1. 平台首页
  2. 国际专利信息
  • 专利标题:   Graphene powder having specific elemental ratio of oxygen atoms to carbon atoms and specific elemental ratio of nitrogen atoms to carbon atoms, useful in electrochemical device, which is lithium ion secondary battery.
  • 专利号:   WO2012075960-A1, CN102530926-A, TW201231390-A, CA2819316-A1, EP2649008-A1, US2013302693-A1, CN103402913-A, KR2014002682-A, JP2014505002-W, JP5874736-B2, US9413007-B2, CN103402913-B, EP2649008-A4, TW593626-B1, CA2819316-C, EP2649008-B1, KR1899174-B1
  • 发明人:   SUN P, WU Z, LIU G, TAMAKI E, KUBOTA Y, WU G, KAI W, GANG U
  • 专利权人:   TORAY FIBERS TEXTILES RES LAB CHINA CO, TORAY FIBER RES INST CHINA CO LTD, TORAY FIBERS TEXTILES RES LAB CHINA CO, TORAY IND INC, TORAY IND INC, SUN P, WU Z, LIU G, TAMAKI E, KUBOTA Y, WU G, TORAY FIBERS RES INST CHINA CO LTD, TORAY IND INC
  • 国际专利分类:   C01B031/00, C01B031/02, H01M004/00, C01B031/04, H01B001/04, H01M010/0525, H01M004/583, H01M010/052, H01M004/62, B82Y030/00, B82Y040/00, H01M004/04, H01M004/1391, C01B032/182, C01B032/192, H01M004/133
  • 专利详细信息:   WO2012075960-A1 14 Jun 2012 C01B-031/00 201242 English
  • 申请详细信息:   WO2012075960-A1 WOCN083738 09 Dec 2011
  • 优先权号:   CN10583268, CN80059402, WOCN083738, CA2819316, KR716605

▎ 摘　　要

NOVELTY - Graphene powder having an elemental ratio of oxygen atoms to carbon atoms of 0.07-0.13 and an elemental ratio of nitrogen atoms to carbon atoms of not more than 0.01, is claimed. USE - The graphene powder is useful in an electrochemical device, which is a lithium ion secondary battery (all claimed). ADVANTAGE - The graphene powder: exhibits high dispersibility and high conductivity; can be produced in an economical manner, at high rate with high efficiency and low toxicity; and provides the lithium secondary battery having high capacity and high output. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for producing the graphene powder, comprising reducing graphene oxide by using a dithionous acid salt as a reducing agent.