Air-cooled proton exchange membrane fuel cell bipolar plate
A proton exchange membrane, fuel cell technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of increasing air mass transfer resistance, affecting battery performance, complex combination structure, etc., to reduce mass transfer resistance and low processing costs. 、Reliable sealing effect
Active Publication Date: 2011-04-13
江西德合医疗器械有限公司
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Problems solved by technology
[0006] However, the above-mentioned structure needs to make the cathode plate and the anode plate separately, which will inevitably increase the processing cost and material cost, and also increase the man-hours of fuel cell assembly; complex, thus further increasing the processing difficulty and manufacturing cost; again, the structure of the air parallel straight channel and the matrix through hole of the cathode plate makes the air introduced by the air parallel straight channel cannot directly contact with the membrane electrode of the fuel cell, but must pass through the matrix through hole. The redistribution of pores diffuses to the membrane electrode, which greatly increases the mass transfer resistance of the air and affects the performance of the battery
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[0016] Specific implementation method: see figure 1 , figure 2 , image 3 , the four corners of the bipolar plate 1 are provided with positioning holes 2, one side of the bipolar plate 1 is the cathode surface 3, the other side is the anode surface 4, the central part of the cathode surface 3 is provided with air parallel straights 5, the cathode surface 3 The two sides of the two sides are concave parts 6, and the concave parts 6 on both sides are respectively provided with air intake straight grooves 7 communicating with the air parallel straights 5, and the upper cover of the concave parts 6 on both sides is equipped with cathode inserts 9, and the cathode inserts 9 Cathode sealing grooves 8 are respectively opened, and through holes 10 are opened on the other two sides of the cathode electrode surface 3, and cathode sealing grooves 11 are opened around the through holes 10, and the cathode sealing grooves 11 around the through holes 10 and the cathode of the cathode inse...
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The invention provides an air-cooled proton exchange membrane fuel cell bipolar plate, which has reliable air tightness, low material and processing costs and low assembly difficulty of a battery and further ensures the performance of the battery. One side of the bipolar plate is a cathode pole face, and the other side of the bipolar plate is an anode pole face. The bipolar plate is characterized in that: the cathode pole face is provided with a cathode sealing groove cavity, the cathode sealing groove cavity encircles an air parallel straight passage, the air parallel straight passage is communicated with external air through air inlet straight grooves on two sides, and the air inlet straight grooves are positioned on the inner side of the thickness direction of the cathode sealing groove cavity; and two ends of the anode pole face are provided with through holes, the anode pole face is provided with a hydrogen flow passage, the anode pole face is provided with an anode sealing groove cavity, the anode sealing groove cavity encircles the two through holes and the hydrogen flow passage respectively, the inner sides of the two through holes are provided with a conducting groove for communicating the hydrogen flow passage respectively, and the conducting grooves are positioned on the inner side of the thickness direction of the anode sealing groove cavity.
Description
technical field [0001] The invention relates to the technical field of air-cooled proton exchange membrane fuel cell structure, in particular to a bipolar plate of air-cooled proton exchange membrane fuel cell. Background technique [0002] The proton exchange membrane fuel cell is a power generation device that uses hydrogen as the fuel and oxygen in the air as the oxidant. Due to the electrochemical reaction mechanism of the fuel cell, it is not limited by the efficiency of the Carroll cycle. Therefore, the proton exchange membrane fuel cell The battery has the characteristics of high efficiency and environmental friendliness. [0003] The main feature of the air-cooled proton exchange membrane fuel cell is that the fan supplies air to the fuel cell and discharges the heat inside the fuel cell at the same time. The above-mentioned characteristics of the air-cooled proton exchange membrane fuel cell simplify the structure of the system, so it is especially suitable for ...
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IPC IPC(8): H01M4/86
CPCY02E60/50
Inventor 胡鸣若
Owner 江西德合医疗器械有限公司