发明授权
US06632569B1 Carbonaceous material for electrode and non-aqueous solvent secondary battery using this material 有权
使用该材料的电极用碳质材料和非水溶剂二次电池

  • 专利标题: Carbonaceous material for electrode and non-aqueous solvent secondary battery using this material
  • 专利标题(中): 使用该材料的电极用碳质材料和非水溶剂二次电池
  • 申请号: US09447267
    申请日: 1999-11-23
  • 公开(公告)号: US06632569B1
    公开(公告)日: 2003-10-14
  • 发明人: Takashi KamedaTadashi Ishihara
  • 申请人: Takashi KamedaTadashi Ishihara
  • 优先权: JP10-336796 19981127; JP11-080904 19990325
  • 主分类号: H01M1024
  • IPC分类号: H01M1024
Carbonaceous material for electrode and non-aqueous solvent secondary battery using this material
摘要:
A carbonaceous material has a plane space d002 of a (002) plane less than 0.337 nm in an X-ray wide angle diffraction method, a crystallite size (Lc) of 90 nm or higher, an R value, as a peak intensity ratio of a peak intensity of 1360 cm−1 to a peak intensity of 1580 cm−1 in a Raman spectrum in use of an argon ion laser, of 0.20 or higher, and a tap density of 0.75 g/cm3 or higher. Also disclosed is a multilayer structure carbonaceous material for electrode, which is manufactured by carbonizing some organic compounds where the carbonaceous material for electrode is mixed with the organic compounds. The battery using the carbonaceous material for electrode or the multilayer structure carbonaceous material for electrode has a large capacity, a small irreversible capacity admitted in the initial cycle, excellent capacity maintaining rate of the cycle, and particularly, largely improved quick charging and discharging characteristics.
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