• 专利标题:   Method for manufacturing positive pole material of iron phosphate lithium battery, involves coating bonding agent on graphene nanometre sheet, and heating bonding agent in vacuum part at high temperature for about specific in range.
  • 专利号:   CN105047919-A
  • 发明人:   DAI S, YANG C, HONG Q, YAN S, ZHAO S
  • 专利权人:   AVIATION IND CORP CHINA BEIJING GREAT WA
  • 国际专利分类:   H01M004/1397, H01M004/58, H01M004/62
  • 专利详细信息:   CN105047919-A 11 Nov 2015 H01M-004/58 201581 Pages: 8 Chinese
  • 申请详细信息:   CN105047919-A CN10382324 25 Jun 2015
  • 优先权号:   CN10382324

▎ 摘  要

NOVELTY - The method involves manufacturing lithium iron phosphate/graphene composite material. Soluble lithium compound is dissolved in deionized water. Uniform graphene ultrasonic dispersing process is performed. Ferrous sulfate salt is stirred with phosphoric acid. The lithium iron phosphate/graphene composite material is mixed with a binder for obtaining fine particles. Bonding agent is coated on a graphene nanometer sheet. Bonding agent mixing, homogenizing and drying process is performed. The bonding agent is heated in a vacuum part at high temperature for about 180 to 220 degree. USE - Method for manufacturing positive pole material of an iron phosphate lithium battery. ADVANTAGE - The method enables improving controllability, iron phosphate lithium conductivity, positive pole material conductivity, tapping density and battery capacity, realizing positive pole material manufacturing process in a simple manner and satisfying large scale production requirements.