The copper you see are the tabs for the neg there’s loads of thin ones down the coil length instead of 1 that’s in most cilinder li ion. Think of it as a hybrid between 18650 and poutch cells. All in the aid of reducing the IR and increasing the heat dissipation to improve the cells life.
Tesla notes says 5.5x the volume of the 2170 6x the output power resulting in 16% more range.
@Battery_Mooch ratings for the 2170 Tesla cells
Making the 4860 a 60A discharge witch is low output power compared to volume.
As a direct comparison of P42A 5.5x25A=137.5A output power.
Yes it’s a clever new manufacturing aprotch that I hope can be applied in some way with out infringing the copy rights that can improve the construction method and lower IR of other cells with hi discharge chemistry. This could make some incredible hi discharge current cells.