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Radial flow field structure of fuel cell

A fuel cell and radial flow technology, which is applied in the direction of fuel cells, fuel cell components, circuits, etc., can solve the problems of unequal force and inability to adjust fuel cell assembly force, etc., to facilitate processing and production, and simple structure , the effect of improving work efficiency

Inactive Publication Date: 2022-07-08
CEMT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a fuel cell stack with adjustable force on the end plate, to solve the problem that the force on each point between the bipolar plates in the fuel cell in the prior art is not equal, and it is impossible to control the fuel cell inside during use. Technical Problems in Adjusting Assembly Force

Method used

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  • Radial flow field structure of fuel cell
  • Radial flow field structure of fuel cell
  • Radial flow field structure of fuel cell

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Embodiment Construction

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments.

[0023] The components of the embodiments of the invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.

[0024] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it should b...

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Abstract

The invention discloses a radial flow field structure of a fuel cell, and relates to the technical field of fuel cells, the radial flow field structure comprises a polar plate, an air inlet and an annular flow field, the annular flow field comprises a plurality of flow field areas which are annularly distributed from inside to outside, and each flow field area is internally provided with a plurality of radial flow channels which are distributed at equal angles; each radial flow channel extends along the radial direction of the polar plate, the junction of every two flow field areas is provided with a shunting flow channel extending along a joint arc line, the flow field area on the inner side of each shunting flow channel is provided with a corresponding radial flow channel communicated with the shunting flow channel, and the communication point of the radial flow channel and the shunting flow channel is positioned in the middle of the shunting flow channel; a plurality of corresponding radial flow channels are arranged in a flow field area on the outer side of each flow dividing flow channel and communicated with the flow dividing flow channel, and communication points of the radial flow channels and the flow dividing flow channels are evenly distributed in the extending direction of the flow dividing flow channels. The service life of the fuel cell is prolonged.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a radial flow field structure of a fuel cell. Background technique [0002] The bipolar plates of the components of the fuel cell are equipped with a flow field structure for the circulation of hydrogen and oxygen, so that the hydrogen and oxygen enter the interior of the fuel cell and are evenly distributed, and then react under the action of the catalytic membrane to generate electricity. [0003] The Chinese invention patent publication number CN111370726A discloses a fuel cell radial flow field structure, which promotes the full diffusion of the reaction gas in the flow field, improves the diffusion and mass transfer efficiency of the reaction gas, improves the output efficiency of the cell, and simultaneously reacts The gas diffuses evenly around through the flow channel holes, which ensures the uniform distribution of the gas in the flow field and avoids the occurrence o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0265H01M8/026H01M8/0263
CPCH01M8/0265H01M8/026H01M8/0263Y02E60/50
Inventor 徐真徐黎明常华健左涛宋书范侯俊波刘翀
Owner CEMT CO LTD
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