We’ve got been reporting in regards to the Tesla Model Y mega castings for fairly a while already. Little did we all know that this was a part of a a lot bigger plan: Tesla intends to combine the battery pack to the physique construction of its future automobiles, and the huge forged components are a vital a part of that concept.
Elon Musk stated Tesla developed a particular alloy to make that occur. This new aluminum alloy needed to be very castable, high-strength, and never susceptible to retreat, which causes giant castings to deform. Tesla needed to keep away from that in any respect prices.
What Tesla is casting now at Fremont are the entrance and rear sections of its automobiles. What in regards to the center, proper? Properly, that will likely be complemented by what we now name the battery pack. Contemplating it will likely be a part of the automobile construction and therefore not replaceable as present battery packs are, Tesla will in all probability have to call it as one thing else. Musk already known as it “structural battery.”
This new structural battery casing won’t solely present the automobile with the power it wants but additionally guarantee its rigidity and security. Curiously, that can also be impressed by airplanes. If you happen to bear in mind, the Tesla Cybertruck could have a stressed-skin construction as a result of how plane are manufactured.
Like in airplanes, that helps save mass within the automobile. A lighter automobile can journey additional and be extra energy-efficient. Musk additionally stated that the ensuing construction is way stiffer than you’d discover in any present automobile, even when it have been a convertible. Which means probably extra security to the automobile’s occupants and higher dynamic habits.
In line with Musk, that may permit the automobile to have a ten p.c weight discount, a variety improve of as much as 14 p.c, and 370 fewer components, which means the manufacturing and manufacturing prices are a lot decrease than those Tesla has these days.
If that’s spectacular, there’s a consequence that must be addressed. Changing outdated or faulty batteries will likely be just about inconceivable. If the batteries are a part of the automobile construction, you both get them to final as a lot because the automobile itself, or it’s important to do away with the car altogether if something goes bitter with them. 1,000,000-mile battery would in all probability clear up this subject, however no person has spoken about that risk for the 4680 cells thus far. We hope they do it till the top of the presentation.