Diversifying lithium supply from brines to hard-rock minerals: mechanochemical extraction of lithium at low temperature (MELLT) from α-spodumenes

CMI researchers from Ames National Laboratory conducted the activity for this highlight

Innovation 
Mechanochemical process to extract 85%+ of lithium available in domestic hard-rock ore diversifying lithium supplies.

Achievement
The MELLT (Mechanochemical Extraction of Lithium at Low Temperatures) technology is a 2024 R&D 100 Finalist, an honor that highlights it as one of the most innovative technologies of the year. Of 141 cutting-edge projects selected worldwide, MELLT stood out for its exceptional potential to revolutionize the extraction of lithium from domestic hard-rock ore. 

Significance and Impact

  • Eliminates the high-temperature thermal-decrepitation step,
  • Replaces harsh acid/alkaline solutions with mild alternatives, and
  • MELLT offers a viable alternative to traditional energy- and waste-intensive methods, greatly reducing energy costs.

Hub Target Addressed 
Recovery and conversion of critical minerals into high-value end products; industry adoption of technology for the source-diversification of Lithium enhancing energy security.