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:
Apr. 18, 2023

Filed:

Apr. 03, 2020
Applicant:

Toyota Motor Engineering and Manufacturing North America, Inc., Plano, TX (US);

Inventors:

Gaohua Zhu, Ann Arbor, MI (US);

Tom Shieh, Ann Arbor, MI (US);

Swetha Minupuri, Ann Arbor, MI (US);

Evan Fleming, Ann Arbor, MI (US);

Debasish Banerjee, Ann Arbor, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04007 (2016.01); H01M 8/0267 (2016.01); H01M 8/1004 (2016.01); H01M 8/2483 (2016.01); H01M 8/04089 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04074 (2013.01); H01M 8/0267 (2013.01); H01M 8/04089 (2013.01); H01M 8/1004 (2013.01); H01M 8/2483 (2016.02);
Abstract

A fuel cell assembly, a heat pipe for such a fuel cell assembly, and a fuel cell stack. The fuel cell assembly includes a fuel cell having an MEA structure, and a pair of heat pipe separator plates in physical and thermal contact with a planar surface of the fuel cell. Each heat pipe separator plate includes an external heat transfer fin to dissipate a portion of the heat generated by the fuel cell through exposed outer peripheral edges thereof. Each heat pipe separator plate also includes voids formed in an interior planar surface thereof, to be aligned with voids of other heat pipe separator plates when the fuel cell assembly is arranged in a stack. Upper voids are to define upper interior channels in fluid communication with a portion of the air stream supplied to the cathode. A heat transfer insert is arranged in the upper voids, and includes internal heat transfer fins to dissipate another portion of the heat into the upper interior channels for contact with the air stream.


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