4680 battery pack!

[mark95476]

Things just got really interesting! 4680 packs are supposed to go into the MY first.

Tesla, TSLA & the Investment World: the Perpetual Investors' Roundtable

I'm assuming it's for testing in current vehicles and is not structural. Bill Wright confirmed a tweet which described the pack as both 4680 and structural. Possible I guess that he was focused on one aspect and not the other when he did so. I am now seeking the definition of structural pack...

teslamotorsclub.com

 

[mark95476]

Here's an article that points to the same tweet. Its been a ~year since Tesla had battery day and announced the 4680 pilot factory so this is somewhat expected.

Tesla's 4680 Batteries Seem To Be In Production — Structural Battery Packs Coming? - CleanTechnica

Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News! WholeMarsBlog shared a now-deleted Reddit post on Twitter that provided clues to just how soon Tesla’s first structural pack with the new 4680 battery cells will be ready. The post was deleted before I ...

cleantechnica.com

Sandy Munro shared a picture of an early 4680 pack a while ago (see ~7:40).

 

[Terminator857]

https://twitter.com/x/status/1429050987529003014

October for standard range (SR) Model Y in the U.S. is very unlikely when backlog is >6 months. Likely for China. Will happen in U.S. after Austin is in mass production.
Above tweet mostly confirms what Elon said earlier about LFP in SR:

https://twitter.com/x/status/1365055830085763081

 

[smcginnis]

Check out the range on the CARB certificate for MYLR:

 

[tpoltron]

Interesting. There does seem to be an extra M Y variant with 28 miles more UDDS range (~20 more EPA) compared with last years:

https://ww2.arb.ca.gov/sites/default/files/classic//msprog/onroad/cert/pcldtmdv/2020/tesla_pc_a3740032r3_0_z_e.pdf

 

[Gladius]

There are two performance models one with 21" wheels. Assuming they will standardize the MYLR with single wheel size option

 

[Bikeman]

There are two performance models one with 21" wheels. Assuming they will standardize the MYLR with single wheel size option

Oh, I hope not. The 19's give a softer ride. And why would Tesla eliminate options that would yield additional income and profits? There are those that even find 18" wheels and tires for their Y's to further increase range and soften the ride.

 

[Gladius]

Oh, I hope not. The 19's give a softer ride. And why would Tesla eliminate options that would yield additional income and profits? There are those that even find 18" wheels and tires for their Y's to further increase range and soften the ride.

Does anything ever make sense with Tesla?

 

[DanDi58]

I'm confused by these documents. The first one posted by @smcginnis references Model Year 2021 vehicles, which we know will not be made at Austin - 2022's are coming out of Fremont now. But the dated page is missing. The second one, linked by @tpoltron dated July 2020, shows essentially the same UDDS for the MYLR as the first one posted which also shows a higher rated MYLR. Is the implication that the higher MYLR is a 4680 car? What am I missing here? I'm not sure what these are saying about the 2022 models.

 

[orion2001]

Check out the range on the CARB certificate for MYLR:
View attachment 764389

I don't believe this has anything to do with 4680 cells and is a misunderstanding of the urban Dyno testing and how it is used to estimate range. You can read more about it in the link below but the short of it is that a ~30% reduction factor is applied to this raw mileage number to get to the published range which jives fairly well with Tesla's rated range on their cars.

The Secret Adjustment Factor Tesla Uses to Get Its Big EPA Range Numbers

How Tesla puts distance between itself and the competition while still playing by the EPA's rules.

www.caranddriver.com

In general, Tesla has 0 reasons to increase range with the backlog they have when they are battery limited. 4680 cells will mainly be good for Tesla and help them produce more cars by using less battery materials per car.

 

[Bikeman]

In general, Tesla has 0 reasons to increase range with the backlog they have when they are battery limited. 4680 cells will mainly be good for Tesla and help them produce more cars by using less battery materials per car.

Right. A similar mileage car will use less mass of the new 4680's, less mass in the megacasts, and less mass in the structural housing around the sells. But then, less mass equals more range, so there is the paradox.

 

[bluenycom]

Right. A similar mileage car will use less mass of the new 4680's, less mass in the megacasts, and less mass in the structural housing around the sells. But then, less mass equals more range, so there is the paradox.

There is no paradox; they just use fewer battery to give similar range. It's about cost reduction, more profit.

 

[HellsKitchen]

There is no paradox; they just use fewer battery to give similar range. It's about cost reduction, more profit.

But if they're using the batteries as part of the cars' structures...

 

[bluenycom]

But if they're using the batteries as part of the cars' structures...

That doesn't mean they have to fill the entire space with battery. Have you thought about how much it would cost to fix or replace battery if it's part of the structure? Tesla battery now is like old smartphones when you can just pop old battery out and put in new one relatively easy.

 

[STS-134]

That doesn't mean they have to fill the entire space with battery. Have you thought about how much it would cost to fix or replace battery if it's part of the structure? Tesla battery now is like old smartphones when you can just pop old battery out and put in new one relatively easy.

It basically means that any time a battery replacement is required, the car is likely to be totaled. That's why I don't think this whole structural battery thing is a good idea. On Battery Day, they used the analogy with airplanes using structural components as fuel tanks, but the big difference there is that you can actually drain and replace the fuel inside the wings without pulling the wings off of the airframe...

 

[DanDi58]

It basically means that any time a battery replacement is required, the car is likely to be totaled. That's why I don't think this whole structural battery thing is a good idea. On Battery Day, they used the analogy with airplanes using structural components as fuel tanks, but the big difference there is that you can actually drain and replace the fuel inside the wings without pulling the wings off of the airframe...

Well, technically you can drain and refill the batteries without pulling the pack off the car.....

 

[BreatheEasier]

None of us know exactly how this works, and I would be amazingly surprised if replacing the battery meant totaling the vehicle. The impact this would have on insurance alone would be staggering. We will find out soon...

 

[STS-134]

Well, technically you can drain and refill the batteries without pulling the pack off the car.....

True. But fuel tanks don't "wear out" like batteries do.

 

[DanDi58]

True. But fuel tanks don't "wear out" like batteries do.

I don't know, the inside of my MGB's gas tank was pretty rusty and the original one rusted through the top as well.

 

[Whatstreet]

It basically means that any time a battery replacement is required, the car is likely to be totaled. That's why I don't think this whole structural battery thing is a good idea. On Battery Day, they used the analogy with airplanes using structural components as fuel tanks, but the big difference there is that you can actually drain and replace the fuel inside the wings without pulling the wings off of the airframe...

Think of all the creations that will result from the abundance of parts.