Stan, Battery parameters; energy stored, mass, and volume are *all three* important determinants of electric vehicle range and economy. The "energy mass density" (J/kg) and "energy volume density" (J/m^3) limit the range, economy and cargo space of electric vehicles.
Lead-acid batteries, for example, are much inferior in both J/kg and J/m^3 than the lithium-ion batteries currently under development and beginning to be employed. e.g. Read about the Tesla, providing excellent performance in acceleration and range, but still very expensive, 100 + k$. Gene. ---- Original message ---- >Date: Wed, 18 Jun 2008 09:50:57 -0400 >From: "STANLEY DOORE" <[EMAIL PROTECTED]> >Subject: [USMA:41167] Re: Prius vs. Insight >To: "U.S. Metric Association" <[email protected]> > > It's not the mass of batteries vs. other forms > that's important, but the end result of electrical > propulsion - more equivalent miles per gallon of > fuel per unit of energy. > Stan Doore
