• 专利标题:   Method for preparing graphene conductive agent, involves mixing graphene, epoxy resin, carbon fiber, ethanol, followed by performing ultrasonic dispersion, mixing metal filler, carbon nanotubes and hypromellose and mixing.
  • 专利号:   CN110165216-A
  • 发明人:   ZHANG C
  • 专利权人:   JINAN DEV ZONE XINGHUO TECHNOLOGY RES
  • 国际专利分类:   H01M004/62
  • 专利详细信息:   CN110165216-A 23 Aug 2019 H01M-004/62 201973 Pages: 5 Chinese
  • 申请详细信息:   CN110165216-A CN10325730 12 Apr 2018
  • 优先权号:   CN10325730

▎ 摘  要

NOVELTY - A graphene conductive agent preparing method involves weighing 18-23 pts. wt. graphene, 30-40 pts. wt. epoxy resin, 2-6 pts. wt. carbon fiber, 60-100 pts. wt. ethanol for mixing, and performing ultrasonic dispersion at 55-65 degrees C for 10-25 minutes to obtain premix-A, and weighing 20-35 pts. wt. metal filler, 30-40 pts. wt. carbon nanotubes, 0.01-0.5 pts. wt. polyoxyethylene alkylamine, 1-10 pts. wt. hypromellose, 100-160 pts. wt. Ion for mixing, stirring at 80-100 degrees C for 30-60 minutes to obtain premix-B. The premix-A is mixed with the premix-B at a mass ratio of 8:10:2:4, and added an auxiliary agent and a conductive polymer agent, performed high pressure dispersion treatment at a pressure of 21000 PSI, raised the temperature to 150-200 degrees C and stirred for 3-6 hours, after cooling, ground to a particle size of 10-20 nm to obtain the desired product. USE - Method for preparing graphene conductive agent. ADVANTAGE - The method enables preparing the graphene conductive agent with effectively improving the capacity of the electrode material and circulating life of the battery and reducing the internal resistance of the battery, and strong electron conduction ability and uniform heat conduction and strong making ability.