Oakdene Hollins Research & Consulting provide this report on Lanthanide Resources and Alternatives.
Rare Earths are a group of metals which have
many high-technology applications. The current
generation of hybrid and electric vehicles and wind
turbines uses substantial quantities of Rare Earth
elements in the form of high-strength magnets and
rechargeable batteries. The key Rare Earths used
for these applications are neodymium, dysprosium
and terbium (for the permanent magnets) and
lanthanum (for the batteries).