发明名称 |
LITHIUM ION SECONDARY BATTERY |
摘要 |
A lithium-ion secondary battery capable of securing safety at a time of battery abnormality and restricting a drop in a high rate discharge property is provided. A lithium-ion secondary battery 1 has an electrode group 5 formed by winding a positive electrode plate 2 in which a positive electrode mixture including a positive electrode active material is formed at a collector and a negative electrode plate 3 in which a negative electrode mixture including a negative electrode active material is formed at a collector via a porous separator 4. A flame retardant is mixed to the positive electrode mixture of the positive electrode plate 2. The mode of pore diameters formed at the positive electrode mixture, which is measured by a mercury porosimetry, is set to a range of from 0.5 to 2.0µm. The moving path for lithium-ions and at the same time the moving path for electrons are secured at a charge/discharge time. |
申请公布号 |
KR20140027044(A) |
申请公布日期 |
2014.03.06 |
申请号 |
KR20137005733 |
申请日期 |
2011.09.05 |
申请人 |
SHIN-KOBE ELECTRIC MACHINERY CO., LTD. |
发明人 |
TSUJIKAWA TOMONOBU;ARAKAWA MASAYASU;MIYAMOTO YOSHIKI;HAYASHI KOJI;NAKAHARA MASAKI |
分类号 |
H01M4/131;H01M4/505;H01M4/62;H01M10/0525;H01M10/0568 |
主分类号 |
H01M4/131 |
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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