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Hydrogen fuel cell polar plate and manufacturing method thereof

A fuel cell electrode plate, flake graphite technology, applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems of limited development and high application costs, and achieve the effect of improving the pass rate and small resistance

Inactive Publication Date: 2015-07-08
JS POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the high cost of promotion and application of hydrogen fuel cell technology, its development is limited to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] (1) Take 33kg of flake graphite with a particle size of 500 mesh, 7kg of calcium carbonate powder with a particle size of 500 mesh, 7kg of bisphenol A epoxy resin, 6kg of magnesium carbonate powder, and 5kg of methyl acrylate; (2) each Stir and mix the ingredients; (3) After mixing, put it into the plate pressing mold, set the temperature at 165°C, close the mold for pressing, the pressure is 200Mpa, and the pressing time is 4h; (4) Cool to room temperature after pressing, open mold to obtain hydrogen fuel cell plates.

Embodiment 2

[0010] (1) Take 35kg of flake graphite with a particle size of 550 mesh, 5kg of calcium carbonate powder with a particle size of 450 mesh, 9kg of bisphenol A epoxy resin, 4kg of magnesium carbonate powder, and 4kg of methyl acrylate; (2) each Stir and mix the ingredients; (3) After mixing, put it into the plate pressing mold, set the temperature at 175°C, close the mold for pressing, the pressure is 190Mpa, and the pressing time is 2h; (4) Cool to room temperature after pressing, open mold to obtain hydrogen fuel cell plates.

Embodiment 3

[0012] (1) Take 34kg of flake graphite with a particle size of 600 mesh, 6kg of calcium carbonate powder with a particle size of 400 mesh, 8kg of bisphenol A epoxy resin, 5kg of magnesium carbonate powder, and 3kg of methyl acrylate; (2) each Stir and mix the ingredients; (3) After mixing, put it into the plate pressing mold, set the temperature at 185°C, close the mold for pressing, the pressure is 180Mpa, and the pressing time is 3h; (4) Cool to room temperature after pressing, open mold to obtain hydrogen fuel cell plates.

[0013] After the hydrogen fuel cell pole plate was prepared, the resistance of the pole plate was measured. The resistance of the pole plate in Example 1 was 0.41 ohms, the resistance of the pole plate in Example 2 was 0.35 ohms, and the resistance of the pole plate in Example 3 was 0.41 ohms. 0.46 ohms, their resistance is small, and can be used in the plate application of hydrogen fuel cells.

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PUM

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Abstract

The invention relates to a hydrogen fuel cell polar plate and a manufacturing method thereof. The cell polar plate consists of the following components in parts by weight: 33-35 parts of crystalline flake graphite, 5-7 parts of calcium carbonate powder, 7-9 parts of bisphenol A type epoxy resin, 4-6 parts of magnesium carbonate and 3-5 parts of methyl acrylate. The components are mixed and pressed under high-temperature condition so as to prepare the hydrogen fuel cell polar plate, and under the condition that the cost is effectively lowered, the resistance of the polar plate is 0.35-0.46 Ohm, and the hydrogen fuel cell polar plate can be used in a hydrogen fuel cell.

Description

technical field [0001] The invention relates to a pole plate and a preparation method thereof, in particular to a hydrogen fuel cell pole plate and a preparation method thereof. Background technique [0002] Hydrogen fuel cell technology is a clean and efficient energy technology. The energy conversion rate of hydrogen fuel cells is very high, which can reach 70% to 80%, which is higher than that of ordinary gasoline or diesel engines. At present, due to the high cost of promotion and application of hydrogen fuel cell technology, its development is limited to a certain extent. Among them, the cost of the battery plate occupies a very large proportion in the total cost of the battery. If the cost of the battery plate can be effectively reduced, and the resistance of the plate can be effectively reduced, the hydrogen fuel can be effectively reduced. Battery costs and improving the utilization of hydrogen fuel cells. Contents of the invention [0003] Technical problem to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/96H01M4/88
CPCH01M4/8875H01M4/96Y02E60/50
Inventor 王纪忠王靖朴廷泰
Owner JS POWER