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Thread: GM's got a new car battery on the horizon...

  1. #1
    Flashaholic* ChrisGarrett's Avatar
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    Default GM's got a new car battery on the horizon...

    http://gizmodo.com/5889295/new-elect...and-halve-cost

    "Well, this is an exciting bit of news for green drivers. Envia Systems has come up with a new battery technology that could give a $20,000 electric car a range of 300 miles to a charge. Yes, please?

    The General Motors-backed Envia Systems has come up with a new process that creates a battery with an energy density of 400 watt-hours per kilogram. To put that in perspective, the lithium cells found in most electric cars today only pack about 100-150 Wh/kg. Even the batteries on Tesla's forthcoming Model S only pack in around 240Wh/kg. In terms of cost, when it was first produced, the Nissan Leaf's battery cost around $375 per kilowatt-hour. The Envia battery is projected to cost just $125 per kilowatt-hour.

    The new magic comes from combining a "High Capacity Manganese Rich (HCMR)" cathode and a silicon-carbon nanocomposite anode, and then passing the lithium ions though a new, secret electrolyte formula (Powerade? Probably Powerade) that allows for increased voltage."

    Kind of neat. Looks as if the Navy has tested and confirmed this, as well.

    Chris

  2. #2
    Flashaholic* tobrien's Avatar
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    Default Re: GM's got a new car battery on the horizon...

    nice! i wonder how long till this stuff is feasible for our lights? hmmm
    aka Edgar Allan Bro, Brosama Bin Liftin, Walter Crunkite, Bro Namath, Teddy Brosevelt, and the Tomahawk Crunkmissile.
    my lights - review of PrecisionWorks - that's Gucci Mane in my avatar

  3. #3
    Flashaholic Surnia's Avatar
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    Default Re: GM's got a new car battery on the horizon...

    isn't that part of Panasonic's roadmap though as well though? They're pushing Ni cathodes and C anodes, then switching to an Si Alloy for their 4.0Ah 18650s as posted here. Granted Envia is using a Manganese cathode....

  4. #4
    *Flashaholic*
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    Default Re: GM's got a new car battery on the horizon...

    I wonder what the cycle life is? The cost and energy density sound great though.

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