ohmaheid
2.5 tons and 600 mile range? I'm calling BS on that.
My initial thoughts. It might not be “commercially viable” but prototypes have to use stuff that can be feasibly mass produced or acquired for assembly, otherwise they're not worth making (unless the plan isn't to make something that can transition into a mass produced product, which does happen in the realm of concept cars). Dyson won't be making those batteries, they'll be buying them in as Tesla did.
I know of nothing that is ready for mass production / prime time that has this kind of energy density.
Sounds like a marketing plug to me, and one which will never be verified because no one will make it, and they have the prototypes.
It's an excellent way of telling investors “this is why we couldn't move it and why your dividends are lower than you hoped. It's all down to the market, we made something awesome and amazing and so it's still worth investing in our creative genius”. Tesla's first cars were stupidly expensive - there was still a market in the early adopter, greenie millionaires. If it was viable, you'd have been mad to not build them to order, charge a fortune and make it a halo product people could use to show how green they are. You might not get all your money back, but you'd get some and you'd also get a lot of notoriety, helping to push the “green” credentials of your brand.
You could even get a second mortgage and a Dyson hair dryer to pop on the seat next to you for posing value.
Back to the initial comment - does anyone know of anything currently mass produced that could have this kind of energy density? Bearing in mind the sheer size of the car and that it's probably going to be using 1.5 tonne on everything else…