- First Name
- A. J.
- Dec 8, 2019
- Reaction score
- Tesla X LR+, Lexus SUV, Toyota SR5, Toyota Landcruiser
- EE (Retired)
I think you've missed the point. The new cell architecture reduces the amount of heat produced per ampere pushed in by reducing the effective internal electrical impedance of the cell while at the same time making it easier to remove the heat that is produced by reducing the thermal impedance.No, the overall charge rate of the 4680 is roughly the same as the smaller cells due to the need to remove more internal heat.
Nonetheless I don't think the charging speed will go up dramatically. Tesla seems to run about 1C average and I don't expect that to increase to more than, say 1.4C which I will be the first to admit is a WAG and I think that will be limited by SEI reactions rather than heat concerns. After all the pack will need to discharge at higher rates than it charges at and heat has to be disposed of then.