Lot of different emerging battery tech using less strategic materials coming out soon. One of the unforeseen outcomes of developing battery tech so rapidly for cars is that in the short term, high power density battery technology is being used in places where high density is not needed like storage. The early Tesla home batteries use the same batteries as cars which are a resource intensive design for high power density. They also like the burn explosively and fire departments really dislike them (I have 1.6 MWhr Powerwall based battery in the process of being commissioned in Mass and the fire requirements are not easy to meet). The new Tesla Megapacks and competitors use a Lithium Polymer battery, slightly lower power density but far more forgiving. The LiPo batteries use far less strategic materials.
I had two zinc based flow batteries approved in Mass for storage applications, but both did not get built due to client finances (healthcare is a rough business). The recirculating liquid in the battery could be drank, although not recomended. Many bets are that Lithium based batteries are just a short term thing, that is why folks like Elon Musk are begging other firms to mine it, he doesnt want to get tied into mining knowing that the investment could be worthless in less than 10 years.
Bill Gates and friends spent a couple of 100 million on Aquion batteries that used salt water for electrolyte and went bankrupt, GE built a 500 million dollar plant in upstate NY to build a new style sodium sulfur battery (Durathon) and scrapped the plant before going into production. Like any new technological growth spurt, hindsight is twenty twenty but anyone who invests now is one step away from gambling on what wlll be the ultimate battery tech. My guess is the solid state tech is the next big one but I sure do not invest my money in it.