because its need to be so much massivly better to displace the current technology. everything that use battery tech would need get be retooled production facily's need to be build to build the new battery ect mining company's need start looking for these metals.

all these things take long as time to change wich shareholders dislike long term investment is getting more and more rare in the investment world everything needs to be a quick win everything need to grow in exceptional rate wich causes stagnation in loads of things