WO2012000622A1 - Procédé de production d'une membrane conductrice d'ions - Google Patents

Procédé de production d'une membrane conductrice d'ions Download PDF

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Publication number
WO2012000622A1
WO2012000622A1 PCT/EP2011/003029 EP2011003029W WO2012000622A1 WO 2012000622 A1 WO2012000622 A1 WO 2012000622A1 EP 2011003029 W EP2011003029 W EP 2011003029W WO 2012000622 A1 WO2012000622 A1 WO 2012000622A1
Authority
WO
WIPO (PCT)
Prior art keywords
ion
conductive
carrier material
membrane
region
Prior art date
Application number
PCT/EP2011/003029
Other languages
German (de)
English (en)
Inventor
Klaus Berger
Harald Tober
Original Assignee
Daimler Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Ag filed Critical Daimler Ag
Publication of WO2012000622A1 publication Critical patent/WO2012000622A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1058—Polymeric electrolyte materials characterised by a porous support having no ion-conducting properties
    • H01M8/1062—Polymeric electrolyte materials characterised by a porous support having no ion-conducting properties characterised by the physical properties of the porous support, e.g. its porosity or thickness
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0286—Processes for forming seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1065—Polymeric electrolyte materials characterised by the form, e.g. perforated or wave-shaped
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • H01M8/1081—Polymeric electrolyte materials characterised by the manufacturing processes starting from solutions, dispersions or slurries exclusively of polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/08—Patterned membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0276—Sealing means characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
    • H01M8/1023—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1058—Polymeric electrolyte materials characterised by a porous support having no ion-conducting properties
    • H01M8/106—Polymeric electrolyte materials characterised by a porous support having no ion-conducting properties characterised by the chemical composition of the porous support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • H01M8/1076—Micromachining techniques, e.g. masking, etching steps or photolithography
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • H01M8/1079—Inducing porosity into non porous precursors membranes, e.g. leaching, pore stretching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to a method for producing an ion-conductive membrane having at least one ion-conductive region and at least one fluid-tight region.
  • DE 10 2007 037 632 A1 discloses a method for producing an ion-conducting membrane, in which at least one region of the ion-conducting membrane is deactivated so that the selected region is not ion-conductive. To deactivate the area, a material which prevents the ionic conduction is added to the already ion-conducting membrane in the relevant region.
  • the invention has for its object to provide a comparison with the prior art improved method for producing an ion-conductive membrane.
  • the object is achieved by a method which the in
  • an ion-conductive material is deposited on and / or in at least one first subregion of a region limited to dimensions of the ion-conductive region to be produced
  • FIG. 1 shows schematically a first carrier material during a plurality of method steps in the production of an ion-conducting membrane
  • FIG. 2 schematically shows a second carrier material during a plurality of process steps in the production of an ion-conducting membrane
  • Fig. 3 shows schematically a third carrier material during several process steps in the production of an ion-conductive membrane
  • FIG. 4 schematically shows a fourth carrier material during a plurality of method steps in the production of an ion-conducting membrane.
  • FIG. 1 shows a first carrier material 1 during a plurality of method steps S1 to S6 during the production of an ion-conducting membrane 2.
  • the membrane 2 is intended for use in a fuel cell not shown in detail as an ion exchange membrane and comprises an ion-conducting region 2.1, which is enclosed on the edge side by a fluid-tight region 2.2. In this case, an outside of the membrane 2 facing away from the outer side of the fluid-tight region 2.2 is used
  • the substrate 1 is formed over the entire surface porous and is present in a first process step S1 in the production in the untreated state.
  • the carrier material 1 is formed from plastic, metal or ceramic. In a particular embodiment, the carrier material 1 is formed from polytetrafluoroethylene.
  • the carrier material 1 in particular stretched bidirectionally, perforated and / or additionally provided with pores or holes.
  • the porosity is generated chemically, for example by washing and / or converting regions of the carrier material 1.
  • the carrier material 1 is in particular in a
  • Lithography and chemical processes such as an etching process treated.
  • the porosity can also be generated by other well-known methods.
  • the substrate 1 is processed so that it is suitable for coating with an ion-conductive material, so that in a first
  • the ion-conductive region 2.1 of the membrane 2 can be generated.
  • the carrier material 1 is initially formed without pores. To produce the full-surface porosity are in the
  • Carrier material 1 is first introduced pores and / or holes, wherein the introduction by means of said mechanical, chemical, photo-chemical and / or other well-known processes takes place.
  • step S3 is in a second portion 1.2 of the
  • Support material 1 which completely surrounds the first subregion 1.1 as a frame region, applies a sealing material to the carrier material 1 and / or introduced into it, whereby the fluid-tight region 2.2 is generated in the second subregion 1.2.
  • the second subregion 1.2 is limited to the dimensions of the fluid-tight region 2.2 of the membrane 2 to be generated.
  • the application and / or introduction takes place in an impregnation and / or coating process and / or another well known methods, such as a spray method.
  • the generation of the fluid-tight region 2.2 by means of various methods and materials is possible, the methods and materials are selected depending on the purpose of the membrane. Also, by such a generation of the fluid-tight
  • Area 2.2 advantageously a combination with other sealing concepts possible.
  • an ion-conductive material is then applied and / or introduced into and / or into the first subregion 1.1 of the carrier material 1 by application and / or introduction, whereby the ion-conductive region 2.1 is produced.
  • the first subarea 1.1 is to dimensions of the to be generated
  • the ion-conductive material is processed only in the region of the carrier material 1 in which the ion-conducting region 2.1 of the membrane 2 is to be produced.
  • the ionic conductive material is a perfluorocarbon or a sulfonated tetrafluoroethylene polymer. Alternatively, other known ion-conductive materials can be used.
  • the introduction and / or introduction of the ion-conductive material takes place in an impregnation and / or coating process and / or another generally known process, such as a spray process.
  • a catalyst is applied to the activated ion-conducting region 2.1 on one or both sides, the application being carried out once or several times using generally known methods over the entire surface, partially and / or in a pattern.
  • the membrane 2 is separated in a sixth method step S6.
  • separating the membrane 2 is separated from the excess carrier material 1, in particular punched or cut from this.
  • the membrane 2 is separated from the excess carrier material 1, in particular punched or cut from this.
  • Subareas 1.1 and second subregions 1.2 one behind the other and / or side by side on the carrier material 1, so that a plurality of membranes 2 are produced on the carrier material 1.
  • a parallel processing of multiple membranes 2 is possible.
  • membranes 2 multi-zone membranes with multiple functional areas can be generated.
  • the functional areas can be produced during production, in particular by introducing and / or applying various ion-conductive materials and / or different sealing materials in different regions into and / or onto the carrier material 1. In this case, the materials in successive and / or in parallel steps on or be applied, with any
  • the membrane 2 remains in a further embodiment, not shown, for transport and / or further processing in the carrier material 1. In this way, for example, a
  • FIG. 2 shows an alternative embodiment in which a second carrier material 3 is processed during a plurality of method steps S1 to S6 for producing the ion-conducting membrane 2.
  • the carrier material 3 is formed from plastic, metal or ceramic. In a particular embodiment, the carrier material 3 is made
  • the second carrier material 3 is in the first process step S1 before all over pores.
  • the carrier material 3 is perforated in a predetermined first subregion 3.1 and / or provided with pores and / or holes.
  • the introduction is limited in the first subsection 3.1 by means of the already mentioned under Figure 1 mechanical, chemical, photo-chemical and / or other well-known methods.
  • the following method steps S3 to S6 correspond to the method steps S3 to S6 already described under FIG.
  • the third method step S3 of applying and / or introducing the sealing material onto and / or into the carrier material 3 in the second subregion 3.2 can be omitted if the nonporous second carrier material 3 is fluid-tight and the sealing material is not otherwise required or advantageous is, for example to
  • Transitional sealing, reinforcement, thickening, etc .
  • the third carrier material 4 is pore-free all over and is formed from plastic, metal or ceramic.
  • Embodiment is the third carrier material 4 of polyethylene naphthalate or
  • a material recess A is introduced into a predetermined first subregion 4.1 in the third substrate 4.
  • Material recess A is produced by punching or cutting in the carrier material 4.
  • a porous material insert E is introduced into the material recess A.
  • the material insert E is preferably formed of porous polytetrafluoroethylene. The introduction takes place in particular by pouring, gluing and / or welding of the material insert E with the carrier material 4.
  • a fourth method step S4 the sealing material is applied and / or introduced into the substrate 2 in a predetermined second sub-area 4.2 and / or into the substrate 4 according to the description of FIG.
  • the sealing material may also partially be applied to and / or introduced into and / or into the edge area of the material insert E.
  • the fourth method step S4 of applying and / or introducing the sealing material onto and / or into the carrier material 4 in the second partial region 4.2 can be omitted if the non-porous carrier material 4 is fluid-tight and the Sealing material is not needed otherwise or is advantageous, for example for temporary sealing, reinforcement, thickening, etc ..
  • Part 4.1 of the substrate 4 on and / or in the material insert E up and / or introduced This mounting and / or introduction also takes place as explained in the description of FIG.
  • Support material 4 is further processed as a roll material with a plurality of membranes 2, corresponding to the already described under Figure 1 process steps S5 and S6.
  • FIG. 4 shows an alternative fourth carrier material 5 during several
  • the fourth substrate 5 is formed of plastic, metal or ceramic.
  • the fourth carrier material 5 is formed from polyethylene naphthalate or polyether ketones.
  • a material recess A is introduced into the carrier material 5 in a predetermined first subregion 5.1.
  • the material recess A is produced by punching or cutting in the carrier material 5.
  • a porous material insert E is introduced into the material recess A.
  • the material insert E is preferably formed of porous polytetrafluoroethylene and is already provided with the ion-conductive material. The introduction takes place in particular by pouring, gluing and / or welding of the material insert E with the carrier material 5.
  • a fourth method step S4 the sealing material is applied to and / or introduced into the substrate 5 in a predetermined second sub-area 5.2 and / or into the substrate 5 according to the description of FIG.
  • the sealing material may also partially be applied to and / or introduced into and / or into the edge area of the material insert E.
  • the fourth method step SA of applying and / or introducing the sealing material onto and / or into the carrier material 5 in the second subregion 5.2 can be dispensed with if the nonporous carrier material 5 is fluid-tight and the sealing material is not otherwise required or advantageous , eg for
  • Transitional sealing, reinforcement, thickening, etc .
  • Support material 5 is further processed as a roll material with a plurality of membranes 2, in turn, correspond to those already described under Figure 1
  • process steps S1 to S6 or S1 to S7 can be performed in a different order.
  • alternative arrangements of the first subregions 1.1, 3.1, 4.1, 5.1 and the second subregions 1.2, 3.2, 4.2, 5.2 and thus alternative embodiments of the membrane 2 with the ion-conducting region 2.1 and the fluid-tight region 2.2 are possible.
  • a plurality of ion-conductive regions 2. 1 and fluid-tight regions 2. 2 can also be provided.
  • any other combinations of the materials used are possible, the materials being selected depending on the functions of the membrane 2 to be produced.
  • the membrane 2 Prior to integration of the membrane 2 produced in the fuel cell, the membrane 2 is integrated in one particularly preferred embodiment in one or more further components, connected to these and / or supplemented with several components.
  • ion-conducting regions 2.1 and the fluid-tight regions 2.2 and the catalyst can also be produced in different shapes, patterns or, for example, as strips. LIST OF REFERENCE NUMBERS

Landscapes

  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Fuel Cell (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un procédé de production d'une membrane conductrice d'ions (2), comprenant au moins une zone conductrice d'ions (2.1) et au moins une zone étanche au fluide (2.2). L'invention est caractérisée en ce qu'un matériau conducteur d'ions est appliqué sur et/ou introduit dans au moins une première zone partielle (1.1, 3.1, 4.1, 5.1) d'un matériau support (1, 3, 4, 5), cette zone partielle étant limitée aux dimensions de la zone conductrice d'ions (2.1) à produire.
PCT/EP2011/003029 2010-07-01 2011-06-18 Procédé de production d'une membrane conductrice d'ions WO2012000622A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010025814A DE102010025814A1 (de) 2010-07-01 2010-07-01 Verfahren zur Herstellung einer ionenleitfähigen Membran
DE102010025814.8 2010-07-01

Publications (1)

Publication Number Publication Date
WO2012000622A1 true WO2012000622A1 (fr) 2012-01-05

Family

ID=43853092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/003029 WO2012000622A1 (fr) 2010-07-01 2011-06-18 Procédé de production d'une membrane conductrice d'ions

Country Status (2)

Country Link
DE (1) DE102010025814A1 (fr)
WO (1) WO2012000622A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201515870D0 (en) * 2015-09-08 2015-10-21 Johnson Matthey Fuel Cells Ltd Process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1336646A2 (fr) * 2002-02-18 2003-08-20 ElringKlinger AG Adhésif résistant aux hautes températures
WO2007110397A1 (fr) * 2006-03-27 2007-10-04 Basf Se Procédé de fabrication d'une unité d'électrode membranaire pour pile à combustible
DE102007037632A1 (de) 2006-08-14 2008-03-27 GM Global Technology Operations, Inc., Detroit Lokalisierte Deaktivierung einer Membran
US20100098988A1 (en) * 2008-10-21 2010-04-22 Nan Ya Pcb Corp. Membrane electrode module and assembly method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1336646A2 (fr) * 2002-02-18 2003-08-20 ElringKlinger AG Adhésif résistant aux hautes températures
WO2007110397A1 (fr) * 2006-03-27 2007-10-04 Basf Se Procédé de fabrication d'une unité d'électrode membranaire pour pile à combustible
DE102007037632A1 (de) 2006-08-14 2008-03-27 GM Global Technology Operations, Inc., Detroit Lokalisierte Deaktivierung einer Membran
US20100098988A1 (en) * 2008-10-21 2010-04-22 Nan Ya Pcb Corp. Membrane electrode module and assembly method thereof

Also Published As

Publication number Publication date
DE102010025814A1 (de) 2011-05-12

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