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Air-cooled hydrogen fuel cell based on single metal polar plate and electric pile

A metal plate, fuel cell technology, used in fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of complicated bipolar plate manufacturing, improve the effective contact area, simplify the complexity, structure and System compact effect

Inactive Publication Date: 2020-04-21
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an air-cooled hydrogen fuel cell based on a single metal pole plate, which solves the problem of complex manufacturing of bipolar plates, achieves the beneficial effects of a compact fuel cell structure and improved battery power density

Method used

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  • Air-cooled hydrogen fuel cell based on single metal polar plate and electric pile
  • Air-cooled hydrogen fuel cell based on single metal polar plate and electric pile
  • Air-cooled hydrogen fuel cell based on single metal polar plate and electric pile

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Effect test

Embodiment 1

[0032] An air-cooled hydrogen fuel cell based on a single metal plate, such as Figure 1-Figure 4 As shown, it includes a metal pole plate 1 and a reaction flow channel. The metal pole plate 1 is a single-piece metal pole plate, and the single-piece metal pole plate is used as a separator for the reaction gas, which is used for collecting and transporting the reaction gas. Function; both sides of the metal pole plate 1 are flow spaces for air and hydrogen respectively; one side of the metal pole plate 1 is the cathode gas reaction flow channel 2 and the cooling medium flow channel, and the cathode gas reaction flow channel 2 and the cooling medium flow channel The medium flow channel is the same flow channel, which simplifies the structure of the fuel cell; the gas in the cooling medium device and the circulating air medium can not only provide the oxygen required for the reaction to the membrane electrode 4, but also can take the heat generated by the reaction out of the fuel ...

Embodiment 2

[0040] On the basis of Embodiment 1, there is also a stack, such as Figure 5 As shown, a single cell is included, and the single cell is the above-mentioned air-cooled hydrogen fuel cell based on a single metal plate.

[0041] The single cell also includes a membrane electrode 4, and the membrane electrode 4 is located between adjacent metal pole plates 1, and the metal pole plates 1 are stacked alternately, and after a plurality of metal pole plates 1 are stacked together , forming the inlet channel for hydrogen. The anode gas reaction channels 3 and the cathode gas reaction channels 2 are arranged alternately. The single cells are stacked together, and the widths of the hydrogen and oxygen sides are set differently to ensure that the two sides of the yellow membrane electrode are hydrogen and oxygen respectively, so that the reaction can proceed.

[0042] There are multiple single cells, and the multiple single cells are connected in series. The batteries are connected in ...

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Abstract

The invention provides an air-cooled hydrogen fuel cell based on a single metal polar plate. The fuel cell comprises a metal polar plate and a reaction flow channel, the metal polar plate is the single metal polar plate, one side of the metal polar plate is provided with a cathode gas reaction flow channel and a cooling medium flow channel, the cathode gas reaction flow channel and the cooling medium flow channel are the same flow channel, and the other side of the metal polar plate is provided with an anode gas reaction flow channel. The structure and the system of the fuel cell are more compact, power density of the cell is improved, the cathode reaction gas flow channel provides excessive reaction gases, oxygen needed by reaction is provided, heat generated by reaction of the fuel cellis cooled, the structure of the fuel cell is simplified, welding of bipolar plates is avoided, and complexity of the fuel cell is simplified. An electric pile comprises a single cell, and the single cell is the air-cooled hydrogen fuel cell based on the single metal polar plate.

Description

technical field [0001] The invention belongs to the technical field of batteries, in particular to an air-cooled hydrogen fuel cell and an electric stack based on a single metal pole plate. Background technique [0002] A fuel cell is an energy converter that directly converts the chemical energy of "fuel gas" into direct current electrical energy. The proton exchange membrane fuel cell includes membrane electrodes, oxygen flow channels, hydrogen flow channels and cooling medium flow channels. In terms of heat dissipation, commonly used cooling media include liquid media and gaseous media. The specific power of the fuel cell is one of the key parameters, and the compact design of the fuel cell structure, especially the single cell structure, is one of the directions to improve the specific power of the fuel cell. [0003] In addition, as the power density of fuel cells increases, the requirements for heat dissipation become higher and higher. At present, the actual workin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0258H01M8/026H01M8/0267H01M8/04014
CPCH01M8/0258H01M8/026H01M8/0267H01M8/04014Y02E60/50
Inventor 张永魏宇鸿张威肖彪
Owner GREE ELECTRIC APPLIANCES INC
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