Lithium ion is not one thing. The 'Lithium ion' from 10 years ago is very different from it now. 'Lithium ion' is an umbrella term that contains lots of things

Lithium ion is not one thing. The 'Lithium ion' from 10 years ago is very different from it now. 'Lithium ion' is an umbrella term that contains lots of things. Just as 'solid state' is not really what anybody is talking about. What actually matters about 'solid state' is lithium metal anodes. There are also companies who are doing lithium metal anodes without being solid state. If 'solid state' ever make it into the market, they will just be the new 'Lithium ion'.