What's Inside a Tesla 4680 Battery? 

how is battery recycling

Wait! 10 hours and no one has replied? Hey Jerry love your videos and thanks for recommending this video!

Assuming it will go into production. ( At least in any semblance of the prototype, and not a more traditional pickup form factor ) More chance someone will take an old military vehicle, and electrify it. 😀 Jerry, loved your recent cell-phone teardowns.

I'm here after you video Jerry :D

@@NMSHAFKI samsies!

So where is the lithium?

💪🏼

Same thought. Obviously been cleaning up fir the show

Yes, this is where i should shine. Haha

I recommend checking out The Limiting Factor as well for some even more in depth videos of battery tear-down in a lab setting in a nitrogen fume hood so that the original materials can be preserved and detected. They have ordered a cell from Munroe to test the latest cells, as the one they tested was from Kato road many months back and not from Texas.

Any recent updates about 4680? I have the feeling things are nit going well…

@@dosso96 Believe it lost some weight.

Glad you enjoyed it!

A few? Only seen one myself.

​@@rogerstarkey5390 You're probably right, the only other real teardown is from The Limiting Factor. Others are all theoretical/graphical

Sandy is great, but hit expertise is final assembly. He will give way to the experts on individual components where needed.

@@culdeus9559 Exactly! I like having the expert to go over the details, then having someone (Usually its Sandy) to translate that into something a dummy like me can take away. Otherwise it is just technical speak for a very small group of people to really appreciate. Maybe it doesn't have to be Sandy, and maybe Munro doesn't really care about informing the general public about what is going on enough to spend the time and energy to do it for every single video, but from what I am understanding, Tesla is pulling off incredible feats of the future that I am excited about. It is hard to share that excitement with others who don't particularly know about it or care, when I can only share technical jargon videos with friends and family that they watch and just go "okay....?"

So that's basically the same battery you got your hands on? (NMC cathode with wet binding and anode with dry binding)

🤗👋 HI JORDAN…💚💚💚

@@budgetaudiophilelife-long5461 🤜🤛🤠

@@johntheux9238 Looks like it! Won't know until it gets tested.

You bet!

Glad you enjoyed it!

Our pleasure!

Glad you enjoyed it

Glad you like them!

... May have done something similar. No lathe though

Thanks Andrew

Yes we want 💥

Bingo. But enclosure is a factor as well. Are there standardized tests yet for intrusion from the road surface side? There was the case of someone sh00ting into the floor of his Model S, the pack didn't like that. is that risk greater with the pack having now only layer less between cabin and cells?

Hit one with a drill or axe (a charged one)

Love the last test, made me laugh! "throw-it-at-a-cybertruck test"

They are overplaying the danger. 4680 format is no more dangerous than others to take apart. Fake drama.

It's a big can - full of bandaids.

@@vidznstuff1 can you expand on that?

@@paullester2535 you will never get one from 🤡s

@@vidznstuff1 you can't just throw a statement out there with no explanation - I am not a Tesla fan boy but appreciate their tech

Thank you!

@@MunroLive keep up the great work!

Thanks for watching!

You're very welcome! Thanks for watching!

Welcome!

Thanks for watching Antonio!

🤗 MYSELF AS WELL…GREAT INSITES AS WELL 😁💚💚💚

Now if only it were able to offer cars 54% more range as promised. For now, the Model Y gets LESS range than with 3rd party 2170s. If the cell doesn't have significant advantage beyond theoretical cost (their 2170s never seemed worth expanding as they just imported whatever they could get their hands on, and all seemed cheaper and better than Giga Nevada cells), 4680 can't be used for Plaid+ and Roadster and be decently usable cars with the promised specs. No-one promised Roadster would be LIGHT, but with 200 kwh of these cells, that's already 720 kg of cells, likely 1000 kg for a pack all welded up, and only if record breaking for gross/net energy density. 54% more range on the Plaid would simple mean 50% more weight in the cells. Can the pack overheid be trimmed to compensate? Not so sure judging from Model Y being near identical weight for the 4680 but down on capacity and range, at least for now. Semi relies A LOT on energy density to get huge range and not ruin payload. Cyber with 500 mile range needs a 180-210 kWh pack as well. Or will they have a new process to make the steel exoskeleton end up super slick for aero? Worth developing for millions of trucks I guess, but Tesla tend to stumble a lot when innovating.

