Freeze Casting of Tubular Sulfur Tolerant Materials for Solid Oxide Fuel Cells

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-14-P-0029
Agency Tracking Number: A14A-011-0171
Amount: $149,974.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: A14A-T011
Solicitation Number: 2014.A
Timeline
Solicitation Year: 2014
Award Year: 2014
Award Start Date (Proposal Award Date): 2014-09-10
Award End Date (Contract End Date): 2015-03-14
Small Business Information
631 Barbrow Lane, Knoxville, TN, -
DUNS: 964860451
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Drew Spradling
 Director, Product Development
 (865) 966-2170
 drew.spradling@millennitek.com
Business Contact
 Anna Tilley
Title: CFO
Phone: (865) 966-2170
Email: anna.tilley@millennitek.com
Research Institution
 Georgia Institute of Technology
 Meilin Liu
 School of Materials Science
771 Ferst Drive
Atlanta, GA, 30332-0245
 (404) 894-6114
 Nonprofit college or university
Abstract
Solid oxide fuel cells have long suffered from degradation due to impurities in the fuel and complexities associated with dissimilar materials and high operating temperatures. This degradation lowers the usable cell power output and requires ancillary equipment for fuel sulfur removal and reformation. A unique microstructure for the tubular anode will be produced using a novel freeze-casting technique, which will increase the cell triple phase boundary area and result in higher power density. An infiltration of the freeze-cast anode with a newly discovered mixed metal oxide catalyst promises to significantly increase the sulfur and coking tolerance of the anode. In the proposed effort, anode tubes will be produced using varying freeze casting formulations and parameters to optimize the pore morphology and then infiltrated with the novel catalyst material. Single-cell performance tests will be completed, and a conceptual 250W man-portable design will be developed.

* Information listed above is at the time of submission. *

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