Audi Q6 e-tron battery
The lithium-ion battery system of the Audi Q6 e-tron can store more than 100 kWh of energy and uses 800 volt system.
That is the only fact what we now at current time. There is no clear information if the 100kWh is net or gross, but based on the range stated for A6 e-tron the assumption is that it is net. It would be almost impossible to reach 700km range on a 100kWh gross battery.
Below you find some possible setups based on this information and the fact that Audi/Porsche/Wolkswagen use LC Chem on many other models.
800 Volt with LG Chem E78X
This scenario assume that PPE will use same battery cells as the MEB platform.
|Gravimetric energy density||265 Wh/kg|
On e-tron GT the battery configuration is 198s2p. Meaning 396 cells in total with 2 cells in paralell and 198 cells in serial. This is done with the LG Cell 66E cell.
If you use LG Chem E78X on the same configuration you get.
78Ah x 2 x 3,65Volt x 198 = 112.74 kWh Gross. This would mean a net capacity on 100-106kWh depending on the buffers that Audi/Porsche want to enforce.
On the MEB platform the setup is 96s2p or 96s3p. If you assume that Audi/Porsche does want to double it so it goes for 192s2p to get 800 volt you get.
78Ah x 2 x 3,65Volt x 192 = 109.34 kWh Gross. This would mean a net capacity on 100-104kWh depending on the buffers that Audi/Porsche want to enforce.
Based on the Q4 weight of the battery pack (493kg on 82kWh) the pack weight would be around 680kg. Litte less than current e-tron 55 pack.
800 Volt with LG Chem E66A
To get more than 100kWh you would then need to change to a 196s3p setup if voltage is kept the same. This is very unlikly. But will give
64.6Ah x 3 x 3,651515Volt x 198 = 140 kWh gross.
The battery would then be around 950kg heavy.