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Thread: 120 KWh batter in 2014?

  1. #11
    Leeroy Jenkins sublimaze1's Avatar
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    What we can be sure of, is that if Elon et al is strategizing a 93, 125, or whatever KWh pack ... until it is finished, nobody will know as it is this kind of proprietary work and secrecy that must be maintained in order to keep Tesla flowing forward.

    Now, I am not saying that AsiaTech123Specialties.com (for example) isn't also working on non-OEM batteries concurrently (which actually might not be a bad thing), just that Tesla has been ultra tight lipped about battery technology from the start.

  2. #12
    The additional weight of the batteries to make 120 Kwh pack may vey well be less than 400 miles. We may very well negate the effects of the extra batteries. The weight could also effect the 0-60 time etc.

  3. #13
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    Pros:
    - Quicker supercharging (or at least the charger will be able to stay at 90kWh longer
    - More power can be drawed from the batteries=better performance
    - More range

    Cons
    - Higher price
    - More weight (probably)

  4. #14
    Senior Member dpeilow's Avatar
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    Quote Originally Posted by Oyvind.H View Post
    Pros:
    - Quicker supercharging (or at least the charger will be able to stay at 90kWh longer
    - More power can be drawed from the batteries=better performance
    - More range
    You can't be sure of the first two, because the higher energy density cells might have lower power density.

    They are also still very expensive compared to the last generation in the same numbers Panasonic NCR18650B 3400mah Batteries (Box of 180)



  5. #15
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    Quote Originally Posted by dpeilow View Post
    You can't be sure of the first two, because the higher energy density cells might have lower power density.
    Sorry, should have specified that my assumptions were based on the ability to squeeze more of the current cell type into the car, not using new versions of currenc chemistry/new chemistry.

  6. #16
    Member aronth5's Avatar
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    Quote Originally Posted by dpeilow View Post
    You can't be sure of the first two, because the higher energy density cells might have lower power density.

    They are also still very expensive compared to the last generation in the same numbers Panasonic NCR18650B 3400mah Batteries (Box of 180)
    Interesting. Well at least the 18650B's shows a price decrease from $1,995 per box of 180 to $1,795 per box.
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  7. #17
    Senior Member stopcrazypp's Avatar
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    Quote Originally Posted by dpeilow View Post
    You can't be sure of the first two, because the higher energy density cells might have lower power density.

    They are also still very expensive compared to the last generation in the same numbers Panasonic NCR18650B 3400mah Batteries (Box of 180)
    From the same website, the retail cost for NCR18650B is $1995 for 180, discounted to $1795. The NCR18650A is $1595 for 180. So even for the discount price, the cost is 1.125x the cells in the Model S. Given the new cells are 1.097x the capacity, the price is higher for the new cells on a per kWh basis. I suspect in two years though, they will be made in larger numbers and the per kWh pricing will be cheaper (esp. with the bulk buy Tesla will get).
    Because there are tons of crazy people in this world...

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