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Three-dimensional graphic surface proton exchange membrane for fuel cell as well as preparation method and application of three-dimensional graphic surface proton exchange membrane

A technology of proton exchange membranes and three-dimensional graphics, applied in fuel cells, battery electrodes, circuits, etc., can solve problems such as environmental pollution by-products, time-consuming, cumbersome processes, etc., to reduce the risk of damage to proton exchange membranes, High efficiency, safe and reliable process

Active Publication Date: 2021-11-23
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this process is that the process is cumbersome, takes a long time and is prone to by-products that cause environmental pollution.

Method used

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  • Three-dimensional graphic surface proton exchange membrane for fuel cell as well as preparation method and application of three-dimensional graphic surface proton exchange membrane
  • Three-dimensional graphic surface proton exchange membrane for fuel cell as well as preparation method and application of three-dimensional graphic surface proton exchange membrane
  • Three-dimensional graphic surface proton exchange membrane for fuel cell as well as preparation method and application of three-dimensional graphic surface proton exchange membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing a proton exchange membrane with a three-dimensional graphic surface for a fuel cell, the preparation process refers to figure 1 , including the following steps:

[0031] The first step is to establish a mold model of 2cm*2cm*2mm, the height of 2mm from the side of the graphic is the origin, and the height of the bottom bracket is 1.5mm, which can ensure the flatness of the mold plane during the printing process and ensure the printing accuracy. The total height of the model is 3.5mm, and the surface sine function surface is 0.1mm sin8x (such as figure 2 ). This structure has the effect of reducing the dead zone of the catalyst and reducing the transmission resistance. The raw material of the mold is photosensitive resin, which overcomes the defect that the traditional imprinting process can only use metal mold materials, and has the characteristics of low cost and wide source of materials.

[0032] In the second step, the mold is printed using...

Embodiment 2

[0038] Except that the parameters of the sinusoidal function surface of the mold are changed to 0.1mm sin6x, the rest are the same as in Embodiment 1.

Embodiment 3

[0040] Except that the parameters of the mold sine function surface are changed to 0.1mm sin4x, the rest are the same as in Embodiment 1.

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Abstract

The invention discloses a three-dimensional graphic surface proton exchange membrane for a fuel cell as well as a preparation method and application of the three-dimensional graphic surface proton exchange membrane. The preparation method of the proton exchange membrane comprises the steps of a 3D printing process and a hot stamping process. The 3D printing process is used for printing a precise pattern hot stamping mold, and the hot stamping process is used for preparing a high-specific-surface-area proton exchange membrane with a three-dimensional pattern. A high-hardness polymer material is adopted as a raw material of the hot stamping mold, and the defects of a traditional preparation process based on a metal mold are overcome; and the hot stamping process adopts an upper buffer layer structure and a lower buffer layer structure, and has the characteristic of one-step stamping forming. The prepared and formed proton exchange membrane with the surface pattern structure has a high specific surface area, a rapid proton transmission channel can be provided, the three-phase boundary of a fuel cell membrane electrode can be expanded, so that the output performance of the fuel cell is improved; and the proton exchange membrane with the surface pattern structure can effectively improve water management of a hydrogen fuel cell, and construction of the proton exchange membrane fuel cell with high performance and long service life is realized.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a proton exchange membrane with a three-dimensional graphic surface for a fuel cell, a preparation method and application thereof. Background technique [0002] Proton exchange membrane fuel cell, as a new type of environmentally friendly energy technology, has a very broad development potential and application prospects. Compared with other energy conversion devices, fuel cells have the characteristics of high energy conversion efficiency and high power density. At the same time, there is no greenhouse gas emission, and it supports low temperature startup. This series of advantages makes fuel cells have broad application prospects in automobiles and portable power generation equipment. Therefore, the research and development of new high-efficiency proton exchange membrane fuel cells has become a hot spot in the field of new energy research, and the development o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B29C64/10B29C51/08B33Y10/00H01M8/1039H01M8/1069
CPCB29C33/3842B29C64/10B29C51/08B33Y10/00H01M8/1076H01M8/1039H01M2004/8689Y02E60/50Y02P70/50
Inventor 袁伟柯育智苏日鹏方程李锦广
Owner SOUTH CHINA UNIV OF TECH
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