Nickel extraction rate for the world and a Verhulst function fit to the data.
L. David Roper
http://arts.bev.net/RoperLDavid/
20 December 2007
Nickel is an important metal. It is used to make modern batteries: Nickel-Cadium and Nickel-Metal-Hydride. The graph below shows the nickel extraction data for the world and two Verhulst function fits to the data in order to extrapolate into the future.
Nickel 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 150,000x10^3 tonnes and the blue curve is for twice that amount.