Tesla finally solves 4680 dry cathode process

[Mini2nut]

Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.

https://www.teslarati.com/tesla-confirms-finally-solved-4680-battery-dry-cathode-process/

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[henchman24]

FWIW these cells have been in the CT since the fall. The Y is getting them in the 8L battery, which confirms they are slightly more than 26ah cells. Pretty large progress over the gen 1 Y 4680 that was about 23ah. A bit over the early Cyber cell that was tiny bit under 26ah (25.8-25.9ish).

 

[acey]

Same range as old cells?

 

[henchman24]

Same range as old cells?

There's no significant difference.... ~1%. Where manufacturing variation and any slight degradation make it essentially zero. LG (excluding newer M53 cell vehicles) and Panasonic pack 3/Ys have a larger variance between them (~3kWh).

 

[Travis64]

I wonder if they still suck in the cold

 

[CyberGus]

I wonder if they still suck in the cold

All batteries suck in the cold, except for those Donut dry-electrode unicorns made of rainbows and unobtainum.

 

[Travis64]

All batteries suck in the cold, except for those Donut dry-electrode unicorns made of rainbows and unobtainum.

Nope my model 3 was 10x better then cybertruck in the cold

 

[Outdoors]

Only thing worse than a cold soaked CT is a cold soaked Chevy Silverado EV.

I will say that smaller batteries tend to warm and use the amount quicker and charge faster. Big packs not so much.

 

[Sposborn]

Nope my model 3 was 10x better then cybertruck in the cold

I actually have been pretty happy with -15 wind chill days and my CT. My experience has been roughly the same between my 24’ awd cybertruck and all 3 of my past model 3s and my wife’s current 25’ MYP. What have you been seeing on yours?

 

[henchman24]

The 955 CT cells (early ones) are worse than the 3/Y cells in the cold. They don't really like to charge below freezing and at 5-10-15f there is a noticeable difference. You'll see the snowflake a lot more in those (any time pack is below 45-50f). The new cells are 973 chemistry which pushed the manganese up to a tad above 7% and the cobalt below three. Manganese in this style of cell is helps the thermal window and at that percentage, should get a lot closer to the current 3/Y cells... probably a bit short of that thermal window.

The 955 cells act like a midpoint between 811 cells and typical LFP chemistry in how they behave in the cold.

 

[BlueLightning]

It was only to boost stocks…. been five year, need another boost!

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