• 专利标题:   Manufacture of natural graphite composite material involves mixing coal-based powder and natural graphite, adding asphalt micropowder to mixture, modifying, graphitizing, adding graphene, carbonizing, cooling, pulverizing and sieving.
  • 专利号:   CN106058210-A, CN106058210-B
  • 发明人:   WANG L, YE T, HAN T, SHAN B
  • 专利权人:   DALIAN HONGGUANG LITHIUM CO LTD
  • 国际专利分类:   H01M010/0525, H01M004/36, H01M004/587, H01M004/62
  • 专利详细信息:   CN106058210-A 26 Oct 2016 H01M-004/36 201683 Pages: 8 Chinese
  • 申请详细信息:   CN106058210-A CN10628235 03 Aug 2016
  • 优先权号:   CN10628235

▎ 摘  要

NOVELTY - Manufacture of natural graphite composite material involves mixing coal-based powder having median diameter of 5-10 mu m, and natural graphite having median diameter of 6-10 mu m, in weight ratio of 100:30-100, adding asphalt micropowder having maximum particle size of 2 mu m or less to the mixture in weight ratio of 100:30-100, modifying at 300-600 degrees C, graphitizing at 2800-3200 degrees C, adding graphene to the mixture in weight ratio of 100:30-80, carbonizing at 1200-1500 degrees C, cooling to room temperature, pulverizing, and sieving. USE - Manufacture of natural graphite composite material (claimed). ADVANTAGE - The method enables efficient manufacture of natural graphite composite material with excellent high/low-temperature performance, processing performance, conductivity and productivity.