overcharging or insufficient charging. Special charging voltage Eis applied to a secondary battery for a predetermined time, and then the applied voltage is switched to equilibrium voltage Efor establishing equilibrium cell potential of the secondary battery in its fully charged condition, wherein the special charging value Eis larger than the equilibrium value E. Electric current i is detected while application of the equilibrium voltage E. If the detected electric current i is larger than standard electric current J for finishing charging, the above detection and charging are repeated; otherwise, charge of the secondary batteryis halted.