Bipolar plate membrane electrode assembly

A bipolar plate and membrane electrode technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of low pure oxygen and can not meet the requirements, and achieve the effect of increasing the assembly speed

Active Publication Date: 2014-10-08
江西德合医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Since this structure only contains one piece of membrane electrode assembly, the amount of pure oxygen produced by it is small, which cannot meet the requirements when a large flow of pure oxygen is required

Method used

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Experimental program
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Effect test

specific Embodiment 1

[0034] Specific embodiment one, see Figure 5 An anode encapsulation groove 17 is arranged around the anode gas diffusion layer 12 and the anode catalyst layer 13 of the encapsulated membrane electrode 3 , and the anode encapsulation groove 17 is encapsulated by an adhesive 18 .

specific Embodiment 2

[0035] Specific embodiment two, see Image 6 :

[0036] The anode gas diffusion layer 12 and the anode catalytic layer 13 of the packaged membrane electrode are provided with an inner anode packaging groove 19 around, and an outer anode packaging groove 20 is arranged around the anode surface 5 contacting the anode gas diffusion layer 12, and the inner anode packaging The groove 19 and the outer anode packaging groove 20 communicate with each other to form an integral anode packaging groove 17 .

[0037] When the bipolar plate membrane electrode assembly is used in an air-cooled fuel cell stack, see figure 1 , figure 2 , image 3: The two ends of the anode surface 5 are respectively provided with gas-collecting grooves, the gas-collecting grooves are the gas-inlet gas-gathering groove 7 and the gas-gas-gathering groove 8 respectively, and the air pipes are specifically the hydrogen gas inlet pipe 10 and the hydrogen gas outlet pipe 11 , the hydrogen gas inlet pipe 10 comm...

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Abstract

The invention provides a bipolar plate membrane electrode assembly. When the structure is used for an air cooling type fuel cell stack, air at the cathode side and air at the anode side are completely isolated, the airtightness is excellent, the cell performance is ensured, and the structure can reduce the stack weight and improve stack loading speed; and when the structure is used for assembling an oxygen preparing stack by air electrolysis, the number of the plates of the bipolar plate membrane electrode assembly can be determined according to the oxygen flow requirement, so that high-flow oxygen supply demand can be guaranteed. The bipolar plate membrane electrode assembly comprises bipolar plates and membrane electrodes, wherein one side of the bipolar plate is a cathode side, the other side of the bipolar plate is an anode side, and the membrane electrode is encapsulated between the cathode side of one bipolar plate and the anode side of another bipolar plate. The bipolar plate membrane electrode assembly is characterized in that an air straight channel penetrating lateral two sides is formed at the non-end position of the cathode side, a gas collection groove is formed at the end of the anode side, a gas flow channel groove is formed at the anode side and all the gas flow channel grooves are communicated to the gas collection groove.

Description

technical field [0001] The invention relates to the technical field of air-cooled proton exchange membrane fuel cells and the technical field of electrochemically producing pure oxygen, in particular to a bipolar plate membrane electrode assembly. Background technique [0002] The existing air-cooled fuel cell bipolar plate, its patent number: 201020606479.0, authorized announcement date: June 1, 2011, name: an air-cooled proton exchange membrane fuel cell bipolar plate, the patent records are as follows: [0003] One side of the bipolar plate is the cathode surface, and the other side is the anode surface. It is characterized in that: the cathode surface is provided with a cathode sealing groove cavity, and the cathode sealing groove cavity is wrapped with air parallel to the straight path, and the air parallel The straight channel communicates with the outside air through the air intake straight grooves on both sides, and the air intake straight groove is located inside th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86
CPCY02E60/50
Inventor 胡鸣若小笠原亮曹广益
Owner 江西德合医疗器械有限公司
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