• 专利标题:   Preparing graphene/azure A composite material useful as anode material for lithium ion battery, comprises e.g. pipetting graphene solution into aqueous solution, uniformly dispersing, ultrasonicating, sealing, hydrothermally reacting, purifying and vacuum drying.
  • 专利号:   CN115275150-A
  • 发明人:   MA Q, WANG R, ZHANG L, XIONG P, ZHANG C
  • 专利权人:   UNIV ANHUI
  • 国际专利分类:   B82Y030/00, B82Y040/00, H01M010/0525, H01M004/36, H01M004/60, H01M004/62
  • 专利详细信息:   CN115275150-A 01 Nov 2022 H01M-004/36 202301 Chinese
  • 申请详细信息:   CN115275150-A CN10974159 15 Aug 2022
  • 优先权号:   CN10974159

▎ 摘  要

NOVELTY - Preparing graphene/azure A composite material comprises (i) pipetting graphene solution into aqueous solution, and uniformly dispersing to obtain graphene dispersion, (ii) measuring Azure A and adding to graphene dispersion, continuing ultrasonicating for 1-3 hours, and sealing resulting mixture in autoclave lined with polytetrafluoroethylene, hydrothermally reacting, natural cooling and collecting out, washing many times with deionized water, and drying in vacuum at 60-80℃ to obtain black solid, and (iii) purifying black solid by Soxhlet extraction until Soxhlet extractant is colorless, and vacuum drying at 60-80℃ to obtain final product. USE - The method is useful in preparing graphene/azure A composite material as anode material for lithium ion battery (claimed). ADVANTAGE - The method is simple and economical. The material has high specific surface area, good electrical conductivity, excellent long cycle life, rate performance and high specific capacity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene/azure A composite material, prepared by above method.