Title:
TITANIUM FOIL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/054072
Kind Code:
A1
Abstract:
This titanium foil 14 is provided with: a substrate layer 1 having a chemical composition including 0.080 mass% or less of C, 0.013 mass% or less of H, 0.40 mass% or less of O, 0.050 mass% or less of N, 0.50 mass% or less of Fe, and the balance being Ti and impurities; and a surface layer 20 which has conductivity and is formed on the surface of the substrate layer 1. The surface layer 20 is a Ti compound including a TiN compound 21 and a TiO compound 23 and not including a TiC compound. This titanium foil 14 exhibits excellent conductivity and corrosion resistance even in a harsh use environment in which a fuel cell has an increased capacity and decreased size and is exposed to higher temperatures, and is thus suitable to be used for a separator in a solid polymer fuel cell.
Inventors:
KAGAWA TAKU (JP)
IIJIMA TAKASHI (JP)
TOKUNO KIYONORI (JP)
TAKAHASHI KAZUHIRO (JP)
NEGI NORIYUKI (JP)
IIJIMA TAKASHI (JP)
TOKUNO KIYONORI (JP)
TAKAHASHI KAZUHIRO (JP)
NEGI NORIYUKI (JP)
Application Number:
PCT/JP2018/034274
Publication Date:
March 19, 2020
Filing Date:
September 14, 2018
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
H01M8/0228; C22C14/00; C22F1/18; C23C8/24; C23C28/04; H01M8/0208; H01M8/0215; H01M8/10; C22F1/00; C23C22/06
Domestic Patent References:
| WO2011016465A1 | 2011-02-10 | |||
| WO2010140700A1 | 2010-12-09 | |||
| WO2010038544A1 | 2010-04-08 | |||
| WO2009034845A1 | 2009-03-19 |
Foreign References:
| JP2018104808A | 2018-07-05 | |||
| JPH0568537B2 | 1993-09-29 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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