发明名称 |
SEALED NONAQUEOUS ELECTROLYTE SECONDARY BATTERY |
摘要 |
The present invention provides a sealed nonaqueous electrolyte secondary battery which is equipped with a current interrupt device that is actuated by a rise in internal pressure of a battery case and in which the current interrupt device is actuated in a speedy and stable manner during an overcharge. In the sealed nonaqueous electrolyte secondary battery, an electrode body formed by a positive electrode 10 and a negative electrode that oppose each other via a separator, an electrolyte, and an overcharge inhibitor are housed in the battery case. The positive electrode 10 includes a positive electrode current collector 12 and a positive electrode active material layer 14 which is formed on the current collector and which mainly contains a positive electrode active material. In addition, a conductive material layer 16 which mainly contains a conductive material is formed between the positive electrode active material layer 14 and the separator. A porosity of the conductive material layer 16 is 35% or more and 55% or less |
申请公布号 |
EP2819221(A4) |
申请公布日期 |
2015.07.29 |
申请号 |
EP20130752148 |
申请日期 |
2013.01.29 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TAKAHATA, KOJI;OCHIAI, AKIHIRO |
分类号 |
H01M4/131;B60L11/18;H01M2/10;H01M2/34;H01M4/02;H01M4/36;H01M4/62;H01M10/052;H01M10/0525;H01M10/0567;H01M10/058;H01M10/0587;H01M10/42 |
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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