Lithium Depletion

L. David Roper
http://arts.bev.net/RoperLDavid/
20 December 2007

Lithium is an important metal. It is used to make modern batteries: Lithium-Ion and Lithium-Ion-Iron-Phosphate. The graph below shows the lithium extraction data for the world and two Verhulst function fits to the data in order to extrapolate into the future.


Lithium extraction rate for the world and a Verhulst function fit to the data.

The red curve is a fit with total amount to be extracted of 20,000x10^3 tonnes and the blue curve is for twice that amount.