• 专利标题:   Negative electrode material used for lithium ion secondary battery, comprises inorganic particles containing silicon, and capable of intercalating and deintercalating lithium ions, layer containing carbon, and layer containing silicon oxycarbide, in order.
  • 专利号:   JP2023076200-A
  • 发明人:   MATSUMI N, BADAM R, NANDAN R
  • 专利权人:   JAPAN ADVANCED INST SCI TECHNOLOGY
  • 国际专利分类:   H01M004/36, H01M004/38
  • 专利详细信息:   JP2023076200-A 01 Jun 2023 H01M-004/38 202350 Pages: 34 Japanese
  • 申请详细信息:   JP2023076200-A JP189479 22 Nov 2021
  • 优先权号:   JP189479

▎ 摘  要

NOVELTY - A negative electrode material (100) comprises inorganic particles (10) containing silicon, and capable of intercalating and deintercalating lithium ions, a first layer (20) containing carbon, covering all or a portion of the inorganic particles (10),and a second layer (30) containing silicon oxycarbide, covering all or a portion of the first layer (20). USE - Negative electrode material used for lithium-ion secondary battery (all claimed). Uses include but are not limited to mobile phones, personal computers, personal information terminal, standby power supply source, and drive power source of vehicles. ADVANTAGE - The negative electrode material provides lithium-ion secondary battery having excellent charging and discharging cycle characteristics, and high capacity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the production of negative electrode material (100). DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the negative electrode material. 10Inorganic particles 20First layer 30Second layer 31Carbon Particles 100Negative electrode material