Battery Day side note: Elon Musk Debunks Vehicle to Grid

Lighten up a little:


Inspiration and innovation follows its own schedule. So when I was working a problem, I made it a point to share what was going on efficiently and frequently so I could get back to work. Elon's team no doubt is following the same paradigm:


Bob Wilson

 

@SD yes power wall is way, way better. Only like V2G if it enabled VPP to get rid of NG quicker. But would still like power wall to make it possible to use the car's batteries as an extension of power wall in a black out. Drew still said V2G is coming later. Just going in the direction of providing a little charge to an another EV that needs it in a pinch or powering tools is going that way. But I don't like V2G because it feels like going in the opposite direction of cutting the cord on the utilities.



As for the above bit about not being able to get the cells out if they fail. That has to be a non issue. With 1000x+ cells per vehicle a couple of cells going isn't an issue. And they can add auxillary cells to cover anticipated fails they don't catch at manufacture.



Bob Galyen noted tabless had been a way back early battery pattent application. Seems super conductors (Maxwell always used tab-less so what was the advantage of the tab- seems Jordan said internal fail safe like a fuse in a consumer cell that couldn't have external fail safes.)



Bob also said million miles or millions of milles is a function of depth of cycling relative to charge capacity because even lead acids would go millions of miles if the charge discharge cycles were super shallow relative to charge capacity. So get the total charge capacity up to lengthen battery life.



I don't believe they will be late on 4680. I think we will see them late next year or in about 12 months for some very good reasons. Any later will delay Cybertruck and delay the semi a 2nd time. Musk gave us not only a time line but specifically told us what the bottle neck was and layed out the distance in revision increments and the rate of increments. That is a lot of precision. Musk has to hit time guidelines to steady the stock valuation and increase it to continue to unlock his tranches which will be important for keeping control of the firm while unlocking capital access especially with that damn simple majority vote the fossil fuel shill investors keep pushing to scuttle the firm. And he has to keep thinks level and profitable for S&P inclusion but he can't Osborn it either.