There's been recent advances with MOF filters that energetically favors Lithium going through, kind of like ion channels in cells. It drastically decreases time and water cost in filtering out Lithium, and I guess it's being tested at scale now. It certainly won't solve Lithium supply constraints, but stuff like that's cool to look at... advances in one area of tech research potentially facilitating progress in others. It'll be interesting to see how things change over the next decade.