Liquid materials for use in electrochemical cells

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C429S006000, C427S115000, C502S101000, C521S025000

Reexamination Certificate

active

07435495

ABSTRACT:
Disclosed is the use of liquid precursor materials to prepare a processible polymeric electrolyte, which can be used to form a proton exchange membrane for use in an electrochemical cell. Also disclosed is the use of liquid precursor materials to prepare a processible catalyst ink composition, which can be conformally applied to a proton exchange membrane and an electrode material for use in an electrochemical cell. Also disclosed is the use of a photocurable perfluoropolyether (PFPE) material to form a microfluidic electrochemical cell.

REFERENCES:
patent: 6500894 (2002-12-01), Lenti et al.
patent: 6632571 (2003-10-01), Noh
patent: 6645675 (2003-11-01), Munshi
patent: 7045479 (2006-05-01), Zhou et al.
patent: 2003/0013602 (2003-01-01), Uchida et al.
patent: 2003/0044688 (2003-03-01), Kang et al.
patent: 2003/0049538 (2003-03-01), Buerger et al.
patent: 2003/0059683 (2003-03-01), Blau et al.
patent: 2004/0258990 (2004-12-01), McLean et al.
patent: 2005/0112433 (2005-05-01), Apte et al.
patent: WO 99/16138 (1999-04-01), None
patent: WO 03/095552 (2003-11-01), None
patent: WO 2005/030822 (2005-04-01), None
patent: WO-2005/086632 (2005-09-01), None
Bae, B., et al., “Nafion®-graft-Polystyrene Sulfonic Acid Membranes for Direct Methanol Fuel Cells,”Journal of Membrane Science, 2006, pp. 51-58, vol. 276.
Büchi, F.N., et al., “Study of Radiation-Crafted FEP-g-Polystryrene Membranes as Polymer Electrolytes in Fuel Cells,”Electrochimica Acta, 1995, pp. 345-353, vol. 40(3).
Chen, S-L., et al., “Photo-Cross-Linking of Sulfonated Styrene-Ethylene-Butylene Copolymer Membranes for Fuel Cells,”Ind. Eng. Chem. Res.,2005, pp. 7701-7705, vol. 44.
Chen, J., et al., “Preparation of Sulfonated Crosslinked PTFE-graft-poly(alkyl vinyl ether) Membranes for Polymer Electroltye Membrane Fuel Cells by Radiation Processing,”Journal of Membrane Science, 2005, pp. 38-45, vol. 256.
Si, Y., et al., “Trilayer Membranes With a Methanol-Barrier Layer for DMFCs,”Journal of the Electrochemical Society, 2004, pp. A463-A469, vol. 151(3).
Whittingham, S., et al., “Introduction: Batteries and Fuel Cells,”Chemical Reviews, 2004, pp. 4243-4244, vol. 104(10).
Bae et al. Nafion®-graft-polystyrene sulfonic acid membranes for direct methanol fuel cells.Journal of Membrane Science, vol. 276, (2006), pp. 51-58.
Buchi et al. Study of radiation-grafted FEP-g-Polystyrene membranes as polymer electrolytes in fuel cells.Electrochimica Acra, vol. 40, No. 3, (1995), pp. 345-353.
Chen et al. Photo-cross-linking of sulfonated styrene-ethylene-butylene copolymer membranes for fuel cells.Industrial and Engineering Chemistry Research, vol. 44, (2005), pp. 7701-7705.
Chen et al. Preparation of sulfonated crosslinked PRFE-graft-poly(alkyl vinyl ether) membranes for polymer electrolyte membrane fuel cells by radiation processing.Journal of Membrane Science, vol. 256, (2005), pp. 38-45.
Gil et al. Direct synthesis of sulfonated aromatic poly(ether ether ketone) proton exchange membranes for fuel cell applications.Journal of Membrane Science, vol. vol. 234, (2004), pp. 75-81.
Hickner et al. Alternative polymer systems for proton exchange membranes (PEMs).Chemical Review, vol. 104, No. 10, (2004), pp. 4587-4612.
Kang et al. Highly charged proton exchange membranes prepared by using water soluble polymer blends for fuel cells.Journal of Membrane Science, vol. 247, (2005), pp. 127-135.
