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Frame for fuel cell membrane electrode and bonding system of frame and membrane

A fuel cell membrane and membrane system technology, which is applied to fuel cells, circuits, electrical components, etc., can solve the problem of increasing optical identification and positioning and manipulator grasping actions, uneven edges of coating catalyst areas, and unfavorable smooth and fast production. problem, to reduce inefficiency, reduce application and peel times, and design clever results

Pending Publication Date: 2021-05-11
大连锐格新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process generally wastes a certain percentage of expensive exchange membranes and measures need to be taken to reduce its waste
In the production process, various materials in the form of a single piece are picked up many times until a single MEA piece is finally formed. For continuous production, a lot of optical identification positioning and manipulator grabbing actions are added, which is prone to separation difficulties and sticking in picking. Problems, not conducive to smooth and rapid production
Additionally, the non-uniform nature of the edges of the previously independently formed catalyst-coated regions is a potential detriment to stack performance

Method used

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  • Frame for fuel cell membrane electrode and bonding system of frame and membrane
  • Frame for fuel cell membrane electrode and bonding system of frame and membrane
  • Frame for fuel cell membrane electrode and bonding system of frame and membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The basic structure of embodiment 1 frame

[0045] Frames are usually used in the production of membrane electrodes in roll form with backing paper. The frame continuous material 12 with backing paper is provided with several frames, and several connecting thin strips with connection function are arranged between adjacent frames, that is, the connecting thin strips 154a of the upper frame or the connecting thin strips 154b of the lower frame. There are positioning hole through-holes 17 for the positioning of the new three-in-one assembly of the present invention. The positioning hole through-holes 17 are on both sides of the traveling direction, and the through-holes pass through the backing paper. In the middle of the frame is a cut-out area, which is provided with a battery reaction area 16 for membrane assembly. The cut-out area also includes the fluid common channel blank space 13 of the frame on both sides of the battery reaction area 16, which belongs to the commo...

Embodiment 2

[0051] In conjunction with the accompanying drawings, the system of the present invention has the following structure:

[0052] The system includes a membrane system 3 , a lower frame system 2 and an upper frame system 4 ; wherein the upper frame system 4 is located above the lower frame system 2 . Membrane system 3 is located outside the upper and lower frame systems, and the cut film is absorbed by the migration suction plate 37 in the membrane system 3, and moved to the heat sealing table of the lower frame system 2 to transfer and provide the film. Reserve more space between the heat-sealing tables than is required for the traction plate transfer film.

[0053] The membrane system 3 includes a membrane roll 31, a membrane humidity control area 300, and a film shearing area connected in sequence, and the release liner area is connected to the membrane humidity control area 300;

[0054] Wherein, in the film humidity control area 300, the upper film nip roll and the lower f...

Embodiment 3

[0060] In this embodiment, the method for bonding the membrane of the fuel cell membrane electrode to the frame is described in detail in combination with the device mentioned in Embodiment 2. It should be pointed out that the time sequence of step S1 and step S2 is not strictly limited in the present invention, and step S1 and step S2 can be performed simultaneously in the actual production process. The forming and cutting of the frame in the present invention can be prepared in advance, or it can be prepared before assembly at the site where the new three-in-one is produced, and the frame is usually in the form of a roll with a backing paper. The opening of the exchange membrane installed in the frame is larger than the size of the exchange membrane, which is 0.2-1.5 mm larger than the size of each side.

[0061] S1. Lower frame feeding and positioning

[0062] Such as Figure 5 The lower frame feeding and positioning schematic diagram is shown, the lower frame coiled mate...

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Abstract

The invention belongs to the field of fuel cell manufacturing equipment, and provides a frame for a fuel cell membrane electrode and a frame and membrane bonding system, the system comprises a membrane system, a lower frame system and an upper frame system, the system realizes production continuity, and the membrane system, the lower frame system and the upper frame system are structurally improved, and the bonding effect of the film and the frame is improved. Before the membrane is coated with the catalyst, an assembly with a double-sided frame is formed for the membrane, the product is a membrane electrode assembly early-stage intermediate product which is connected by a coiled material frame material and can be folded and packaged or continuously conveyed, the membrane electrode assembly early-stage intermediate product can be subsequently conveyed to be coated with the catalyst to form a five-in-one product, and then the five-in-one product and a diffusion layer form a seven-in-one product; in the process, connection of each single piece of the product is kept, favorable conditions are provided for production continuity, and the catalyst layer has neat edges on the membrane.

Description

technical field [0001] The invention relates to the field of molding and processing of fuel cell membrane electrodes, more specifically, relates to a system for adhering the membrane and frame of fuel cell membrane electrodes, especially the technology of applying a frame to proton exchange membranes. Background technique [0002] The membrane electrode used in proton exchange membrane fuel cell is composed of proton exchange membrane, catalyst, diffusion layer and frame, which is called "seven-in-one" membrane electrode assembly. The proton exchange membrane in the middle is thin and soft, and the frame is used to clamp the exchange membrane. There is a diffusion layer on both sides of the membrane, and the frame and the diffusion layer together form a movable part with a certain strength, and then combined with the plate to form a single cell, and the single cell overlaps repeatedly to form a stack with a certain power . [0003] Since the proton exchange membrane is thin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1004
CPCH01M8/1004H01M2008/1095Y02E60/50Y02P70/50
Inventor 高鹏盛武林杜晓武刘绪鹏赵洪飞
Owner 大连锐格新能源科技有限公司
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