RE:Solid state batteryNot likely they will be using solid state right away as there is still development work being done and I have heard of scaling issues. Lots of companies are working on a solid state however still developing. I've heard that Tesla is not going solid state but working on lithium ion improvements. There are also silicon ion batteries as well as some other batteries in development stage. Quite a few really. You can spend all day on YouTube researching it. Still though the lithium ion battery is projected to have the lions share of the market beyond 2030. The graphite demand and shortage situation as EV market grows is a given. Listen to the last 10 minutes of the Nouveau Monde video again because it's talked about there.