Dude you're getting excited over one-off's when the hard part with batteries is producing them at scale. None of this even sounds that spectacular. Here's a great example of why:
https://insideevs.com/news/771...
I don't know why you think sodium ion is great for EVs given its theoretical maximum energy density is lower than what we're already getting out of lithium, and they haven't even reached that yet.
I believe Tesla is already well ahead of them on dry-cells, which they're already producing at scale and are in production model Ys already on the road, far ahead of a trade show demo. And they're still going to get more energy density out of them than they already are. Right now the problem is energy loss, which can be improved as the manufacturing process is improved. They should eventually be able to deliver on what was originally promised, just not in the time scale originally thought. Like I said, manufacturing them at scale is the hard part.
And Tesla is already selling $29,000 cars that do everything you're talking about and more. By that I mean, the Chinese made model 3 premium is selling for exactly that price in Canada.
No trade barriers without having to fuck with US politicians means competitive pricing. Who would have thought? And then you guys wonder why cars sold here are so expensive while you cheer on the CCP. Get rid of the Detroit automakers and the UAW and watch how fast shit changes here. They're more entrenched and complacent than a socialist dictator. The fact that literally everybody EXCEPT that corrupt bunch is able to deliver a profitable EV says a lot about just how bad they are. The Detroit three and the UAW deserve each other. It was funny how Biden joined the picket line completely oblivious to the fact that they've been lobbying hard against EVs while part of his platform was promoting them. The last thing they want are cars that require less labor to build and less labor to maintain. The last thing the Detroit automakers want are cars that are harder to plan obsolescence around. And despite Trump killing off every last incentive for EVs while leaving in place oil subsidies and lowering emissions standards, Tesla is STILL gaining market share while STILL being profitable.
As for that 800,000km battery, I'm curious if that reflects real world usage. Did they even say how old it is? The reason I say that is because very high mileage battery Tesla's are all quite old. I believe the current highest is 500,000km on a 7 year old model X, and it's still doing well. And that's 7 year old battery tech, which is missing out on a lot of improvements since then.
What you obviously don't understand about EV batteries is they spend most of their lives between 80 and 90 percent of the original capacity. Even with very little use, they'll lose more than the first 10% within the first year. Just like cars themselves, how long batteries last is not about "how much they're used" so much as "how they're used". Having it on the road is a lot different than putting it though 800,000km worth of charge/discharge cycles, or even putting that many miles on a track.
That and the whole fact that so much BS in general comes from China. Tesla has regained market share there, which I think is less due to any changes at Tesla or BYD, and more due to the fact that so many EVs in China were "registered" and "sold" to literally nobody over the last few years. Google the "zero mileage used car" for more details.