http://www.theaustralian.com.au/bus...o/news-story/077090082bb802b4cd0426a0e5c12b6a
"
The global lithium market stands at a mere 260,000- 300,000 tonnes. With every electric car consuming an average 45kg of the metal, it’s not clear where Elon will obtain the requisite lithium to fill his order book."