Title:
POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE PART, MEMBRANE ELECTRODE COMPOSITE AND POLYMER ELECTROLYTE TYPE FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2004/079844
Kind Code:
A1
Abstract:
A polymer electrolyte material excelling in not only proton conductivity but also fuel cutoff properties; and a polymer electrolyte type fuel cell of high efficiency. In particular, a polymer electrolyte material wherein in a hydrous state the fraction of antifreeze water (Rw1) represented by the following formula (S1) is in the range of 20 to 100 wt.%. Rw1 = [Wnf/(Wfc + Wnf)] x 100 (S1) wherein Wnf: amount of antifreeze water per g of dry weight of polymer electrolyte material, and Wfc: amount of low-melting-point water per g of dry weight of polymer electrolyte material.
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Inventors:
ADACHI SHINYA (JP)
IZUHARA DAISUKE (JP)
NAKAMURA MASATAKA (JP)
ITO NOBUAKI (JP)
IZUHARA DAISUKE (JP)
NAKAMURA MASATAKA (JP)
ITO NOBUAKI (JP)
Application Number:
PCT/JP2004/002894
Publication Date:
September 16, 2004
Filing Date:
March 05, 2004
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
ADACHI SHINYA (JP)
IZUHARA DAISUKE (JP)
NAKAMURA MASATAKA (JP)
ITO NOBUAKI (JP)
ADACHI SHINYA (JP)
IZUHARA DAISUKE (JP)
NAKAMURA MASATAKA (JP)
ITO NOBUAKI (JP)
International Classes:
C08G65/40; C08G75/02; C08G75/20; C09K5/20; H01B1/06; H01B1/12; C08G79/04; H01M4/88; H01M8/02; H01M8/04; H01M8/04186; H01M8/06; H01M8/10; H01M8/1009; H01M8/1027; H01M8/1034; H01M8/1067; H01M8/1088; H01M4/86; H01M4/92; H01M8/1004; (IPC1-7): H01M8/02; C08G79/04; C08G75/02; C08G75/20; C08G65/40; H01B1/06
Domestic Patent References:
| WO2001004636A1 | 2001-01-18 |
Foreign References:
| JPH10340732A | 1998-12-22 | |||
| JP2002324559A | 2002-11-08 | |||
| JP2002524631A | 2002-08-06 | |||
| JP2001294705A | 2001-10-23 | |||
| JP2001294706A | 2001-10-23 | |||
| JPH08180891A | 1996-07-12 | |||
| JPS6422932A | 1989-01-25 | |||
| JPH05271460A | 1993-10-19 | |||
| JPS5634329B2 | 1981-08-10 |
Other References:
WALKER M. ET AL.: "Proton-conducting polymers with reduced methanol permeation", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 74, 1999, pages 67 - 73, XP002980459
HATANAKA TATSUYA: "chokusetsu methanol-gata nenryo denchi", R&D REVIEW OF TOYOTA CRDL, vol. 37, no. 1, 2002, pages 59 - 64, XP002904696
HATANAKA TATSUYA: "chokusetsu methanol-gata nenryo denchi", R&D REVIEW OF TOYOTA CRDL, vol. 37, no. 1, 2002, pages 59 - 64, XP002904696
Attorney, Agent or Firm:
Iwami, Tomonori c/o Intellectual, Property Dept (Toray Industries Inc.,, 1-1, Sonoyama 1-chom, Otsu-shi Shiga 58, JP)
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