• 专利标题:   Preparation of transition metal oxide/graphene composite used as anode material, involves applying microwave to mixed solution of transition metal salt comprising lithium, iron or titanium, water and graphite oxide.
  • 专利号:   US2015360197-A1, US9868105-B2
  • 发明人:   KIM K B, KIM H K, KIM J Y
  • 专利权人:   UNIV YONSEI IND ACADEMIC COOP FOUND
  • 国际专利分类:   B01J019/12, H01M004/04, H01M004/36, B82Y030/00, B82Y040/00, C01B031/04, C01G023/00, H01B001/18, H01M010/052, H01M004/485, H01M004/587
  • 专利详细信息:   US2015360197-A1 17 Dec 2015 B01J-019/12 201602 Pages: 11 English
  • 申请详细信息:   US2015360197-A1 US836045 26 Aug 2015
  • 优先权号:   KR106929

▎ 摘  要

NOVELTY - Preparation of transition metal oxide/graphene composite involves mixing transition metal (M1) salt, water and solution of graphite oxide dispersed in polyol solvent, applying microwave to the mixed solution to form composite, mixing obtained composite with transition metal (M2) salt to obtain transition metal (M1M2) oxide/graphene composite. The metals in salts (M1) and (M2) are lithium, ruthenium, nickel, vanadium, cobalt, manganese, iron or titanium. USE - Preparation of transition metal oxide/graphene composite e.g. spinel-type lithium titanium oxide/graphene composite used as electrode material of lithium secondary battery. ADVANTAGE - The method enables preparation of transition metal oxide/graphene composite having high electrochemical performance. The batteries using the composite have high capacity, improved lifespan and stable charging/discharging cycles.