Lithium Iron Phosphate Battery

The lithium iron phosphate battery (LiFePO 4 battery) or LFP battery (lithium ferrophosphate), is a type of rechargeable battery, specifically a lithium-ion battery, using LiFePO 4 as the cathode material, and a graphitic carbon electrode with a metallic backing as the anode.

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The Comparation Of Lithium Iron Phosphate Battery And NCM Lithium Ion Battery

The lithium iron phosphate battery refers to a lithium ion battery using lithium iron phosphate as a positive electrode material. The positive electrode materials of lithium ion batteries mainly include lithium cobaltate, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate and the like. Lithium iron phosphate batteries are characterized by high safety, high rate charge and discharge characteristics and long cycle life. In addition to long life and excellent charge and discharge performance, the biggest advantage of lithium iron phosphate battery is its safety. The chemical properties of lithium iron phosphate are stable, and the high temperature stability is good. It will start to decompose at 700-800 °C. In the case of impact, acupuncture, short circuit, etc., no oxygen molecules are released, no violent combustion occurs, and safety performance is high.

The disadvantage of lithium iron phosphate battery is that its performance is greatly affected by temperature, especially in low temperature environment, the discharge capacity and capacity are greatly reduced. In addition, lithium iron phosphate has a lower energy density, and only the weight energy density of the battery is only 120 Wh/kg. If the entire stack is calculated, the energy density of the components including the battery management system and heat dissipation is lower.

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