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A fuel cell cooling bipolar plate

A fuel cell, bipolar plate technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of high air requirements, less applicable environment, inconsistency, etc., to achieve flexible operation, flexible shape design, and improved performance and life. Effect

Active Publication Date: 2018-09-25
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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  • A fuel cell cooling bipolar plate
  • A fuel cell cooling bipolar plate
  • A fuel cell cooling bipolar plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as 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, and no cooling fluid inlet and outlet holes are provided. A heat dissipation section is provided 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, 1-3. The heat dissipation plate 1 is stamped from an aluminum alloy plate, and parallel straight grooves 2 are arranged on it, that is, parallel grooves with the same upper and lower positions are punched on both sides of the aluminum alloy plate, and the cross-section is trapezoidal, such as figure 1 shown. The cathode plate 6 is provided with a fuel fluid channel, and the anode plate 5 is provided with an oxidant fluid channel.

[0033] The cathode plate 6, the...

Embodiment 2

[0037] Such as figure 2 As shown, an air-cooled integrated bipolar plate for a fuel cell includes an anode plate 5 and a cathode plate 6, a heat dissipation section is provided 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 heat dissipation plate is provided with a single row of parallel straight grooves 2 with staggered openings. The heat dissipation plate 1 is stamped from an aluminum alloy plate, that is, parallel grooves with trapezoidal cross-section are stamped up and down on both sides of the aluminum alloy plate. The cathode plate 6 is provided with a fuel fluid channel, and the anode plate 5 is provided with an oxidant fluid channel.

[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 a fuel inlet and outlet main f...

Embodiment 3

[0044] Such as figure 1 As shown, fluid passages are provided on the cooling plate 1 . The fluid channel is stamped from the aluminum alloy plate, that is, parallel grooves with trapezoidal cross-section at the same upper and lower positions are stamped 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. All the other are with embodiment 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, in particular to a heat dissipation bipolar plate of a fuel cell. Background technique [0002] A fuel cell is a device that directly converts the chemical energy of hydrogen and oxygen into electrical energy through an electrode reaction. A fuel cell is generally constructed of a plurality of 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. The electrochemical reaction is achieved by supplying the appropriate reactants to each electrode, ie fuel to one electrode and oxidant to the other, creating a potential difference between the electrodes and thereby generating electrical energy. [0003] In order to supply each electrode with reactants, specific interface elements commonly referred to as "bipolar plates" and arranged on both sides of each individual cell are used. These b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86
CPCH01M4/8631Y02E60/50
Inventor 高勇
Owner QINGDAO HANHE HYDROGEN ENERGY EQUIP TECH CO LTD
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