Lithium iron phosphate
Cathode material for lithium batteries
Lithium iron phosphate
Lithium iron phosphate (LFP) is an inorganic compound with the formula LiFePO4. It is a gray, green, or black solid that is insoluble in water. Lithium iron phosphate is used as a positive electrode material (cathode) of lithium iron phosphate batteries, a type of Li-ion battery. The negative electrode (anode) material for these batteries is typically graphite. This battery chemistry is used in power tools, electric vehicles, solar energy installations and large grid-scale energy storage. Lithium iron phosphate exists naturally in the form of the mineral triphylite, but as found naturally, this material has insufficient purity for use in batteries. Thus, battery-grade LFP powder must be synthesized.
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