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Charge an EV in minutes rather than hours?

Discussion in 'Battery Discussion' started by pete8314, Aug 14, 2012.

  1. pete8314

    pete8314 Vendor

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  2. hvb

    hvb Member

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    Seems to be a bad link.
     
  3. Robert.Boston

    Robert.Boston Model S VIN P01536

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    Let's do math!
    Typical EV battery = 24 kWh
    Energy rate to fill in 1 min = 24*60 = 1,440 kW
    Assumed charging voltage = 400 V
    Current = 3,600 A

    I guess I'll need to spend more time lifting at the gym if I'm going to be able to handle that cord!
     
  4. GSP

    GSP Member

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    I will bet that EVs will not need to offer 3000 mph charging, like gas and diesel cars do.

    90 kW fast chargers offer 300 mph charging, and this is all that is required. With a few minor adjustments in trip plans, 300 mph charging will match the endurance of almost all drivers, and it will be more grid friendly and less costly as well.

    GSP
     
  5. Zapped

    Zapped Model S - PURE EV

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    Would the Nikola Tesla Coil help here ?
    To bad we haven't figured out how to harness lightning ( or create and capture it )
     
  6. jkirkebo

    jkirkebo Model S P85+ VIN 14420 EU

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    Yeah, that would only work with much higher voltage batteries. Say a 6kV battery, then the current drops to 240A. But then you need a 6kV certified connector and really good cable shielding ;)

    A 5 minute recharge and a 1000V battery might actually work. That is 288A.

    Thankfully, DC doesn't need as big a cord as AC.
     
  7. vfx

    vfx Well-Known Member

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  8. JRP3

    JRP3 Hyperactive Member

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    Seems like it's the old ACP system that Tesla originally used. Also, since charge time is limited by battery chemistry their claims are misleading.
     

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