H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/02 (2006.01) H01M 2/16 (2006.01)
Patent
CA 2460187
Gold is coated on a surface of a stainless steel plate containing an intermetallic compound forming element which forms an intermetallic compound by reacting with gold, and then the entirety is heated to form an intermetallic compound layer comprising the intermetallic compound at the interface between the stainless steel plate and the gold coated layer. In this way, exfoliation of the gold coated layer which is arranged on the surface of the stainless steel plate to obtain extremely high corrosion resistance can be prevented for a long time, and thus great durability can be maintained.
L'invention concerne un procédé de préparation d'un séparateur de pile à combustible, consistant à former, sur la surface d'une plaque d'acier inoxydable, une couche d'un élément métallique pouvant réagir avec de l'or afin de produire un composé intermétallique, à recouvrir d'or la surface de la couche de l'élément métallique, puis à chauffer l'ensemble afin de former une couche de composé intermétallique à l'interface entre la plaque d'acier inoxydable et la couche d'or. Le séparateur d'acier inoxydable ainsi préparé comporte une couche de placage d'or qui ne se décolle pas, ce qui lui confère à la fois une résistance à la corrosion extrêmement élevée, et une durabilité satisfaisante.
Ohtani Teruyuki
Tsuji Makoto
Utsunomiya Masao
Honda Giken Kogyo Kabushiki Kaisha
Smart & Biggar
LandOfFree
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