Tubular solid oxide fuel cell current collector

Patent · 20 July 2010

OSTI ID:1012822

Bischoff, Brian L ^[1]; Sutton, Theodore G ^[2]; Armstrong, Timothy R ^[3]

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1. Knoxville, TN
2. Kingston, TN
3. Clinton, TN

An internal current collector for use inside a tubular solid oxide fuel cell (TSOFC) electrode comprises a tubular coil spring disposed concentrically within a TSOFC electrode and in firm uniform tangential electrical contact with the electrode inner surface. The current collector maximizes the contact area between the current collector and the electrode. The current collector is made of a metal that is electrically conductive and able to survive under the operational conditions of the fuel cell, i.e., the cathode in air, and the anode in fuel such as hydrogen, CO, CO.sub.2, H.sub.2O or H.sub.2S.

• Research Organization: Worldwide Energy, Inc. of Delaware (Oak Ridge, TN)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• Assignee: Worldwide Energy, Inc. of Delaware (Oak Ridge, TN)
• Patent Number(s): 7,758,993
• Application Number: 11/171,655
• OSTI ID: 1012822
• Country of Publication: United States
• Language: English