There is a ton material on the Internet about solid state batteries. They are potentially a serious contender against lithium batteries. At least one approach is to use super capacitors. They are lighter and much recharge times than lithium based batteries. Whereas some prototypes should be in limited production this year (2022), I think great deal still has to be worked out. But considering hpw many big research labs and teams are working on the problem I doubt the delay will be all that long. NASA has a prototype for use in all electric aircraft.
Solid Power, backed by Ford and BMW I think are expecting production in about 2025. Here's a link where you can buy a starting solid state battery on Amazon today.
You can also buy them from Walmart today, perhaps special order. Point being that solid state batteries are not really a pipe dream that's years away. Some city busses, lost reference, have been using them for a while. As I recall the biggest problem has been that they don't hold a charge for more than a few days at a time between recharging. Not a problem for some applications. This was true a couple of years ago and may have been solved by now. The second problem is lower power density. A key area of research.
The potential is a drastically shorter recharge times. Like less than fueling a gas car. They are constructed from simple non-toxic materials,
Just do a Google search on solid state or supercapacitor/ultrcapacitor batteries.
All of this research is why I tend to blow off the current EV naysayer' arguments about range and recharge time. I don't worry about today's limitations but look forward to what is possible.
The past is to learn from, the present just became the past and all that's left is the future.