• 专利标题:   Anode material useful in ion battery, comprises three-dimensional graphene containing gap and hole, and sulfur located in gap and/or hole.
  • 专利号:   CN111668460-A
  • 发明人:   WANG Y, MENG C, WANG J, LIU D, LI G, FAN W
  • 专利权人:   ENN SCI TECHNOLOGY DEV CO LTD
  • 国际专利分类:   H01M010/054, H01M004/139, H01M004/36, H01M004/38, H01M004/62
  • 专利详细信息:   CN111668460-A 15 Sep 2020 H01M-004/36 202080 Pages: 15 Chinese
  • 申请详细信息:   CN111668460-A CN10175805 08 Mar 2019
  • 优先权号:   CN10175805

▎ 摘  要

NOVELTY - Anode material comprises three-dimensional graphene and sulfur, where the three-dimensional graphene contains a gap and a hole, and sulfur is located in the gap and/or in the hole. USE - The anode material is useful in ion battery (claimed). ADVANTAGE - The anode material increases specific capacity of anode and improve the cycle performance of the anode, and thus improves specific capacity and cycle performance of the ion battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the anode material, comprising preparing graphene oxide solution, mixing the graphene oxide solution with a reducing agent, and reacting to obtain three-dimensional graphene, and then mixing the three-dimensional graphene and sulfur to perform three-dimensional graphene sulfur fixation to obtain final product; (2) anode pole piece comprising a current collector and an anode slurry covered on the current collector, where the anode slurry is composed of the anode material, conductive agent, adhesive and solvent; (3) preparation of the anode pole piece; and (4) ion battery comprising an anode comprising anode pole piece, a cathode comprising a cathode pole piece, a diaphragm located between the anode and the cathode, an aluminum-plastic film for wrapping and packaging the anode, diaphragm and cathode, and an electrolyte filled between the anode and the diaphragm, and between the diaphragm and the cathode, where the negative pole piece is composed of an aluminum foil.