Tesla Cybertruck Structural Battery Pack INSIDES REVEALED!
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- เผยแพร่เมื่อ 11 เม.ย. 2024
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Munro Live Twitter x.com video: / 1775248021636223310
Munro Live Twitter x.com images: / 1775245471868473551
Munro Live TH-cam video: • 4680 Battery Pack: Wha...
The Munro team is in the process of tearing down a Tesla Cybertruck and they recently posted on x.com images showing an internal look at the Cybertruck battery pack. In this video I make some observations based on what I see in these images and compare the Cybertruck pack design to the Model Y and to the original structural battery pack design that Tesla unveiled back in 2019.
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2. Various video clips and Images sourced from Munro Live on TH-cam and x.com.
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If that's the underside of the vehicle, I wonder if they added the space there for protection in off-road scenarios.
Update: Munro believes the same.
Why not just eliminate the internal battery space and add a real skid plate then ?
@@happygilmore8768 do skid pads have crash zones or are they just abrasion resistant?
I think the direct vertical forces are quite easily managed by a simple steel pan, as you see on most ice vehicles. The forces the batteries, glued into a 3 inch thick rigid sheet, resist are the twisting forces imposed on the vehicle as it drives over uneven pavement. Ideally these forces should taken up by the suspension. However that assumes the suspension is attached to a rigid structure that does not itself flex. In a structural battery pack the batteries provide this rigidity for 'free' -- i.e. by requiring no additional frame or body structures and their additional weight.
Sandy states in the video that an off road vehicle requires an impact allowance in terms of denting the under carriage so you need that additional spacing to protect the cells and possibly venting considerations. Watch today's Munroe Live.
So.. we're supposed to put our $100,000 of trust in rtv silicone, an air pump and a small release valve.
I have never believed the can wall thickness was the structural portion since the foam can compensate for this. I believe the tablets flower at top and bottom that allows for some puckering at each end without breaking the connection is the "structural magic".
Jon, the structural battery pack on both the Y and the C have 4 crossbars under the seats. They also have 4 bridge structures going front to back, which the seats attach to. That’s a lot of support.
I also looked at how, after the battery is placed, the console slides forward to mate with the bottom of the dash and was wondering if that also offers structural support?
When Munro Live shared how they took apart the Y battery cells from each other, they had a really hard time prying the cells apart from each other. So it’s the cells bound together with the foam that provides structural support:
Keeping the floor from flexing,
Resisting the frame from twisting,
Resisting some of the crushing from the side or front / rear.
Plus the foam will keep the cells from jumbling around.
And the foam will do a wonderful job as a sound barrier,
Both for noise from outside and
Shocks from sound waves moving through the vehicle:
The car will feel more solid, less like a rickety rust bucket!
I was curious how far back the battery pack could stretch?
If it indented where the rear wheels fit, could the pack go all the way back to the rear bumper? You would want a crumple zone but you might be able to get that by having no batteries inside the pack for the 24 inches at the back. Have that part filled with metal honeycomb (it’s light yet structural).
The part they call the penthouse, where all the battery controls are housed, it looks massive, much larger than it needs to be. I can see all the parts inside it could be miniaturized and fit the dimensions of a computer tablet so it could be located anywhere in the car.
John the 32 mm of depth between the tops of the batteries actually bottoms seen in the Monroe live video and the plate that they removed was on the bottom side of the battery pack so it doesn’t really have anything to do with vertical loadbearing capacity since the force is exerted from the opposite side.
It's upside down, the extra space is the one between the bottom cover and bottom of batteries - it's for the extra space for possible dents or outgasses.
🙋♂️JON ,THANK YOU AND ALL YOUR SUPPORTERS FOR SHARING THIS, AND THE MUNRO VIDEOS THAT I SOMEHOW MISSED 🤷♂️💚💚💚
You are thinking that structural means only vertical but it has structure in other directions since NOTHING is holding the bottom (tops) of the cells except their sides connecting to the longitudinal beams between the sections. The cells provide rigidity to the pack from twisting.
also allows for a 4695 cell development later. Simply increasing the height of the pack as needed
My thought exactly
Alternatively, given that the empty space is on the underside of the pack - i.e. it faces the ground - it could be that it acts as a vertical crush zone so to speak. Think about it for a moment - this is a "truck" or an "off-road" vehicle thus, generally speaking, it is exposed to a harsher environment and more likely to bottom out or sustain underbody impacts. If that space is filled with more batteries then the crush zone, if any, loses effectiveness and any impacts to that bottom side of the battery pack have a much higher chance of damaging the batteries inside.
