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:
Dec. 06, 2005
Filed:
Sep. 22, 2004
Hiroshi Inoue, Toyohashi, JP;
Kiwamu Inui, Okazaki, JP;
Mitsugu Takaki, Toyohashi, JP;
Shinichi Hojioka, Fujisawa, JP;
Hiroshi Inoue, Toyohashi, JP;
Kiwamu Inui, Okazaki, JP;
Mitsugu Takaki, Toyohashi, JP;
Shinichi Hojioka, Fujisawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A workpiece, in which a lead is laid on top of a three-dimensional porous metal body, is placed between an ultrasonic horn and an anvil with a lead portion facing the ultrasonic horn. A support is raised so that the lead portion of the workpiece is pressed between the ultrasonic horn and the anvil. While being rotated around a central shaft with a motor, the ultrasonic horn vibrates at a frequency of 20 kHz in the shaft direction. Thus, the workpiece is advanced continuously, so that the lead is bonded ultrasonically to the three-dimensional porous metal body (i.e., metal-to-metal bonding is established). It is possible to provide a battery electrode that can be produced continuously at a lower running cost, reduce the faulty welding with a current collecting plate, and prevent short-circuits.