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Fuel cell microseal and a method of manufacture thereof

A technology for fuel cells and seals, which is applied to fuel cell parts, fuel cells, and battery pack parts, etc. It can solve the problems of reducing firmness, failing to fully improve the bending load of metal bezels, and failing to maintain sealing contact, etc.

Active Publication Date: 2018-07-31
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As shown in Figure 1B, unfortunately, sealing contact cannot be guaranteed when the metal bead is bent, especially in the central region where the metal bead 116 bends
Failure to maintain sealing contact reduces robustness against misalignment of central axis 117 as shown in FIG. 1C
Given a set of metal properties including metal thickness specifications and metal bead geometry, the bending load of the metal bead may not be sufficiently improved by varying the metal form alone

Method used

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  • Fuel cell microseal and a method of manufacture thereof
  • Fuel cell microseal and a method of manufacture thereof
  • Fuel cell microseal and a method of manufacture thereof

Examples

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Embodiment Construction

[0031] Reference will now be made in detail to presently preferred compositions, embodiments and methods of the invention, which constitute the best mode currently known to the inventors for practicing the disclosure. The drawings are not necessarily drawn to scale. It should be understood, however, that the disclosed embodiments are merely examples of the disclosure, which may be embodied in various 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 disclosure and / or as a representative example for teaching one skilled in the art to variously employ the present disclosure. Base.

[0032] Except where expressly indicated in the examples or otherwise, all numerical quantities in this specification indicating amounts of materials or reaction conditions and / or uses should be understood to be defined by the word " about" modification. Practice within the stated numeric...

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PUM

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Abstract

A microseal for a metal bead seal joint includes a substantially horizontal surface, first and second substantially vertical surfaces disposed on opposite ends of the substantially horizontal surface,and a contoured surface operatively configured to adhere to a portion of a metal bead. The contoured surface may be disposed opposite the substantially horizontal surface and may be integral to the first and second substantially vertical surfaces. The substantially horizontal surface may be operatively configured to substantially maintain its horizontal surface orientation in both a compression state and a non-compression state.

Description

technical field [0001] The present disclosure relates to fuel cell microseals, and in particular, to fuel cell microseals that prevent bending of metal beads integrally formed into fuel cell plates. Background technique [0002] Fuel cells are used as power sources in many applications. In particular, it has been proposed to use fuel cells in automobiles instead of internal combustion engines. Commonly used fuel cell designs use solid polymer electrolyte (SPE) membranes or proton exchange membranes (PEM) to provide ion transport between the anode and cathode. [0003] A fuel cell is typically an electrochemical device that converts the chemical energy of a fuel (hydrogen, methanol, etc.) and an oxidant (air or pure oxygen) into electricity, heat, and water in the presence of a catalyst. Fuel cells generate clean energy throughout the electrochemical conversion of fuel. Therefore, fuel cells are environmentally friendly due to zero or very low emissions. Moreover, fuel ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0271H01M8/0276
CPCH01M8/0271H01M8/0276H01M8/0284H01M2008/1095H01M8/0286Y02P70/50Y02E60/50Y02E60/10H01M50/183
Inventor A·梁杨曦席亮S·徐
Owner GM GLOBAL TECH OPERATIONS LLC