Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with solid electrolyte
Reexamination Certificate
2011-04-12
2011-04-12
Alejandro, Raymond (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Fuel cell with solid electrolyte
C429S495000, C427S115000
Reexamination Certificate
active
07923165
ABSTRACT:
An electronically insulating proton conductor (C) is adhered or deposited as a film on a dense phase proton permeable material (D) in a thicknees such that the composite C/D has a proton conductivity in a preferred intermediate temperature range of 175-550° C. The composite C/D is incorporated in a high temperature electrolyte membrane electrolyte assembly (MEA), which is incorporated into a fuel cell that can operate in this intermediate temperature range. The fuel cell in turn is incorporated into a fuel cell system having a fuel reformer in the flow field of a fuel mixture entering the fuel cell or in a mode where the fuel cell receives fuel from an external reformer.
REFERENCES:
patent: 4820386 (1989-04-01), LaConti et al.
patent: 5094927 (1992-03-01), Baucke et al.
patent: 5658681 (1997-08-01), Sato et al.
patent: 5759712 (1998-06-01), Hockaday
patent: 5830343 (1998-11-01), Hintsche et al.
patent: 5846669 (1998-12-01), Smotkin et al.
patent: 5856036 (1999-01-01), Smotkin et al.
patent: 5863395 (1999-01-01), Mah et al.
patent: 5879828 (1999-03-01), Debe et al.
patent: 5985113 (1999-11-01), Crome et al.
patent: 6083636 (2000-07-01), Hsu
patent: 6136412 (2000-10-01), Spiewak et al.
patent: 6156184 (2000-12-01), Antonucci et al.
patent: RE37042 (2001-02-01), Trainham, III et al.
patent: 6183895 (2001-02-01), Kudo et al.
patent: 6187164 (2001-02-01), Warren et al.
patent: 2002/0034672 (2002-03-01), Saito et al.
patent: 1553361 (1969-01-01), None
patent: 62122071 (1987-06-01), None
patent: WO 98/21777 (1998-05-01), None
A. Hartner et al., “Methanol in-situ reforming fuel cells”, Proc. AICHE-I. Chem. I. Joint Meet., London, 1965 (abstract).
T. Norby, “Solid-state protonic conductors: principles, properties, progress and prospects”, Solid State Ionics 125, p. 1-11 1999.
T. Mori et al., “Steam reforming reaction of methane in internally-reformed molten carbonate fuel cell”, Journal of the Electrochemical Society, vol. 136, part II, No. 7-12, p. 2230-2233, Jul.-Dec. 1989.
G. Deublein et al., “Hydrogen-transparent metal surfaces produced by use of molten salts with very low oxygen and water activities”, The Electrochemical Society, Inc. Meeting Abstracts, vol. 99-I, May 2-6, 1999.
S. Samms et al., “Internal methanol reforming PEM fuel cells”, The Electrochemical Society, Inc. Meeting Abstracts, vol. 99-I, May 2-6, 1999.
Pu et al. “A Methanol Impermeable Proton Conducting Composite Electrolyte System” The Electrochemical Society, vol. 142, No. 7, Jul. 1995, pp. L119-L120.
Kenjo et al. “Proton Conductors Based on Ammonium Polyphosphate” Solid State Ionics, vol. 76, 1995, pp. 29-34.
Cappadonia et al. “Preliminary Study on the Ionic Conductivity of a Polyphosphate Composite” Solid State Ionics, vol. 125, 1999, pp. 333-337.
Norby “Solid-State Protonic Conductors: Principles, Properties, Progress and Prospects” Solid State Ionics, vol. 125, 1999, pp. 1-11.
Ryu et al. “Chemical Stability and Proton Conductivity of Doped BaCeO3-BaZrO3Solid Solutions” Solid State Ionics, vol. 125, 1999, pp. 355-367.
Lybye et al. “Proton and Oxide Ion Conductivity of Doped LaScO3” Solid State Ionics, Vo. 125, 1999, pp. 339-344.
Cook et al., J. Electrochem. Soc. (1992) 139(2):L19-L20.
Office Action for European Application No. 01950404.2, date mailed on Jun. 5, 2007, 4 pages.
Alejandro Raymond
Morrison & Foerster / LLP
Nuvant Systems, LLC
LandOfFree
Electrolyte components for use in fuel cells does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrolyte components for use in fuel cells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrolyte components for use in fuel cells will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2626905