Title:
TITANIUM MATERIAL FOR SEPARATOR OF POLYMER ELECTROLYTE FUEL CELL, SEPARATOR COMPRISING SAME, AND POLYMER ELECTROLYTE FUEL CELL EQUIPPED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2015/194356
Kind Code:
A1
Abstract:
This titanium material comprises: a platy base constituted of titanium or a titanium alloy and having a rough surface in which fine projections have been formed; a surface oxide coating film formed along the rough surface and comprising titanium oxides; and a tip coating comprising a noble metal and formed on the surface oxide coating film in regions containing tips of the fine projections. The surface oxide coating film gives an X-ray diffraction intensity curve wherein the value of ITiO/(ITi+ITiO)×100, obtained from the maximum intensity, ITiO, of diffraction peaks assigned to TiO and the maximum intensity, ITi, of diffraction peaks assigned to Ti metal, is 0.5% or greater.
Inventors:
IMAMURA JUNKO (JP)
TOKUNO KIYONORI (JP)
KAGAWA TAKU (JP)
KIMOTO MASANARI (JP)
MASAKI YASUHIRO (JP)
TOKUNO KIYONORI (JP)
KAGAWA TAKU (JP)
KIMOTO MASANARI (JP)
MASAKI YASUHIRO (JP)
Application Number:
PCT/JP2015/065793
Publication Date:
December 23, 2015
Filing Date:
June 01, 2015
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
H01M8/02; H01M8/10
Domestic Patent References:
| WO2010038544A1 | 2010-04-08 |
Foreign References:
| JP2007103075A | 2007-04-19 | |||
| JP2008108490A | 2008-05-08 | |||
| JP2005302713A | 2005-10-27 | |||
| JP2010238577A | 2010-10-21 |
Other References:
See also references of EP 3139431A4
Attorney, Agent or Firm:
HAGIWARA, Yasushi et al. (JP)
Yasushi Hagiwara (JP)
Yasushi Hagiwara (JP)
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