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  • 专利标题:   Preparing graphene from secondary battery cathode scrap material, involves selecting cathode scrap material having graphite, and aluminum ion secondary battery scrap having electrolyte.
  • 专利号:   CN105439137-A, WO2017117839-A1, CN105439137-B
  • 发明人:   JIAO S, LEI H, LI H, TU J, WANG J
  • 专利权人:   UNIV BEIJING SCI TECHNOLOGY, BEIJING JINLV ENERGY TECHNOLOGY CO LTD, GANSU XINLV ENERGY MATERIAL CO LTD, BEIJING ALUMINUM ENERGY S T CO LTD, GANSU XINLV POWER MATERIALS CO LTD, BEIJING JINLV ENERGY TECHNOLOGY CO LTD, GANSU XINLV ENERGY MATERIAL CO LTD, UNIV BEIJING SCI TECHNOLOGY
  • 国际专利分类:   C01B031/04, H01M010/054, H01M010/54, C01B032/19
  • 专利详细信息:   CN105439137-A 30 Mar 2016 C01B-031/04 201646 Pages: 8 English
  • 申请详细信息:   CN105439137-A CN10005984 05 Jan 2016
  • 优先权号:   CN10005984

▎ 摘　　要

NOVELTY - Graphene preparation involves selecting cathode scrap material having more than 40% graphite, and aluminum ion secondary battery scrap having electrolyte. The aluminum ion secondary battery scrap is charged with a constant current or constant voltage for electrolysis. The processed material is placed in a beaker containing ethanol under ultrasonic ultrasound for 20-30 minutes, and then dried in a forced air oven to remove impurities to obtain graphene. USE - Method for preparing graphene from secondary battery cathode scrap material (claimed). ADVANTAGE - The method prepares the graphene in a simple manner with high potential and enables layered structure of graphene with high added value. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic transmission electron microscopic image of the graphene.