“Lithium-ion are now just over 200 Wh/kg”
Tesla is pushing 300 in production cells.
I have no idea what these smaller cells are.
The smaller batteries, I think, are standard lithium batteries. If you were to open up a lithum powerpack, you’d see these batteries that are shaped like AA batteries, but they are bigger. That’s the standard battery that is used in electronic devices. They are called 18650’s.
https://en.wikipedia.org/wiki/18650_battery
300, at least to me because Tesla is limited to the same limitations of lithium that everybody else is, is probably using custom made bigger batteries.