发明名称 |
POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY USING SAME |
摘要 |
There is provided a positive electrode active material comprising a large number of crystal grains composed of lithium manganate of spinel structure, wherein the large number of crystal grains contain primary particles of 3 to 20 µm in particle diameter by 70 areal % or more relative to all the crystal grains, the primary particles contain a component having a rectangular plane, and the ratio of the total area of all the rectangular planes to the total surface area of the primary particles is 0.5 to 5%. |
申请公布号 |
EP2447215(A2) |
申请公布日期 |
2012.05.02 |
申请号 |
EP20100748893 |
申请日期 |
2010.06.21 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
YURA, YUKINOBU;KOBAYASHI, NOBUYUKI;NANATAKI, TSUTOMU;KAIGAWA, KAZUYUKI |
分类号 |
C01G45/00;H01M4/505 |
主分类号 |
C01G45/00 |
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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