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A fuel cell deflector with high power density and high structural strength

A high power density, fuel cell technology, applied in the direction of fuel cells, fuel cell components, circuits, etc., can solve problems such as battery performance, operating efficiency and manufacturing cost impact

Active Publication Date: 2021-05-04
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The channel design of the flow field plate has a great influence on the battery performance, operating efficiency and manufacturing cost

Method used

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  • A fuel cell deflector with high power density and high structural strength
  • A fuel cell deflector with high power density and high structural strength
  • A fuel cell deflector with high power density and high structural strength

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Embodiment Construction

[0015]It is an object of the present invention to provide a fuel cell fluid plate having a high power density high structural strength. Next, the present invention will be further described below with reference to the accompanying drawings.

[0016]Such asFigure 1 ~ 4As shown, it is a fuel cell fluid plate facilitating the consistency of fluid flow rate and temperature distribution, which is a bonded bipolar plate, which is bonded by the positioning hole 10 by the positioning hole 10. The air guiding groove plate 1 and the hydrogen guiding groove plate 15 are formed; the guide flow bipolar plate is generally reached, and two raised portions 18 are extended along the side of the long side of the rectangular square; in the left bump portion The first cooling fluid flows into the hole 6, the second cooling fluid flows out of the aperture 20, and the first convex portion is provided with a second cooling fluid flow into the hole 7, the first cooling fluid flows out of the aperture 19; in t...

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Abstract

The invention discloses a fuel cell guide plate with high power density and high structural strength, belonging to the technical field of fuel cells. The guide plate is a guide bipolar plate, which is composed of an air guide groove plate and a hydrogen guide groove plate bonded together; the guide bipolar plate is generally rectangular, and two sides extend along one side of the long side of the cuboid. a raised part, the two cooling fluid flow passages are in the interlayer formed by the reverse side of the air guide groove plate and the reverse side of the hydrogen guide groove plate, and a common hole for air intake and a common hole for hydrogen gas are provided at the right end of the guide bipolar plate; The left end of the guide bipolar plate is provided with a common air outlet channel and a common hydrogen outlet channel; the air inlet channel hole is connected with the air guiding groove; the hydrogen inlet and outlet fluid holes are connected with the linear hydrogen guiding groove. The invention improves the uniformity of the temperature distribution of the pole plate; the structure can increase the proportion of the active area of ​​the pole plate and improve the power density of the pole plate. It also improves the structural strength and sealing performance of the electrode plate, thereby improving the reliability of the system.

Description

Technical field[0001]The present invention belongs to the technical field of fuel cells, and more particularly to a fuel cell fluid board having high power density high structural strength.Background technique[0002]Proton-exchange membrane fuel cells (PEMFC) is considered to be an ideal power supply suitable for human development and environmental requirements with their high efficiency, high-compared energy, low pollution, and other advantages. The bipolar plate (flow field) is an important part of the proton exchange membrane fuel cell, and its mass takes more than 60% of the battery. The streaming of flow field has a great impact on battery performance, operational efficiency, and manufacturing cost.[0003]Both sides of the bipolar plate have an important role in distributing reactive gas, collecting current, mechanical support, hydrothermal management, and separating yin and yang amphoteric reactivity. In fact, the design of the fuel cell stack is largely the design of the bipola...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/026H01M8/0263H01M8/0267
CPCH01M8/026H01M8/0263H01M8/0267Y02E60/50
Inventor 张泽坪王诚雷一杰孙连国
Owner TSINGHUA UNIV
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