发明名称 |
RECTANGULAR SECONDARY BATTERY |
摘要 |
A rectangular secondary battery (1) includes a current interrupting portion (60) disposed in a current path between a collector plate (21) connected to a rolled electrode group (40) and an external terminal (61) disposed outside a battery container (2) and configured to interrupt the current path when an internal pressure of the battery container (2) is increased. The current interrupting portion (60) has a diaphragm (68) electrically connected to the external terminal (61) and deformed when the internal pressure of the battery container (2) is increased, a connection plate (24) connected to the diaphragm and disconnected from the diaphragm by the deformation of the diaphragm, and a connecting portion (23) connecting the connection plate and collector plate. A rigidity of the connecting portion (23) is lower than that of the collector plate (21). |
申请公布号 |
EP3089240(A1) |
申请公布日期 |
2016.11.02 |
申请号 |
EP20130900479 |
申请日期 |
2013.12.25 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
SAWADA KEISUKE;URANO KAZUAKI;TSUNAKI TAKURO |
分类号 |
H01M2/34;H01M2/04;H01M2/12;H01M2/26 |
主分类号 |
H01M2/34 |
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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