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:
Feb. 28, 2023
Filed:
Oct. 29, 2018
Toppan Printing Co., Ltd., Tokyo, JP;
Madoka Ozawa, Tokyo, JP;
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Abstract
Provided are an electrode catalyst layer, a membrane electrode assembly and a polymer electrolyte fuel cell, having sufficient drainage property and gas diffusibility with high power generation performance over a long term. An electrode catalyst layer () bonded to a surface of a polymer electrolyte membrane () includes at least a catalyst substance (), a conductive carrier (), a polymer electrolyte () and fibrous substances (). The number of the fibrous substances () in which inclination θ of axes with respect to a surface of the electrode catalyst layer () bonded to the surface of the polymer electrolyte membrane () is 0°≤θ<45°, among the fibrous substances (), is greater than 50% of the total number of the fibrous substances () contained.