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Fuel cells with integrated cathode and anode bipolar plates

A fuel cell and bipolar plate technology, applied in the direction of fuel cells, fuel cell manufacturing, fuel cell components, etc., can solve the problems of complex structure, low power generation efficiency, large contact internal resistance, etc.

Active Publication Date: 2015-10-28
顺风恒劲氢能源发展(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bipolar plate structure described in the above-mentioned prior art has a relatively complicated structure because the anode plate and the cathode plate are independently arranged; there is a large contact internal resistance between the anode plate and the adjacent cathode plate, resulting in low power generation efficiency; in addition , the anode plate and the cathode plate need to be independently manufactured and assembled separately, the processing cost is high, and the production efficiency is low

Method used

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  • Fuel cells with integrated cathode and anode bipolar plates
  • Fuel cells with integrated cathode and anode bipolar plates
  • Fuel cells with integrated cathode and anode bipolar plates

Examples

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Embodiment 1

[0013] Such as Figure 1 to Figure 3 As shown, this embodiment provides a fuel cell with an integrated cathode and anode bipolar plates, including alternately arranged bipolar plates and a membrane electrode assembly 200; the bipolar plate includes an electrochemical reaction part and a non-electrochemical reaction part 210; characterized in that: the non-electrochemical reaction part is an integrated frame, and the electrochemical reaction part 210 is nested in the non-electrochemical reaction part frame. In this way, the non-electrochemical reaction part 210 of an anode plate and the non-electrochemical reaction part 210 of a cathode plate in two adjacent battery cells in the prior art are improved into an integral structure, which not only makes the internal structure of the fuel cell more It is compact and helps to simplify the manufacturing process. At the same time, the two-machine board of this one-piece structure can reduce the contact internal resistance between the s...

Embodiment 2

[0020] Such as Figure 1 to Figure 3 As shown, the present invention also provides another embodiment of the fuel cell with integrated cathode and anode bipolar plates, the fuel cell includes alternately arranged bipolar plates and membrane electrode assemblies 200, and the bipolar plates include electric The chemical reaction part and the non-electrochemical reaction part 210, the structure of the non-electrochemical reaction part 210 is consistent with the non-electrochemical reaction part 210 described in the above-mentioned embodiment one, but its electrochemical reaction part is made of conductive material The integrated structure combines the anode electrochemical reaction part 2072 and the cathode electrochemical reaction part 2071 described in the above-mentioned embodiment 1 into one, and simultaneously has the anode electrochemical reaction part 2072 and the cathode electrochemical reaction part 2072 described in the above-mentioned embodiment 1 The function of the c...

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Abstract

Disclosed is a fuel cell with an integrated cathode and anode bipolar plate, comprising bipolar plates and membrane electrodes alternatively arranged; the bipolar plate comprises an electrochemical reaction part and a non-electrochemical reaction part; the non-electrochemical reaction part is a monolithic frame, and the electrochemical reaction part is nested in the non-electrochemical reaction part. With an integrated cathode-anode bipolar plate and a simpler structure, the fuel cell of the present invention facilitates the manufacturing process of the fuel cell, thus improving production efficiency and reducing manufacturing costs; owing to the integrated cathode and anode design, the present invention reduces the contact impedance of the fuel cell and the internal consumption of outputted power, thus greatly improving power generating efficiency.

Description

technical field [0001] The invention relates to the field of new energy, in particular to a bipolar plate of a fuel cell. Background technique [0002] Fuel cell is a promising new power source. It generally uses hydrogen, carbon, methanol, borohydride, coal gas or natural gas as fuel, uses hydrogen as the negative electrode, and uses oxygen in the air as the positive electrode. And the general battery The main difference is that the active material of the general battery is placed in advance, so the battery capacity depends on the amount of active material stored; while the active material (fuel and oxidant) of the fuel cell is continuously input while reacting, so , this type of battery is actually just an energy conversion device. This type of battery has the advantages of high conversion efficiency, large capacity, high specific energy, wide power range, and no charging. It has broad development prospects in spaceships, submarines, military, TV transfer stations, lighth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86
CPCH01M8/0202H01M8/0273Y02E60/50Y02P70/56Y02P70/50
Inventor 高勇
Owner 顺风恒劲氢能源发展(上海)有限公司
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