• 专利标题:   Preparing graphene-coated lithium iron phosphate composite material comprises using spray drying or evaporating and drying, coating the graphene oxide and lithium iron phosphate to obtain graphene coated lithium iron phosphate precursor.
  • 专利号:   CN112694078-A
  • 发明人:   FAN R, LIU Q, SHAO L, TIAN Z, ZHENG D, JING D, LI Y
  • 专利权人:   SHAANXI COAL CHEM IND TECHNOLOGY RES
  • 国际专利分类:   C01B025/45, C01B032/198, H01M010/0525, H01M004/36, H01M004/58, H01M004/62
  • 专利详细信息:   CN112694078-A 23 Apr 2021 C01B-025/45 202146 Pages: 8 Chinese
  • 申请详细信息:   CN112694078-A CN11607787 29 Dec 2020
  • 优先权号:   CN11607787

▎ 摘  要

NOVELTY - Preparing graphene-coated lithium iron phosphate composite material comprises using spray drying or evaporating and drying, coating the graphene oxide and lithium iron phosphate to obtain graphene coated lithium iron phosphate precursor, heating graphene coated lithium iron phosphate precursor to obtain graphene-coated lithium iron phosphate composite material, the ratio of the sheet diameter of the graphene oxide to the D50 of the lithium iron phosphate is 0.05-40. USE - The method is useful for preparing graphene-coated lithium iron phosphate composite material. ADVANTAGE - The method improves the charging and discharging performance under the large magnification of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene-coated lithium iron phosphate composite material prepared by above method.