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Frame laminate material and application thereof in preparing membrane electrode with sealed frame core component

A laminated material with sealing technology, applied to battery electrodes, battery pack components, circuits, etc., can solve the problems of mechanical damage, aggravate mechanical damage, damage, etc.

Active Publication Date: 2010-08-11
武汉理工新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the very thin thickness of the polymer ion exchange membrane, it is easy to cause mechanical damage during the battery assembly process
During use, the polymer ion exchange membrane is easily affected by humidity and changes in size, which will further aggravate mechanical damage, so that it will be damaged after a period of use, and the sealing effect cannot be truly achieved

Method used

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  • Frame laminate material and application thereof in preparing membrane electrode with sealed frame core component
  • Frame laminate material and application thereof in preparing membrane electrode with sealed frame core component
  • Frame laminate material and application thereof in preparing membrane electrode with sealed frame core component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] 1) The edges on both sides of the frame laminate material used are parallel, and the thicknesses of the supporting film, the first adhesive layer, the frame film, the second adhesive layer and the protective film are respectively 100 μm, 10 μm, 20 μm, 10 μm, and 20 μm. The first adhesive layer and the second adhesive layer are adhesives. Punch out the frame stack, let the knife mold be perpendicular to the frame stack, punch out the active area from the side of the protective film to the side of the support film, the punching depth is 80-140 μm, the punching area is rectangular, the size is 50x50mm, Two of the edges of the active area are parallel to the edges on both sides of the frame laminate material, with a distance of 25 mm. After blanking is completed, keep the layers in the active area of ​​the frame laminate from peeling off;

[0079] 2) Peel off the first protective film of the Nafion212 film lamination with a width of 100mm by DuPont Company, and keep the se...

Embodiment 2

[0090] 1) The edges on both sides of the frame laminate material used are parallel, and the thicknesses of the supporting film, the first adhesive layer, the frame film, the second adhesive layer and the protective film are 150 μm, 10 μm, 20 μm, 10 μm, and 20 μm, respectively, The first adhesive layer and the second adhesive layer are adhesives, wherein the adhesive of the first adhesive layer is in a special state, and will not bond after being in contact with the polymer ion exchange membrane, and it will not be bonded when peeled off. There will be no partial or total attachment of the binder to the polymeric ion exchange membrane. Punch out the frame stack, make the knife edge of the knife die perpendicular to the stack plane, and punch out the active area from the side of the protective film to the side of the support film. The punching depth is 80-180 μm, the punching area is rectangular, and the size is 50x50mm, two edges of the active area are parallel to the edges on ...

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Abstract

The invention discloses a frame laminate material and application thereof in preparing a membrane electrode with a sealed frame core component. The frame laminate material has a structure of laminating a support membrane, a first adhesion layer, a frame membrane, a second adhesion layer and a protection membrane in turn. During preparing the membrane electrode with the sealed frame core component, the frame laminate is punched according to a certain rule before the preparation of an anode sealed frame and a cathode sealed frame is finished; and in the preparation process, the thickness and intensity of the frame laminate layer are enhanced in the presence of the support membrane. Therefore, the frame laminate has better processing feasibility and dimension stability; the prepared sealed frame has higher contraposition precision; and the preparation process is more easy to control. After the preparation of the sealed frame is finished, the support membrane is stripped. A catalyst layer is coated on an active region of a polymer ion exchange membrane before or after the preparation of the sealed frame so as to prepare the core component with the sealed frame; and then the core component with the sealed frame is compounded with an anode gas diffusion layer and a cathode gas diffusion layer to prepare the membrane electrode respectively.

Description

field of invention [0001] The invention relates to a method for preparing a membrane electrode with a core component of a sealing frame, wherein the raw material used in the preparation of the anode sealing frame and the cathode sealing frame is a laminated material. Background of the invention [0002] Polymer ion-exchange membrane fuel cell (PEMFC) has the advantages of high power density, high energy conversion efficiency, low-temperature start-up, and environmental friendliness. Today's deterioration has become one of the hot spots of international high-tech competition. Membrane electrode (MEA) is the most critical component of polymer ion exchange membrane fuel cells. It is mainly composed of two porous gas diffusion layers with good conductivity and a layer of polymer ion exchange membrane sandwiched between them. A large number of finely dispersed catalysts that can initiate electrochemical reactions are evenly distributed on the interface between the membrane and t...

Claims

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Application Information

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IPC IPC(8): H01M2/14H01M4/88B32B27/08
CPCY02E60/50
Inventor 潘牧艾勇诚宛朝辉李虎胡阿勇陈磊田明星
Owner 武汉理工新能源有限公司
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