Sparky
Member
I just googled the article title.
Kevin Gallagher, a chemist and researcher at the Department of Energy's Argonne National Laboratory, said auto makers are spending about $500 a kilowatt hour on battery packs. ....
Tesla Chief Technical Officer JB Straubel says the company's battery costs are half or even a quarter of the price of the industry average, partly because of the company's strategy to use thousands of commodity battery casings rather than the specialized batteries that GM and Nissan use.
"The battery prices in the Model S are substantially lower than what everyone expects today," he said in an interview. Mr. Straubel expects the energy density in Tesla's batteries will increase by more than 20% by the time Tesla's mass-market car comes out in about four years