• 专利标题:   Sodium ion battery cathode material comprises tin and organic complexing agent to form complex, prepared by e.g. adding tin salt aqueous solution into organic complexing agent aqueous solution, adding graphene, reacting and drying.
  • 专利号:   CN112768650-A
  • 发明人:   DONG X, DUAN L, ZHANG X, CHEN G
  • 专利权人:   SHANGHAI JINHAI NEW MATERIAL TECHNOLOGY
  • 国际专利分类:   C01B032/182, H01M010/054, H01M004/36, H01M004/38, H01M004/583, H01M004/60, H01M004/62
  • 专利详细信息:   CN112768650-A 07 May 2021 H01M-004/36 202147 Pages: 7 Chinese
  • 申请详细信息:   CN112768650-A CN11625405 31 Dec 2020
  • 优先权号:   CN11625405

▎ 摘  要

NOVELTY - Sodium ion battery cathode material comprises tin and an organic complexing agent to form complex. The complex is compounded with 2-10 wt.% graphene. The molar ratio of the tin to the organic complexing agent is 1:1-2. The graphene is a single layer or multiple layers (less than ten layers). USE - Used as sodium ion battery cathode material. ADVANTAGE - The material: can slow down the volume expansion effect of tin; has a certain degree of flexibility and high cycle stability; absorbs the mechanical stress; and prevents the particles from breaking during the charge and discharge process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing sodium ion battery cathode material, comprising (i) adding the tin salt aqueous solution into the organic complexing agent aqueous solution under stirring, and adding graphene to obtain a mixed solution and (ii) adding the mixed solution into a hydrothermal reaction kettle, reacting at a certain temperature for a certain period of time, filtering, washing and drying after the reaction.