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Specific advantages of niobium-titanium alloys in fuel cell manufacturing

Niobium-titanium alloy has many significant advantages in fuel cell manufacturing, mainly reflected in the following aspects:

Advantages Overview
1. Improved electrical conductivity and thermal conductivity:
• The application of niobium-titanium alloy/Pt coating on the stainless steel SS316L substrate resulted in a 42.6% increase in in-plane electrical conductivity and a 3.5% increase in thermal conductivity. These performance improvements exceed technology targets set by the U.S. Department of Energy, making them even better at battery efficiency.
2. Corrosion resistance:
• Niobium-titanium alloy itself has good resistance to chemical corrosion and electrochemical corrosion, and can adapt to the working environment of high temperature, high humidity and high oxygen concentration of fuel cells. This means that niobium-titanium alloys can effectively reduce performance degradation caused by corrosion and extend the service life of fuel cells.

3. Simplify the manufacturing process:
• Since niobium-titanium alloy has good corrosion resistance, no additional corrosion-resistant coating is required during the manufacturing process. This feature not only simplifies the production process, but also significantly reduces manufacturing costs.

4. Mechanical properties:
• Niobium-titanium alloy has high specific strength and is easy to process, making it an ideal material for making bipolar plates. The material's lightweight properties help improve overall fuel cell performance, especially in mobile applications.

5. Environmental adaptability:
• Niobium-titanium alloy performs well in extreme environments and can withstand the effects of harsh conditions, ensuring stable operation of fuel cells in various application scenarios.

Niobium-titanium alloys have shown great potential in fuel cell manufacturing due to their excellent electrical conductivity, corrosion resistance, simplified manufacturing process, and good mechanical properties. These advantages not only improve the efficiency and life of fuel cells, but also lay the foundation for their wide application in future energy technologies.