• 专利标题:   Preparing NaTi2V(PO4)4-three-dimensional graphene composite material used for preparing sodium-ion battery, involves adjusting pH value of multilayer graphene oxide solution, performing first hydrothermal reaction, freezing, and drying.
  • 专利号:   CN113912045-A, CN113912045-B
  • 发明人:   HOU A, ZHANG M, CHEN Y, XU S, ZHAO D, XU K
  • 专利权人:   GEM CO LTD, GEM WUXI ENERGY MATERIAL CO LTD
  • 国际专利分类:   C01B025/45, C01B032/184, C01B032/194, H01M010/054, H01M004/36, H01M004/58, H01M004/62
  • 专利详细信息:   CN113912045-A 11 Jan 2022 C01B-032/184 202258 Chinese
  • 申请详细信息:   CN113912045-A CN11136657 27 Sep 2021
  • 优先权号:   CN11136657

▎ 摘  要

NOVELTY - Preparing NaTi2V(PO4)4-three-dimensional graphene composite material involves adjusting pH value of multilayer graphene oxide solution, performing first hydrothermal reaction, freezing, drying to obtain three-dimensional graphene, adding the obtained three-dimensional graphene, sodium source, titanium source, phosphorus source and vanadium source into water and glycerol, performing a second hydrothermal reaction to obtain NaTi2V(PO4)4/three-dimensional graphene precursor, and calcining the obtained NaTi2V(PO4)4/three-dimensional graphene precursor to obtain a NaTi2V(PO4)4/three-dimensional graphene composite material. USE - Method for preparing NaTi2V(PO4)4-three-dimensional graphene composite material used for preparing sodium-ion battery (claimed). ADVANTAGE - The prepared composite material has three-dimensional conductive network and strong electron transport ability, and can be used as a positive electrode material of a sodium battery without using conductive carbon as a conductive network and a supporting skeleton of the pole piece, which greatly simplifies the fabrication process of the battery core pole piece. DESCRIPTION OF DRAWING(S) - The drawing shows a first charge-discharge curve image of the prepared battery. (Drawing includes non-English language text).