Can you provide your source?
Because I certainly can’t find it?
Elon Musk expected to tout 'million-mile battery.' Here's what that means
Who is/will be the 1st TTR member to drive Electric Semi-Truck?
Discussion in 'Ask An Owner Operator' started by merv85, Oct 25, 2022.
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Several news articles, but yes I was unable to find it on their website. Also pointing to their car battery packs shows just how desperate and afraid of change you really are..... -
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Like I said said, it's so sad you are so delusional. -
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D.Tibbitt Thanks this.
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There is some data here on Tesla car battery pack longevity:
Tesla data shows battery degradation is limited but not all packs are created equal
Couple of things to note:
This is “old” data. Tesla keeps track of their battery performance in EVERY CAR THEY HAVE SOLD. Tesla is known for being obsessive about improvements, continuous improvements. They have already used this data and iterated two or three times to capitalize on strengths and eliminate weaknesses. It’s not Paccar or Daimler milking a motor for 20 years.
From the graph in the article we can see that generally, battery packs in Tesla easily retain 80% of the original battery capacity past 200K miles and that degradation is virtually nil at that point. If we think of that in charge cycles, it’s not unreasonable to assume that the semi would be at 400K at the same number of charge cycles because it’s range is roughly twice that of a car.
Another point. There is no such thing as “the Tesla batteries”. They make the nickel-cobalt- aluminum in 18650 cells, but they also use that chemistry in the larger 2170 cell configuration.
They also make a LFP (lithium iron phosphate), which uses the 2170 cell size. LFP is a less energy dense chemistry, but it is very robust, long lasting.
Then there is the new, larger 4860 cell now used in Austin for the model Y. The 4860 cell is larger and more energy dense. And is just coming into commercial scale production. In Austin, where the Tesla semi is being produced…….
Logic would seem to lead to the conclusion that the Tesla Semi has been waiting on the 4860 cell to become available because battery energy density is such a big deal in trucking. The timing sure seems to match.
So we know that based on the record of the Tesla car batteries we can easily expect 500K from a pack, but the new 4860 cell has no public track record yet.D.Tibbitt, Jubal Early Times and gentleroger Thank this. -
One big difference in battery packs is how much harder they’re going to be used in the truck. That’ll surely impact longevity.
Meanwhile, let’s keep turning a blind eye to the toxicity and inhumane treatment of those procuring the resources to manufacture these “green” batteries. Let’s turn a blind eye to the amount of energy necessary to manufacture these “efficient” batteries. Let’s turn a blind eye to taxpayer dollars being used to prop up this industry.Siinman, D.Tibbitt, JoeyJunk and 1 other person Thank this. -
D.Tibbitt, Accidental Trucker, JoeyJunk and 1 other person Thank this.
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