Title:
ELECTROLYTE MATERIAL, LIQUID COMPOSITION, AND MEMBRANE ELECTRODE ASSEMBLY FOR SOLID POLYMER FUEL CELLS
Document Type and Number:
WIPO Patent Application WO/2014/175123
Kind Code:
A1
Abstract:
Provided are: an electrolyte material which is capable of providing a membrane electrode assembly that is not susceptible to flooding in a catalyst layer of the membrane electrode assembly and breakage of a solid polymer electrolyte membrane and has excellent power generation characteristics; and a method which enables the production of an electrolyte material that has suppressed low moisture content even though the electrolyte material is formed of a polymer that has a unit derived from a perfluoromonomer having a dioxolane ring.
An electrolyte material which is formed of a polymer (H) that is obtained by exchanging -SO2F groups in a polymer (F) with ion exchange groups, said polymer (F) having a unit derived from a perfluoromonomer having an -SO2F group and a dioxolane ring, a unit derived from a perfluoromonomer having a dioxolane ring but not having an -SO2F group, and a unit derived from tetrafluoroethylene. This electrolyte material has an ion exchange capacity of 0.9-1.3 meq/g-dry resin and a moisture content of 20-100%.
Inventors:
SAITO SUSUMU (JP)
HOMMURA SATORU (JP)
SHIMOHIRA TETSUJI (JP)
HOMMURA SATORU (JP)
SHIMOHIRA TETSUJI (JP)
Application Number:
PCT/JP2014/060750
Publication Date:
October 30, 2014
Filing Date:
April 15, 2014
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
H01M8/02; C08F214/26; C08F224/00; C08F234/02; H01B1/06; H01B13/00; H01M8/10
Domestic Patent References:
| WO2012088176A1 | 2012-06-28 | |||
| WO2005096422A1 | 2005-10-13 |
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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