Now that much more research is going into EVs, rather than ICE vehicles, the developments will keep coming – IMHO! For example:
A new fabrication technique could allow solid-state automotive lithium-ion batteries to adopt nonflammable ceramic electrolytes using the same production processes as in batteries made with conventional liquid electrolytes.
“The solid state battery appears to defy previous understanding of thermodynamics, but if this technology succeeds, it may not just be Goodenough, it might be something to Braga about.”
Source https://garagewire.co.uk/garage-wire-views-issuu/opinion-the-solid-state-battery-still-has-more-to-offer-for-future-evs/