Electrek got pictures of new lithium-ion cells or supercapacitors from Tesla's Roadrunner project. How great!

The American portal Electrek has published photos of Tesla's new cells / supercapacitors, which are allegedly being developed as part of the Roadrunner project. They appear to be much larger in diameter than the 2170 cells produced so far used in the Tesla Model 3. Our estimates indicate that they can be designated 4290 (42900).

Tesla's new elements / supercapacitors are twice the diameter, five times larger

We made the above estimates by measuring photos and comparing them to hand size, so they may not be accurate. However, Electrek confirms that the rolls are double the diameter of the 2170 mesh used in the Tesla Model 3 and Y.

If anyone has seen this battery before or if you have any information about it, please contact us. DM open or email [email protected] wickr: fredev pic.twitter.com/YxgCYY16fP

— Fred Lambert (@FredericLambert) September 15, 2020

Double diameter equals 2170 times the volume of the cylinder, but note that this solid appears to be even higher than link XNUMX. If our measurements are correct, The cell / supercapacitor in the photo above has a volume of about 5,1 times that of cell 2170..

It is unclear to what extent this figure will translate into the amount of energy that can be stored. A new shape can mean a new structure and chemical composition of the electrodes:

Probable structure of a new Tesla cell (c) Tesla

According to internet users, the markings visible on the case resemble those of the Maxwell supercapacitors (54 = 5,4V), so the cylinder can be a conventional or an improved supercapacitor. It can be a lithium-ion battery. Finally, it could be a hybrid system. Definitely Larger volume means longer anode + electrolyte + cathode tape can be wound inside at lower housing costs.

As a reminder, Tesla will work on low-cost, high-density cells as part of the Roadrunner project. They need to be welded, not connected with soldered wires. This should provide a higher energy density at the chassis level, i.e. the entire battery, including the container, electronics and cooling system.

Tesla expects it to produce up to 1 GWh / 000 TWh of these cells per year in the future.

> Tesla Roadrunner: redesigned, mass-produced batteries at $ 100 / kWh. Also for other companies?

Opening photo: (c) ELECTrek

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