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Continuous preparation device and method for fuel cell membrane electrode

A technology for fuel cells and preparation devices, applied in fuel cells, electrochemical generators, sustainable manufacturing/processing, etc., can solve problems such as effective control of the operation and processing of proton exchange membranes, cost waste, and low efficiency

Active Publication Date: 2019-12-24
上海好世材料科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0013] In order to fundamentally solve the inability of the existing membrane electrode preparation technology to effectively control the operation and processing of the proton exchange membrane in the CCM membrane electrode processing, resulting in low efficiency and low yield of the existing technology, the cost of the proton exchange membrane and electrode is high. Materials such as layers cause huge waste and other problems. The present invention provides a process and device for preparing continuous CCM membrane electrodes and can be further processed into MEA membrane electrode monomers. The surface coating electrode layer uses a surface-treated self-adsorption carrier film that can be bonded and peeled off multiple times as a carrier and production information recorder, and a continuous CCM membrane electrode coil is prepared through a precise conveying system At the same time, the quality control of the CCM membrane electrode is carried out through the electrode layer detection system, and the self-adsorption carrier film can be used as the carrier, and the process of gas diffusion layer bonding and gas sealing layer bonding can be carried out by the precise delivery system to prepare the MEA membrane electrode. Carry out quality management of MEA membrane electrodes through reliability testing, and prepare MEA membrane electrode monomers that meet industrial standards after synchronous cutting

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  • Continuous preparation device and method for fuel cell membrane electrode
  • Continuous preparation device and method for fuel cell membrane electrode
  • Continuous preparation device and method for fuel cell membrane electrode

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preparation example Construction

[0132] The preparation method of the fuel cell CCM membrane electrode that the present invention proposes comprises the following steps:

[0133] It can adapt to the continuous roll-to-roll processing of proton exchange membranes of various materials, and its processing process covers double-sided pretreatment, coating, testing, laminating, quality control, cutting and other processes;

[0134] It can adapt to the continuous roll-to-roll processing of proton exchange membranes of various thicknesses, including the continuous roll-to-roll processing of proton exchange membranes with extremely thin thickness and close to the limit of mechanical properties. The processing process covers double-sided pretreatment, coating, Inspection, lamination, quality control, cutting and other processes;

[0135] In the whole process of continuous roll-to-roll processing, a self-absorbing carrier film is used as the carrier conveying system and production data recording medium to achieve preci...

Embodiment 1

[0217] In this embodiment, the original state of the proton exchange membrane is a roll. Before the electrode layer A is coated, the original roll-shaped proton exchange membrane is linearly conveyed by the raw material unwinding device. The front side of the proton exchange membrane released in the original roll shape is defined as the A side, and the other side has the original protective film P. In this embodiment, the side with the original protective film P is defined as the B side of the proton exchange membrane.

[0218] This embodiment provides a continuous CCM membrane electrode preparation method, which is implemented through the following technical solutions:

[0219] 1) peeling off the original protective film P of the proton exchange membrane;

[0220] 2) Attaching the self-adsorption supporting membrane S1 on the B side of the proton exchange membrane;

[0221] 3) Coating and drying the electrode layer A on the A side of the proton exchange membrane;

[0222] 4...

Embodiment 2

[0237] The preparation method of the continuous CCM membrane electrode of this embodiment comprises the following steps:

[0238] 1) Peel off the original bottom membrane P on the B side of the proton exchange membrane, and attach the self-absorbing carrier film S1. When bonding, apply a voltage and current intensity of 20KV / 500mA to 50KV / 1000mA on the self-adsorbing carrier film S1, and the polarity of the electric field It is the positive electrode or the negative electrode, and after lamination, it forms an easy-to-transport whole with the proton exchange membrane;

[0239] Wherein, the self-absorbing carrier film S1 undergoes at least one of surface activation treatment, physical processing treatment, and chemical method treatment to make it surface purified and kept transparent / close to transparent, and does not contain any adhesives and other substances that cause adhesion. , polluting substances;

[0240] Among them, the release action of the self-absorbing carrier fil...

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Abstract

The invention discloses a continuous preparation device and method for a fuel cell MEA membrane electrode. The device comprises a continuous preparation device for a roll fuel cell CCM membrane electrode and a continuous preparation device for a sheet fuel cell MEA membrane electrode. According to the device and method, which are provided by the invention, electrode layers are coated on both sidesof a proton exchange membrane; a self-adhesive carrier membrane capable of repeated simultaneous attachment and peeling is used as a carrier and a production information recorder to prepare a continuous CCM membrane electrode coil, wherein the surface of the self-adhesive carrier membrane is processed; the self-adhesive carrier membrane is further used as the carrier; relying on a precise conveying system, the processes of gas diffusion layer bonding and gas sealing layer bonding are carried out to prepare an MEA membrane electrode monomer; and synchronous cutting is carried out to acquire the MEA membrane electrode monomer meeting industrial standards. The high-efficiency, intelligent, integrated and fully-closed device disclosed by the invention can greatly improve the production capacity and greatly reduce the cost of the membrane electrode monomer.

Description

technical field [0001] The invention belongs to the technical field of hydrogen energy fuel cell (Proton exchange membrane fuel cell-PEMFC), and specifically relates to a high-standard automatic manufacturing process technology and device for manufacturing a key component of a fuel cell—a membrane electrode. Background technique [0002] Fuel cell technology is a multidisciplinary and comprehensive technology. It is a device that converts chemical energy into electrical energy through the chemical reaction of hydrogen and oxygen. As long as the hydrogen fuel is continuously supplied, the fuel cell can continuously provide electrical energy, and can achieve pollution-free, zero-energy Emissions are recognized globally as a new energy solution for the future. At present, major developed countries in the world attach great importance to the development and application of fuel cell technology, especially some developed countries in Europe and the United States and Japan. Techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1004
CPCH01M8/1004H01M4/8828H01M4/8882H01M4/88Y02P70/50Y02E60/50
Inventor 王晓晴
Owner 上海好世材料科技有限公司
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