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Multi-attribute reconstruction method for interlayer cracks in hydrogen fuel cells

A fuel cell, multi-attribute technology, used in fuel cells, circuits, electrical components, etc., can solve the problem of inability to analyze the distribution of components on the surface of cracks between layers of fuel cells

Inactive Publication Date: 2019-03-15
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no reconstruction method for fuel cell layer gaps
Current reconstruction methods for fractures in rocks cannot analyze the surface composition distribution of interlayer fractures in fuel cells

Method used

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  • Multi-attribute reconstruction method for interlayer cracks in hydrogen fuel cells
  • Multi-attribute reconstruction method for interlayer cracks in hydrogen fuel cells
  • Multi-attribute reconstruction method for interlayer cracks in hydrogen fuel cells

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Experimental program
Comparison scheme
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Embodiment Construction

[0036] The specific embodiment of the present invention will be described with reference to the accompanying drawings.

[0037] A multi-attribute reconstruction method for hydrogen fuel cell interlayer cracks, comprising the following steps:

[0038] 1. Making membrane electrode positioning holes

[0039] The P side and N side of a square membrane electrode with a thickness of 200 microns and a side length of 10 mm are covered with a layer of gold foil with a thickness of 10 microns and a side length of 10 mm, and then the focused ion beam is used to drill on both sides. 5 cylindrical membrane electrode positioning holes with a depth of 20 microns and a diameter of 20 microns, and the 5 membrane electrode positioning holes are asymmetrically distributed; figure 2 As shown, the five membrane electrode positioning holes are A, B, C, D, and E respectively.

[0040] During the square sample experiment, the sample may be randomly rotated by 90 degrees or 180 degrees, and the asy...

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Abstract

The invention relates to the technical field of hydrogen cells, in particular to a multi-attribute reconstruction method for interbedded cracks of hydrogen cells. The multi-attribute reconstruction method for interbedded cracks of hydrogen cells comprises the following steps: constructing an interbedded crack geometric structure model by using a CT scanning method; carrying out element scanning onthe surfaces of the cracks by using an EDS method; establishing a crack surface component model; and then matching the geometric structural model with the component model to construct an interbeddedcrack multi-attribute model. According to the multi-attribute reconstruction method for the interbedded cracks of the hydrogen cells, asymmetric holes are drilled in a crack surface, the crack surfaceis sprayed with titanium, the spatial position of geometric structural data, which are obtained by CT scanning, of the interbedded crack surface can be matched with the spatial position of componentdistribution data obtained by EDS scanning, therefore, combined analysis of CT scanning and EDS scanning is realized, the geometric structure of the interbedded cracks can be analyzed, and furthermore, component information of corresponding positions can be given.

Description

technical field [0001] The invention relates to the technical field of hydrogen fuel cells, in particular to a multi-attribute reconstruction method for interlayer cracks in hydrogen fuel cells. Background technique [0002] A hydrogen fuel cell is a chemical battery built on the basis of redox principles using hydrogen as the input fuel. Compared with lithium batteries, hydrogen fuel cells have higher energy density, faster energy replenishment, longer life cycle, and less secondary pollution of waste batteries to the environment. They are one of the types of power batteries for new energy vehicles. [0003] figure 1 It is a schematic diagram of the structure of a hydrogen fuel cell. The membrane electrode is a film-like structure. The membrane electrode has two surfaces, of which the side close to the anode is the P side of the membrane electrode, and the side close to the cathode is the N side of the membrane electrode; the side of the anode diffusion layer close to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04664H01M8/1004H01M8/1007
CPCH01M8/04671H01M8/1004H01M8/1007Y02E60/50
Inventor 马慧芳郭文跃赵联明朱后禹唐明明
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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