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. 13, 2026
Filed:
Oct. 05, 2022
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Gaohua Zhu, Ann Arbor, MI (US);
Liang Wang, Saline, MI (US);
Yuqing Zhou, Ann Arbor, MI (US);
Debasish Banerjee, Ann Arbor, MI (US);
Hongfei Jia, Ann Arbor, MI (US);
Ercan Mehmet Dede, Ann Arbor, MI (US);
Hiroyuki Kawai, Numazu, JP;
Masaki Ando, Gotemba, JP;
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A bipolar plate-gas diffusion layer (GDL) assembly for a polymer-electrolyte-membrane fuel cell includes a flat metallic bipolar plate and a porous metal GDL adjacent to and in direct contact with the flat metallic bipolar plate. The porous metal GDL includes flow channels defined by flow channel walls with flow channel surfaces. The flow channel walls and flow channel surfaces have an average porosity generally equal to an average porosity of an interior of the porous metal GDL.