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1. 发明申请

WO2012047053A3 PRISMATIC BATTERY HAVING ELECTROLYTE INJECTION PORT WITH SUPERIOR SEALING PERFORMANCE 审中-公开
标题翻译：具有优良密封性能的电解液注入口的PRISMATIC电池
公开(公告)号：WO2012047053A3
公开(公告)日：2012-06-21
申请号：PCT/KR2011007431
申请日：2011-10-07
申请人： LG CHEMICAL LTD , KIM HONG KUE , LEE SEUNGTAE , LEE EUN JUNG , KIM HAKKYUN
发明人： KIM HONG KUE , LEE SEUNGTAE , LEE EUN JUNG , KIM HAKKYUN
IPC分类号： H01M2/08 , H01M2/04 , H01M2/36
CPC分类号： H01M2/361 , H01M2/0217 , H01M2/365
摘要： The present invention relates to a secondary battery provided with an electrode assembly, which is embedded in a prismatic can, wherein the electrolyte injection port of a base plate, which is mounted on the open top of the prismatic can, comprises an upper portion having a structure of a chamfer with the diameter of the inner surface decreasing in the bottom direction, and a lower portion with a non-chamfer structure which is formed in continuation with the chamfer structure. The present invention provides a secondary battery in which the sealing member, which is modified into the shape of the electrolyte injection port, comes into close contact with the chamfer structure due to shear stress between the chamfer structure and the sealing member, when the sealing member is press-fitted into the electrolyte injection port, and performs sealing by means of friction force with the non-chamfer structure. The secondary battery, according to the present invention, reduces the rate of defect and can enhance sealing performance even without a welding process.
摘要翻译：本发明涉及一种设置有电极组件的二次电池，该电极组件嵌入在棱柱形罐中，其中安装在棱柱形罐的开口顶部上的底板的电解质注入口包括具有内表面的直径在底部方向上减小的倒角的结构以及具有与倒角结构连续形成的非倒角结构的下部。本发明提供一种二次电池，其中修改为电解质注入口形状的密封构件由于斜面结构和密封构件之间的剪切应力而与斜面结构紧密接触，当密封构件被压配到电解质注入口中，并且通过与非倒角结构的摩擦力来执行密封。根据本发明的二次电池即使在没有焊接工艺的情况下也降低缺陷率并且可以提高密封性能。

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