Method for integrating directalcohol fuel cell membrane electrode assembly with three functions structure
A fuel cell membrane and functional structure technology, applied in the direction of fuel cells, battery electrodes, fuel cell parts, etc., to achieve the effects of good rigidity, long life, and easy stack assembly
Active Publication Date: 2007-11-14
DALIAN TIANLI ENG PLASTIC +2
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is that the existing membrane electrodes are easily deformed, unstable, the conductive film has poor sealing effect, the whole is easy to break, and the assembly of the battery stack is troublesome. In view of the above problems, the purpose of the present invention is to provide a The direct alcohol fuel cell membrane electrode assembly integration method with three functional structures with good strength and rigidity, no deformation, no cracks, long life, easy stack assembly, good stability, and integration of components overcomes the existing lack of technology
Method used
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Embodiment Construction
[0025] As shown in the figure: the method of the present invention is carried out as follows:
[0026] ①. First, the five-layer membrane electrode plate composed of the proton conducting membrane 14 and the anode catalyst layer 16, anode diffusion layer 17, cathode catalyst layer 13, and cathode diffusion layer 12 located on both sides of the proton conduction membrane 14 is processed to determine its Specifications, according to the need to form a certain length and width of the plate. Then use a cutting knife or a mold to cut the periphery of the anode catalyst layer 16, the anode diffusion layer 17, the cathode catalyst layer 13, and the cathode diffusion layer 12 on both sides, that is, remove a part, and make the periphery of the proton conductive membrane 14 in the middle protrude , the width of the protrusion is 5 mm or 6 mm or 8 mm or 9 mm or 10 mm, that is, it can be between 5 mm and 10 mm, and a hole 15 is processed on the protrusion;
[0027] 2. Make protective fra...
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Abstract
The invention is a direct alcohol fuel battery membrane electrode assembly integrating method with three functional structures, comprising the steps of: slicing catalyst layer and diffusion layer on two sides of five-layer wax electrode to make the periphery of the middle proton conductive film project by 5 mm-10 mm and making holes; making protective frame whose inside fits the diffusion layer, where one side of the protective frame is connected with seal layer and the other side is coated with adhesive; placing the protective frame and five-layer membrane electrode between upper and lower dies and locating them by guide column on the lower die; using ultrasonic heater for ultrasonic vibration to integrate them. And the obtained products have features of good strength and rigidity, no deformation, no cracking, easy to assemble galvanic pile, and the fuel battery has good stability and long service life.
Description
technical field [0001] The invention relates to an integration method of components of a direct alcohol fuel cell, in particular to an integration method of a direct alcohol fuel cell membrane electrode assembly with three functional structures. Background technique [0002] A direct alcohol fuel cell is an energy conversion device that converts the chemical energy in fuel (methanol, ethanol, etc.) and oxidant (oxygen) into electrical energy according to the electrochemical principle. [0003] Direct alcohol fuel cells have the advantages of high energy conversion efficiency, environmental friendliness, low temperature operation, and high specific power. Therefore, DAFC can be used not only to build small power stations, but also to mobile power sources such as laptops, mobile phones, and PDAs. , small mobile radar, small mobile communication equipment, electric motorcycles, etc. [0004] Membrane electrode (MEA) is the core component of direct alcohol fuel cell, and it is ...
Claims
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IPC IPC(8): H01M8/02H01M4/88H01M8/1004H01M8/1011H01M8/1069
CPCY02E60/50
Inventor 孙公权谷顺学朗显中陈利泉原树连许万提
Owner DALIAN TIANLI ENG PLASTIC