Title:
TITANIUM MATERIAL, SEPARATOR, CELL, AND SOLID POLYMER FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2018/123690
Kind Code:
A1
Abstract:
Provided is a titanium material comprising: a matrix which comprises pure titanium or a titanium alloy; and a titanium oxide film formed on the matrix. The peak strength, obtained by thin-film X-ray diffraction analysis of a surface layer of the titanium material at an angle of incidence of 0.3°, satisfies the condition (I (104) + I (200)) / I (101) ≥ 0.08 − 0.004 × I (200), where I (104) is the peak strength based on the Ti2O3 phase (104) plane, I (200) is the peak strength based on the TiO phase (200) plane, I (101) is the peak strength based on the α-Ti (101) plane, 0 < I (104), 0 ≤ I (200), and 0 < I (101). This titanium material is low in cost and provides both conductivity and corrosion resistance.
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Inventors:
KAMINAKA HIDEYA (JP)
NISHIYAMA YOSHITAKA (JP)
NOSE KOICHI (JP)
IMAMURA JUNKO (JP)
SATO HARUKA (JP)
NISHIYAMA YOSHITAKA (JP)
NOSE KOICHI (JP)
IMAMURA JUNKO (JP)
SATO HARUKA (JP)
Application Number:
PCT/JP2017/045328
Publication Date:
July 05, 2018
Filing Date:
December 18, 2017
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
H01M8/0206; C23C8/12; C25D11/26; H01M8/0228; H01M8/10
Domestic Patent References:
| WO2010038544A1 | 2010-04-08 | |||
| WO2017169712A1 | 2017-10-05 |
Foreign References:
| JP2016095981A | 2016-05-26 | |||
| JP2010027262A | 2010-02-04 | |||
| JP2009087909A | 2009-04-23 | |||
| JP2009295346A | 2009-12-17 | |||
| JP2010045052A | 2010-02-25 | |||
| JPH03294471A | 1991-12-25 |
Other References:
"Novel Approach to Designing Nanostructured Reduced Titanium Oxides for A Wide Range of Applications", NATIONAL INSTITUTE FOR MATERIALS SCIENCE, 6 July 2011 (2011-07-06)
"New electrically conductive ceramic - A fundamental advance in electrode technology", AM LAB, vol. 20, no. 6-A, pages 8,10
TOSHIKI SATO: "Characteristics of Titanium Separator with Graphite Coating for Polymer Electrolyte Fuel Cell", KOBE STEEL ENGINEERING REPORTS, vol. 65, no. 2, September 2015 (2015-09-01)
TERUICHIRO KUBO: "The Reaction Mechanism of Formation of Titanium Carbide under Vacuum", THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY, vol. 63, no. 1, 1960, pages 64 - 70
"New electrically conductive ceramic - A fundamental advance in electrode technology", AM LAB, vol. 20, no. 6-A, pages 8,10
TOSHIKI SATO: "Characteristics of Titanium Separator with Graphite Coating for Polymer Electrolyte Fuel Cell", KOBE STEEL ENGINEERING REPORTS, vol. 65, no. 2, September 2015 (2015-09-01)
TERUICHIRO KUBO: "The Reaction Mechanism of Formation of Titanium Carbide under Vacuum", THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY, vol. 63, no. 1, 1960, pages 64 - 70
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
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