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A novel fuel cell membrane electrode and its preparation method

A fuel cell membrane and electrode technology, which is applied in the direction of fuel cells, battery electrodes, circuits, etc., to achieve the effects of convenient quality monitoring, increased current density, and easy replication to production or laboratory environments

Active Publication Date: 2022-05-27
JIANGSU YAOYANG NEW ENERGY TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus the distribution of the catalyst on the proton membrane corresponds to no distinction between the channel and ridge regions of the plate

Method used

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  • A novel fuel cell membrane electrode and its preparation method
  • A novel fuel cell membrane electrode and its preparation method
  • A novel fuel cell membrane electrode and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The first slurry (Formula-1 slurry) is a platinum-containing catalyst slurry:

[0061] (1) 15.3g 50wt% Umicore platinum-carbon catalyst (Vulcan XC carbon black);

[0062] (2) 21.2g D2020 Nafion solution;

[0063] (3) 31.8g deionized water

[0064] (4) 39.0g isopropyl alcohol

[0065] (5) 0.5g glycerin

[0066] (6) 0.05g water-soluble white dye, model BP-8095.

[0067] The second slurry (Formula-2 slurry) is a non-platinum catalyst slurry:

[0068] (1) 15.3g carbon black, model: Vulcan XC;

[0069] (2) 21.2g Nafion solution, model D2020;

[0070] (3) 31.8g deionized water

[0071] (4) 39.0g isopropyl alcohol

[0072] (5) 0.5g glycerin

[0073] The first membrane electrode preparation process proposed by the present invention is as follows:

[0074](1) Slowly inject the above two slurries into the two ink cartridges of the inkjet printer with a syringe;

[0075] (2) Import the 2-D diagram of the plate design including the spine and the flow channel into the com...

Embodiment 2

[0081] The first slurry (Formula-1 slurry) is a platinum-containing catalyst slurry:

[0082] (1) 15.3g platinum carbon catalyst;

[0083] (2) 21.2g D2020 Nafion solution;

[0084] (3) 31.8g deionized water

[0085] (4) 39.0g isopropyl alcohol

[0086] (5) 0.5g glycerin

[0087] (6) 0.05g BP-8095 water-soluble white dye

[0088] The platinum-carbon catalyst includes platinum and carbon black, and the mass content of the platinum is 50%. The platinum is branded Umicore and the carbon black is Vulcan XC.

[0089] The second slurry (Formula-2 slurry) is a non-platinum catalyst slurry:

[0090] (1) 15.3g Vulcan XC carbon black;

[0091] (2) 21.2g D2020 Nafion solution;

[0092] (3) 31.8g deionized water

[0093] (4) 39.0g isopropyl alcohol

[0094] (5) 0.5g glycerin

[0095] (1) The formula-2 slurry is uniformly applied to the cathode and anode sides of the proton exchange membrane by spraying, coating or printing, and then dried and hot-pressed to form CCM.

[0096] (...

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Abstract

The present invention relates to a novel fuel cell membrane electrode preparation method, which comprises the following steps: first slurry is built in the first ink box of the printer, and second slurry is built in the second ink box; according to the ridge and flow on the battery membrane electrode to be printed Input the 2D map to be printed into the printer according to the distribution of channels, and the 2D map includes a ridge area and a channel area; place the proton exchange membrane in the printer to print electrodes according to the 2D map, and the first The first slurry in the ink cartridge is coated on the runner area, and the second slurry in the second ink cartridge is coated on the ridge area; the first slurry includes platinum carbon catalyst, Nafion solution, Deionized water, isopropanol and glycerin, the second slurry includes carbon black, Nafion solution, deionized water, isopropanol and glycerin. In the preparation method, the conductive paste containing the noble metal platinum catalyst is printed on the flow channel area according to the distribution of the ridge-flow channel of the pole plate, and the conductive paste containing no platinum catalyst is printed on the ridge area.

Description

technical field [0001] The invention relates to an electrode and a preparation method, in particular to a novel fuel cell membrane electrode and a preparation method thereof. Background technique [0002] The key components of proton exchange membrane fuel cell stack are bipolar plates and membrane electrodes, which account for about 80% of the material cost of the entire stack. At the same time, the coordination between the bipolar plate and the membrane electrode directly affects the performance of the stack. Therefore, how to reasonably match the two has a profound impact on the cost performance of the stack product. [0003] A set of bipolar plates contains cathode and anode faces. The plate reaction zone is composed of complex and precise concave flow channels and raised ridges. From the cross section of the plate, it can be observed that the flow channels and ridges alternate regularly. In the production of existing CCM, the platinum catalyst slurry is uniformly tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88H01M8/1004
CPCH01M4/8832H01M4/8896H01M4/8882H01M8/1004Y02E60/50Y02P70/50
Inventor 陈真
Owner JIANGSU YAOYANG NEW ENERGY TECH
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