Which is better 4680 battery or 21700 battery

What is the difference between a 2170 and a 4680 battery?

Despite its larger size, the 4680 pack delivers slightly less overall energy capacity—about 67 kWh versus the 2170’s 75 kWh—yet offers strategic advantages in cost, integration, and vehicle structure. The 2170 cells are supplied by Panasonic, whereas the 4680 cells are developed and manufactured in-house by Tesla.

What is the difference between a 21700 and a 4680 cell?

The 4680 cell has more than five times the volume of the 21700 format. Large-format cylindrical cells are also expected to reduce production costs in pack assembly because fewer individual cells are needed to be assembled and interconnected to achieve the same battery pack energy.

How big is a 21700 battery?

So, the 21700 label indicates a battery cell that is 21 mm in diameter and 70 mm in height (the last digit is there to indicate other potential modifications of the cell; Tesla has completely omitted this last digit in their naming convention for 4680 cells). Figure 1. Dimension differences between 18650, 21700 and 4680 cells.

What is the difference between a 2170 and a 4680?

Despite having fewer cells, the 4680 pack includes 56 kg of cell can material—compared to 52 kg in the 2170 pack. Why? The 4680’s can is substantially thicker, a necessity due to its structural integration into the vehicle.