Ann: Quarterly Activity and Cashflow Report, page-56

Toshiba are one of the big manufacturers with patents on using Niobium
For Fast Charging and Longer Lasting EV Batteries:

https://www.global.toshiba/ww/products-solutions/battery/scib/next/nto.html

Using Niobium Titanium Oxide (NTO) as a next-generation anode material
Toshiba have been focusing our attention on the possibility of Niobium Titanium Oxide (NTO) as a next-generation anode material that will help increase the battery capacity while maintaining the excellent characteristics of lithium titanium oxide (LTO), the conventional anode material of SCiB™.
NTO has roughly three times higher theoretical volume capacity density than LTO while providing the advantages of LTO such as long life and rapid charging.



Increasing the energy density by 1.5 times while maintaining the SCiB™ advantages of long life and rapid charging
Toshiba have successfully increased the crystallinity of NTO particles and increased diffusibility of lithium ions by taking advantage of its unique electrode technologies accumulated through SCiB™ development. Toshiba is aiming to increase the energy density by 1.5 times more than the existing 20Ah SCiB™ cell without compromising its long-life and rapid-charging performance. The use of NTO reduces the size and increases the capacity of batteries, making it possible to extend the traveling distance of electric vehicles.




Every EV Manufacturer will be using Niobium soon IMO...
They will simply need to do so to keep up with the Competition !!!!