Tinker71
Well-known member
- First Name
- Ray
- Joined
- Aug 8, 2020
- Threads
- 82
- Messages
- 1,484
- Reaction score
- 1,967
- Location
- Utah
- Vehicles
- 1976 electric conversion bus
- Occupation
- Project Manager
- Thread starter
- #1
I know it was mentioned in the reveal over 2 years ago that the CT3 would have a double stacked battery. I guessing they were planning on many battery day upgrades at the reveal but I doubt they built it all in. I am really struggling with the double stacked design for the following:
1.) There would be a 80mm void minimum in the CT1/2. Unless the floor pan was different, which would probably require different castings.
2.) The shear is transferred from the skin of the battery through the honeycomb matrix. If there is a stacked pack, there will be some sort of collector plate between stacks that will disrupt the shear transfer.
3.) Any movement between the sheets of batteries would be very problematic.
4.) I could see a spot repair on a single sheet of batteries. Double stacked = twice the problem.
I am guessing there is enough volume with a single sheet of batteries to get 500 miles of range with the CT3 or close to it. The other models will simply have more honeycomb material between batteries or possibly a different chemistry. It shouldn't be that difficult to model, but beyond my current capabilities.
I suppose it would be possible to stack sections or portions of the battery using more conventional modules near the axles, under the seats or in the dashboard. I think they already do that on the S to some degree.
In summary I think there will be a fairly standardized structural pack across the models with add on modules tucked here and there on the CT3. What do you think?
1.) There would be a 80mm void minimum in the CT1/2. Unless the floor pan was different, which would probably require different castings.
2.) The shear is transferred from the skin of the battery through the honeycomb matrix. If there is a stacked pack, there will be some sort of collector plate between stacks that will disrupt the shear transfer.
3.) Any movement between the sheets of batteries would be very problematic.
4.) I could see a spot repair on a single sheet of batteries. Double stacked = twice the problem.
I am guessing there is enough volume with a single sheet of batteries to get 500 miles of range with the CT3 or close to it. The other models will simply have more honeycomb material between batteries or possibly a different chemistry. It shouldn't be that difficult to model, but beyond my current capabilities.
I suppose it would be possible to stack sections or portions of the battery using more conventional modules near the axles, under the seats or in the dashboard. I think they already do that on the S to some degree.
In summary I think there will be a fairly standardized structural pack across the models with add on modules tucked here and there on the CT3. What do you think?
Sponsored