That's my 2 scents💩💩😁
That makes a lot of sense and is likely the reason.
I know we’re all asking if there’s enough vertical space for another layer of 4680s. But they could always make the whole pack a bit taller too right?
This allows the structural pack to be battery agnostic
The batteries need more surface connection on top and bottom for more power output.
You don't want members that change their dimensions, swelling and shrinking with their state of charge, to be your structure. Not only will they be a variable form of support, but their function as batteries may be compromised by being twisted, pushed and pulled.
Good points!
It seems to me that Tesla is prepared switch to a larger battery like 4695 or even some other battery type - prismatic or pouch.
So how does somebody have a cybertruck to take the pieces you could have told us that 😊Can't believe the most important part is blurred grrrrrr
Otherwise great info, good technical detail as usual, I hope the person who took that video gets a new camera..
Or, as others have pointed out, taller 46xx cells. Changing to a taller cell is more likely than a second layer of 4680 cells. Think about it from a manufacturing point of view.
It could be very realistic that Tesla will have a 2nd type 46xx batteries with a different height in the future. Increasing the height would be the best solution to increase the capacity.
Solid state batteries with a higher energy density and faster charging would be the best solution, but that's not going to happen anytime soon. Until then, trying to make a BEV long range pickup truck is impractical without an ICE range extender.
Possible. BMW is planning to use 4695 batteries for their future EVs because they don't care about economies of scale.
@@vulpoSolid state batteries have been a dream for over a decade and a half. Yet they're still very expensive and not mass produceable. One of CATLs lead battery researchers appeared in a recent video explaining why solid state batteries are a pipe dream for mass produced vehicles and aren't nearly as safe as proponents would like you to believe.
As far as trucks are concerned, most aren't used for towing or hauling anything, much less doing it long range which means that most trucks would be totally fine as an EV with today's 300ish miles of range. Gas and diesel trucks will continue to fill the long range towing/hauling niche for at least another decade.
@@vulpo SSBs are dead. Very poor cycles.
All of Elon’s promising on the CyberTruck were false. No exoskeleton, no structural batteries, worst range, higher price, windows are weaker, doors are thinner (so less tough). Almost nothing from the original showcase made it to production.
It’s still a great truck but the promise was so so much more.
There isn’t enough room to double stack 4680’s. Space is there for impacts for off roading, so cells don’t get damaged as easy. Look at the Hyundai battery damage issues up in Canada. Elon wants nothing like that debacle.
No room for a double stack, but 46x105s would work.
Batteries, batteries, batteries......Tesla needs more 4680 batteries.
Limiting the number of cells allows for an increase in cybrtrk production numbers
Structural pack does not mean structural cells..
Plenty of room for a 46x120 cell.. 150% capacity but also weight..
I get that. My main point is this is does not appear to be what Tesla originally envisioned.
@@Cleanerwatt no. you dont get it. you ripped off content from Munro and left out the most important parts of what they said about it. They declare in their video that it is in fact working as a structural pack and that it's as solid as a brick. It just isnt working in the way YOU think it should as a structural pack.
@@KenLord I didn't "rip off content from Munro" - this was all used with permission from them and I spoke on a ZOOM call with their Director of Electrification.
Also, This video was recorded and edited several days before the Munro video came out, so I didn't have that info yet.
I never said that this wasn't a structural pack, but that it had extra structural supports that wouldn't be necessary if the cells were taking the vertical load of the pack. Take a look at what Tesla unveiled back in 2019 and you can see what I mean.
@Cleanerwatt I'm aware of 2019. I'm shocked that you'd make a fake controversy video based on that old detail when you know that details change when the engineering is done. Again ... Munro says it is a structural pack. It just isn't in the way you want us to think it is. Vertical isn't the only direction, and no doubt these bricks resist twisting and bending really well.
You aren't an engineer. Stop talking as if you are.
