Anode moisturizing structure and passive direct methanol fuel cell using it
A methanol fuel cell, passive technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of short life, DMFC structure can not continue to work stably, etc., to achieve the reduction of internal resistance, transmembrane permeation rate reduction, discharge voltage and The effect of improving discharge time
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Embodiment 1
[0049] This example mainly compares the performance improvement of the moisturizing structure formed by the combination of alcohol-permeable water-repellent film and water-permeable alcohol-repellent film after it is applied to the battery, including the following steps:
[0050] 1. As a blank control group, press figure 1 As shown, a single PDMS-PSF membrane is used instead of a double-layer membrane structure to be clamped between the methanol storage tank and the anode collector plate, which is designated as component 1;
[0051] 2. As a blank control group, press figure 1 As shown, a single PVA-PAN film is used instead of a double-layer film structure to be clamped between the methanol storage tank and the anode collector plate, which is marked as component 2;
[0052] 3. As the experimental control group, figure 1 The two membranes shown are both PDMS-PSF membranes (alcohol-permeable and water-blocking membranes), which are denoted as module 1-1;
[0053] 4. As the exp...
Embodiment 2
[0060] This example mainly compares the performance improvement of the battery after the moisturizing structure formed by the combination of alcohol-permeable water-repellent-water-permeable alcohol-repellent film is applied to the battery when the temperature is higher and the humidity is lower, including the following steps:
[0061] 1. As a blank control group, press figure 1 As shown, a single PVA-PAN film is used instead of a double-layer film structure to be clamped between the methanol storage tank and the anode collector plate, which is marked as component 2;
[0062] 2. As the experimental control group, figure 1 The two films shown are PVA-PAN films, which are marked as module 2-2;
[0063] 3. As an experimental group, figure 1 The two membranes shown are PDMS-PSF membrane and PVA-PAN membrane respectively, which are denoted as module 1-2;
[0064] 4. During the experiment, for all test batteries, inject 1ml of pure methanol into the anode methanol storage tank, a...
Embodiment 3
[0067] This example mainly compares the performance improvement of the moisture-retaining structure formed by the combination of alcohol-permeable water-repellent-water-permeable alcohol-repellent membrane applied to the battery when lower temperature, higher humidity and larger buffer chamber are used, including Follow the steps below:
[0068] 1. As a blank control group, press figure 1 As shown, a single PVA-PAN film is used instead of a double-layer film structure to be clamped between the methanol storage tank and the anode collector plate, which is marked as component 2;
[0069] 2. As the experimental control group, figure 1 The two films shown are PVA-PAN films, which are marked as module 2-2;
[0070] 3. As an experimental group, figure 1 The two membranes shown are PTFE membrane and PVA-PAN membrane supported by carbon paper, which are denoted as module 1'-2;
[0071] 4. During the experiment, for all test batteries, inject 1ml of pure methanol into the anode met...
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