• 专利标题:   Graphene composite useful in conductive additive and paste which is useful in electrode for lithium ion batteries, includes a graphene powder and a compound having a structure of pyrazolone.
  • 专利号:   WO2015120785-A1, CN104852051-A, CA2937061-A1, CN105940537-A, KR2016123314-A, US2016351908-A1, EP3105807-A1, JP2017507887-W, EP3105807-A4, US10199654-B2, JP6477717-B2, EP3105807-B1, TW644860-B1, TW201542454-A
  • 发明人:   DU N, WANG J, SUN P, TAMAKI E, KUBOTA Y, MIYAZONO K, KUBOTA, MIYASONO T
  • 专利权人:   TORAY ADVANCED MATERIALS RES LAB, TORAY IND INC, TORAY IND INC, TORAY IND INC, TORAY IND INC
  • 国际专利分类:   C01B031/04, H01M004/62, H01M010/0525, C07D231/22, H01M004/13, C09D005/24, H01M004/505, H01M004/58, C01B032/15, C01B032/18, C01B032/182, C07D231/20, C07D231/48, H01B001/24, H01M010/052, C01B032/192, H01B001/04, C01B032/05, C01B032/20, C07D231/08, H01B001/20, H01B005/00
  • 专利详细信息:   WO2015120785-A1 20 Aug 2015 H01M-004/62 201561 Pages: 47 English
  • 申请详细信息:   WO2015120785-A1 WOCN072542 09 Feb 2015
  • 优先权号:   CN10050901, CN80006207, WOCN072542, CA2937061

▎ 摘  要

NOVELTY - Graphene composite includes a graphene powder and a compound having a structure of pyrazolone. USE - The graphene composite is useful in conductive additive and paste which is useful for forming electrode for lithium ion batteries (all claimed). ADVANTAGE - The composite: provides electrode that has performance equal to or higher than conventional dispersants and is deceased in cost by using an inexpensive and easily available dispersant; imparts dispersibility in a polar solvent while maintaining a high conductive property, and provides electrode for lithium ion batteries having excellent discharge performance by using such a graphene having high dispersibility and high conductive property; and provides lithium ion secondary battery in cost-effective manner. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) conductive additive for a lithium ion battery electrode comprising at least graphene composite; (2) paste for lithium ion battery electrode comprising at least conductive additive for lithium ion battery electrode, active material and a binder; and (3) producing graphene composite comprising reducing graphite oxide in the presence of compound having structure of pyrazolone.