Lithium Manganese Iron Phosphate

Abbreviated as LMFP, Lithium Manganese Iron Phosphate brings a lot of the advantages of LFP and improves on the energy density.

• LiMn_xFe_1−xPO₄
• 15 to 20% higher energy density than LFP
  • Approximately 0.5V increase over LFP and hence energy increase
• Maximum theoretical cell level energy density ~230Wh/kg
• manganese is not a rare metal, global manganese ore resources are very rich
• Cell voltages with Graphite Anode
  • 4.25V maximum, 3.75V nominal, 2.5V minimum
• Electrodes
  • Cathode is aluminium
  • Anode is copper

downsides

• low electronic conductivity
• LMFP sees a 5 to 10% cost increase over LFP
• low rate performance

References

1. LMFP industry special report in 2022, TycoRun Energy
2. Customcells presents the newest cobalt free cathode active material, CustomCells Newsletter 2018