发明名称 |
Secondary battery having a sealing gasket with concave and convex portions |
摘要 |
A secondary battery includes an electrode assembly having a positive electrode, a negative electrode and a separator interposed between the positive and negative electrodes and a container for receiving the electrode assembly inside thereof. The secondary battery also includes a cap assembly fixed to the container to seal the container and a gasket disposed between the container and the cap assembly. The gasket has at least one concavo-convex portion on a surface contacting the container and/or the cap assembly. This improved gasket structure enhances the air tightness of the secondary battery.
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申请公布号 |
US7544440(B2) |
申请公布日期 |
2009.06.09 |
申请号 |
US20050251295 |
申请日期 |
2005.10.14 |
申请人 |
SAMSUNG SDI CO., LTD. |
发明人 |
CHEON SANG-EUN;KIM JAE-KYUNG;YOON HYE-WON;YOO SEOK-YOON |
分类号 |
H01M2/00;H01M2/08;H01M2/38;H01M2/40 |
主分类号 |
H01M2/00 |
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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