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.

Date of Patent:
Sep. 10, 2024

Filed:

Mar. 28, 2022
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Naoki Hasegawa, Nagakute, JP;

Kazuhisa Yano, Nagakute, JP;

Tomohiro Takeshita, Nagakute, JP;

Rui Imoto, Fujisawa, JP;

Kumiko Nomura, Okazaki, JP;

Noriyuki Kitao, Susono, JP;

Yunan Wang, Machida, JP;

Yuuki Kasama, Yokkaichi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/92 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01);
U.S. Cl.
CPC ...
H01M 4/926 (2013.01); H01M 4/8605 (2013.01); H01M 4/8892 (2013.01);
Abstract

Mesoporous carbon has a connecting structure in which primary particles made of carbon particles having primary pores with a primary pore diameter of less than 20 nm are connected. In the mesoporous carbon, the pore capacity of secondary pores with secondary pore diameters within a range of 20 nm to 100 nm, which is measured by a mercury intrusion method, is 0.42 cm/g or more and 1.34 cm/g or less. In addition, the mesoporous carbon has a linearity of 2.2 or more and 2.6 or less. An electrode catalyst for a fuel cell includes the mesoporous carbon and catalyst particles supported in the primary pores in the mesoporous carbon. Furthermore, a catalyst layer includes the electrode catalyst for the fuel cell and a catalyst layer ionomer.


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