The anode material of lithium iron phosphate production process

Source: 2020 - 03 - 26 'hits: times of lithium iron phosphate cathode material of production process Shared respect of staff, the following content is literacy, professional around, please. Overview, everyone knows that in the field of battery lithium iron phosphate status in this industry. Compared with the traditional lead-acid battery, it has high energy density, theoretical capacity of 170 mah/g, lead-acid battery capacity of 40 mah/g. High security, is the safety of lithium ion battery cathode material, does not contain harmful metals; Life is long, below 100% DOD, charge and discharge more than 2000 times; Charging performance is good; Low price; The environmental protection. But it also has some disadvantages, ionic conductivity electrode is poor, not suitable for large current charge and discharge; The energy density is lower than the new ternary material. According to the latest industry development trend, in the enterprise develop the sanlian battery at the same time, the research and development of the lithium iron phosphate has never stopped. With orthogonal olivine structure of LiFePO4 cathode material is once again become a research hotspot at home and abroad is hard to say. Today we mainly talk about the preparation of lithium iron phosphate battery anode materials. Commonly used method in solid method, liquid phase synthesis method, the discharge plasma sintering process, spray pyrolysis method and pulsed laser deposition method. Common routes are hydrothermal, red iron oxide and phosphoric acid tiefa coal industry group. Below is an example of a phosphate railway line. 2. Main technology and equipment introduced iron phosphate because of its use of raw materials, do not need to use solvent, mixed water system, process cost advantages such as no ammonia emissions, favored by many materials manufacturers. Main production process including mixing, spray drying and sintering, grinding, mixing, baking and packaging.