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:
May. 02, 2017

Filed:

Jun. 03, 2014
Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Andrew T. Haug, St. Paul, MN (US);

Steven J. Hamrock, Stillwater, MN (US);

Gregory M. Haugen, Edina, MN (US);

Mark A. Schonewill, Bloomington, MN (US);

Assignee:

3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 8/10 (2016.01); H01M 8/1044 (2016.01); H01M 4/88 (2006.01); H01M 8/1004 (2016.01); H01M 8/1067 (2016.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1044 (2013.01); H01M 4/8652 (2013.01); H01M 4/8668 (2013.01); H01M 4/8673 (2013.01); H01M 4/8828 (2013.01); H01M 8/1004 (2013.01); H01M 8/1067 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0091 (2013.01); Y02E 60/521 (2013.01);
Abstract

A fuel cell electrode layer may include a catalyst, an electronic conductor, and an ionic conductor. Within the electrode layer are a plurality of electronic conductor rich networks and a plurality of ionic conductor rich networks that are interspersed with the electronic conductor rich networks. A volume ratio of the ionic conductor to the electronic conductor is greater in the ionic conductor rich networks than in the electronic conductor rich networks. During operation of a fuel cell that includes the electrode layer, conduction of electrons occurs predominantly within the electronic conductor rich networks and conduction of ions occurs predominantly within the ionic conductor rich networks.


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