I've been hearing this for 20 years in 100,500 applications from all sorts of startups, and then they forget about them. But perhaps the owners of the next startup will attract money from the next foolish investors and live on it very well for many years. =)
And we are still sitting with dull batteries for 300-700 cycles (at best, up to a 75% drop in capacity) and a maximum of 250Wh/kg on average.
Where are all these promises of 5-10-15-20 years ago? Even promises made 5-7 years ago should already be implemented in ready-made manufacturing technology and massively used in production if they really provided a technological breakthrough...