Sichuan Porous Metal Technology Co., Ltd.
Sichuan Porous Metal Technology Co., Ltd.
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Porous titanium felt for electrolysis of water 0.4mm titanium felt titanium electrode plate anode diffusion layer titanium felt
The core material for PEM hydrogen production with completely independent intellectual property rights independently developed by Borsemai.
The main process of its preparation is:
Specification parameter table
| Parameter | Unit | Titanium powder felt(TPF) |
| Material | / | Pure titanium |
| Production process | / | High temperature sintering |
| Thickness | mm | 0.15-2.0 |
| Thickness | μm | ≤40 |
| Surface density | g/cm³ | 0.6-2.0 |
| Surface roughness | μm | ≤30 |
| Minimum aperture | μm | 3-5 |
| Average pore size | μm | 12-20 |
| Porosity | % | 30-50 |
| Compression | %2MPa | 3-8 |
| Tensile strength | KN/50mm | 0.6-2.0 |
| Width | mm | 500-1000 |
| Processing method | / | Laser Cutting |
| Application | / | AEM Hydrogen Production |
| Chemical Composition | % | Ti≥99.8 |
| % | N≤0.01 | |
| % | C≤0.01 | |
| % | H≤0.01 | |
| % | Fe≤0.01 | |
| % | Cl≤0.03 | |
| % | Si≤0.01 | |
| % | Mn≤0.01 | |
| % | Mg≤0.01 | |
| Appearance | / | 1. The surface is clean and has a silver gray metallic luster 2. There should be no cracks or visible black spots |
Characteristic:
1. Both pore size and porosity can be controlled;
2. Gradient pore structure
3. Large specific surface area;
4. Excellent water and gas transmission performance;
5. Excellent electrical and thermal conductivity;
6. High temperature resistance and thermal shock resistance;
7. Resistance to medium corrosion;
8. Weldable and machinable
1. Flexible and bendable
2. Large size and width
3. Extremely low surface roughness
Advantages:
1. Asymmetric gradient structure has excellent water vapor transmission performance
2. Flexible structure, good adhesion, small compression deformation, wide width, large length, random
Application:
PEM hydrogen production anode diffusion layer GDL
The anode diffusion layer is used for mass transfer of O2 and H2O in environments with high potential and acidity, requiring coatings with good corrosion resistance. The porous transport layer is located between the catalytic layer and the bipolar plate, serving as a pathway for water supply, gas emission, and electron transport, directly affecting the concentration polarization and Ohmic polarization of the water electrolysis reaction. The porous transport layer should have a rich continuous pore structure that is conducive to the diffusion and transfer of water and precipitated gases, as well as good conductivity to reduce Ohmic polarization. The anode side porous transport layer is generally made of corrosion-resistant titanium porous material in high potential acidic environments, and its surface can be treated with precious metal coating to reduce contact resistance and service life.