发明申请
US20090239150A1 POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
审中-公开
非电解电解质二次电池和非电解电解质二次电池的正极电极活性材料
- 专利标题： POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
- 专利标题（中）： 非电解电解质二次电池和非电解电解质二次电池的正极电极活性材料
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申请号： US12300618申请日： 2007-06-21
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公开(公告)号： US20090239150A1公开(公告)日： 2009-09-24
- 发明人: Yukihiro Okada , Masatoshi Nagayama , Shigeru Hanaoka , Hidekazu Hiratsuka , Takahiro Okuyama
- 申请人： Yukihiro Okada , Masatoshi Nagayama , Shigeru Hanaoka , Hidekazu Hiratsuka , Takahiro Okuyama
- 申请人地址： JP Osaka
- 专利权人： PANASONIC CORPORATION
- 当前专利权人： PANASONIC CORPORATION
- 当前专利权人地址： JP Osaka
- 优先权： JP2006-174823 20060626
- 国际申请： PCT/JP2007/062959 WO 20070621
- 主分类号： H01M4/50
- IPC分类号： H01M4/50 ; H01M4/52
摘要：
A Ni-containing positive electrode active material for a nonaqueous electrolyte secondary battery is formed of secondary particles each constituted by aggregated primary particles. In cross sections of the secondary particles, a total cross-sectional area of part of the primary particles at least partially exposed at the surfaces of the secondary particles is at least 40% of a total cross-sectional area of the primary particles constituting the secondary particles.
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