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:
Jun. 23, 2020
Filed:
Mar. 14, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Tatsuya Arai, Susono, JP;
Takashi Ozaki, Gotemba, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A method for producing a catalyst ink, by which the surface of a catalyst can be appropriately covered with an ionomer, and the power generation performance of a fuel cell can be excellent in a wide range of humidity environments, and a catalyst composite. The method for producing a catalyst ink may comprise the steps of, for a catalyst composite in which a catalyst is supported on a carbon support with pores, controlling a hydrophilic pores rate of the carbon support to 60% to 80%, and dispersing an ionomer in the catalyst composite after the controlling step, wherein the hydrophilic pores rate is calculated by the following formula (1) using a contact porosimetry method:Hydrophilic pores rate (%)=(hydrophilic pores volume/total pores volume)×100.  Formula (1)