Kerres et al. Development and characterization of crosslinked ionomer membranes based upon sulfinated and sulfonated PSU Crosslinked PSU blend membranes by disproportionation of sulfinic acid groups.Journal of Membrane Science, vol. 139, (1998), pp. 211-225.
Kerres et al. Development and characterization of crosslinked ionomer membranes based upon sulfinated and sulfonated PSU Crosslinked PSU blend membranes by alkylation of sulfinate groups with dihalogenoalkanes.Journal of Membrane Science, vol. 139, (1998), pp. 227-241.
Si et al. Nafion-teflon-Zr(HPO4)2 composite membranes for high-temperature PEMFCs.Journal of the Electrochemical Society, vol. 151, No. 4, (2004), pp. A623-A631.
Si et al. Trilayer membranes with a methanol-barrier layer for DMFCs.Journal of the Electrochemical Society, vol. 151, No. 3, (2004), pp. A463-A469.
Vie et al. Fuel cell performance of proton irradiated and subsequently sulfonated poly(vinyl fluoride) membranes.Journal of Membrane Science, vol. 204, (2002), pp. 295-301.
Whittingham et al. Introduction: batteries and fuel cells.Chemical Reviews, vol. 104, No. 10, (2004), pp. 4243-4244.
Won et al. Fixation of nanosized proton transport channels in membranes.Macromolecules, vol. 36, (2003), pp. 3228-3234.
Yang et al. Copolymerizaton of ethylene, tetrafluoroethylene, and an olefin-containing fluorosulfonyl fluoride: synthesis of high-proton-conductive membranes for fuel-cell applications.Angewandte Chemie International Edition, vol. 44, (2005), pp. 564-567.
Zhou et al. Molded, high surface area polymer electrolyte membranes from cured liquid precursors.Journal of American Chemical Society, vol. 128, (2006), pp. 12963-12972.
Malhotra et al. Membrane-supported nonvolatile acidic electrolytes allow higher temperature operation of proton-exchange membrane fuel cells.Journal of Electrochemical Society, vol. 144, No. 2, (1997), pp. L23-L26.
Mikhailenko et al. Proton conducting membranes based on cross-linked sulfonated poly(ether ether ketone) (SPEEK).Journal of Membrane Science, vol. 233, (2004), pp. 93-99.
Qiao et al. Chemically modified Poly(vinyl alcohol)-Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) as a novel proton-conducting fuel cell membrane.Chemistry of Materials, vol. 17, (2005), pp. 2413-2421.
Qiao et al. New highly proton-conducting membrane poly(vinylpyrrolidone)(PVP) modified poly(vinyl alcohol)/2-acrylamido-2-methyl-1-propanesulfonic acid (PVA-PAMPS) for low temperature direct methanol fuel cells (DMFCs).Polymer, vol. 46, (2005), pp. 10809-10816.
Rhim et al. Crosslinked poly(vinyl alcohol) membranes containing sulfonic acid group: proton and methanol transport through membranes.Journal of Membrane Science, vol. 238, (2004), pp. 143-151.
Schmeisser et al. Photocuring and photolithography of proton-conducting polymers bearing weak and strong acids.Chemistry of Materials, vol. 17, (2005), pp. 387-394.
Schmidt et al. Influence of Cross-linking on performance of radiation-grafted and sulfonated FEP 25 membranes in H2-O2 PEFC.Journal of the Electrochemical Society, vol. 152, No. 1, (2005), pp. A93-A97.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Liquid materials for use in electrochemical 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 Liquid materials for use in electrochemical cells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid materials for use in electrochemical cells will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4011490

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.