Catalyst agglomerates for membrane electrode assemblies

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United States of America Patent

PATENT NO 6911411
APP PUB NO 20030134739A1
SERIAL NO

10301131

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Abstract

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A method of preparing catalyst agglomerates for electrochemical devices is provided. The method comprises dispersing particles of a catalyst in a non-aqueous solvent to form a dispersion of the catalyst, adding an ion conducting polymer in a dilute solution to the dispersion of the catalyst under agitation to form catalyst agglomerates, and stirring the dispersion of the catalyst and the catalyst agglomerates to control the growth of the agglomerates. A directly applicable catalyst composition is also provided. The catalyst composition comprises the catalyst agglomerates prepared according to the present invention, a solvent to plasticize surfaces of the catalyst agglomerates and the membrane, and a non-aqueous carrier solvent.

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Patent Owner(s)

Patent OwnerAddress
POLYFUEL INC333 RAVENSWOOD AVENUE MENLO PARK CA 94025

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cha, Suk-Yal Santa Clara, CA 4 22
Cox, Philip San Jose, CA 19 358
Duong, Anh San Francisco, CA 40 331
Hou, Gouyan Menlo Park, CA 1 19
Tran, Ngan San Jose, CA 2 19

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