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  • 专利标题:   Composite used in e.g. active material for nonaqueous electrolyte battery, comprises graphene sheet material with e.g. at least one of monoatomic layer, active material particles including titanium-niobium composite oxide, and carbon layer.
  • 专利号:   EP2980891-A1, CN105322217-A, US2016036048-A1, KR2016015141-A, JP2016033851-A, IN201500707-I1, KR1745073-B1, EP2980891-B1, CN105322217-B, JP6293606-B2
  • 发明人:   NAITO K, HARADA Y, YOSHINAGA N, AKASAKA Y, YOSHIDA Y, ISE K, AKITA M, KATSUYUKI N, YASUHIRO H, NORIHIRO Y, YOSHIHIRO A, YORIKAZU Y, KAZUKI I
  • 专利权人:   TOSHIBA KK, TOSHIBA CORP, TOSHIBA KK, TOSHIBA CORP
  • 国际专利分类:   C01G023/00, C01G033/00, H01M010/0525, H01M004/36, H01M004/485, H01M004/62, H01M010/05, H01M010/052, H01M004/131, H01M004/133, H01M004/587, H01M010/054, C01B031/02, H01M004/583, B82Y040/00, C01B032/182
  • 专利详细信息:   EP2980891-A1 03 Feb 2016 H01M-004/36 201614 Pages: 31 English
  • 申请详细信息:   EP2980891-A1 EP159185 16 Mar 2015
  • 优先权号:   JP155552

▎ 摘　　要

NOVELTY - Composite (10) comprises: a graphene sheet material (13) including at least one of a monoatomic layer of a planar graphene sheet, and a laminate of less than or equal to 10 layers of the planar graphene sheets; active material particles (11) including a titanium-niobium composite oxide; and a carbon layer (12) which includes a carbon material having a pi -electron system and is located between the graphene sheet material and the active material particles. USE - The composite is useful in the active material, which is useful in a nonaqueous electrolyte battery (all claimed). ADVANTAGE - The composite: provides the non aqueous electrolyte battery, which exhibits excellent capacity retention and excellent stability against repetitive charge and discharge; and provides the active materials, which has a high ion conductivity, when used in combination with the negative electrode active material. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) the active material comprising the composite; (2) a nonaqueous electrolyte battery comprising a negative electrode comprising the active material, a positive electrode, and a nonaqueous electrolyte; and (3) manufacturing the composite, comprising preparing active material particles including a titanium-niobium composite oxide, preparing an organic compound having hydroxy groups, preparing a graphene sheet starting material including at least one of a monoatomic layer of a planar graphene oxide sheet and a laminate of less than or equal to 10 layers of the planar graphene oxide sheets, adding the active material particles, the organic compound, and the graphene sheet starting material into water to prepare a dispersion solution, adjusting a pH of the dispersion solution to less than 2.5, removing water from the dispersion solution to obtain a solid mixture, and heating the solid mixture in an inert atmosphere. DESCRIPTION OF DRAWING(S) - The figure is a schematic view showing a structure of composites. Composite (10) Active material particles (11) Carbon layer (12) Graphene sheet material (13)