That won't happen in many years, with the available space, you would need double the energy density of what we have today
Energy density alone hasn't improved that much over the past years, what we got is more power dense cells while keeping the energy density constant
The Panasonic NCR18650-B was one of the first high energy cells to hit the market with above 3000 mAh and has a gravimetric energy density of 243 Wh/kg, it was launched on 2009 and a slightly modified version was used on the Model S in the beginning
Today 2170 cells Tesla use are at 269 Wh/kg, so in 14 years we got a 10.6% increase in energy density. With everything Tesla showed on battery day, 4680s might get to 350 Wh/kg, which is a 44% over the original Model S from 2012
Yes, I'm ignoring the ultra niche and ultra expensive cells that are at supposedly 500 Wh/kg since they are irrelevant for now Tesla products wise
This reminded me of Musk saying this in 2020. That’s around now. The Batteries Behind the Electric Aircraft Revolution - Avionics International
Tesla and SpaceX founder Elon Musk has opined that 400 Wh/kg of energy density with high cycle life, produced in volume, is necessary for electric aviation applications — a benchmark he recently tweeted is “not far. Probably 3 to 4 years.”