What Is Lithium Iron Manganese Phosphate (LMFP)

Lithium manganese iron phosphate (LiMnxFe1-xPO4, LMFP) is a new type of phosphate lithium-ion battery cathode material formed by doping a certain percentage of manganese (Mn) on the basis of lithium iron phosphate (LiFePO4, LFP), which is regarded as the "upgraded version of lithium iron phosphate".

The doping of manganese element can make the advantageous features of both iron and manganese elements can be effectively combined, and manganese and iron are located in the fourth period of the periodic table and adjacent to each other, with similar ionic radius and some chemical properties, so the doping will not significantly affect the original structure.

Compared with lithium iron phosphate

High voltage: The charging voltage is increased from 3.4V to 4.1V for lithium iron phosphate.

High energy density: Theoretical 15-20% increase in battery energy density, providing longer range, LFP has reached the upper limit.

Low temperature performance improvement: LMFP has a capacity retention rate of 76% at -20°C, compared to 60-70% for LFP.

Compared to ternary cathode materials

Improved safety: LFP and LMFP are both olivine shaped structure, which is more stable than the layer oxide structure of ternary batteries. LFP and LMFP have olivine structure, which is more stable and safer than ternary batteries.

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