Lithium Iron Phosphate (Lithium Iron Phosphate or LFP)

LFPs are often used to replace lead-acid batteries. It is intended for use on area work platforms, floor machines, traction units, low speed vehicles and energy storage systems.

Lithium iron phosphate is more tolerant to full charge conditions and less stressed than other lithium-ion systems if the high voltage is maintained for a period of time. As a trade-off, the lower voltage of 3.2V/cell reduces the specific energy. Also, low temperatures will degrade performance, and elevated storage temperatures will reduce lifespan, but are still better than lead acid, nickel cadmium or nickel metal hydride. Lithium phosphate has higher self-discharge than other lithium-ion batteries, which can cause balance problems as they age.

Lithium Iron Phosphate (Lithium Iron Phosphate or LFP) (1)
Lithium Iron Phosphate (Lithium Iron Phosphate or LFP) (3)

Lithium iron phosphate is more tolerant to full charge conditions and less stressed than other lithium-ion systems if the high voltage is maintained for a period of time. As a trade-off, the lower voltage of 3.2V/cell reduces the specific energy. Also, low temperatures will degrade performance, and elevated storage temperatures will reduce lifespan, but are still better than lead acid, nickel cadmium or nickel metal hydride. Lithium phosphate has higher self-discharge than other lithium-ion batteries, which can cause balance problems with aging.

Power lithium batteries are mainly composed of positive electrodes, negative electrodes, electrolytes, separators, etc., and require high energy density, long life, reliability and safety. Its working principle is that the movement of electrons occurs through the chemical reaction between the positive and negative electrode materials and the electrolyte to generate electric current. During charging (taking the estimation of lithium-ion battery as an example), the positive electrode of the battery generates Li﹢, Li﹢ is deintercalated from the positive electrode, and inserted into the negative electrode through the electrolyte; on the contrary, when discharging, Li﹢ is deintercalated from the negative electrode and inserted into the positive electrode through the electrolyte.

Lithium Iron Phosphate (Lithium Iron Phosphate or LFP) (2)

Post time: Jun-03-2019