Fuel cell structure and series connection method
A fuel cell and battery technology, applied in fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of changing contact resistance and affecting the power output of the fuel cell system, so as to improve the power output and simplify the manufacturing process. Effect
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[0016] Example 1
[0017] Figure 1 is a schematic diagram of the structure of a fuel cell of the present invention, in which Figure 1A Is a schematic front view of a fuel cell according to an embodiment of the present invention, Figure 1B Is a schematic side view (cross section) of a fuel cell according to an embodiment of the present invention, Figure 1C It is a schematic back view of a fuel cell according to an embodiment of the present invention. Figure 2 is a schematic structural diagram of a fuel cell of the present invention, in which Figure 2A Is a schematic diagram of the welding place of the fuel cell of an embodiment of the present invention, Figure 2B Is a schematic diagram of the structure of the membrane electrode of the fuel cell of an embodiment of the present invention, Figure 2C It is a schematic diagram of a bipolar plate of a fuel cell according to an embodiment of the present invention. In FIG. 2, A indicates a welding place, B indicates a sealing groove, ...
Example Embodiment
[0021] Example 2
[0022] image 3 It is a schematic structural diagram of a fuel cell according to another embodiment of the present invention. in image 3 Among them, C represents the positive electrode or negative electrode welding place, D represents the negative electrode or positive electrode welding place, and E represents the heat dissipation hole tightly assembled with the heat pipe 5. Such as image 3 The structural features of the fuel cell are the same as those of the first embodiment. It is characterized in that the inner side of the bipolar plate 3, the membrane electrode 2, and the end plates 1, 6 are not flat in shape, but designed as a folded surface to increase the reaction area. , Arc-shaped wave surface.
Example Embodiment
[0023] Example 3
[0024] Figure 4 is a schematic structural diagram of a fuel cell according to another embodiment of the present invention, in which Figure 4A Is a schematic front view of a fuel cell according to another embodiment of the present invention, Figure 4B It is a schematic side view (cross-section) of a fuel cell according to another embodiment of the present invention. In Figure 4, C represents the positive electrode welding site, D represents the negative electrode welding site, F represents the process hole on the bipolar plate 3, G represents the process hole on the negative electrode 2-1, and H represents the process on the proton exchange membrane 2-2 hole. As shown in Figure 4, the third embodiment of the present invention is characterized in that the structure of the membrane electrode 2 is connected to the 2-3-2 and 2-1-2 lead parts of the positive and negative current collectors and the corresponding bipolar plate 3 The connected part is different from...
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