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Tesla specifically announced that it will continue to source cells for its battery packs from multiple suppliers, and that the new Panasonic cell will be compatible with other cells and components.
"These cutting-edge Panasonic batteries will combine with Tesla's battery pack technology to produce the highest-energy density EV battery packs in the world," JB Straubel, Tesla chief technology officer said when being presented with the battery by Panasonic Energy Company president Naoto Noguchi.
Panasonic's factory in Suminoe, Japan has the capacity to produce 300 million cells annually. That would be enough for over 48,000 battery packs of the type used in the Roadster, each of which contain 6,183 cells. The new, higher-density cells should allow the use of smaller packs with fewer cells without sacrificing capacity.
These cutting-edge Panasonic batteries will combine with Tesla's battery pack technology to produce the highest-energy density EV battery packs in the world
I thought the energy output would be higher resulting in > 275 mile range for the same # of cells.A direct replacement of the 2.9 Ah cells in the current Roadster battery pack with these new 3.1 Ah cells would mean 261 miles range instead of 240 miles range. Every little bit helps.
A direct replacement of the 2.9 Ah cells in the current Roadster battery pack with these new 3.1 Ah cells would mean 261 miles range instead of 240 miles range. Every little bit helps.
So if that's the case, 3.1 Ah cells would mean a 29% improvement.
You're right, not 2.9. So are they using 2.4 or 2.2 Ah cells in current packs? Some posts on the Tesla blogs say 2.2 Ah. TMC forum search is failing me.The cells in the current Roadster battery pack got locked down a while ago and I think those are 2.4 Ah cells. So if that's the case, 3.1 Ah cells would mean a 29% improvement.
The cells in the current Roadster battery pack got locked down a while ago and I think those are 2.4 Ah cells. So if that's the case, 3.1 Ah cells would mean a 29% improvement.
Would these new cells also be 29% heavier?
No, but maybe a gram. The 3.4 Ah coming next year will be 2 grams heavier than the current 2.9 Ah, according to Panasonic. With 6831 of them, that amounts to an extra 40 pounds. Not a big deal.Would these new cells also be 29% heavier?
You're right, not 2.9. So are they using 2.4 or 2.2 Ah cells in current packs? Some posts on the Tesla blogs say 2.2 Ah. TMC forum search is failing me.
What I took from the news today was the Model S will get this new technology thus put tingTesla right on target of their stated ranges. Also that the S is still a go.