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pps electrode reinforcement material/crack mitigator

A technology of metal electrode assembly and anode catalyst layer, which is applied in battery electrodes, circuits, fuel cells, etc.

Active Publication Date: 2016-06-22
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While current techniques for fabricating ion-conducting membranes work reasonably well, there is still room for improvement

Method used

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  • pps electrode reinforcement material/crack mitigator
  • pps electrode reinforcement material/crack mitigator
  • pps electrode reinforcement material/crack mitigator

Examples

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Embodiment Construction

[0054] Reference will now be made in detail to presently preferred compositions, embodiments and methods of the invention, which constitute the best modes presently known to the inventors for carrying out the invention. The drawings are not necessarily drawn to scale. However, it should be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various and alternative forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for any aspect of the invention and / or as a representative basis for teaching one skilled in the art to variously employ the invention.

[0055] Except in the examples, or where expressly indicated otherwise, all quantities in this specification indicating amounts of material or conditions of reaction and / or use are to be understood as modified by the word "about" in describing the broadest scope of the invention. Practice within the num...

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Abstract

A metal electrode assembly for fuel cell applications includes a cathode catalyst layer, an anode catalyst layer, and an ion-conducting membrane disposed between the cathode catalyst layer and the anode catalyst layer. The cathode catalyst layer or the anode layer each independently including a catalyst composition and a first polymer wherein at least one of the cathode catalyst layer or the anode layer include a first polymer and polyphenylene sulfide-containing structures. A method for making a fuel cell catalyst layer is also provided.

Description

technical field [0001] The present invention relates to methods for manufacturing fuel cell components. Background technique [0002] In a fuel cell of the proton exchange membrane type, hydrogen is supplied to the anode as a fuel, and oxygen is supplied to the cathode as an oxidant. Oxygen can be in pure form (O 2 ) or air (O 2 and N 2 mixture). Proton exchange membrane ("PEM") fuel cells typically have a membrane electrode assembly ("MEA") in which a solid polymer membrane has an anode catalyst on one face and a cathode catalyst on the opposite face. The anode and cathode layers of a typical PEM fuel cell are formed from porous conductive materials such as woven graphite, graphitized sheets or carbon paper to enable fuel to be dispersed on the membrane surface towards the fuel supply electrode. Typically, ionically conductive polymer membranes comprise perfluorosulfonic acid (PFSA) ionomers. [0003] Each catalyst layer has fine-grained catalyst particles, such as pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86H01M4/90H01M4/92
CPCC09D11/02H01M4/9008C09D11/52H01M4/8807H01M4/8846H01M4/9075H01M4/925H01M8/1007H01M2008/1095Y02E60/50Y02P70/50
Inventor J.米切尔T.J.富勒
Owner GM GLOBAL TECH OPERATIONS LLC