Title:
TITANIUM MATERIAL, SEPARATOR, SOLID HIGH-POLYMER FUEL CELL, AND TITANIUM-MATERIAL MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/140306
Kind Code:
A1
Abstract:
A titanium material for a separator of a solid high-polymer fuel cell according to the present invention is provided with: a base material formed of industrial pure titanium; a first oxide layer that is formed at the surface layer of the titanium material, that is formed of rutile-type crystalline TiO2, and that has a thickness of 0.1 to 1.5 nm; and a second oxide layer that is formed between the base material and the first oxide layer, that is formed of TiOx (1 < x < 2), and that has a thickness of 3 to 20 nm. This titanium material is suitable for use in a separator that exhibits high corrosion resistance in the environment inside a solid high-polymer fuel cell, that can maintain low contact resistance with respect to electrodes formed of carbon fibers or the like, and that is inexpensive.
Inventors:
IMAMURA JUNKO (JP)
NISHIYAMA YOSHITAKA (JP)
MASAKI YASUHIRO (JP)
MAKI JUN (JP)
TANIGUCHI SHUNSUKE (JP)
KAMINAKA HIDEYA (JP)
NISHIYAMA YOSHITAKA (JP)
MASAKI YASUHIRO (JP)
MAKI JUN (JP)
TANIGUCHI SHUNSUKE (JP)
KAMINAKA HIDEYA (JP)
Application Number:
PCT/JP2016/056580
Publication Date:
September 09, 2016
Filing Date:
March 03, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
H01M8/0202; C23C8/12; C23C22/34; C23C28/04; H01M8/10
Domestic Patent References:
WO2008041560A1 | 2008-04-10 | |||
WO2003026052A1 | 2003-03-27 |
Foreign References:
JP2009228123A | 2009-10-08 | |||
JP2009238438A | 2009-10-15 |
Other References:
See also references of EP 3267521A4
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
patent business corporation Bligh -- TASS (JP)
patent business corporation Bligh -- TASS (JP)
Download PDF: