CA2442633A1 - Solid polymer type fuel cell - Google Patents

Solid polymer type fuel cell Download PDF

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Publication number
CA2442633A1
CA2442633A1 CA002442633A CA2442633A CA2442633A1 CA 2442633 A1 CA2442633 A1 CA 2442633A1 CA 002442633 A CA002442633 A CA 002442633A CA 2442633 A CA2442633 A CA 2442633A CA 2442633 A1 CA2442633 A1 CA 2442633A1
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Prior art keywords
fuel cell
type fuel
cell according
solid polymer
polymer type
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CA002442633A
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French (fr)
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CA2442633C (en
Inventor
Yoichi Asano
Masaaki Nanaumi
Hiroshi Sohma
Nagayuki Kanaoka
Nobuhiro Saito
Keisuke Andou
Kaoru Fukuda
Junji Matsuo
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Honda Motor Co Ltd
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Priority claimed from JP2001097806A external-priority patent/JP2002298855A/en
Priority claimed from JP2001097805A external-priority patent/JP2002298858A/en
Priority claimed from JP2001097803A external-priority patent/JP4754083B2/en
Priority claimed from JP2001097804A external-priority patent/JP2002298857A/en
Priority claimed from JP2001097801A external-priority patent/JP3779171B2/en
Priority claimed from JP2001106648A external-priority patent/JP2002305007A/en
Application filed by Individual filed Critical Individual
Publication of CA2442633A1 publication Critical patent/CA2442633A1/en
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Publication of CA2442633C publication Critical patent/CA2442633C/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8605—Porous electrodes
    • 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
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • 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
    • H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
    • H01M8/1025—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters
    • 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
    • H01M8/1027—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having carbon, oxygen and other atoms, e.g. sulfonated polyethersulfones [S-PES]
    • 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
    • H01M8/1032—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having sulfur, e.g. sulfonated-polyethersulfones [S-PES]
    • 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
    • H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
    • 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
    • H01M2008/1095—Fuel cells with polymeric electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
    • H01M2300/0082—Organic polymers
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inert Electrodes (AREA)
  • Fuel Cell (AREA)

Abstract

A solid polymer type fuel cell which has a pair of electrodes (2, 3) consisting of an oxygen electrode (2) and a fuel electrode (3) both having a catalyst layer (5) containing a catalyst and an ion conducting material, and a polymer electrolyte film (1) sandwiched between catalyst layers (5) of both electrodes (2, 3), characterized in that the above ion conducting material contained in the polymer electrolyte film (1) or in the catalyst layer (5) of at least one of the electrodes (2, 3) comprises a sulfonated polyarylene polymer having a sulfonic acid group in a side chain thereof. The solid polymer type fuel cell uses an alternative material to a conventional perfluoroalkylene sulfonic acid polymer compound which allows the production thereof at a reduced cost, and also has excellent performance capabilities for generating electric power.

Claims (33)

1. A solid polymer type fuel cell comprising a pair of electrodes consisting of an oxygen electrode and a fuel electrode both having a catalyst layer containing a catalyst and an ion conductive material, and a polymer electrolyte membrane sandwiched between the catalyst layers of the both electrodes, characterized in that said polymer electrolyte membrane or said ion conductive material contained in the catalyst layer of at least one of said electrodes comprises a sulfonated polyarylene having sulfonic acid side-chain groups.
2 . The solid polymer type fuel cell according to claim 1, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene having sulfonic acid side-chain groups and a dynamic viscoelastic coefficient at 110°C in a range of 1 × 10 9 to 1 × 10 11 Pa; and said catalyst layer comprises catalyst particles consisting of a catalyst carrier and catalyst supported by said catalyst carrier, integrated by an ion conducting binder with a dynamic viscoelastic coefficient at 110°C smaller than that of said polymer electrolyte membrane.
3. The solid polymer type fuel cell according to claim 2, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol %

of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:
wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p as an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.
4. The solid polymer type fuel cell according to claim 3, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene represented by the following formula (3):

5. The solid polymer type fuel cell according to any one of claims 2 to 4, characterized in that the dynamic viscoelastic coefficient at 110°C of said ion conducting binder is within a range from 1/2 to 1/1000 of that of said polymer electrolyte membrane.
6. The solid polymer type fuel cell according to any one of claims 2 to 5, characterized in that said ion conducting binder comprises a sulfonated polyarylene that is a copolymer consisting of 50 to 70 mol % of an aromatic compound unit represented by the following formula (1) and 50 to 30 mol %
of an aromatic compound unit represented by the following formula (4) and having sulfonic acid side-chain groups:

wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 2 or greater.
7. The solid polymer type fuel cell according to claim 6, characterized in that said ion conducting binder comprises a sulfonated polyarylene represented by the following formula (5):

8. The solid polymer type fuel cell according to any one of claims 2 to 5, characterized in that said ion conducting binder comprises a sulfonated polyether ether ketone represented by the following formula (6):
9. The solid polymer type fuel cell according to any one of claims 2 to 5, characterized in that said ion conducting binder comprises a sulfonated polyether ether ketone represented by the following formula (7):
10. The solid polymer type fuel cell according to any one of claims 2 to 5, characterized in that said ion conducting binder comprises a perfluoroalkylene sulfonic acid polymer.
11. The solid polymer type fuel cell according to claim 1, characterized in that said catalyst layer comprises catalyst particles consisting of a catalyst carrier and a catalyst supported by the catalyst carrier, integrated by an ion conducting binder; and that said ion conducting binder comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol %
of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:
wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.
12. The solid polymer type fuel cell according to claim 11, characterized in that said ion conducting binder comprises 15 to 40% by weight of water under the environment of a temperature of 80°C and a relative humidity of 90%.
13. The solid polymer type fuel cell according to claim 11 or 12, characterized in that said ion conducting binder has an ion exchange capacity of 1.9 to 2.4 meq/g.
14. The solid polymer type fuel cell according to any one of claims 11 to 13, characterized in that said ion conducting binder coats 80 m2/g or more of the surface area of the catalyst supported by said catalyst carrier.
15. The solid polymer type fuel cell according to any one of claims 11 to 14, characterized in that said ion conducting binder comprises a sulfonated polyarylene represented by the following formula (3):

16. The solid polymer type fuel cell according to any one of claims 11 to 15, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol % of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:

wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.
17. The solid polymer type fuel cell according to claim 16, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene represented by the following formula (3):

18. The solid polymer type fuel cell according to any one of claims 11 to 17, characterized in that said catalyst carrier is carbon black having a specific surface area of 800 m2/g or more.
19 . The solid polymer type fuel cell according to claim 1, characterized in that said catalyst layer comprises catalyst particles consisting of a catalyst carrier and a catalyst supported by the catalyst carrier, integrated by an ion conducting binder, and that said ion conducting binder comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol %
of an aromatic compound unit represented by the following formula (4) and having sulfonic acid side-chain groups;
wherein said catalyst carrier is a porous body that is formed by pores with a diameter of 100 nm or shorter, having a pore volume of from 1.0 to 1.5 ml/g:
wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 2 or greater.
20. The solid polymer type fuel cell according to claim 19, characterized in that said ion conducting binder has an ion exchange capacity of 1.7 to 2.2 meq/g.
21. The solid polymer type fuel cell according to claim 19 or 20, characterized in that said ion conducting binder comprises a sulfonated polyarylene represented by the following formula (5):
22. The solid polymer type fuel cell according to any one of claims 19 to 21, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol % of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:
wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.
23. The solid polymer type fuel cell according to claim 22, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene represented by the following formula (3):

24. The solid polymer type fuel cell according to claim 1, characterized in that:
said catalyst layer comprises catalyst particles consisting of a catalyst carrier and a catalyst supported by the catalyst carrier, integrated by an ion conducting binder;
the ion conducting binder forming the catalyst layer of said oxygen electrode comprises a perfluoroalkylene sulfonic acid polymer; and the ion conducting binder forming the catalyst layer of said fuel electrode comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol % of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:

wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.
25. The solid polymer type fuel cell according to claim 24, characterized in that the ion conducting binder forming the catalyst layer of said fuel electrode has an ion exchange capacity of 1.9 to 2.4 meq/g.
26. The solid polymer type fuel cell according to claim 24 or 25, characterized in that the ion conducting binder forming the catalyst layer of said fuel electrode comprises a sulfonated polyarylene represented by the following formula (5):

27. The solid polymer type fuel cell according to any one of claims 24 to 26, characterized in that the ion conducting binder forming the catalyst layer of said oxygen electrode has an ion exchange capacity of 0.8 to 1.0 meq/g.
28. The solid polymer type fuel cell according to any one of claims 24 to 27, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol % of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:
wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO- , -CONH- , - (CF2) p- ( wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.
29. The solid polymer type fuel cell according to claim 28, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene represented by the following formula (5):
30. The solid polymer type fuel cell according to claim 1, characterized in that:
said catalyst layer comprises catalyst particles consisting of a catalyst carrier and a catalyst supported by the catalyst carrier, integrated by an ion conducting binder;

