Air-cooled proton exchange membrane fuel cell metal bipolar plate and fuel cell thereof

A proton exchange membrane and metal bipolar plate technology, applied in fuel cells, circuits, electrical components, etc., can solve the problems of reducing the efficiency of fuel cells, reducing the reaction rate of fuel gas and oxidant, etc., to increase the contact time and flow Effect of distance, slowing flow speed

Active Publication Date: 2021-11-02
嘉寓氢能源科技(辽宁)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the fuel gas and oxidant gas stay in the linear flow field for a period of time that is not enough for the catalysts on t

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  • Air-cooled proton exchange membrane fuel cell metal bipolar plate and fuel cell thereof
  • Air-cooled proton exchange membrane fuel cell metal bipolar plate and fuel cell thereof
  • Air-cooled proton exchange membrane fuel cell metal bipolar plate and fuel cell thereof

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Embodiment Construction

[0035] The following is attached Figure 1-3 The application is described in further detail.

[0036] The embodiment of the present application discloses a metal bipolar plate of an air-cooled proton exchange membrane fuel cell. refer to figure 1 and figure 2 , the metal bipolar plate includes a first metal plate 1 and a second metal plate 2, and a gas inlet 3, an oxidant inlet 4 and a coolant inlet 5 are arranged on the upper side of the first metal plate 1 and the second metal plate 2. A gas outlet 6 , an oxidant outlet 7 and a coolant outlet 8 are provided on the lower sides of the first metal plate 1 and the second metal plate 2 . The connection between the gas inlet 3 and the gas outlet 6, the connection between the oxidant inlet 4 and the oxidant outlet 7, and the connection between the coolant inlet 5 and the coolant outlet 8 are parallel. In this application, the fuel gas is hydrogen , the oxidant gas is air, the oxygen and hydrogen in the air react under the cata...

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Abstract

The invention relates to an air-cooled proton exchange membrane fuel cell metal bipolar plate and a fuel cell thereof. The bipolar plate comprises a first metal plate and a second metal plate. The first metal plate and the second metal plate are each provided with a first metal frame, a fuel gas inlet and an oxidizing agent inlet which are formed in one side of the first metal frame, and a fuel gas outlet and an oxidizing agent outlet which are formed in the other side of the first metal frame, and the fuel gas inlet and the fuel gas outlet in the first metal plate are communicated with the first metal frame. The oxidizing agent inlet and the oxidizing agent outlet in the second metal plate communicate with the first metal frame, a gas flow channel is formed in the first metal frame and comprises first buffer flow channels arranged at the head end and the tail end of the gas flow channel correspondingly, and each first buffer flow channel comprises a plurality of flow dividing columns distributed at equal intervals; and a flow dividing groove is formed between every two adjacent flow dividing columns, and the end, away from the flow dividing columns, of each flow dividing groove inclines in the direction away from the first metal frame. The effect of improving the reaction rate of the fuel cell is possessed.

Description

technical field [0001] The application relates to the field of fuel cells, in particular to a metal bipolar plate of an air-cooled proton exchange membrane fuel cell and a fuel cell thereof. Background technique [0002] A fuel cell is a chemical device that converts the chemical energy of fuel into electrical energy. The main structural components of a fuel cell include a membrane electrode and a bipolar plate. The bipolar plate is an important part of the battery and plays the role of collecting current, gas distribution, water management, and heat management in the fuel cell. Metal bipolar plates can be used for fuel cell bipolar plates. Metal materials have the advantages of electrical conductivity, good thermal conductivity, high mechanical strength, easy thinning, and easy processing, and have become one of the materials for fuel cell bipolar plates. [0003] At present, the existing metal bipolar plates use stamping to process groove structures on titanium metal plat...

Claims

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Application Information

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IPC IPC(8): H01M8/0258H01M8/0263H01M8/0267H01M8/04089
CPCH01M8/0258H01M8/0263H01M8/0267H01M8/04089Y02E60/50
Inventor 任杰施忠贵鲍连福马冶徐小龙
Owner 嘉寓氢能源科技(辽宁)有限公司
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