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Method for manufacturing a fuel cell

A technology for fuel cells and seals, which is applied in the manufacturing of fuel cells, fuel cell components, and final products, and can solve problems such as the inability to fully improve the buckling load of metal beading.

Active Publication Date: 2019-08-27
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Given a set of metal properties and bead geometry (including metal thickness specifications), the buckling load of bead may not be sufficiently improved by varying the metal form alone

Method used

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  • Method for manufacturing a fuel cell
  • Method for manufacturing a fuel cell
  • Method for manufacturing a fuel cell

Examples

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Embodiment Construction

[0030] Reference will now be made in detail to the presently preferred compositions, examples and methods of the present disclosure, which constitute the best mode for implementing the present disclosure currently known by the inventors. These figures are not necessarily to scale. However, it should be understood that the disclosed embodiments are merely examples of the present disclosure, which can be implemented in various and alternative forms. Therefore, the specific details disclosed herein should not be construed as limiting, but merely as a representative basis for any aspect of the present disclosure and / or as a representative basis for teaching those skilled in the art to use the present disclosure in various ways.

[0031] Except in the examples or expressly indicated otherwise, all numerical values ​​in this specification indicating the amount of material or conditions of reaction and / or use should be understood as being modified by the word "about" when describing the...

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Abstract

A method for manufacturing a fuel cell includes the steps of: (1) providing a first bipolar plate and a second bipolar plate; (2) applying a first micro seal to the first bipolar plate at a first metal bead seal region; (3) applying a first contaminant seal to the first micro seal and the first metal bead seal region of the first bipolar plate, the first contaminant seal being configured to protect the first metal bead seal region from a debris piece; (4) assembling a UEA having a sub-gasket onto the first bipolar plate with a debris piece engaging with the first contaminant seal; and (5) compressing the second bipolar plate onto the first bipolar plate with the sub-gasket in-between while urging the first contaminant seal and the debris piece away from the first metal bead seal region. Alternatively, the first and second contaminant seals may be applied to the sub-gasket.

Description

Technical field [0001] The present disclosure relates to methods for manufacturing fuel cells used in vehicles. Background technique [0002] In many applications, fuel cells are used as power sources. In particular, it is recommended 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 usually an electrochemical device that converts the chemical energy of fuel (hydrogen, methanol, etc.) and oxidant (air or pure oxygen) into electricity, heat and water in the presence of a catalyst. The fuel cell generates clean energy during the entire electrochemical conversion process of fuel. Therefore, they are environmentally friendly due to zero or very low emissions. In addition, fuel cells are high-power systems that generate anywhere from a few watts to hundreds of kilowatts,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1007H01M8/0276H01M8/0286H01M8/0284
CPCH01M8/1007H01M8/0276H01M8/0286H01M8/0284H01M2008/1095H01M8/0297Y02P70/50Y02E60/50
Inventor M·M·费伊
Owner GM GLOBAL TECH OPERATIONS LLC