“If you invest in stocks I suggest taking a look at the companies that are getting ready to mass produce solid state batteries.”
Do you mean the “Nuclear Diamond” Battieries?
The companies I am most familiar with are SLDP and QS.
Of course there is risk with any particular company, but less risk in the move to solid state batteries in general.
It’s very similar to what’s happened with computers, Cell phones, electric doors and many other applications.
Most electric door locks now use batteries that last several years.