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:
Jan. 27, 2015
Filed:
Feb. 14, 2011
Nilesh Dale, Farmington Hills, MI (US);
Gregory Dileo, Ann Arbor, MI (US);
Taehee Han, Farmington Hills, MI (US);
Kevork Adjemian, Birmingham, MI (US);
Nilesh Dale, Farmington Hills, MI (US);
Gregory DiLeo, Ann Arbor, MI (US);
Taehee Han, Farmington Hills, MI (US);
Kevork Adjemian, Birmingham, MI (US);
Nissan North America, Inc., Franklin, TN (US);
Abstract
Methods of fabricating gas diffusion electrodes and gas diffusion electrodes made from such methods are disclosed herein. One method of fabricating a gas diffusion electrode for a fuel cell comprises preparing a catalyst ink of a predetermined viscosity. Preparing the catalyst ink comprises mixing a catalyst solution comprising catalyst particles, an ionomer and a solvent at a first speed for a first period of time and homogenizing the catalyst solution at a second speed in a temperature controlled environment for a second period of time, wherein the second period of time is longer than the first period of time, the second period of time and the second speed selected to preserve a structure of the catalyst particles during homogenization. An active electrode layer is formed by spraying the catalyst ink directly on a gas diffusion layer in a single application and a uniform loading.