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Proton exchange membrane fuel cell plate comprising combined flow channel

A fuel cell plate and proton exchange membrane technology, which is applied to fuel cell components, battery electrodes, circuits, etc., can solve problems such as poor drainage capacity, and achieve the effects of prolonging residence time, increasing heat dissipation area, and sufficient reaction

Inactive Publication Date: 2008-09-03
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To some extent, the grid flow field is a method of abandoning the flow channel. This design has greater flexibility. Because the flow velocity in this flow field is relatively low, the drainage capacity is relatively poor, but its moisture retention capacity is relatively high. powerful

Method used

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  • Proton exchange membrane fuel cell plate comprising combined flow channel
  • Proton exchange membrane fuel cell plate comprising combined flow channel
  • Proton exchange membrane fuel cell plate comprising combined flow channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Align parallel runners and matrix vias according to the appendix figure 1 A two-in-one combination is performed to form a combined flow channel, and the parallel flow channels run through both ends of the cathode plate, wherein: the width and height of the grooves of the parallel flow channels are 0.5 mm and 0.8 mm, respectively. The through hole is a circular through hole, the hole depth is 0.6mm, and the through hole accounts for 60% of the area of ​​the parallel flow channel. Set the snake runner according to the appendix figure 2 through both ends of the anode plate. Parallel thorns are arranged on the edge of one side of the anode and cathode plates according to 0.5 times the number of parallel flow channels. Attached image 3 The above-mentioned anode plate, cathode plate and ten membrane electrodes are used to form a fuel cell stack, the size of which is 30mm×60mm×60mm. The fuel cell stack operates stably at normal pressure and 50°C, with an output power of ...

Embodiment 2

[0027] Align parallel runners and matrix vias according to the appendix figure 1 A two-in-one combination is performed to form a combined flow channel, and the parallel flow channels run through both ends of the cathode plate, wherein: the width and height of the grooves of the parallel flow channels are 1.3 mm and 2.2 mm, respectively. By engraving parallel flow channels on both sides of the cathode plate, a square through hole is formed, the hole depth is 1mm, and the through hole accounts for 70% of the area of ​​the parallel flow channel. Set the snake runner according to the appendix figure 2 through both ends of the anode plate. Parallel thorns are arranged on the edge of one side of the anode and cathode plates according to 1.2 times the number of parallel flow channels. Attached image 3 The above-mentioned anode plate, cathode plate and ten membrane electrodes are used to form a fuel cell stack, the size of which is 30mm×60mm×60mm. The fuel cell stack operates st...

Embodiment 3

[0029] Align parallel runners and matrix vias according to the appendix figure 1A two-in-one combination is performed to form a combined flow channel, and the parallel flow channels run through both ends of the cathode plate, wherein: the width and height of the grooves of the parallel flow channels are 2.5 mm and 2.8 mm, respectively. By engraving parallel flow channels on both sides of the cathode plate, a square through hole is formed, the hole depth is 1.3mm, and the through hole accounts for 50% of the area of ​​the parallel flow channel. Set the snake runner according to the appendix figure 2 through both ends of the anode plate. Parallel thorns are arranged on the edge of one side of the anode and cathode plates according to 1.5 times the number of parallel flow channels. Attached image 3 The above-mentioned anode plate, cathode plate and ten membrane electrodes are used to form a fuel cell stack, the size of which is 30mm×60mm×60mm. A common fan is installed alon...

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Abstract

This invention discloses a proton exchange film fuel cell plate containing combined stream channel, which can improve the draining performance of the fuel cell plate, and make the fuel cell run stably, wherein the cathode plate is composed of the parallel channel and matrix through-hole, and the anodic plate has the snake type channel; wherein the parallel channel is the used to radiate heat and exhaust or intake and impenetrate the two ends of the cathode plate, and the through-hole is distributed in the groove of the parallel channel. And the related fuel cell plate border's one side or surrounding also has parallel lunge sheet. This invention can be used to make mini-type or small-sized fuel cell.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a proton exchange membrane fuel cell electrode plate containing combined flow channels. technical background [0002] With the increasing shortage of natural resources, the gradual exhaustion of fossil energy such as petroleum and the improvement of people's awareness of environmental protection, the research and development of fuel cells has received more attention and rapid development. A fuel cell is an electrochemical device that directly converts chemical energy into electrical energy in an efficient and environmentally friendly manner, with a theoretical conversion rate of over 80%. Proton exchange membrane fuel cells (PEMFCs) have the advantages of light weight, compact structure, easy drainage, high energy density, fast start-up at low temperatures, etc., and use solid electrolytes that are not corrosive, especially as portable power sources and motor vehicle power. It has a wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86H01M8/02
CPCY02E60/50
Inventor 沈培康曾蓉严志远
Owner SUN YAT SEN UNIV
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