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Primary Examiner: Konopka, P. E.
Assistant Examiner:
Attorney: Stephen E. Revis

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Title: Method of fabricating a fuel cell electrode

Abstract: Electrocatalyst and hydrophobic polymer particles are combined to form an aqueous suspension which is then applied to a conductive substrate to form an electrode. The colloidal chemistry of the suspension of electrocatalyst particles and hydrophobic polymer particles is controlled prior to the application of the suspension to the substrate such as by the incorporation of a sol of a polyvalent metal oxide or solution of a salt of a polyvalent metal into the suspension.

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Inventors: Kohlmayr, Gerda M. (Glastonbury, CT, US)
Stonehart, Paul (Madison, CT, US)

Application Number: 895162
Filing Date: 1978-04-10
Publication_date: 1979-08-07
Assignee: United Technologies Corporation (Hartford, CT)
Primary Class(es): 427/115 252/182.1, 427/125, 429/42, 502/101
Other Classes:
US Patent Ref:

3248267	Apr, 1966	Langer et al.	429/42.
3444004	May, 1969	Smith	429/42.
3467554	Sep, 1969	Forten et al.	429/42.
3510356	May, 1970	Richman	429/42.
3533851	Oct, 1970	Adlhart	427/115.
3600230	Aug, 1971	Stachurski et al.	429/42.
3635763	Jan, 1972	Niedrach et al.	429/42.
3676222	Jul, 1972	Deibert	429/42.
4043933	Aug, 1977	Breault et al.	252/182.
4058482	Nov, 1977	Baris et al.	252/425.

Other Refs: Other References: Journal of Physical Chemistry -"Dispersal of Cabon Blacks to Individual Crystallites", K. J. Notz-vol. 71, No. 6 (5/1967), pp. 1965-1966.