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Patent Searching and Data


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)
Application Number:
PCT/JP2016/056580
Publication Date:
September 09, 2016
Filing Date:
March 03, 2016
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
H01M8/0202; C23C8/12; C23C22/34; C23C28/04; H01M8/10
Domestic Patent References:
WO2008041560A12008-04-10
WO2003026052A12003-03-27
Foreign References:
JP2009228123A2009-10-08
JP2009238438A2009-10-15
Other References:
See also references of EP 3267521A4
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
patent business corporation Bligh -- TASS (JP)
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