Panasonic was clearly brought back to do that.

@@vidznstuff1 Panasonic seemed (seem) rather eager to continue the relationship. It's essentially a license to print money.

@@vidznstuff1 Panasonic method is different. Tesla will continue to work out the dry process and among others to take the high volume production rate advantages associated with it.

Thanks Captain Eli

@@MunroLive big fan

Bro congratulated without watching the video

😁🤣

No one is going to delicately disassemble cells for recycling. The method is shred and separate.

Unfortunately there are multiple sizes of Pepsi can, so it doesn't help much. The dimensions are right in the name... got a ruler? The 355 ml (12 oz) cans in my refrigerator are 66 mm in diameter and 123 mm tall, so the 46x80 mm cells are about two-thirds as big in each dimension. The 4680 would ideally be a 133 ml (4.5 oz)... so even smaller than an 8 oz can but I'm not really familiar with that size.

a tab is a piece that sticks out.. just like browser tabs That for economies of manufacturing reasons in roll-to-roll production for efficiency purposes they spot/laser/etc. well extra strips ONTO the strips that form the rolls is not what makes them tabs. And when the tabs run for the whole length of one side of a strip they still are called tabs and it doesn't become tab-less. I also doubt that the cut ins for both the copper and aluminium base material have been done by laser.. a simple cut/shear wheel running over one side in the roll-to-roll process would do just fine.

Our pleasure!

Danger is minimal. People have been taking apart cells for years, no extra danger in the 4680 cell.

Come on people who pay sticker for their Teslas have been known to shag in the back seat while on AP, do some gaming while on AP, do maximum accelerations in narrow streets, etc. Munro are pros. Invested in the gear, and can dismantle bombs pretty much.

not to mention, all the Parts & Process elminated, toxic chemicals , eliminated, and the long ovens.

LOL….. it’s just additionalem machines to the already existing batteries assembly line nothing more

@@markplott4820 billshit!!! Toxic chemicals are still needed to make batteries stop talking crap!!!

xray spectrometer is elemental analysis...not composition

@@carholic-sz3qv it's less machines actually and it's machines built specifically for it. You make it obvious that you don't understand how complicated industrial processes are

I count (at least) 7 new processes to be perfected in this cell. Not even the "tradition manufacturers" have used them (they possibly still don't use them all?) When they *do* get this right it's going to be transformative . As for the comparison, we already know the previous stripdown used a "lower grade" cathode material (Below the 2170 standard) The jist I got from this is that it's upgraded. Sandy already said they were "surprised" by the performance of this iteration, it was better than expected. . Now consider they gave an indication of the composition, but it isn't absolute cutting edge(?) . That indicates there's a lot more scope for improvement.

It's not a heat sink

@@vidznstuff1 I said also makes a great heat sink, copper has many uses besides electrical conductivity and they need to make sure the heat can be transferred out of the cell

The point is, the short electrical path, up/ down to the tabs rather than along the whole length, reduces resistance, which normally causes heat. Therefore there's less, if any heat produced in the first place. Heat being energy, now not wasted the cell becomes more efficient. Implications for:- Efficiency of the cell (and pack). Heat stress reduction in the cathode / anode, improving longevity. Even temperature through the pack and reduced pack cooling required. Quite possibly faster charging (reduced throttling) ... As for the tabs, it's a conductor, normally electrical, but of heat if needed.

I agree. It's not tabless - it has a continuous row of tabs comprised of the conductive sheet material, rather than a small tab added-on.

Should be called All Tab.

This is the question in my head -- and I'm wondering why they've delayed talking about battery performance. Total speculation, but I imagine if Tesla really were sandbagging performance they might politely ask them not to reveal anything yet.

