Title:
PRECURSOR SHEET FOR FUEL CELL SEPARATOR, AND FUEL CELL SEPARATOR
Document Type and Number:
WIPO Patent Application WO/2023/120065
Kind Code:
A1
Abstract:
This precursor sheet for a fuel cell separator comprises a conductive substrate sheet, a dense layer including first graphite particles, and a conduction layer including second graphite particles, wherein the dense layer and the conduction layer include a resin, the first graphite particles have a volume resistivity of 20 mΩ∙cm or greater and a bulk density of 1.7 g/cm3 or greater when compressed at 30 MPa, and the second graphite particles have a volume resistivity of less than 20 mΩ∙cm and a bulk density of 1.5 g/cm3 or greater when compressed at 30 MPa. This precursor sheet for a fuel cell separator provides a fuel cell separator that has excellent shapability and good mechanical strength, conductivity, and gas impermeability.
Inventors:
ARAKI TOMOYUKI (JP)
IWAI MIHO (JP)
OKEI TAKEHIRO (JP)
YASUDA KOSUKE (JP)
IWAI MIHO (JP)
OKEI TAKEHIRO (JP)
YASUDA KOSUKE (JP)
Application Number:
PCT/JP2022/044104
Publication Date:
June 29, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
NISSHINBO CHEMICAL INC (JP)
International Classes:
H01M8/0228; B32B7/025; B32B27/20; D21H19/38; D21H19/82; D21H27/00; H01M8/0213
Foreign References:
| JP2007122884A | 2007-05-17 | |||
| JP2007280725A | 2007-10-25 | |||
| JP2007042326A | 2007-02-15 | |||
| JP2006127812A | 2006-05-18 | |||
| JP2007280725A | 2007-10-25 | |||
| JP2007311061A | 2007-11-29 | |||
| JP2007122884A | 2007-05-17 | |||
| JP2008311176A | 2008-12-25 | |||
| JP2014032906A | 2014-02-20 | |||
| JP2021180150A | 2021-11-18 |
Attorney, Agent or Firm:
PATENT ATTORNEY CORPORATION EI-MEI PATENT OFFICE (JP)
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