SEPARATOR FOR POLYMER ELECTROLYTE FUEL CELL AND MANUFACTURING METHOD OF THE SAME

Title:

SEPARATOR FOR POLYMER ELECTROLYTE FUEL CELL AND MANUFACTURING METHOD OF THE SAME

Document Type and Number:

Japanese Patent JP2006222014

Kind Code:

A

Abstract:

To provide a separator for a polymer electrolyte fuel cell with light weight, low volume resistance, and high corrosion resistance, which can be manufactured at low cost.

The separator for the polymer electrolyte fuel cell is made of a conductive resin composition containing polymethylpentene by 6 to 11 mass% and graphite powder by 89 to 94 mass%. The separator is manufactured by preparing the conductive resin composition containing polymethylpentene by 6 to 11 mass% and graphite powder by 89 to 94 mass% by mixing the polymethylpentene and the graphite powder, primarily molding the conductive resin composition into a small pellet shape or small chip shape, filling the primarily molded bodies in a mold having groove-shaped parts, and by secondarily molding them for 1 to 15 minutes with a temperature of 200 to 300°C and a pressure of 30 to 50 Mpa.

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Inventors:

IWANO HARUO
IIZUKA MUNENORI

Application Number:

JP2005035986A

Publication Date:

August 24, 2006

Filing Date:

February 14, 2005

Export Citation:

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Assignee:

BRIDGESTONE CORP

International Classes:

H01M8/02; B29C43/02; H01M8/10; B29K23/00; B29K105/16; B29K507/04

Attorney, Agent or Firm:

Kosaku Sugimura
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita

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