发明名称 |
Positive electrode material, its manufacturing method and lithium secondary battery |
摘要 |
The object of the invention is to provide positive electrode material in which a discharge rate characteristic and battery capacity are hardly deteriorated in the environment of low temperature of -30� C., its manufacturing method and a lithium secondary battery using the positive electrode material. The invention is characterized by the positive electrode material in which plural primary particles are flocculated and a secondary particle is formed, and the touch length of the primary particles is equivalent to 10 to 70% of the length of the whole periphery on the section of the touched primary particles. |
申请公布号 |
US2007212602(A1) |
申请公布日期 |
2007.09.13 |
申请号 |
US20070797801 |
申请日期 |
2007.05.08 |
申请人 |
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发明人 |
YUASA TOYOTAKA;KASAI MASAHIRO;NAKAJIMA GENEI |
分类号 |
H01M4/00;H01M10/40;H01M4/02;H01M4/48;H01M4/50;H01M4/505;H01M4/52;H01M4/525;H01M4/58;H01M4/62 |
主分类号 |
H01M4/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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