Durable, Impermeable Brazes for Solid Oxide Fuel Cells

 

Figure 1: Side view of a Delphi SOFC cell brazed<br/>to its ferritic stainless steel picture frame
Figure 1: Side view of a Delphi SOFC cell brazed
to its ferritic stainless steel picture frame
Performer: 
Michigan State University - Admin. Bldg.
Website:  Michigan State University
Award Number:  FE0023315
Project Duration:  10/01/2014 – 09/30/2018
Total Award Value:  $898,799
DOE Share:  $694,026
Performer Share:  $204,773
Technology Area:  Solid Oxide Fuel Cells
Key Technology: 
Location:  East Lansing, Michigan

Project Description

Michigan State University (MSU) will team with Delphi Automotive Systems (Delphi) to design and test new solid oxide fuel cell (SOFC)-compatible, silver-free brazes to form durable, oxygen- and hydrogen-impermeable protective surface scales. The team will use a combined computational-experimental approach to develop new braze compositions. In addition to instituting a new paradigm for braze development and generating a wealth of important, fundamental material property data, this work will provide new brazes specifically designed to withstand the extremes in temperature, time, atmosphere, and thermal cycling encountered in SOFC operation.

Project Benefits

MSU and Delphi will use a combined simulation-experimental approach to design and test new, SOFC-compatible, silver-free brazes forming durable, oxygen- and hydrogen-impermeable protective surface scales. The new brazes will solve the long-term metal degradation issues encountered with silver-based SOFC brazes in dual atmosphere environments (see Figure 1), resulting in extended SOFC life and lower SOFC costs. The reduced materials costs of these new non-precious-metal brazes will also reduce SOFC stack costs.

Contact Information

Federal Project Manager 
Joseph Stoffa: joseph.stoffa@netl.doe.gov
Technology Manager 
Shailesh Vora: shailesh.vora@netl.doe.gov
Principal Investigator 
Jason Nicholas: jdn@msu.edu
 

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