Ferric phosphate (LiFePO₄), also known as lithium iron phosphate, is a cathode material for lithium-ion batteries. As a cathode material, it exhibits a high thermal decomposition temperature, which means it can maintain structural stability in high-temperature environments and is less likely to experience thermal runaway. Thermal runaway is one of the primary safety concerns for lithium-ion batteries, and the high thermal stability of ferric phosphate helps reduce this risk. Additionally, its thermal effects during charging and discharging are relatively minor, which reduces the heat generated during battery operation, thereby improving overall efficiency and extending the battery's lifespan.
Thanks to its exceptional thermal stability, ferric phosphate cathode materials provide lithium-ion batteries with enhanced safety and reliability. Even under extreme conditions such as overcharging, over-discharging, short circuits, punctures, or compression, ferric phosphate maintains a high level of safety and is less prone to thermal runaway or explosions.
Due to its unique crystal structure, it remains structurally stable during charging and discharging processes, resulting in a long cycle life, typically reaching thousands of cycles. Ferric phosphate is non-toxic, non-polluting, and free of heavy metals, meeting environmental protection requirements.
With its outstanding thermal stability and various safety performance advantages, ferric phosphate has been widely applied in the lithium-ion battery industry, particularly in fields where safety and reliability are critical, such as electric vehicles and energy storage systems, making it an ideal choice in these areas.