You might want to re-read the article. That quote was talking about lithium ion batteries.
This scarcity, combined with the surge in demand for the lithium-ion batteries for laptops, phones and EVs, have sent prices skyrocketing, putting the needed batteries further out of reach.
Lithium deposits are also concentrated. The “Lithium Triangle” of Chile, Argentina and Bolivia holds more than 75% of the world’s lithium supply, with other deposits in Australia, North Carolina and Nevada. This benefits some nations over others in the decarbonization needed to fight climate change.
“Global action requires working together to access critically important materials,” Meng said.
If materials are not easy to access, then it won’t scale cheaply.
You might want to re-read the article. That quote was talking about lithium ion batteries.
Thanks for pointing this out better than I would have!