Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with solid electrolyte
Reexamination Certificate
2011-01-11
2011-01-11
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
C521S027000
Reexamination Certificate
active
07867669
ABSTRACT:
A solid polymer electrolyte composite membrane and method of manufacturing the same. According to one embodiment, the composite membrane comprises a rigid, non-electrically-conducting support, the support preferably being a sheet of polyimide having a thickness of about 7.5 to 15 microns. The support has a plurality of cylindrical pores extending perpendicularly between opposing top and bottom surfaces of the support. The pores, which preferably have a diameter of about 5 microns, are made by laser micromachining and preferably are arranged in a defined pattern, for example, with fewer pores located in areas of high membrane stress and more pores located in areas of low membrane stress. The pores are filled with a first solid polymer electrolyte, such as a perfluorosulfonic acid (PFSA) polymer. A second solid polymer electrolyte, which may be the same as or different than the first solid polymer electrolyte, may be deposited over the top and/or bottom of the first solid polymer electrolyte.
REFERENCES:
patent: 3282875 (1966-11-01), Connolly et al.
patent: 3972727 (1976-08-01), Cohn
patent: 4215183 (1980-07-01), MacLeod
patent: 4470889 (1984-09-01), Ezzell et al.
patent: 4478695 (1984-10-01), Ezzell et al.
patent: 4849311 (1989-07-01), Itoh et al.
patent: 5569855 (1996-10-01), Schomburg et al.
patent: 6350389 (2002-02-01), Fujishima et al.
patent: 6492431 (2002-12-01), Cisar
patent: 6500319 (2002-12-01), LaConti et al.
patent: 6586133 (2003-07-01), Teeters et al.
patent: 6635384 (2003-10-01), Bahar et al.
patent: 6793711 (2004-09-01), Sammells
patent: 2002/0182482 (2002-12-01), Hockaday et al.
patent: 2005/0026030 (2005-02-01), Mardilovich et al.
patent: 2005/0074651 (2005-04-01), Kidai et al.
patent: 2005/0095486 (2005-05-01), Hamamoto et al.
patent: 2006/0065522 (2006-03-01), Liu et al.
patent: 1158051 (1989-06-01), None
patent: 2230662 (1990-09-01), None
patent: 2291607 (1990-12-01), None
patent: WO 2002059996 (2002-08-01), None
patent: WO 02/081097 (2002-10-01), None
patent: WO 2003068853 (2003-08-01), None
patent: WO 2004/045750 (2004-06-01), None
Weidner et al., “Engineering a Membrane Electrode Assembly,” The Electrochemical Society Interface, 12(4):40-43 (Winter 2003).
LaConti Anthony B.
Liu Han
McCallum Thomas J.
Mittelsteadt Cortney K.
Alejandro Raymond
Giner Electrochemical Systems LLC
Kriegsman & Kriegsman
Laios Maria J
LandOfFree
Solid polymer electrolyte composite membrane comprising... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Solid polymer electrolyte composite membrane comprising..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid polymer electrolyte composite membrane comprising... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2723977