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Thread: Prius: Biggest user of rare earths of any object in the world

  1. #1
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    Prius: Biggest user of rare earths of any object in the world


    In summary from the article: "... Each electric Prius motor requires 2.2 lb of neodymium, and each battery uses 22-33 lb of lanthanum. That number will nearly double under Toyota's plans to boost the car's fuel economy"

    I think if you take into the account all the extra energy used to manufacture the exotic parts, the extra parts themselves, and you figure the kilowatts of electricity, and convert all that to BTU's, and then to gallons of gasoline. Divide that by the number of miles traveled in the projected life of the car - I bet that the MPG won't be any better than todays gasoline powered car.

    I'm guessing the batteries are expensive, and have a finite life. Would it be fair to say that a battery replacement for a 6 yr old electric car would exceed the price of the car?

  2. #2
    Administrator Ken's Avatar
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    Quote Originally Posted by dBrong View Post




    In summary from the article: "... Each electric Prius motor requires 2.2 lb of neodymium, and each battery uses 22-33 lb of lanthanum. That number will nearly double under Toyota's plans to boost the car's fuel economy"

    I think if you take into the account all the extra energy used to manufacture the exotic parts, the extra parts themselves, and you figure the kilowatts of electricity, and convert all that to BTU's, and then to gallons of gasoline. Divide that by the number of miles traveled in the projected life of the car - I bet that the MPG won't be any better than todays gasoline powered car.


    I'm guessing the batteries are expensive, and have a finite life. Would it be fair to say that a battery replacement for a 6 yr old electric car would exceed the price of the car?
    But it's Greeeeeeeeeeeeeeeeeeen!
    >
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    >
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    (Hidden comment, below, for fear of upsetting the gullible.)
    In fact it is nearly as green as the people who will buy it.

    Ken.
    Last edited by Ken; 09-05-2009 at 07:28 AM.
    Die dulci fruimini!
    Ken.
    Wolds Bikers, Lincolnshire, England.

  3. #3
    Ridin Dirty dom's Avatar
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    I do believe you are right about the mpg not being much better. I wish someone would do a nice pretty little study about it. You know, the kind with charts!

    "Tutto nello Stato, niente al di fuori dello Stato, nulla contro lo Stato "
    -Mussolini
    All within the state, nothing outside the state, nothing against the state.

  4. #4
    Senior Member Kwozzie1's Avatar
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    Just a feel good car.........for those who think they are green thinking

    Oh did I mention over priced
    Rex
    On the Sunshine Coast, in the Sunshine State Queensland (QLD), Australia

  5. #5
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    Real world gas mileage in Prius's drive normally is about 38-40 mpg in combined city/highway driving. For all of the compromises made, the results suck.

  6. #6
    Ridin Dirty dom's Avatar
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    That is freaking nuts! I get 44 mpg in my '94 Saturn.

    T

    "Tutto nello Stato, niente al di fuori dello Stato, nulla contro lo Stato "
    -Mussolini
    All within the state, nothing outside the state, nothing against the state.

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