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Teslamotors tweets: CNBC reports 400 mile battery in the next 3-4 years

Discussion in 'News' started by Norbert, Jan 23, 2012.

  1. Norbert

    Norbert TSLA will win

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    @Teslamotors tweeted (and thereby endorsed ;) :

    Read on @CNBC why Tesla is poised to make "range anxiety" a thing of the past. Phil LeBeau's Behind The Wheel - CNBC


     
  2. jcstp

    jcstp Active Member

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    interesting!
     
  3. Eberhard

    Eberhard #421 Model S #S32

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    replace the current battery pack for the roadster with 2300mAh cells with 4000mA cells. the battery pack may have 30kg more weight but 80% more range, even with the 3400mA it can be done.
     
  4. tdelta1000

    tdelta1000 Active Member

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    What type of battery technology could make this possible within 3-4 years? None the less it is an interesting article.
     
  5. bonnie

    bonnie Oil is for sissies.

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    I'm sensing an extended range Roadster battery in my future.
     
  6. jcstp

    jcstp Active Member

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    of what i understand, panasonic comes with a better batterycells this summer 4kv in stead of 3.4kv
     
  7. ckessel

    ckessel Active Member

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    The "25% in each of the next 5 years" puzzles me since Elon has said in various interviews something like 8% gradual improvement per year.
     
  8. AnOutsider

    AnOutsider S532 # XS27

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    They may be exaggerating, but if we suppose that what Tesla said re: them being able to make a pack bigger than 300 right now as truth, then it's possible they're already able to do 380 or even 400 right now, but a gradual reduction in price (and more efficient packaging) over the next couple of years could make it palatable from a financial perspective.
     
  9. Eberhard

    Eberhard #421 Model S #S32

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    #9 Eberhard, Jan 24, 2012
    Last edited: Jan 24, 2012
    The cells in the roadster current pack weight 300kg only plus 150kg for the pack, including the steel shell for each cell. if the new nickel based panasonic cells are more safe, than weight can be reduced or to add more cells without sacrificing safety.
    400miles can be done for the roadster with the current panasonic cells right now.
     
  10. Citizen-T

    Citizen-T Active Member

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    That line was a bit confusing. I think they meant that prices would reduce by 25% every 5 years. So 25% by 2017 and 43.75% by 2022. So not each year of the next 5 years, but each group of 5 years.
     
  11. Norbert

    Norbert TSLA will win

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    25% per group of 5 years would not only be a very uncommon way of putting it, but also correspond to only 5% per year (or 6%, depending on whether it is meant inside or outside of 100%). But we know that Tesla was only recently referring to 7% to 9% per year for the $/kWh number.

    The bracketed addition "in each of the next five years [i.e., to around $225/kWh in five years from today]", specifically the "to", does imply they meant 25% each year. Of course, that doesn't mean that they understood correctly what Tesla said, as 25% per year does sound too high.

    Whereas going from a 300 to a 400 mile range in 3-4 years sounds very reasonable, and corresponds to a yearly improvement of 7.5% to 10%.

    Regarding the price, possible might be, for example, 25% next year (only, then less), and to around $225/kWh in 5 years. In fact, A123 is expecting an exceptionally strong price drop in the next year. There might be some "low hanging fruit" as manufacturing scales up in the coming year(s).
     
  12. tdelta1000

    tdelta1000 Active Member

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    I see.... I forgot that TM and Panasonic were in a partnership for battery advancement. thanks for the info.
     
  13. jcstp

    jcstp Active Member

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    Twitter said

     

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