Tesla CEO Elon Musk has updated the timeline on which he sees batteries enabling electric aircraft coming to maket. He now sees it happening in "3 to 4 years."
Several years ago, Musk, the CEO of both Tesla and SpaceX, said that he had a design for electric vertical take-off and landing (VTOL) aircraft – though he never elaborated on plans to bring the aircraft to production.
In order for his design to work, Musk said that the energy density of batteries needs to improve.
At the time, he mentioned a threshold of around 400 Wh/kg while Tesla’s batteries were achieving around 260 Wh/kg.
Now a year later, Tesla’s CEO is slightly accelerating the timeframe to “probably 3 to 4 years” away (via Twitter):
“400 Wh/kg *with* high cycle life, produced in volume (not just a lab) is not far. Probably 3 to 4 years.”
Tesla's Elon Musk says that batteries enabling electric aircraft are coming in '3 to 4 years' - Electrek
https://electrek.co/2020/08/25/tesla-elon-musk-batteries-enabling-electric-aircraft-coming/