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A device and method for continuously preparing fuel cell gas diffusion layers

A gas diffusion layer, fuel cell technology, applied in printing devices, electrical components, battery electrodes, etc., to achieve the effect of continuous coating and speeding up production cycle

Active Publication Date: 2020-12-22
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a device and method for continuously preparing fuel cell gas diffusion layers to solve the problem of continuous preparation of fuel cell gas diffusion layers

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  • A device and method for continuously preparing fuel cell gas diffusion layers
  • A device and method for continuously preparing fuel cell gas diffusion layers

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Embodiment Construction

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0050]In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two c...

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Abstract

The invention belongs to the technical field of fuel cells, and discloses a device and a method for continuously preparing a gas diffusion layer of a fuel cell. The device comprises: a feeding end conveying belt which is driven by a first motor to continuously convey raw material carbon paper from a raw material carbon paper support; a screen printing machine which is used for coating to obtain microporous layer carbon paper; a discharging end conveying belt which is driven by a second motor to operate and continuously convey the microporous layer carbon paper to sequentially pass through thevacuum drying oven and the high-temperature atmosphere drying oven to obtain a gas diffusion layer to roll the gas diffusion layer; a feeding end conveying belt which is connected with a first vacuumpump, wherein the discharging end conveying belt is connected with a second vacuum pump; and a synchronous controller which controls the first motor and the second motor to start and stop synchronously. The feeding end conveying belt and the discharging end conveying belt are connected with the first vacuum pump and the second vacuum pump correspondingly to provide vacuum adsorption, and stable and continuous conveying of raw material carbon paper is guaranteed; the synchronous start and stop of the first motor and the second motor are beneficial to accelerating the production takt and realizing the continuous coating of the raw material carbon paper.

Description

technical field [0001] The invention relates to the technical field of new energy fuel cells, in particular to a device and method for continuously preparing fuel cell gas diffusion layers. Background technique [0002] Fuel cells are becoming an ideal way of energy utilization because of their high energy conversion efficiency, no noise, and no pollution. However, the durability and high cost of fuel cells are currently a major bottleneck restricting the commercialization of fuel cells. The fuel cell membrane electrode is the core component of the fuel cell stack, which consists of a proton exchange membrane, a catalyst, and a gas diffusion layer. The gas diffusion layer plays the role of electron conduction, current collection, gas conduction, drainage, and supporting membrane electrodes. At present, the main factors affecting the development of gas diffusion layer are cost and process. [0003] The gas diffusion layer of the fuel cell is composed of a hydrophobic layer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88B41F15/08B41F15/12B41F15/42B41M1/12
CPCB41F15/08B41F15/12B41F15/42B41M1/12H01M4/8807Y02E60/50
Inventor 曹婷婷马千里米新艳崔新然王茁李军泽
Owner FAW JIEFANG AUTOMOTIVE CO
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