the ion conducting binder forming the catalyst layer of said oxygen electrode comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of the aromatic compound unit represented by the formula (1) and 70 to 5 mol %
of the aromatic compound unit represented by the formula (2) and having sulfonic acid side-chain groups; and the ion conducting binder forming the catalyst layer of said fuel electrode comprises a perfluoroalkylene sulfonic acid polymer.
31. The solid polymer type fuel cell according to claim 30, characterized in that the ton conducting binder forming the catalyst layer of said oxygen electrode has an ion exchange capacity of 1.9 to 2.4 meq/g.
32. The solid polymer type fuel cell according to claim 30 or 31, characterized in that the ion conducting binder forming the catalyst layer of said oxygen electrode comprises a sulfonated polyarylene represented by the following formula (5):
33. The solid polymer type fuel cell according to any one of claims 30 to 32, characterized in that the ion conducting binder forming the catalyst layer of said fuel electrode has an ion exchange capacity of 0.8 to 1.0 meq/g.
35. The solid polymer type fuel cell according to any one of claims 30 to 34, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol % of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:
wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.
36. The solid polymer type fuel cell according to claim 35, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene represented by the following formula (5):
37. The solid polymer type fuel cell according to claim 1, characterized in that said catalyst layer comprises an ion conducting material comprising a sulfonated polyarylene having sulfonic acid side-chain groups; and a catalyst generated by subjecting the hydrogen ions of said sulfonic acid groups of said sulfonated polyarylene to ion exchange with catalyst ions and then reducing said catalyst ions, and being supported by said ion conducting material.
38. The solid polymer type fuel cell according to claim 37, characterized in that said ion exchange is carried out by immersing said ion conducting material into a solution comprising a noble metal complex as a catalyst and at least one additive selected from a group consisting of an aqueous organic solvent, a nonionic surfactant and a non-metallic base.

39. The solid polymer type fuel cell according to claim 37 or 38, characterized in that said ion conducting material comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol %
of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:

wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, - (CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.

40. The solid polymer type fuel cell according to claim 39, characterized in that said ion conducting material comprises a sulfonated polyarylene represented by the following formula (5):

41. The solid polymer type fuel cell according to any one of claims 37 to 40, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene that is a copolymer consisting of 30 to 95 mol % of an aromatic compound unit represented by the following formula (1) and 70 to 5 mol % of an aromatic compound unit represented by the following formula (2) and having sulfonic acid side-chain groups:

wherein Ar represents an aryl group, and X represents a divalent electron-attracting group selected from a group consisting of -CO-, -CONH-, -(CF2)p- (wherein p is an integer of 1 to 10), -C(CF3)-, -COO-, -SO- and -SO2-; and wherein X has the same meaning as that in formula (1), each of X may be identical or different, and a is an integer of 0 to 3.

42. The solid polymer type fuel cell according to claim 41, characterized in that said polymer electrolyte membrane comprises a sulfonated polyarylene represented by the following formula (5):

CA2442633A 2001-03-30 2002-04-01 Solid polymer type fuel cell Expired - Fee Related CA2442633C (en)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
JP2001097806A JP2002298855A (en) 2001-03-30 2001-03-30 Polymer electrolyte fuel cell
JP2001-97804 2001-03-30
JP2001097805A JP2002298858A (en) 2001-03-30 2001-03-30 Polymer electrolyte fuel cell
JP2001097803A JP4754083B2 (en) 2001-03-30 2001-03-30 Polymer electrolyte fuel cell
JP2001097804A JP2002298857A (en) 2001-03-30 2001-03-30 Polymer electrolyte fuel cell
JP2001-97803 2001-03-30
JP2001097801A JP3779171B2 (en) 2001-03-30 2001-03-30 Polymer electrolyte fuel cell
JP2001-97806 2001-03-30
JP2001-97805 2001-03-30
JP2001-97801 2001-03-30
JP2001-106648 2001-04-05
JP2001106648A JP2002305007A (en) 2001-04-05 2001-04-05 Polymer electrolyte fuel cell
PCT/JP2002/003256 WO2002080294A1 (en) 2001-03-30 2002-04-01 Solid polymer type fuel cell

Publications (2)

Publication Number Publication Date
CA2442633A1 true CA2442633A1 (en) 2002-10-10
CA2442633C CA2442633C (en) 2010-02-09

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CA2442633A Expired - Fee Related CA2442633C (en) 2001-03-30 2002-04-01 Solid polymer type fuel cell

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US (1) US7208242B2 (en)
CA (1) CA2442633C (en)
DE (1) DE10296599B9 (en)
WO (1) WO2002080294A1 (en)

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