The amount of lithium in a Li-ion battery is not that much, roughly 500g/kwhr. So a 10 kW Tesla Power Wall would contain about 5 kg of lithium. We can make 2.6 billion Power Walls… and E. Musk said at the launch that 2 billion would be enough to convert the entire planet’s energy usage—including industry and transport—to renewable electricity.
Yes, there is.
http://en.wikipedia.org/wiki/Lithium#Terrestrial gives reserves of 13 million tonnes, ie 13 billion kg. I think these are “proven” reserves, ie economical to mine at current prices.
The amount of lithium in a Li-ion battery is not that much, roughly 500g/kwhr. So a 10 kW Tesla Power Wall would contain about 5 kg of lithium. We can make 2.6 billion Power Walls… and E. Musk said at the launch that 2 billion would be enough to convert the entire planet’s energy usage—including industry and transport—to renewable electricity.