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Polar plate convex runner structure, battery metal polar plate and hydrogen fuel cell bipolar plate

A metal plate and cathode metal technology, applied in the direction of fuel cells, circuits, electrical components, etc., to achieve the effects of preventing excessive compression, balancing preload, and optimizing size

Pending Publication Date: 2022-04-19
佛山仙湖实验室
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a convex flow channel structure of a pole plate, a battery metal pole plate and a hydrogen fuel cell bipolar plate, so as to solve one or more technical problems existing in the prior art and provide at least one beneficial option or create conditions

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  • Polar plate convex runner structure, battery metal polar plate and hydrogen fuel cell bipolar plate
  • Polar plate convex runner structure, battery metal polar plate and hydrogen fuel cell bipolar plate
  • Polar plate convex runner structure, battery metal polar plate and hydrogen fuel cell bipolar plate

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Embodiment Construction

[0023] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.

[0024] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0025] I...

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Abstract

The invention discloses a pole plate convex runner structure, a battery metal pole plate and a hydrogen fuel cell bipolar plate, the hydrogen fuel cell bipolar plate comprises two battery metal pole plates and a membrane electrode, each battery metal pole plate comprises a pole plate convex runner structure, each pole plate convex runner structure comprises a plate body, the plate body is provided with an active region, and the active region is provided with an active region; a plurality of first step bosses are convexly arranged on the active region on the cooling liquid flow field side, and a first step groove is formed between every two adjacent first step bosses; the plurality of first step bosses form a plurality of second step grooves on the gas field side, and the plurality of first step grooves form a plurality of second step bosses on the gas field side. The air field side and the cooling liquid flow field side are respectively provided with a flow channel with a convex stepped groove-shaped section, the notch of the stepped groove can be enlarged, and the sectional area of the cooling liquid flow channel is increased and the air diffusion rate and the cooling liquid flow resistance are balanced within a certain range under the condition that the aperture ratio of the flow channel is ensured.

Description

technical field [0001] The invention relates to the technical field of hydrogen fuel cells, in particular to a pole plate convex flow channel structure, battery metal pole plates and hydrogen fuel cell bipolar plates. Background technique [0002] Proton exchange membrane fuel cell is an energy conversion device that can directly convert chemical energy in hydrogen and other reaction fuels into electrical energy. High efficiency and other advantages have broad development and application prospects in the future. [0003] The fuel cell bipolar plate is one of the important components of the fuel cell stack, and the metal bipolar plate has the characteristics of small size and fast forming. The combination of bipolar plate and membrane electrode (MEA) divides the stack into three chambers of air, hydrogen and cooling liquid. The diffusion rate of the cathode gas (air / oxygen) is lower than that of the anode gas (hydrogen), so it is necessary to give priority to the flow chann...

Claims

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Application Information

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IPC IPC(8): H01M8/0258H01M8/0265
CPCH01M8/0258H01M8/0265Y02E60/50
Inventor 汤歌尘洪丰郭伟潘牧戈琛范卫东向蔚梅坚张立昌
Owner 佛山仙湖实验室
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