发明申请
- 专利标题: LITHIUM RECHARGEABLE BATTERY
- 专利标题(中): 锂可充电电池
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申请号: US14241190申请日: 2012-08-02
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公开(公告)号: US20140205901A1公开(公告)日: 2014-07-24
- 发明人: Hiroki Nagai , Yutaka Oyama
- 申请人: Hiroki Nagai , Yutaka 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
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.
公开/授权文献
- US09653725B2 Lithium rechargeable battery 公开/授权日:2017-05-16
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