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  • 专利标题:   Graphene powder for preparing lithium ion battery electrode, comprises compound having catechol group that adsorbs on graphene, e.g. catechol, dopamine hydrochloride, 3,4-dihydroxyphenylalanine, noradrenalin, and caffeic acid.
  • 专利号:   WO2013181994-A1, CN103466602-A, TW201400408-A, CA2872445-A1, CN104271497-A, KR2015027115-A, EP2858945-A1, US2015140438-A1, JP2015520109-W, CN104271497-B, JP6098714-B2, TW580637-B1, EP2858945-B1, EP2858945-A4, ES2642192-T3, US10347916-B2, KR2000812-B1
  • 发明人:   SUN P, LIU G, WU Z, WU G, TAMAKI E, KUBOTA Y
  • 专利权人:   TORAY ADVANCED MATERIALS RES LAB, TORAY IND INC, TORAY IND INC, SUN P, LIU G, WU Z, WU G, TAMAKI E, KUBOTA Y, TORAY ADVANCED MATERIALS RES LAB, TORAY IND INC, TORAY IND INC
  • 国际专利分类:   C01B031/00, H01M004/62, C01B031/04, H01M004/1393, H01M004/38, H01M010/052, H01M010/0525, C01B031/02, H01M004/13, C01B032/15, C01B032/18, C01B032/182, C01B032/192, C01B032/194, B82Y030/00, B82Y040/00
  • 专利详细信息:   WO2013181994-A1 12 Dec 2013 C01B-031/00 201401 Pages: 32 English
  • 申请详细信息:   WO2013181994-A1 WOCN076173 23 May 2013
  • 优先权号:   CN10196429, CN80023183, WOCN076173, CA2872445, KR736092

▎ 摘　　要

NOVELTY - Graphene powder comprises a compound having a catechol group that adsorbs on graphene in a weight ratio of 5% or more and 50% or less relative to the graphene, and the element ratio of oxygen to carbon in the graphene powder measured by X-ray photoelectron spectroscopy is 0.06 or more and 0.20 or less. USE - The graphene powder is useful for preparing lithium ion battery electrode (claimed). ADVANTAGE - Highly conductive and highly dispersible graphene powder and electrode for lithium ion battery with excellent performance utilizing the highly conductive and highly dispersible graphene are provided. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a lithium ion battery electrode, comprising the graphene powder, an electrode active material and a binder; and (2) a method for producing graphene powder, involving reducing a graphite oxide with a reducing agent having no catechol group in the presence of a compound having a catechol group to produce the graphene powder.