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Simplified fuel cell humidifier design

A fuel cell and humidifier technology, applied in fuel cells, fuel cell additives, electrochemical generators, etc., can solve problems such as high proton conduction resistance and high ohmic voltage loss

Inactive Publication Date: 2014-10-15
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a lower water content of the membrane results in a higher resistance to proton conduction and thus a higher ohmic voltage loss

Method used

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  • Simplified fuel cell humidifier design
  • Simplified fuel cell humidifier design
  • Simplified fuel cell humidifier design

Examples

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Embodiment Construction

[0048] Reference will now be made in detail to 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. It should be understood, however, that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various and alternative forms. Therefore, specific details disclosed herein are not to be construed as limiting the invention, but merely as a representative basis for any aspect of the invention and / or as a means of teaching one skilled in the art to variously employ the present invention. representative basis.

[0049] Except in the examples, or where expressly stated otherwise, all quantities in this specification expressing amounts of materials or states of reactivity and / or use are to be understood as being replaced by the word "about" in describing the broadest scope of the invention. Mod...

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Abstract

The invention relates to a simplified fuel cell humidifier design. A fuel cell humidifier with a pleated separation layer between a wet side and a dry side is provided. The fuel cell humidifier includes an enclosure having a first inlet, first outlet, and a first gas flow region that allow flow of a first gas through the humidifier. The fuel cell humidifier also includes a second inlet and second outlet, and a second gas flow region that allow flow of a second gas through the humidifier. Characteristically, the first gas has a higher relative humidity than the second gas. A pleated diffusion medium separates the first flow region and the second flow region such that water from the first gas flows to the second gas thereby increasing the relative humidity of the second gas.

Description

technical field [0001] The present invention relates to fuel cells, and more particularly to humidification of fuel cells. Background technique [0002] Fuel cells are used as power sources in many applications. In particular, fuel cells are proposed for use in automobiles in place of internal combustion engines. Commonly employed fuel cell designs utilize solid polymer electrolyte ("SPE") membranes or proton exchange membranes ("PEM") to provide ion transport between the anode and cathode. [0003] In proton exchange membrane type fuel cells, hydrogen is supplied to the anode as fuel and oxygen is supplied to the cathode as oxidant. Oxygen can be in the form of pure oxygen (O 2 ) or air (O 2 with N 2 mixture). PEM fuel cells typically have a membrane electrode assembly ("MEA") in which a solid polymer membrane has an anode catalyst on one side thereof and a cathode catalyst on the opposite side. The anode and cathode layers of a typical PEM fuel cell are constructed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04
CPCY10T29/49396Y02E60/50H01M8/04149
Inventor W.L.马茨
Owner GM GLOBAL TECH OPERATIONS LLC
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