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Elon Musk @elonmusk - Tesla battery cell production is getting good
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Ming @tslaming - BREAKING @Tesla HAS ENGINEERED A SYNCHRONIZED MULTI-ROLL CALENDERING MACHINE THAT USES DIFFERENTIAL ROLLER SPEEDS TO EFFORTLESSLY TURN DELICATE DRY POWDERS INTO CONTINUOUS BATTERY ELECTRODES
For years, mastering the "dry battery electrode" has been the holy grail of Tesla's manufacturing roadmap. The promise was always massive: eliminate the toxic, energy-guzzling drying ovens used in traditional battery making, drastically shrink the factory footprint, and slash production costs.
But handling delicate, dry chemical powders at industrial speeds has proven incredibly difficult. Early attempts relied on brute force, crushing the powders with immense pressure just to get them to stick together—a process that was hard on both the machinery and the materials.
Now, it appears Tesla has finally cracked the code, replacing that destructive pressure with an elegant mechanical dance.
The secret to this manufacturing breakthrough lies in rotational physics rather than brute force. By programming each successive roller in their new lamination machine to spin slightly faster than the one behind it, Tesla creates a gentle shear force that pulls the dry powder along.
This clever manipulation of speed eliminates the need for the massive pressures and thick, free-standing films that previously held back dry battery manufacturing.
These exact mechanics are laid out in patent US20260066263A1, which was published on March 5, 2026, under the title "System and methods for manufacturing a dry electrode." This document gives us an unprecedented look at how the company intends to scale up its next-generation energy storage products without relying on outdated wet processes.
[more]
https://x.com/elonmusk/status/2030197628005122329

Elon Musk @elonmusk - Yup
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