发明公开

  • 专利标题: METHOD FOR PRODUCING CARBON MATERIAL FOR NEGATIVE ELECTRODES OF LITHIUM ION SECONDARY BATTERIES, MIXTURE FOR NEGATIVE ELECTRODES OF LITHIUM ION SECONDARY BATTERIES, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY
  • 专利标题(中): 用于生产碳质材料的锂二次电池负极,MIX用于锂二次电池,负极的锂离子二次电池,锂离子二次电池的负极
  • 申请号: EP13754595.0
    申请日: 2013-02-26
  • 公开(公告)号: EP2822066A1
    公开(公告)日: 2015-01-07
  • 发明人: TAKEUCHI, TakeshiOKUMURA, ShuheiKAMATA, ToruYOKOTA, Yoshimasa
  • 申请人: Sumitomo Bakelite Company Limited
  • 申请人地址: 5-8 Higashi-shinagawa 2-chome Shinagawa-ku Tokyo 140-0002 JP
  • 专利权人: Sumitomo Bakelite Company Limited
  • 当前专利权人: Sumitomo Bakelite Company Limited
  • 当前专利权人地址: 5-8 Higashi-shinagawa 2-chome Shinagawa-ku Tokyo 140-0002 JP
  • 代理机构: Ter Meer Steinmeister & Partner
  • 优先权: JP2012039641 20120227
  • 国际公布: WO2013129396 20130906
  • 主分类号: H01M4/587
  • IPC分类号: H01M4/587
METHOD FOR PRODUCING CARBON MATERIAL FOR NEGATIVE ELECTRODES OF LITHIUM ION SECONDARY BATTERIES, MIXTURE FOR NEGATIVE ELECTRODES OF LITHIUM ION SECONDARY BATTERIES, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY
摘要:
The present invention provides a method of producing a carbon material for lithium ion secondary battery negative electrode, the carbon material containing a plurality of carbon particles, the method comprising the steps of: preparing a resin dispersion material containing a dispersion medium and a plurality of resin particles which are substantially insoluble in the dispersion medium; ejecting a plurality of liquid droplets of the resin dispersion material using a liquid droplet ejecting method, the liquid droplets each containing the dispersion medium and at least one of the resin particles; and heat-treating the plurality of liquid droplets so that the resin particle contained in each liquid droplet is carbonized while removing the dispersion medium to thereby obtain at least one of the carbon particles from each liquid droplet.
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