• 专利标题:   Preparing lithium iron phosphate cathode material used for preparing lithium-ion batteries, involves drying mixing and refining iron source, phosphorus source, lithium source, carbon source and additives to obtain mixture.
  • 专利号:   CN112897491-A, WO2022156500-A1, HU202200270-A1, CN112897491-B
  • 发明人:   ZHANG S, RUAN D, TANG S, LI C, RUAN DINGSHAN, ZHANG SHIQING, TANG SHENGHE, LI CHANGDONG
  • 专利权人:   GUANGDONG BRUNP CYCLING TECHNOLOGY CO, HUNAN BRUNP RECYCLING TECHNOLOGY CO LTD, HUNAN BRUNP AUTOMOBILE CIRCULATION CO, GUANGDONG BRUNP RECYCLING TECHNOLOGY CO, HUNAN BRUNP RECYCLING TECHNOLOGY CO LTD, HUNAN BRUNP VEHICLES RECYCLING CO LTD, GUANGDONG BRUNP RECYCLING TECHNOLOGY CO
  • 国际专利分类:   C01B025/45, C01B032/05, H01M010/0525, H01M004/58
  • 专利详细信息:   CN112897491-A 04 Jun 2021 C01B-025/45 202157 Chinese
  • 申请详细信息:   CN112897491-A CN10081821 21 Jan 2021
  • 优先权号:   CN10081821

▎ 摘  要

NOVELTY - Preparing lithium iron phosphate cathode material involves drying mixing and refining iron source, phosphorus source, lithium source, carbon source and additives to obtain a mixture, performing sintering of the mixed material, and then pulverizing to obtain pulverized materials. The pulverized material is sintered, where the gasifiable organic carbon source is passed for coating and cooled to obtain the lithium iron phosphate cathode material. The gasifiable organic carbon source is acetylene, methane, ethane, propane, methanol, ethanol, ethylene glycol, isopropanol, glycerol, acetone, butanone or 2-pentanone. USE - Method for preparing lithium iron phosphate cathode material used for preparing lithium-ion batteries (claimed). ADVANTAGE - The method prepares the lithium iron phosphate cathode material in a simple, cost-effective and eco-friendly manner with better carbon coating layer and particle morphology, greatly improved performance and good cycle stability, and can meet the general requirements of high-performance lithium iron phosphate batteries.