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The EVcast is a podcast dedicated to bringing consumers the latest information on electric vehicles in a non-technical, non-political, and entertaining way.
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May 2008 Posts
Interview with Jack Kuntz from AMPTRIAC.. fact or fiction?Th!nk is coming to AmericaHybrid Technologies enters the marketEEstor. Can it be true?Listener feedback and questions
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That was a great broadcast and you are correct about EEstor if the numbers come in like they say, it's a world changer. I constantly cruise the web searching for new info on this ultracapaciator which I believe the electric car will fly or die on. I believe they have squeezed about all the juice they can get out of li- batteries and they are coming in too expensive and labor intensive. If the EEstor battery turns out to be a pipe dream all eyes will start focusing on hydrogen.
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I don't think you should use the wording fly or die on. Without EEstor, Zenn will probably use Lithium Ion. Lithium and NIMh is hugh new technology to drive EVs 200 mile range and farther.
Also imho Hydrogen has been a boondoggle. The cars are expensive and the efficiency of converting fossil fuels to hydrogen into a fuel cell back into electricity is wasteful compared to just storing electricity on the car with a chemical battery. Hydrogen is just another battery technology, it is not an energy source.
Based on the last qustion I did some quick seaching on the internet without references:
impact 130 w-Hr/mile, truck 350 W-Hr/mile, prius 250 w-hr/mile, GMVolt 200 w-wh/mile, BugE 170 w-hr/mile, Tesla 177 w-hr/mile, GM EV1 115 w-hr/mile.
Then I searched lithium batteries, wikipedia list many Li chemistrys at 300 w-hr/kg. Then I did random search and came acroos lithium polymer and lithium air batteries in the lab with 300-5200 Wh-Mi. Then I came across polyplus that expects to deliver 4000 w-hr/kg cells. What does that mean? Say you have a 500 kg pack in your Prius, you would have range of 8000 miles.