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4680 Cathode & Anode discussion for investors

Discussion in 'TSLA Investor Discussions' started by Buckminster, Sep 24, 2020.

  1. Buckminster

    Buckminster Active Member

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    Cathode includes spheres of polycrystal Nickel:
     
  2. SwTslaGrl

    SwTslaGrl Member

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    Tesla’s 4680 Battery Pack: Detailed Analysis
    "The photo we are analyzing was posted on Electrek without any sourcing, and it may be proprietary. Therefore, we can’t show it here. But please don’t tune us out. Follow the link to have a look, and then come back here for our detailed analysis. It really is a fascinating story."
    First Photo Of Tesla’s 4680 Battery Pack: Detailed Analysis
     
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  3. Buckminster

    Buckminster Active Member

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  4. Buckminster

    Buckminster Active Member

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  5. Buckminster

    Buckminster Active Member

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  6. MC3OZ

    MC3OZ Active Member

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    #26 MC3OZ, Mar 3, 2021 at 8:40 PM
    Last edited: Mar 3, 2021 at 9:00 PM
    Here are Jordan's numbers on raw materials cost for various types of batteries:-

    • LFP – $8 kWh
    • Liquid Metal Cell – $17 kWh
    • Vanadium – $20 per kg- not sure how many kWh (10-20 wh/kg)
    • High Nickel – $25 kWh
    • LCO – $50 kWh – Lithium Cobalt Oxide.
    Of course the manufactured cost is different to the raw material cost.

    The Powerwall is Nickel-Manganese - my guess $18-$20 kWh

    Jordan states ( and I agree) LFP is currently to heavy and bulky for Powerwall.
    Eventually LFP will be a great option for home energy storage, but that may take some R&D and/or product redesign.

    Here is some interesting R&D:- UCLA team uses graphite to boost performance of lithium iron phosphate cathode materials

    Finding a way to improve the energy density of LFP batteries while retaining the great cycle life and low cost, would be game changing.
     
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