By | September 07 2012 4:55 PM

Growing global demand for electric cars like the Tesla Model S and Ford Focus Electric could drive demand for lithium up by as much as 20 percent per year, benefiting chemical and mining companies such as the FMC Corp. (NYSE: FMC), Rio Tinto PLC (NYSE: RIO) and Rockwood Holdings Inc. (NYSE: ROC), according to a Standard & Poor's Capital IQ report Friday.