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  • 专利标题:   Graphene conductive composite material for lithium ion battery, comprises graphene nanosheet; and conjugated copolymers containing alkyne groups and having linear structure, and grafted with graphene nanosheet.
  • 专利号:   WO2022063292-A1, CN114426668-A, KR2023078728-A, CN114426668-B
  • 发明人:   SUN S, ZHANG S, DONG W, GAO H, PROTEST P
  • 专利权人:   CHINA PETROLEUM CHEM CORP, SHANGHAI PETROCHEM TECHNOLOGY RES IN, SINOPEC SHANGHAI RES INST PETROCHEMICAL, CHINA PETROLEUM CHEM CORP, CHINA PETROLEUM CHEM CORP SINOPEC
  • 国际专利分类:   B32B033/00, C01B032/00, C08G083/00, H01M010/0525, H01M004/62, C01B032/184
  • 专利详细信息:   WO2022063292-A1 31 Mar 2022 C08G-083/00 202239 Pages: 28 Chinese
  • 申请详细信息:   WO2022063292-A1 WOCN120911 27 Sep 2021
  • 优先权号:   CN11042741, CN10438129, KR714068

▎ 摘　　要

NOVELTY - Graphene conductive composite material comprises graphene nanosheet; and conjugated copolymers containing alkyne groups and having a linear structure, and grafted with graphene nanosheet. USE - The composite material is useful for lithium ion battery (claimed). ADVANTAGE - The composite material can be uniformly dispersed in electrode slurry; reduces internal resistance of an electrode; and improves electrical conductivity of electrode, structural stability of silicon-containing cathode, rate capability and cycling stability of the lithium battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for producing graphene conductive composite material, comprising pretreating the graphene nanosheet with 4-bromoboric acid diazobenzene tetrafluoroborate, and forming conjugated copolymers in the presence of graphene nanosheet.