Invention Grant
- Patent Title: Fuel cell interconnect with iron rich rib regions and method of making thereof
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Application No.: US16930044Application Date: 2020-07-15
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Publication No.: US11335914B2Publication Date: 2022-05-17
- Inventor: Harald Herchen , Cheng-Yu Lin , Tad Armstrong
- Applicant: BLOOM ENERGY CORPORATION
- Applicant Address: US CA San Jose
- Assignee: BLOOM ENERGY CORPORATION
- Current Assignee: BLOOM ENERGY CORPORATION
- Current Assignee Address: US CA San Jose
- Agency: The Marbury Law Group PLLC
- Main IPC: H01M4/88
- IPC: H01M4/88 ; H01M4/86 ; H01M8/0215 ; H01M8/2425 ; H01M8/1246 ; H01M8/12

Abstract:
A method of making an interconnect for a solid oxide fuel cell stack includes providing an iron rich material containing at least 25 wt. % iron into channels of a mold, providing a powder containing 4-6 wt. % Fe, 0-1 wt. % Y and balance Cr into the mold over the iron rich material containing at least 25 wt. % iron, compacting the iron rich material containing at least 25 wt. % iron and the powder comprising 4-6 wt. % Fe, 0-1 wt. % Y and balance Cr in the mold to form the interconnect, and sintering the interconnect to form a sintered interconnect having iron rich regions having an iron concentration greater than 10% in ribs of the interconnect.
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