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  • 专利标题:   Graphene powder for manufacturing paste for forming lithium ion battery electrode, has preset specific surface area measured by BET measurement, and oxygen-to-carbon element ratio measured by X-ray photoelectron spectroscopy.
  • 专利号:   WO2016056557-A1, TW201613822-A, KR2017057247-A, CA2962721-A1, JP2015550887-X, EP3205624-A1, CN107108225-A, US2017346098-A1, EP3205624-A4, EP3205624-B1, US10230111-B2, ES2716611-T3
  • 发明人:   YANG H, TAMAKI E, KUBOTA Y
  • 专利权人:   TORAY IND INC, TORAY IND INC, TORAY IND INC
  • 国际专利分类:   C01B031/02, H01M004/13, H01M004/139, H01M004/62, C01B031/04, C01B032/182, H01M010/0525, C01B032/15, C01B032/18, C01B032/05, C01B032/19, B82Y030/00, B82Y040/00, C01B032/192, H01M010/052, H01M004/583
  • 专利详细信息:   WO2016056557-A1 14 Apr 2016 C01B-031/02 201631 Pages: 27 Japanese
  • 申请详细信息:   WO2016056557-A1 WOJP078362 06 Oct 2015
  • 优先权号:   JP208590, WOJP078362, CA2962721

▎ 摘　　要

NOVELTY - A graphene powder has a specific surface area of 80-250 m2/g, as measured by BET measurement, and an oxygen-to-carbon element ratio of 0.09-0.30, measured by X-ray photoelectron spectroscopy. USE - Graphene powder is used for manufacturing paste for forming lithium ion battery electrode (all claimed) for battery for electronic device. ADVANTAGE - The graphene powder has a high dispersibility and ion conductivity due to its moderate specific surface area and oxidation degree. The graphene powder efficiently forms an electroconductive network within an electrode matrix. The lithium ion battery electrode has excellent charge/discharge characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for lithium ion battery electrode paste, which comprises graphene powder, an electrode active material, and a binder.