Title:
STAINLESS STEEL FOR FUEL CELL SEPARATOR AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/121132
Kind Code:
A1
Abstract:
The present invention relates to a metal material, for a fuel cell separator, having: five or more fine protrusions of 10-100nm on the metal material surface coming into contact with a GDL in a fuel cell; and a real surface length/apparent surface length without protrusions ratio of 1.15 relative to a cross section observed under a transmission electron microscope. The metal material is characterized by having a contact resistance of 10 mΩ·cm2 or less by forming fine protrusions on the surface.
Inventors:
KIM KWANGMIN (KR)
KIM DONGHOON (KR)
SEO BOSUNG (KR)
KIM JONGHEE (KR)
KIM DONGHOON (KR)
SEO BOSUNG (KR)
KIM JONGHEE (KR)
Application Number:
PCT/KR2022/020356
Publication Date:
June 29, 2023
Filing Date:
December 14, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
H01M8/021
Domestic Patent References:
| WO2018043285A1 | 2018-03-08 | |||
| WO2019058409A1 | 2019-03-28 |
Foreign References:
| KR20140039326A | 2014-04-01 | |||
| KR20210147646A | 2021-12-07 | |||
| KR20210100762A | 2021-08-17 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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