• 专利标题:   Preparing graphene adding/radiating composite material useful for energy automobile lithium battery involves wrapping layer of aluminum foil on carbon fiber bundle, detecting magnetism of cobalt film deposition end, subjecting mixed solution through bidirectional freezing gradient and freeze-drying.
  • 专利号:   CN115109568-A, CN115109568-B
  • 发明人:   CHEN D
  • 专利权人:   NEW MORE GRAPHENE APPL TECHNOLOGY CO LTD
  • 国际专利分类:   C09K005/14, C23C014/18, C23C014/28, H01M010/653
  • 专利详细信息:   CN115109568-A 27 Sep 2022 C09K-005/14 202298 Chinese
  • 申请详细信息:   CN115109568-A CN10638694 07 Jun 2022
  • 优先权号:   CN10638694

▎ 摘  要

NOVELTY - The method involves (i) taking the carbon fiber bundle, wrapping a layer of aluminum foil on the carbon fiber bundle, exposing a bare end and using pulse laser vapor deposition device to deposit cobalt film on the exposed end; (ii) detecting the magnetism of the cobalt film deposition end on the carbon fiber bundle, if the magnetic is not enough, re-depositing the cobalt film and if the magnetism meets the requirement, entering step (iii); (iii) placing the carbon fiber beam in the copper hydroxide/graphene oxide suspension and ultrasonic dispersion to obtain the mixed solution; (iv) arranging the carbon fiber bundle in the mixed liquid in multi-stage orientation and passing the top end of the carbon fiber bundle through the top surface of the mixed liquid; (v) subjecting the mixed solution through bidirectional freezing gradient and freeze-drying to form carbon fiber bundle-copper hydroxide/graphene oxide heat conducting material; and (vi) reducing the material to form material. USE - The method for preparing graphene adding/radiating composite material is useful for energy automobile lithium battery. ADVANTAGE - The carbon fiber bundle in the mixed liquid is highly oriented by multi-level magnetic arrangement, and improves the product heat conducting coefficient by more than 30%. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a graphene adding/radiating composite material, is prepared as mentioned above. DESCRIPTION OF DRAWING(S) - The drawing shows a structural diagram of a multi-level magnetic arrangement region of a of graphene adding/radiating composite material for new energy automobile lithium battery. 100Outer ring iron core