When BMW AG revealed it was designing electric versions of its X3 SUV and Mini, the going rate for 21 kilograms of cobalt—the amount of the metal needed to power typical car batteries—was under $600.Only 16 months later, the price tag is approaching $1,700 and climbing by the day.When BMW AG revealed it was designing electric versions of its X3 SUV and Mini, the going rate for 21 kilograms of cobalt—the amount of the metal needed to power typical car batteries—was under $600.Only 16 months later the price tag is approaching $1,700 and by the day. [more...]