@@Cleanerwatt I don't understand what vertical load you are talking about. The pack connects the front and back giga castings. The load between them is basically a bending or twisting load. To resist that the pack must be stiff. It achieves this stiffness by immobilizing batteries with foam so they cannot slip against each other. This is the same strategy as the honeycomb sheets used in aircraft design. Beams that span an opening (like the floor joists of a house) easily handle shear forces -- if they fail, they fail in bending. Same with the battery pack except that it also has to handle twisting forces from the vehicle movement over potholes, etc.
Battery day was in 2020
I asked AI this question:
List the components of a 1,000-pound EV lithium battery and their cost per pound
AI:
Sure, I can give you some estimates for the weights and costs of the key elements in a 1,000-pound lithium-ion battery:
- Lithium: 30-40 pounds, costing around $10-15 per pound
- Cobalt: 150-200 pounds, costing around $30-40 per pound
- Nickel: 300-400 pounds, costing around $10-15 per pound
- Manganese: 100-150 pounds, costing around $2-3 per pound
- Graphite: 200-250 pounds, costing around $1-2 per pound
- Copper: 90-110 pounds, costing around $4 per pound
- Electrolyte: 30-50 pounds, costing around $10-20 per pound
- Separator: 10-20 pounds, costing around $5-10 per pound
- Casing and other materials: 50-100 pounds, costing around $5-10 per pound
Total cost is $8,960 per 1,000 pound Lithium battery for a BEV.
The battery in a Model Y weighs 1,700 pounds so for a Model Y:
$15,232 cost for a single battery
I then asked AI this question:
How much dirt must be moved/processed for the above 1,000 pound lithium battery?
AI:
About 90,000 pounds of ore and brine are needed to make the 1,000 pound battery
and an additional 500,000 pounds of overburden must be cleared to get to the ore
all of which are done with diesel-powered equipment
-------------------------------------------
So how much does the Mad Max Cybertruck's battery weigh?
In Australia a large number of the ore removing vehicles are electrifying for cost reduction reasons. Things change.
@@longboardfella5306 Ha ha ha - "Cost reduction reasons."
Ha ha ha
It seems kinda dangerous to put physical load and stress on the batteries.
Not really, the stress placed on them is so much lower than the plastic limit, it has zero effect on their structural integrity. Since the stresses are distributed among _many_ batteries, and this equalization is maintained by external members, there would have to such substantial damage to exceed it that the stress on the batteries would be the least of your concerns.
P.S.: I’m a mechanical engineer with extensive experience in 3-D stress, fatigue, and wear of individual members within a larger structure. In particular, I pioneered the use of steel tube umbilicals in dynamic applications by conducting prototype testing of them in the 90s.
How come I see a ton of QR Codes and noone decides to take a QR Codereader and see what they say? who verified the pack was actually a 124kw pack and not a 100kw pack made for the RWD model?
Another thing to note is theres alot of opinions and speculations etc about the structurability of a CT battery pack so why cant someone request a sealed up battery container thats totally empty then bolt it into a vehicle and give it a rigerous articulation test between both to see if the can or the whole battery is the actual structure ?
Wouldnt you agree if you claim a truck will have 500 miles of range it should have 500 miles of range?
Do you know theres a tesla called a hesla that gets 600 miles and the reason why it gets so many miles is because its combined with a hydrogen fuel cell....?
Seems to me the only person whos mindboggingly stupid is definately Elon Musk by not embracing hydrogen.......
Did you also know that chemical rockets burn hydrogen too but elons rockets are stuffed with chemicals that roll coal?
Wouldnt you think it would be a win-win by cleaning up the environment with better more environmentally friendly rockets and vehicles that run longer plus rely lesser on the energy grid?
The 4680 cell is a complete failure so far. Tesla cannot seem to nail down the manufacturing process and get sufficient energy density. Even the Chevy Silverado has a 450 mile 50% more than the Cybertruck. The best EV battery in the world at the moment is the BYD Blade LFP battery. Tesla should use this battery and license it from BYD.
The Silverado has the longest range of any EV truck currently and has 2x the batteries as the CyberTruck.
Not sure about the blade batteries. I’m heard something about BYD’s battery not being super robust but can’t say for certain how wide spread that is or if the battery type you are talking about has those problems.