发明申请
US20140205901A1 LITHIUM RECHARGEABLE BATTERY 有权
锂可充电电池

  • 专利标题: LITHIUM RECHARGEABLE BATTERY
  • 专利标题(中): 锂可充电电池
  • 申请号: US14241190
    申请日: 2012-08-02
  • 公开(公告)号: US20140205901A1
    公开(公告)日: 2014-07-24
  • 发明人: Hiroki NagaiYutaka Oyama
  • 申请人: Hiroki NagaiYutaka Oyama
  • 优先权: JP2011-189422 20110831
  • 国际申请: PCT/JP2012/069756 WO 20120802
  • 主分类号: H01M4/36
  • IPC分类号: H01M4/36 C01G53/00
LITHIUM RECHARGEABLE BATTERY
摘要:
The lithium rechargeable battery of the present invention is provided with a current collector and an active material layer containing active material particles 10 supported on this current collector. The active material particles 10 are secondary particles 14 in which a plurality of primary particles 12 of a lithium transition metal oxide are aggregated, and have a hollow structure that contains a hollow section 16 formed inside the secondary particle 14 and a shell section 15 that surrounds the hollow section 16. A through hole 18 that penetrates from the outside to the hollow section 16 is formed in the secondary particle 14. The ratio (A/B) in a powder x-ray diffraction pattern of the active material particles 10, where A is the full width at half maximum of the diffraction peak obtained for the (003) plane and B is the full width at half maximum of the diffraction peak obtained for the (104) plane, satisfies the equation (A/B)≦0.7.
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