GAS DIFFUSION ELECTRODE MANUFACTURE AND MEA FABRICATION

Title:

GAS DIFFUSION ELECTRODE MANUFACTURE AND MEA FABRICATION

Document Type and Number:

WIPO Patent Application WO2002059989

Kind Code:

A9

Abstract:

A method for producing a gas diffusion electrode in which a slurry of carbon black, alcohol, water and a tetrafluoroethylene emulsion is applied as a layer a non-Teflonized carbon cloth substrate, which is then heated to remove water. The dried coated carbon cloth is then rolled followed by heating to remove wetting agents present in the tetrafluoroethylene emulsion. The coated carbon cloth is then cooled and rolled again to produce the final end product.

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Inventors:

FAN QINBAI
LE SIEM

Application Number:

PCT/US2001/051299

Publication Date:

April 24, 2003

Filing Date:

October 25, 2001

Export Citation:

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Assignee:

GAS TECHNOLOGY INST (US)

International Classes:

H01M4/88; H01M8/10; (IPC1-7): H01M/

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