I'm glad I'm not the only one who picked up on the two strong body language moments of the meeting:
1) Elon was extremely hesitant and somewhat uncomfortable talking about getting into mining and
Interesting. I don't read body language well. It seems that getting into mining is an "unavoidable", which would explain the body language.
Mining's a business full of shady characters -- I wouldn't want to get into it either. But there's some mineral where the supply chain just isn't building itself, even though there are plenty of deposits -- either lithium or cobalt, probably. They may simply flat out have to finance one or more of the mining operations, and I think Musk doesn't like it, but they'll do what they gotta do. The smallest one (Pure Energy) seems to only need $300 million in financing. Most of the others were half a billion to a billion.
2) regarding battery advancements and Maxwell, those guys were beyond giddi. They could barely contain themselves on stage. It was a strong confirmation that the Maxwell tech or whatever else they have cooking is HUGE and I would venture the guess: Soon!
Well, I listed off the known benefits.
Maxwell believes that they can, right now, increase gravimetric and volumetric density -- which essentially increases range and cuts cost per kwh. This is because the dry electrode techology avoids a certain sort of "waste" which is deposited in the cell during the solvent / drying process and is essentially deadweight -- I forget the details, someone else can remind us.
(Maxwell has demonstrated 300 Wh/kg, vs. Tesla's current 207 Wh/kg, but that is probably with a different or more expenisve chemistry -- if it isn't, then that's effectively a 50% range increase and 33% cost reduction per kWh.)
They also believe that they can cut the cost of the electrodes (per cell) by "10%-20%+" which is an additional cost reduction. (I'm not sure what percentage of the cell cost is the electrodes.)
Maxwell thinks they can reduce the area used for electrode production to 1/16 of what the "wet electrode" process uses, saving vast quantities of factory space. And the capital costs of new lines will be much lower than for wet electrode lines.
It's also supposed to double the battery lifetime (in terms of cycles).
In addition, because the line design is so much simpler and less time-consuming, it will definitely improve the cash flow cycle -- less time from "raw materials arrive" to "cell is ready to go in pack".
And it may even improve the line speed -- I'm not sure whether the electrode deposition was a bottleneck or not, but if it was, then it might improve the speed.
If Tesla can get this all up to factory scale in cylindricals (Maxwell's experimental batteries weren't cylinders) then it is a spectacular coup. It will enable 400 mile (or 450 mile) range vehicles which weigh less than the current vehicles, and cost less to produce, and have lower capital costs to set up the lines, and take up less space -- I mean, think about the effect on the cost structure. It's spectacular.
(BTW, if Maxwell's optimistic plans *all* come true, including the "path to 500 Wh/kg", they should be able to make the mythical $20K long-range electric car. But that is too optimistic.)