There are continual improvements in batteries all the time making them better, cheaper, and they are being deployed with exponential growth.

Silly headline. Just say solid state, yet again, the thing that's always been around the corner while lithium ion and sodium just ship ship ship on a massive scale.

If solid state works out, great, but it would no longer be a big breakthrough. Batteries are here and a major grid component today.

The first quantum laptop will run on solid state batteries that were charged with electricity from a fusion reactor.