Elon Musk: (02:17:07)
So starting with iron, that’s kind of like a medium range, and then nickel manganese as sort of a medium plus intermediate and then high nickel for long range applications like Cyber Truck and the semi. Something like a semi-truck, it’s extremely important to have high energy density in order to get long range. And just to give sort of iron up a bit more time, if you look at [inaudible 02:17:37] per kilogram at the cathode level of iron, it looks like nickel’s twice as good, but when you fully consider it at the pack level, everything else taken into account, nickel is about maybe 50 or 60% better than iron.
Elon Musk: (02:17:52)
So iron is a little better than it would seem, when you look at it at the pack level fully considered. It’s not as good as nickel, nickel’s like 50 to 60% better, but it’s actually pretty good. Good for stationary storage and for medium range applications where energy density is not paramount. And then, like I said, for intermediate, it’s kind of a nickel manganese, and it’s a relatively straightforward to do a cathode that’s two-thirds nickel one third manganese, which would then allow us to make 50% more cell volume with the same amount of nickel.
Drew Baglino: (02:18:32)
And with very little energy trade-off. Just enough to have, you still want to use 100% nickel for something like a semi-truck, but really not much of a sacrifice at all.