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Vanadium-Based Hydrogen Storage Alloys: The "Safeguard" of Green Hydrogen Storage

One of the core challenges in the widespread adoption of hydrogen energy is storage safety, and vanadium-based hydrogen storage alloys are becoming key to solving this problem. Unlike high-pressure gaseous hydrogen storage, which requires dangerous pressures of 35-70 MPa, vanadium-based hydrogen storage alloys operate at room temperature at pressures below 5 MPa, equivalent to one-third the pressure of a typical pressure cooker, significantly reducing the risk of leakage and explosion.

The unique electronic structure of vanadium gives these alloys a strong hydrogen adsorption capacity, enabling hydrogen storage capacities exceeding 2.5wt%, and achieving a reversible hydrogen storage density of 95% within 2 minutes. Even more remarkable is the exceptionally long lifespan afforded by vanadium: after 2,000 cycles of hydrogen absorption and desorption, the capacity decay rate remains below 8%. A production line with an annual production capacity of 100 tons has been established. In China's power grid photovoltaic-hydrogen energy storage project, vanadium-based alloys have even safely stored 165 kilograms of green hydrogen, providing a reliable solution for large-scale clean energy storage.