Title:
TITANIUM PLATE MATERIAL FOR FUEL CELL SEPARATORS AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2014/156673
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a titanium plate material for fuel cell separators, which is capable of surely achieving low contact resistance. A titanium plate material for fuel cell separators according to the present invention is formed of a titanium base layer and a surface layer, and the titanium base layer has a recrystallized structure. The surface layer is formed only of a compound mixed titanium layer which has a thickness of less than 1 μm, and wherein a compound composed of Ti and one or more elements selected from among O, C and N is mixed in a Ti matrix in which O, C and N are solid-solved, or alternatively, the surface layer is formed of the compound mixed titanium layer and a passivation film that is formed on the surface of the compound mixed titanium layer and has a thickness of less than 5 nm.
Inventors:
ITSUMI YOSHIO
OYAMA HIDETO
MAEDA YASUSHI
HAYASHI DAISUKE
SUZUKI JUN
OYAMA HIDETO
MAEDA YASUSHI
HAYASHI DAISUKE
SUZUKI JUN
Application Number:
PCT/JP2014/056626
Publication Date:
October 02, 2014
Filing Date:
March 13, 2014
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
H01M8/02; B21B1/22; B21B3/00; C22F1/18; C22F1/00; H01M8/10
Domestic Patent References:
| WO2007119842A1 | 2007-10-25 |
Foreign References:
| JP2010135232A | 2010-06-17 | |||
| JP2010248570A | 2010-11-04 | |||
| JP2012043776A | 2012-03-01 |
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
Hisakazu Ueki (JP)
Hisakazu Ueki (JP)
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