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Title:
燃料電池セパレーター用塗料
Document Type and Number:
Japanese Patent JP5036052
Kind Code:
B2
Abstract:

To provide a coating material for a fuel cell separator, capable of forming an electroconductive coating film having proper corrosion resistance, electrical conductivity, and strong adherence.

In the coating material for the fuel cell separator forming the electroconductive coating film, by using graphite as an electroconductive material and applying on the surface of a metallic or carbon separator for the fuel cell, 5 wt.% or higher one among the emulsions of styrene-butadine copolymer, acrylic-styrene copolymer, and acylic-silicone copolymer is contained as a binder for the coating material, a solvent having solubility with the binder is used as a medium, the mixing ratio of the electroconductive material and the binder is set at 20:80 to 95:5, and the solid content in the coating material is set at 10-60 wt.%.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
Masahiro Okahara
Minoru Shirahige
Application Number:
JP2007261623A
Publication Date:
September 26, 2012
Filing Date:
October 05, 2007
Export Citation:
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Assignee:
Hitachi Powdered Metals Co., Ltd.
International Classes:
H01M8/02; C09D5/02; C09D5/24; C09D7/12; C09D109/08; C09D125/08; C09D125/10; C09D133/00; C09D183/04; H01B1/24; H01M8/10
Domestic Patent References:
JP2000058083A
Foreign References:
WO2003044888A1
Attorney, Agent or Firm:
Suenari Mikio