• 专利标题:   Method for preparing adjustable conductivity type pyrolytic carbon material used in portable electronic product, involves crystallizing solid after pyrolysis for cooling to room temperature for grinding and sieving to obtain pyrolytic carbon, and performing water washing until pH value is neutral.
  • 专利号:   CN115594166-A
  • 发明人:   PAN B, LIU B, ZHANG P
  • 专利权人:   UNIV KUNMING SCI TECHNOLOGY
  • 国际专利分类:   C01B032/05, H01M004/587, H01M004/62
  • 专利详细信息:   CN115594166-A 13 Jan 2023 C01B-032/05 202312 Chinese
  • 申请详细信息:   CN115594166-A CN11256421 13 Oct 2022
  • 优先权号:   CN11256421

▎ 摘  要

NOVELTY - The method involves continuously stirring and adding a graphene into sodium alginate solution until graphene is uniformly dispersed. Sodium alginategraphene solution is slowly injected after standing into a calcium chloride solution for continuously stirring for 1-2 hours at uniform speed to obtain gel in a mixture. The mixture is filtered and washed by gel for drying to obtain crystalline solid. A solid is crystallized after pyrolysis for cooling to room temperature for grinding and sieving to obtain pyrolytic carbon. Water washing is performed until pH value is neutral and drying and storing. USE - Method for preparing an adjustable conductivity type pyrolytic carbon material used in a portable electronic product, electric bicycle, electric automobile and energy storage field. ADVANTAGE - The method uses the good absorption of sodium alginate solution, making the graphene uniformly distributed in the solution, improving the conductivity of the pyrolytic carbon, at the same time, the addition of the graphene has little influence to the other properties of the material. The method is simple and easy, through the design of raw material and reaction condition, it can control and change the material conductivity. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view representation illustrating the method for preparing an adjustable conductivity type pyrolytic carbon material. (Drawing includes non-English language text).