Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-02-17
2009-08-18
Ryan, Patrick (Department: 1795)
Metal working
Method of mechanical manufacture
Electrical device making
C429S472000
Reexamination Certificate
active
07575606
ABSTRACT:
A method for producing lithium ion secondary batteries includes the steps of: (A) preparing an electrode sheet with lead-forming parts, (B) intermittently forming porous insulating layers containing an inorganic oxide filler and a binder on a surface of the electrode sheet excluding the lead-forming parts, (C) connecting a lead to each of the lead-forming parts, and (D) fabricating batteries by using the electrode sheet to which the leads are connected. The step B includes: the step of applying a slurry containing the inorganic oxide filler and the binder to the outer surface of a gravure roll, and transferring the slurry applied to the outer surface of the gravure roll on a surface of the electrode sheet that is being transported by a plurality of guide rolls excluding the lead-forming part; and the step of moving at least one selected from the gravure roll and the guide rolls to make the electrode sheet away from the gravure roll in the lead-forming part.
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European Search Report issued in European Patent Application No. EP 05 71 9209, mailed Aug. 23, 2007.
Fukumoto Yusuke
Hayashi Tetsuya
Ohata Tsumoru
Martin Angela J.
McDermott Will & Emery LLP
Panasonic Corporation
Ryan Patrick
LandOfFree
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