The trick is that we are
The trick is that we are always on the brink of a battery technology breakthrough. Samsung battery engineers are very talented, and they announced 3 years ago that they were coming out with automotive EV batteries that would have twice the storage as Panasonic's 2170 batteries used in the Tesla Model 3. But they have not been manufactured yet in volume. Samsung showed that they could build a promising prototype graphene battery in 2018. Graphene is an amazing material that enabled their prototype battery to recharge fully in 1/3rd the time of conventional Lithium Ion batteries, but most likely we will only see them used in phones, and that will be maybe 1-2 years away from now. Similarly their latest battery design does show great promise with longer life and greater energy density. But again it is still in the early prototype stage of development, and it will probably be 2-3 years before they produce phone batteries based on this technology, and another 2-3 years before car batteries are produced. Previously, Elon Musk was asked about solid state batteries in an open conference call, because the press was busy plastering the internet with stories of new, innovative battery technologies that would be far better than the lithium Ion batteries used today. He said that there were many promising technologies out there, but the road from university lab experiments, to prototype batteries, to mass battery manufacturing is a long one, with most ideas unable to make it to production for a myriad of reasons. He said that Tesla was one of the world's largest buyers of lithium ion batteries, and if anyone had a better battery that they should bring it by Tesla for them to evaluate for production/purchase. Shortly after that Tesla bought Maxwell Technologies.