Title:
STAINLESS STEEL FOR FUEL CELL SEPARATOR HAVING EXCELLENT THROUGH-PLANE ELECTRICAL CONDUCTIVITY AND CORROSION RESISTANCE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/124788
Kind Code:
A1
Abstract:
According to an embodiment of stainless steel for a fuel cell separator, having excellent through-plane electrical conductivity and corrosion resistance, according to the present specification, when the surface of the stainless steel containing 15 wt% or greater of Cr is measured at a condition of a photoelectron take-off angle of 12° by X-ray angle-resolved photoelectron spectroscopy using an Al-Kα X-ray source, a measured value of the surface oxide element ratio (1) below may be 0.5-5, and a measured value of the surface oxide element ratio (2) below may be 0.5 or less. [Formula 1]
Inventors:
KIM JONGHEE (KR)
KIM JINSUK (KR)
SEO BOSUNG (KR)
KIM KWANGMIN (KR)
KIM JINSUK (KR)
SEO BOSUNG (KR)
KIM KWANGMIN (KR)
Application Number:
PCT/KR2021/018522
Publication Date:
June 16, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
POSCO (KR)
International Classes:
H01M8/021; C22C38/18; C25D9/10; C25D11/34; H01M8/0228
Foreign References:
| JP2004149920A | 2004-05-27 | |||
| KR20170035374A | 2017-03-31 | |||
| KR102068479B1 | 2020-01-22 | |||
| JP2002075399A | 2002-03-15 | |||
| KR20150074768A | 2015-07-02 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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