Invention Grant
- Patent Title: Patterned electrode catalyst
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Application No.: US16057485Application Date: 2018-08-07
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Publication No.: US10826076B1Publication Date: 2020-11-03
- Inventor: Natalia Macauley , Siddharth Komini Babu , Rangachary Mukundan , Mahlon S. Wilson , Rodney L. Borup , Stephen Grot
- Applicant: Natalia Macauley , Siddharth Komini Babu , Rangachary Mukundan , Mahlon S. Wilson , Rodney L. Borup , Stephen Grot
- Applicant Address: US NM Los Alamos
- Assignee: Triad National Security, LLC
- Current Assignee: Triad National Security, LLC
- Current Assignee Address: US NM Los Alamos
- Agency: Klarquist Sparkman, LLP
- Main IPC: H01M4/92
- IPC: H01M4/92 ; H01M4/86 ; H01M8/1004 ; H01M4/88

Abstract:
Disclosed herein are embodiments of a patterned electrode comprising regions of catalyst and segregating regions that separate the regions of catalyst. The segregating regions may be regions of non-catalytic material. The catalyst regions may correspond to the channels of a flow field. The electrode provides improved fuel cell performance, particularly at high current densities. The electrode may be for all suitable applications, such as in a membrane electrode assembly and/or a fuel cell. Also disclosed is a method for making the patterned electrode. The method may comprise using masks to apply the catalyst and non-catalyst material to a substrate.
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