Heat radiation bipolar plate of fuel battery

A technology of fuel cells and bipolar plates, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of less applicable environments, inconsistencies, and high air requirements, and achieve the effects of flexible shape design, improved performance and life, and flexible operation

Active Publication Date: 2014-07-02
QINGDAO HANHE HYDROGEN ENERGY EQUIP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this type of technology is that the flow rate required for cooling is not consistent with the flow rate required for oxidant, and the oxidant is directly supplied by an open flow channel, which has extremely high requirements for air and is rarely applicable to the environment.

Method used

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  • Heat radiation bipolar plate of fuel battery
  • Heat radiation bipolar plate of fuel battery
  • Heat radiation bipolar plate of fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like Figure 4 As shown, an air-cooled integrated bipolar plate for a fuel cell includes an anode plate 5 and a cathode plate 6. The cathode plate and the anode plate are only provided with fuel inlet and outlet fluid holes and oxidant inlet and outlet fluid holes, without cooling fluid inlet and outlet holes. A heat dissipation section is arranged between the anode plate 5 and the cathode plate 6, and the heat dissipation section is composed of three layers of heat dissipation plates 1-1, 1-2 and 1-3. The heat sink 1 is stamped from an aluminum alloy plate, and is provided with a parallel straight groove 2, that is, a trapezoidal parallel groove with the same upper and lower cross-sections is punched on both sides of the aluminum alloy plate, such as figure 1 shown. The cathode plate 6 is provided with fuel fluid channels, and the anode plate 5 is provided with oxidant fluid channels.

[0033] The cathode plate 6, the heat dissipation section and the anode plate 5 ar...

Embodiment 2

[0037] like figure 2 As shown, an air-cooled integrated bipolar plate for a fuel cell includes an anode plate 5 and a cathode plate 6, and a heat dissipation section is arranged between the anode plate 5 and the cathode plate 6, and the heat dissipation section is superimposed by several layers of heat dissipation plates made. The radiating plate is provided with a single row of staggered parallel straight grooves 2, and the radiating plate 1 is stamped from an aluminum alloy plate, that is, the upper and lower sides of the aluminum alloy plate are staggered and stamped with parallel grooves with trapezoidal cross-sections. The cathode plate 6 is provided with fuel fluid channels, and the anode plate 5 is provided with oxidant fluid channels.

[0038]The cathode plate 6, the heat dissipation section and the anode plate 5 are integrally formed by injection molding to form a bipolar plate. The two ends of the bipolar plate are provided with the fuel inlet and outlet flow chann...

Embodiment 3

[0044] like figure 1 As shown, the cooling plate 1 is provided with fluid channels. The fluid channel is punched from an aluminum alloy plate, that is, a trapezoidal parallel groove with the same upper and lower positions is punched on both sides of the aluminum alloy plate, and a layer of upper heat dissipation plate is arranged between the cathode plate and the anode plate. The rest are the same as in Example 2.

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Abstract

The invention relates to a heat radiation bipolar plate of a fuel battery. The heat radiation bipolar plate comprises a cathode plate and an anode plate. The bipolar plate is characterized in that a heat radiation section is arranged between the cathode plate and the anode plate; the heat radiation section consists of a plurality layers of heat radiation plates which are overlapped in sequence; a plurality of parallel straight grooves are formed in the heat radiation plates; after the plurality layers of heat radiation plates are sequentially overlapped, fluid channels are formed by the parallel straight grooves between every two adjacent plates; an end hole I and an end hole II are formed in one ends of the parallel straight grooves which form the first layer of fluid channels and the last layer of fluid channels in the heat radiation section; the end hole I and the end hole II are exposed in air; the end hole I and the end hole II are respectively formed in two ends of the heat radiation section; two ends of the other parallel straight grooves in the heat radiation section are sealed. Compared with the prior art, the bipolar plate has the advantages that the heat radiation effect is good, the reliability is high, the mounting is convenient, heat radiation fins can be randomly combined, and the like.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a heat dissipation bipolar plate of a fuel cell. Background technique [0002] A fuel cell is a device that converts the chemical energy of hydrogen and oxygen directly into electrical energy through electrode reactions. Fuel cells are typically constructed from multiple cells, each cell comprising two electrodes (anode and cathode) separated by an electrolyte element and assembled in series with each other to form a fuel cell stack. By supplying each electrode with the appropriate reactants, ie fuel to one electrode and oxidant to the other, an electrochemical reaction is effected, creating a potential difference between the electrodes and thus generating electrical energy. [0003] To supply each electrode with reactants, specific interface elements commonly referred to as "bipolar plates" and placed on both sides of each individual cell are used. These bipolar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86
CPCY02E60/50H01M4/8631
Inventor 高勇
Owner QINGDAO HANHE HYDROGEN ENERGY EQUIP TECH CO LTD
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