Li5FeO4 (LFO) Powder as Cathode Pre-Lithiation Additive for Lithium-Ion Battery, 50 g/bottle, CLIBCPLALFO

Li5FeO4 (LFO) is a battery pre-lithiation additive (also known as a lithium supplement agent or sacrificial lithium additive) that is a material added to an electrode during manufacturing to compensate for "irreversible lithium loss." Pre-lithiation additives provide an "extra" supply of lithium that handles this initial tax, preserving the main lithium supply for energy storage. By adding a small amount of LFO to the cathode, you create a "sacrificial" lithium reservoir. During the first charge, the LFO releases its lithium ions to form the Solid Electrolyte Interphase (SEI) layer on the anode, leaving the lithium in your main active material (like NMC or LFP) untouched for energy storage. The key benefits of LFO are: (1) Ultra-High Capacity: LFO has a theoretical capacity of ~864 mAh/g. In practical battery manufacturing, it typically delivers >700 mAh/g of extra lithium. (2) Voltage Window: It releases lithium ions primarily between 3.5V and 4.3V. This aligns perfectly with standard charging protocols for most commercial cathode materials. (3) Low Loading, High Impact: Typically only need 1% to 3% of LFO in the cathode mix to see a 10% to 15% boost in energy density, as it "saves" the cathode's primary lithium. (4) Inert Residue: Once the lithium is released, the remaining iron-based material is stable and does not interfere with the long-term cycling of the battery

Part Number	CLIBCPLALFO (C-LIB-CPLA-LFO)
Appearance	Black powder
Purity	>99%
Size Distribution	D50: 5-15 um
Surface Area	~2.0 m2/g
Addition Amount	1.0-3.0 wt%
Pre-Lithiation Mechanism
Charging Capacity (1st Cycle)	~700 mAh/g
Package Size	50 g/bottle

Notes: Please try to store the LFO powder in a dry place (glovebox is the best option). 

References: 

1. L. Niu, et al. Surface phosphorylated Li5FeO4 prelithiation additive synergistically improves the air-stability and lithium-ion conductivity, Chem Engineering J., 2024, 498, 155242.
2. J. Zhu, et al. Enhancing performance of silicon-based lithium-ion batteries with Li5FeO4 as a cathode pre-lithiation additive, J. Power Sources. 2026, 663, 238933.