Jon, Was the "Jordan" cell a "1" and this is a "2"? This seems to have a dry cathode? (Maybe the one you speak of is a *3* ??)

@@rogerstarkey5390 Jordan's cell was a GEN 1. What makes you think that this is a DRY Cathode? I believe it is a wet process and doesn't have the POLYMER binder like the anode side which is holding togther much better.

Me two

Lucky you - the gigacastings are writeoffs if damaged. The cells are impossible to salvage, which makes cash recovery by insurance companies very poor -- watch for higher insurance rates.

I was split between this decision myself and then came to the conclusion that Cutting Edge" isn't always the best place to be. They have a lot of manufacturing processes to experiment with and work out and I needed a stable reliable car, even if they can fix most things with a software update. The 2170 is proven tech.

@@vidznstuff1 any Car would be a Writeoff with the damage required to get to the Castings..

@@unitrader403 Let the FUDs keep moaning, it's of little consequence 😉👍

It's a deep draw metal stamping, same as all cylindrical cells, but upside down.

@@JRP3 Thanks for the info. I watched some videos on the process, very cool that they can maintain good dimensional control, especially of the sides.. As you state, most batteries have the seam on the button end, so this one being on the flat end is very interesting. There must be a good reason for this.

@@satoshimanabe2493 They electrically isolate the bottom cap of the cell that way.

The body of the can is a cup with a hole at the end. They put the contact (surrounded by that insulator gasket) into the hole, then push the jellyroll into it. In the centre of the jellyroll there is a rod, which then clamps the aluminium collector plate to the contact before it is pulled out. Then the bottom plate is clamped on, which makes contact with the copper side.

Watch the Limiting Factor

@@rogerstarkey5390 Will do! and thanks for the tip.

I'm surprised how simple it is.

The 4680 form factor was co-developed with Panasonic, who will be releasing their own version of the cell. According to a battery industry insider, one helped BYD and CATL build their plants, Tesla isn't the only company developing new form factors and manufacturing methods and the difference is that they are far more public about what they're doing

​@@areituPanasonic are not using Tesla's tabless design but they are using more than 1 tab to try and mimic the effect while still doing what they are comfortable with. Also we'll have to see if they do dry battery electrodes as well since Tesla are still struggling with it, at least when it comes to the anode. Not sure why they wouldn't go with Tesla's design but it kind of shows they did not co-develop it.

Would like to a see a cylindrical vs rectangular cell comparison. Packaging, energy density, cell integrity, thermal distribution, etc.

@@NTNLabs elegant but not simple at all. A factory has to spit out millions of batteries so fast that you can’t see them moving.

Initial reports are that it's still in the 270 Wh/kg ballpark, perhaps on the higher side of that. Explains why the "OMG it's almost structural" Model Y is just barely lighter than the previous version, while having a lot less energy capacity and range. It it's 5.5 times larder than a 2170. If this costs less than 5.5x as much to product, they can try to make it worth there while NOT to simply buy LG cells like they have been. It gets interesting when they can make one of these for the price of 3x 2170, I guess. Apparently it can handle the energy demand cycles for a Model Y. I wonder whether it's ready to do the same for the Plaid. However, from the looks of things, it's NOT ready to bring Plaid and Roadster, even Semi and Cyber, the capacity they need, by lack of energy density.

I personally don't like amp hours because it implies that all voltage are the same. While many are, I don't like the premise that leads to the use of amp hours. YMMV.

​@@Cloxxki source for them buying LG cells they buy from a lot of makers but not seen proof of LG

@@alanrickett2537 I believe Giga Shanghai is using LG 2170 cells for higher end Tesla mod 3 and Y

@@Cloxxki You've got a surprise coming.tbey already said (weeks ago) "we were surprised by the cell performance" (It's not the same chemistry as the "Limiting Factor" cell)

you will , ONLY need 1 - 2 batteries to power LED light.

As I understand and can remember, it is virtually exactly what they predicted on battery day!