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New battery cells for model 3

Discussion in 'Model 3' started by tsla007, Jul 25, 2016.

  1. tsla007

    tsla007 Member

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    Tesla’s gigafactory will be the first ever to make a new format of battery—a 21/70, rather than the 18/650 that the auto maker uses today for the Model S and Model X. The latter cylinder-shaped battery is commonly used in portable electronics and has been used by Tesla since the beginning. The numbers stand for the width and length in millimeters.
     
  2. tsla007

    tsla007 Member

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    Also, Tesla has doubled the amount of people constructing the “gigafactory,” which sits on more than 3,000 acres near Reno. Now, 1,000 workers build seven days a week on two shifts in an effort to start churning out lithium-ion cells by early 2017.
     
  3. JeffK

    JeffK Active Member

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    It looks like you're talking to yourself...


    it's a 20700 battery I think the WSJ article you pulled that from is incorrect.
    Also the real thread regarding this article is:
    Some details of new battery at WSJ article
     
  4. strykeroz

    strykeroz Member

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    That link doesn't appear to show a 21700 cell. Will they be the first to make these at the gigafactory, or have others (including Samsung, in this story ) already shown this form factor to be useful?
     
  5. JeffK

    JeffK Active Member

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    Samsung is making a 21700 yes... but the Gigafactory will be 20700 batteries.

    Elon Musk on Twitter

    I'm not sure why he posted a link to a CR2 battery.
     
  6. strykeroz

    strykeroz Member

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    Thanks for clarifying. For the sake of my model 3's 2nd battery pack I hope the world has settled on a standard in the next decade. Two only 1mm different in one dimension appears unnecessary.
     
  7. JeffK

    JeffK Active Member

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    There's no reason to settle on a standard... even within the same form factor there are differences in cell chemistry. Not all chemistries are appropriate for automotive applications either.

    We've always had a wide variety of cell types and form factors.

    [​IMG]
     
  8. JeffK

    JeffK Active Member

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    Well, I guess they changed their minds about 20700 ... According to the WSJ article author and his interview with JB they are using 21700 cells!
     
    • Informative x 1
  9. WarpedOne

    WarpedOne Supreme Premier

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    Why the obsession on 'standards'? What is the profit?
     
  10. strykeroz

    strykeroz Member

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    Being completely pragmatic a lot can happen in 10 years. Having a range of options for the next battery pack seems like a good outcome for improving the resale and second life of our model 3. If we get stuck with a pack made of cells that are not widely adopted the options we have will be limited, and relatively expensive.
     
  11. eSpiritIV

    eSpiritIV Member

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    Whatever form factor they choose, it will have higher energy densities, and fit in the M3 and all other cars by tweaking the battery holder size.
     

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