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Novel fuel cell film electrode and preparation method thereof

A fuel cell membrane and electrode technology, applied to fuel cells, battery electrodes, circuits, etc., to achieve the effects of convenient quality monitoring, increased current density, and less fixed investment

Active Publication Date: 2021-02-26
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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  • Novel fuel cell film electrode and preparation method thereof
  • Novel fuel cell film electrode and preparation method thereof
  • Novel fuel cell film electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The first slurry (Recipe-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 isopropanol

[0065] (5) 0.5g glycerin

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

[0067] The second slurry (Recipe-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 isopropanol

[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 drawing of the plate design including ridges and flow channels into the computer software conne...

Embodiment 2

[0081] The first slurry (Recipe-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 isopropanol

[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%. Platinum is branded Umicore and carbon black is branded Vulcan XC.

[0089] The second slurry (Recipe-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 isopropanol

[0094] (5) 0.5g glycerin

[0095] (1) Apply formulation-2 slurry evenly to the cathode and anode sides of the proton exchange membrane by spraying, coating or printing, then dry and heat press to form CCM.

[0096] (2) Then the formulation-1 slu...

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Abstract

The invention relates to a preparation method of a novel fuel cell film electrode, which comprises the following steps: first slurry is arranged in a first ink box of a printer, and second slurry is arranged in a second ink box; a to-be-printed 2D image is put into the printer according to the distribution of the ridge and the flow channel on a to-be-printed battery film electrode, wherein the 2Dimage comprises a ridge region and a flow channel region; a proton exchange film is placed in the printer to print an electrode according to the 2D image, the flow channel region is coated with the first slurry in the first ink box, and the ridge region is coated with the second slurry in the second ink box; and the first slurry comprises a platinum-carbon catalyst, a Nafion solution, deionized water, isopropanol and glycerol, and the second slurry comprises carbon black, a Nafion solution, deionized water, isopropanol and glycerol. The preparation method comprises the step of printing conductive paste containingnoble metal platinumcatalyst in a flow channel region according to the distribution of ridge-flow channel of a polar plate, and printing conductive paste without a platinum catalyst in a ridge region.

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 a 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 cooperation 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 has a cathode and an anode side. 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 are regularly and alternately distributed. In the production of existing CCM, the platinum catalyst ...

Claims

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Application Information

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Patent Type & Authority Applications(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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