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

Active Publication Date: 2018-01-19
上海轩玳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A fuel cell consists of an end plate, a number of membrane electrodes, and a number of bipolar plates to form a basic fuel cell stack. The membrane electrodes and bipolar plates are connected in series by physical contact wit

Method used

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  • Fuel cell structure and series connection method
  • Fuel cell structure and series connection method

Examples

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Example Embodiment

[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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Abstract

The invention relates to a proton exchange membrane fuel cell structure and a series connection method, belongs to the field of fuel cells and provides a fuel cell structure. The fuel cell structure comprises a front end plate, a membrane electrode, a bipolar plate, a seal ring, a heat tube and a rear end plate, wherein the heat tube is used for balancing the temperature of the cell, transferringheat and carrying out heat management to transfer the heat to a device of using the heat; and the heat tube is in interference fit with metal flow field plates in the front end plate and the rear endplate and the metal flow field plate of a substrate of the bipolar plate and insulating treatment is carried out at the contact part. The invention further provides a solid polymer lithium-ion batterypack and a series connection method of the fuel cell. The manufacturing process of the fuel cell is simplified, power output of a fuel cell system is improved and complicated cooling measures are notneeded.

Description

technical field [0001] The invention relates to a proton exchange membrane fuel cell structure and a series connection method in a fuel cell monomer, belonging to the field of fuel cells. Background technique [0002] In recent years, fuel cells have attracted attention as a new type of power source. The most representative hydrogen-oxygen fuel cell directly outputs electricity from the electrochemical reaction of hydrogen-oxygen air, and the discharge product is water. Therefore, the fuel cell is an efficient and green power generation device. With the development of new energy sources such as wind energy, solar energy and electrochemical energy storage technology, the means of obtaining hydrogen are diversified, and convenience and low cost become possible. Unlike secondary batteries, it does not need to be charged for a long time. Fuel cell vehicles are the general trend to replace traditional internal combustion engine vehicles that are inefficient and consume fossil en...

Claims

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Application Information

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IPC IPC(8): H01M8/04007H01M8/0228H01M8/1004H01M8/1006
CPCY02E60/50Y02P70/50
Inventor 娄豫皖和子晴
Owner 上海轩玳科技有限公司
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