There have been tons of rumors flying around how what changes Tesla had made to increase the capacity so drastically. Rumors of new cooling patents, increased voltage, new cell double bond wiring, incompatible with older cars, and all sorts of things.
Personally, I figured Tesla wouldn’t reinvent the wheel just yet and go with a whole new pack design, but who knows. Not me, so that had to be corrected. 😀
Without further ado, here is a shot of a module from the 100 kWh pack.