• 专利标题:   Lithium iron phosphate/carbon composite material preparation method for lithium ion battery, involves dispersing graphene in organic solvent, and obtaining lithium iron phosphate/carbon composite material by graphene.
  • 专利号:   CN102299326-A, CN102299326-B
  • 发明人:   BU X, SU C, ZHANG C
  • 专利权人:   UNIV ZHEJIANG TECHNOLOGY
  • 国际专利分类:   H01M004/1397, H01M004/58
  • 专利详细信息:   CN102299326-A 28 Dec 2011 H01M-004/58 201209 Pages: 10 Chinese
  • 申请详细信息:   CN102299326-A CN10222958 04 Aug 2011
  • 优先权号:   CN10222958

▎ 摘  要

NOVELTY - The method involves dispersing graphene in an organic solvent. An ultrasonic treatment is performed at room temperature for 1-4 hour to obtain graphene suspension. A lithium-containing inorganic precursor is added for preparing lithium iron phosphate, forum containing inorganic precursor and phosphorus-containing inorganic precursor in a graphene suspension according to theoretical mass ratio of 1:0.1-5 percent of a lithium iron phosphate to graphene. A lithium iron phosphate/carbon composite material is obtained by graphene. USE - Method for preparing a lithium iron phosphate/carbon composite material that is utilized as an anode active material of a lithium ion battery (claimed). ADVANTAGE - The method improves the electrochemical performance of the battery, charging property and circulation stability. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic representation of a lithium iron phosphate/carbon composite material.