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  • 专利标题:   Cathode composite material comprises silicon-M-carbon composite materials, and conductive layer on surface of silicon-M-carbon composite material, where M includes boron, nitrogen, and/or oxygen.
  • 专利号:   CN113196525-A, WO2021217327-A1, EP3965190-A1, US2022199975-A1, JP2022534460-W, EP3965190-A4, KR2022148303-A, JP7221392-B2
  • 发明人:   CHEN Z, YI T, JIANG D, CUI H, JIHUAN C, TING L, TAOI J, TRANSITION P O
  • 专利权人:   NINGDE AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, NINGDE NEW ENERGY TECHNOLOGY CO LTD
  • 国际专利分类:   H01M010/0525, H01M004/134, H01M004/36, H01M004/38, H01M004/62, H01M004/58, H01M004/587, C01B032/05, H01M004/02
  • 专利详细信息:   CN113196525-A 30 Jul 2021 H01M-004/36 202168 Pages: 14 Chinese
  • 申请详细信息:   CN113196525-A CN80006823 27 Apr 2020
  • 优先权号:   CN80006823, EP933237, JP532460, WOCN087180, CN80006823, US690272, KR736213

▎ 摘　　要

NOVELTY - Cathode composite material comprises silicon-M-carbon composite materials, and conductive layer on surface of silicon-M-carbon composite material, where M includes boron, nitrogen, and/or oxygen. The chemical shifts of silicon in the silicon-M-carbon composite material tested by solid-state nuclear magnetic resonance include -5ppm plus minus 5ppm, -35ppm plus minus 5ppm, -75ppm plus minus 5ppm, -110ppm plus minus 5ppm, and the half-value width K at -5ppm plus minus 5ppm satisfies: 7ppm less than K less than 28ppm. USE - Used as cathode composite material. ADVANTAGE - The cathode composite material has lower expansion rate and higher conductivity. The cathode pole piece and electrochemical device has excellent cycle performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) cathode pole piece comprising mixture layer comprising the cathode composite material; (2) electrochemical device comprising cathode pole piece; and (3) electronic device comprising electrochemical device.