| http://www.w3.org/ns/prov#value | - My guess is that if applied today???s costs of cobalt, nickel, lithium, lithium salts, plastics, copper, graphite, and other constituent materials that make up a cell, the material cost in November 2009 compared with May 2000 have increased by more than 150% and a current estimate of the materials used in the Argonne labs report will show cost of about $3 per cell versus $1.28 back in May 2000.
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