Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-12-06
2005-12-06
Barr, Michael (Department: 1746)
Metal working
Method of mechanical manufacture
Electrical device making
C429S213000, C429S235000, C429S236000, C429S245000, C029S002000
Reexamination Certificate
active
06972044
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.
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Hojioka Shinichi
Inoue Hiroshi
Inui Kiwamu
Takaki Mitsugu
Barr Michael
Hamre Schumann Mueller & Larson P.C.
Hodge Robert
Toyota Jidosha & Kabushiki Kaisha
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