Lithium Manganese Iron Phosphate (LiMn_xFe_(1-x)PO₄) is a new, higher nominal voltage variation of Lithium Iron Phosphate (LFP) with rising popularity. Similar in olivine structure to LFP, the iron and the manganese phosphate components each produce a flat voltage plateau of ~3.4V and ~4.0V, respectively, which lifts its nominal voltage to 3.8V vs. Li compared to just ~3.4V for LFP. LMFP has a reduced specific capacity (~150 mAh/g) compared to LFP (~170 mAh/g), but is balanced by the higher voltage of LMFP to produce similar energy density. However, since the material’s voltage window is similar to NMC-based and cobalt oxide cathodes, LMFP is a more suitable direct replacement of those cells as a low cost, cobalt or nickel-free alterative.

Cathode Electrode Sheets

NANOMYTE^® BE-80E is a cast electrode tape of LMFP powder. Standard electrode sheets are 5 inches x 10 inches (127 mm x 254 mm) and cast either single-sided or double-sided on 16 µm thick aluminum foil current collectors. NEI also offers custom tailored solutions for customers with unique specification requirements. Our tapes can also be customized to accommodate different active material loadings, coating thickness, binder type (aqueous/non-aqueous), and binder content, as well as choice of current collector.

Please note, this product should not be used in any commercial battery.

NANOMYTE^® BE-80E Spec Summary:

• Active Material: LiMn_xFe_(1-x)PO₄
• Current Collector: Aluminum (16 µm thick)
• Tape Composition: 88% active material, 8% carbon black, 4% PVDF binder
• Sheet Size: 5 in x 10 in (127 mm x 254 mm)
• Coating: Single or Double-sided sheets (as specified)
• Areal Capacity: 1.25 mAh/cm² ± 5% (per side)
• Active Material Loading: 8.9 mg/cm² ± 5% (per side)
• Tape Thickness: 80 µm ± 5% (excluding current collector)
• Nominal voltage vs. Li/Li+: 3.8V
• Minimum Discharge Capacity: 135 mAh/g
• First Cycle Charge Capacity: ≥ 150 mAh/g (2.5 – 4.3V @0.05C)
• First Cycle Discharge Capacity: ≥ 140 mAh/g (2.5 – 4.3V @0.05C)