• 专利标题:   Preparing lithium-ion battery anode material used for fast charging and fast discharging, by dissolving graphene oxide and diamino-substituted aromatic compound, adding ferric chloride to graphene hydrogel, mixing graphite and carbonizing.
  • 专利号:   CN110459743-A
  • 发明人:   ZHAO S, ZHAO Y
  • 专利权人:   SHENZHEN CHUANGMING BATTERY TECHNOLOGY
  • 国际专利分类:   H01M010/0525, H01M004/36, H01M004/58, H01M004/583, H01M004/60
  • 专利详细信息:   CN110459743-A 15 Nov 2019 H01M-004/36 201994 Pages: 12 Chinese
  • 申请详细信息:   CN110459743-A CN10667518 23 Jul 2019
  • 优先权号:   CN10667518

▎ 摘  要

NOVELTY - Method for preparing lithium-ion battery anode material, involves dissolving graphene oxide and diamino-substituted aromatic compound in deionized water, heating to obtain graphene hydrogel, adding ferric chloride to the graphene hydrogel, leaving still, drying to obtain a graphene composite material, adding graphite, mixing with the graphene composite material, carbonizing and removing impurities to obtain the product. USE - The method is useful for preparing lithium-ion battery anode material used for fast charging and fast discharging. ADVANTAGE - The method makes the anode material to form a three-dimensional conductive network support and form a fast ion transmission channel, improves the rapid ion transmission speed, and large-rate charge and discharge performance, has simple reaction process and a short reaction time, and highly improved production efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the lithium ion battery anode material comprises graphite and graphene composite materials, where graphene composite materials comprise graphene oxide, diamino-substituted aromatic compounds and ferric chloride, the mass ratio of graphite and graphene composite material is (10-50):1, and the mass ratio of graphene oxide, diamino-substituted aromatic compounds and ferric chloride is 1:(3-10):(15-100).