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Does anyone know if Tesla has commented on

Discussion in 'Model S' started by Mark77348, Sep 18, 2017.

  1. BluestarE3

    BluestarE3 Active Member

    Apr 2, 2016
    They'll gain more credibility and serious attention among EV manufacturers when they get their promised quick-charge smartphone battery out.

    While on the subject of a larger company investing in or buying out a battery startup, has anyone heard anything lately about what going on with Dyson's Sakti3 battery unit?
    • Like x 1
  2. KarenRei

    KarenRei KarenRei KarenRei KarenRei KarenRei KarenRei

    Jul 18, 2017
    Priority #1: cost per kWh.
    Priority #2: longevity, because it directly relates to #1 via DoD / required pack sizes to minimize cycling.

    Fast charging comes in at #3 or #4, depending on where you place safety (since safety issues can be somewhat ameliorated by smart pack design to contain cell failures). But at least it's above energy density, which everyone focuses on for some reason. Particularly gravimetric energy density, which is the least important aspect of batteries these days (it's volumetric that determines how many you can put into a car. Weight is not a problem with today's li-ion vehicles; it'd be nice to have them lighter, but it's not that big of a deal).

    And of course, having a high ion mobility on its own isn't enough to have a fast-charging EV. I mean, it's great for cell phones, but with cars you have A) serious supply issues, and B) serious heat dissipation issues. They're certainly addressable, but it requires serious engineering work that doesn't just happen overnightþ
    • Informative x 2
    • Like x 1
  3. Tiger

    Tiger Member

    Oct 31, 2016
    No comments from Tesla, but we can sure speculate on their behalf ;)
    • Like x 1
  4. Electroman

    Electroman Active Member

    Aug 18, 2012
    Dallas, TX
    .. and don't forget Enviasystems, who conned GM into investing in them on fake promises.

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