Invention Grant
- Patent Title: Stainless steel sheet for fuel cell separators and production method therefor
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Application No.: US16489881Application Date: 2018-04-02
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Publication No.: US11085120B2Publication Date: 2021-08-10
- Inventor: Takayoshi Yano , Shin Ishikawa
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Kenja IP Law PC
- Priority: JPJP2017-086366 20170425
- International Application: PCT/JP2018/014154 WO 20180402
- International Announcement: WO2018/198685 WO 20181101
- Main IPC: B21D39/00
- IPC: B21D39/00 ; C23F17/00 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/42 ; C22C38/44 ; C22C38/48 ; C22C38/50 ; C23F1/28 ; C25F1/06 ; H01M8/021 ; H01M8/0247
Abstract:
A stainless steel sheet for fuel cell separators comprises a predetermined chemical composition, wherein the stainless steel sheet has a textured structure at a surface thereof, an average interval between projected parts of the textured structure being 20 nm or more and 200 nm or less, and a ratio [Cr]/[Fe] of an atomic concentration of Cr existing in chemical form other than metal to an atomic concentration of Fe existing in chemical form other than metal at the surface of the stainless steel sheet is 2.0 or more.
Public/Granted literature
- US20200340126A1 STAINLESS STEEL SHEET FOR FUEL CELL SEPARATORS AND PRODUCTION METHOD THEREFOR Public/Granted day:2020-10-29
Information query
