Lithium iron phosphate new ultrafine powder spray dryer

Case profile: After drying, the product size D50 of the new ultrafine powder spray dryer developed by Longxin can achieve :15~20μm/5~10μm two specifications, sphericity: high sphericity, particle hollowness: solid ball, capacity scale :25~3000kg/h evaporation.

Since the United States and Japan have published reports on olivine structure lithium iron phosphate (LiMPO4), lithium iron phosphate materials have received great attention from the market, and caused extensive research and rapid development. Compared with the traditional lithium ion secondary battery cathode material, spinel structure lithium manganate (LiMn2O4) and  Lithium cobalt acid (LiCoO2), lithium iron phosphate (LiMPO4) raw material source is more extensive, cheaper and no environmental pollution, so the world is competing to achieve the industrial production of lithium iron phosphate.

At present, the Chinese market almost all uses the high temperature solid phase process to produce lithium iron phosphate. Solid phase production of lithium iron phosphate is divided into ferrous oxalate process, iron red process and iron phosphate process according to different iron raw materials. The main processes are ferrous oxalate and ferrous phosphate. The cost of ferrous oxalate process is high because of the low yield, low production capacity and large amount of alcohol consumed in the mixing process. Although the raw material cost is high, the iron phosphate process has large yield, large production capacity and good product performance, and the previous process can be mixed by water ball grinding and sand grinding, and spray drying, and the cost is comparable to the ferrous oxalate process.