Fire recovery process of lithium iron phosphate battery

The traditional pyrotechnic recycling generally involves incinerating the electrode sheets at high temperature to burn off the carbon and organic matter in the electrode fragments, and the remaining ash that cannot be burned is finally screened to obtain fine powder materials containing metals and metal oxides. The process of this method is simple, but the treatment process is long, and the comprehensive recovery rate of valuable metals is low. The improved fire recovery technology is to remove the organic binder by calcination, separate the lithium iron phosphate powder from the aluminum foil, and obtain the lithium iron phosphate material, and then add an appropriate amount of raw materials to it to obtain the required lithium, iron, and phosphorus. Molar ratio, new lithium iron phosphate was synthesized by high-temperature solid-state method. According to cost calculations, the improved fire-dry recycling of lithium iron phosphate waste batteries can achieve profitability, but the newly prepared lithium iron phosphate by this recycling process has many impurities and unstable performance.