公开(公告)号：EP1128454A3

公开(公告)日：2006-05-17

申请号：EP01103568.0

申请日：2001-02-20

申请人： MITSUBISHI MATERIALS CORPORATION ,  JAPAN VILENE COMPANY, LTD.

发明人： Imai, Hiroyuki, Central Research Institute ,  Yoshida, Kaori, Central Research Institute ,  Takase, Toshiaki, c/o Japan Vilene Comp.,ltd ,  Satou, Kazuya, c/o Japan Vilene Company, ltd

IPC分类号： H01M4/66 ,  H01M4/70

CPC分类号： H01M2/145 ,  H01M2/162 ,  H01M2/1686 ,  H01M4/661 ,  H01M4/70 ,  H01M10/24 ,  Y10T29/10 ,  Y10T442/188 ,  Y10T442/657

摘要： A hydrophilic collector for alkaline secondary batteries is formed of a nonwoven fabric plated with nickel in which the nonwoven fabric is hydrophilized by sulfonation, a gaseous fluorine treatment, or vinyl monomer grafting. A method for making the collector includes a hydrophilizing step of a nonwoven fabric comprising at least one of a polyolefin fiber and a polyamide fiber, and a plating step of applying nickel plating to the hydrophilic nonwoven fabric. Preferably, the nickel plating is electroless plating, and the nonwoven fabric has a plurality of micropores extending from one surface to the other surface thereof. An electroplating film may be deposited on the electroless plated film, if necessary. This collector facilitates assembling a battery which exhibits improved high-rate discharge characteristics due to improved adhesiveness of the plated nickel film to the nonwoven fabric.