Copper is going to be a key element, since it's required and cannot be substituted, contrary to lithium which can be substituted with sodium.
The demand for copper is going to drive prices up: there's not enough copper to satisfy the projected picture at a global scale.
We need to make choices as a society: I don't need the latest model, I can perfectly do with second hand devices. People should be choosing, not companies, not markets, not governments.