发明申请
US20090029253A1 POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY WITH NONAQUEOUS ELECTROLYTE, AND BATTERY USING THE SAME
有权
具有非电解电解质的锂离子电池的正极电极材料和使用其的电池
- 专利标题: POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY WITH NONAQUEOUS ELECTROLYTE, AND BATTERY USING THE SAME
- 专利标题(中): 具有非电解电解质的锂离子电池的正极电极材料和使用其的电池
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申请号: US11912819申请日: 2006-04-28
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公开(公告)号: US20090029253A1公开(公告)日: 2009-01-29
- 发明人: Takanori Itou , Hideaki Horie , Takamitsu Saito
- 申请人: Takanori Itou , Hideaki Horie , Takamitsu Saito
- 专利权人: NISSAN MOTOR CO., LTD.
- 当前专利权人: NISSAN MOTOR CO., LTD.
- 优先权: JP2005-133667 20050428
- 国际申请: PCT/JP2006/309054 WO 20060428
- 主分类号: H01M4/00
- IPC分类号: H01M4/00
摘要:
An object of the present invention is to provide a positive electrode material for non-aqueous electrolyte lithium-ion battery which capable of discharging high output power and inhibiting cracking of secondary particle in the cyclic endurance at a high temperature. The above object can be attained by a positive electrode material for non-aqueous electrolyte lithium-ion battery of the present invention, characterized in that said material comprises secondary particles composed of primary particles of lithium nickel composite oxide containing the primary particles having different aspect ratios, and that at least a part of said primary particles having different aspect ratios are arranged so as to make the longitudinal direction (the long side direction) thereof oriented toward the center of the secondary particle.
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