The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 1984
Filed:
Apr. 08, 1982
Hideo Okada, Hitachi, JP;
Jinichi Imahashi, Hitachi, JP;
Seizi Takeuchi, Hitachiota, JP;
Sigeru Okabe, Hitachi, JP;
Toshiki Kahara, Ibaraki, JP;
Kenzo Ishii, Ibaraki, JP;
Masato Takeuchi, Katsuta, JP;
Shimpei Matsuda, Ibaraki, JP;
Kohki Tamura, Hitachi, JP;
Hiroshi Tobita, Kitaibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A fuel cell electrode being substantially free from cracks on the surface of catalyst layer on the electrode and having a good electrode performance under the atmospheric pressure or under pressure when assembled into a fuel cell, which comprises a gas-diffusing electroconductive substrate with continued pores and a water-repellent catalyst layer comprising electroconductive submicron particles having a catalyst, electroconductive materials each having a volume 10.sup.3 -10.sup.10 as large as the volume of the largest particle of the submicron particles and, if necessary, having a catalyst, and a water-repellent polymer as a binder, the electroconductive submicron particles and the electroconductive materials being provided in a mixing ratio by volume of the former to the latter of 95-50 to 5-50.