This reminds me of using gaming to find solutions in science at a much greater speed than usual.
However, the biggest problem with batteries is recyclability and the cost of recycling.
Also, while yttrium is not a proper rare earth, where the yttrium comes from also has to be considered. China, mostly.
So while this uses 70% less lithium, and the needed sodium and chlorine are ubiquitous, it also requires yttrium.
We’re talking NaxLi3−xYCl6(0<x<3) series here, so it requires up to 3 times more lithium than yttrium and far more chlorine. So that’s okay.
Interesting development. Recyclability isn’t mentioned. Too early for that.
