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Air self-suction type direct alcohols fuel battery pole plate and its application

A fuel cell pole plate and battery pole plate technology, which is applied in the direction of fuel cells, fuel cell parts, battery electrodes, etc., can solve the problems of inapplicability of direct alcohol fuel cells, unfavorable series connection of multiple batteries, unfavorable integration of battery packs, etc. Problems, to achieve the effect of convenient separation and series connection, improve integration, improve service life of battery and output power

Inactive Publication Date: 2008-08-20
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The patent [US 6,458,479 B1] introduces a structure of air self-priming direct methanol fuel cell, which uses a single polar plate, but its current collecting part is separated from the polar plate, which is not conducive to the integration of battery packs, and is not conducive to multiple batteries series of
[0007] The literature [Journal of Power Sources 118 (2003) 162-171] introduces a copper-clad circuit board for self-priming proton exchange membrane fuel cells, and copper is plated, and there is no attenuation after 1500 hours of life testing. However, this kind of circuit board is not suitable for direct alcohol fuel cells, because even if the copper layer has been treated for a long time in an acidic liquid environment, the copper may be corroded and peeled off due to the lack of dense plating, and copper is harmful to the battery. The attenuation of performance has a great impact

Method used

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  • Air self-suction type direct alcohols fuel battery pole plate and its application
  • Air self-suction type direct alcohols fuel battery pole plate and its application
  • Air self-suction type direct alcohols fuel battery pole plate and its application

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Embodiment 1

[0041] see figure 2 , the present embodiment adopts the type 316L stainless steel sheet to be composited on the glass fiber resin by hot pressing process to form a composite circuit board; a titanium nitride coating is coated on the stainless steel sheet to form a structural schematic diagram of a titanium nitride pole plate, 6 is Screw holes, 7 are connecting pins, 8 are dividing lines, and 9 are feeding holes arrayed on the pole plate, and its aperture is 3 mm. The thickness of the stainless steel is 0.4 mm, the thickness of the glass fiber plate is 1.5 mm, the effective area of ​​a single battery is 2 cm × 3 cm, the coating is titanium nitride, and its thickness is 2 microns.

[0042] The specific implementation method of titanium nitride plated plate is as follows:

[0043] 1. According to the output power requirements of the battery pack, calculate the area size of a single battery and the total number of batteries. The output power of the battery in this embodiment is...

Embodiment 2

[0052] Please refer to Fig. 3, which shows a schematic diagram of the structure of a gold-plated pole plate, 6 is a screw hole, 7 is a connecting pin, 8 is a dividing line, and 9 is an array of feeding holes on the pole plate, and the hole diameter is 3 mm. The thickness of the stainless steel is 0.3 mm, the thickness of the glass fiber board is 1.5 mm, the effective area of ​​a single battery is 3 cm × 3 cm, the plating layer is gold, and its thickness is 2 microns.

[0053] The specific implementation methods of gold-plated plates are as follows:

[0054]1. According to the output power requirements of the battery pack, calculate the area size of a single battery and the total number of batteries. The output power of the battery in this embodiment is 1.5 watts, so the area of ​​the single battery is designed to be 3cm×3cm, and the number of battery cells is 8.

[0055] 2. According to the area of ​​the single battery and the total number of batteries, cut the stainless stee...

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Abstract

The invention relates to a polar plate of air self-adsorption fuel battery. Wherein, it is metal and non-metal composite; the surface of metal is treated, plated with platinum, plated with gold or plated titanium nitride, as the polar plate of said air self-adsorption fuel battery. The invention can support the installment of battery, improve the integrated degree of battery group, reduce the corrosion of polar plate, reduce the internal resistance, and improve the service life. The invention can be used in quantum exchange film fuel battery, especially the room-temperature air self-adsorption quantum exchange film fuel battery with hydrogen or methyl inlet.

Description

technical field [0001] The invention relates to a fuel cell, in particular to an air self-priming direct alcohol fuel cell pole plate. [0002] The present invention also relates to the application of the above-mentioned pole plate. Background technique [0003] Direct Alcohol Fuel Cell is an electrochemical reaction device that directly converts the chemical energy of fuel (methanol, ethanol and other liquid fuels) and oxidant into electrical energy. It is not limited by the Carnot heat engine cycle, has high energy conversion efficiency, simple structure, safety and reliability, and less environmental pollution. The battery has broad application prospects in the fields of small portable mobile power sources and sensor devices. [0004] The structure of direct alcohol fuel cell (DAFC) is as follows: figure 1 As shown, the two sides of the proton exchange membrane 1 are the cathode catalyst layer 2 and the anode catalyst layer 2' respectively, the outside of the cathode an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86H01M8/02H01M8/0206H01M8/0228
CPCY02E60/50
Inventor 孙公权赵锋良陈利康赵钢秦兵杨少华辛勤
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI