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公开(公告)号：US20210036269A1
公开(公告)日：2021-02-04
申请号：US16982353
申请日：2019-12-06
申请人： LG Chem, Ltd.
发明人： Jae Ho Lee , Yong Su Choi , Sang Hun Kim , Hyung Kyun Yu , Na Yoon Kim
摘要： A venting device for insertion into a sealing part of a pouch of a secondary battery includes: a housing configured to be inserted between two surfaces of the sealing part so as to be sealed together with the sealing part; a sheet disposed in the housing and defining a passage through which an inside and an outside of the pouch are configured to communicate with each other; a plate spring configured to open and close the passage according to an internal pressure of the pouch and made of a metal having elasticity; and a ball disposed between the sheet and the plate spring so as to contact or be spaced apart from the sheet at an outlet-side of the passage, thereby opening and closing the passage, wherein the ball has a hemispherical shape to be attached to an inner surface of the plate spring.
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公开(公告)号：US11581600B2
公开(公告)日：2023-02-14
申请号：US16982353
申请日：2019-12-06
申请人： LG Chem, Ltd.
发明人： Jae Ho Lee , Yong Su Choi , Sang Hun Kim , Hyung Kyun Yu , Na Yoon Kim
IPC分类号： H01M50/10 , H01M50/30 , H01M50/107 , H01M50/105 , H01M50/333
摘要： A venting device for insertion into a sealing part of a pouch of a secondary battery includes: a housing configured to be inserted between two surfaces of the sealing part so as to be sealed together with the sealing part; a sheet disposed in the housing and defining a passage through which an inside and an outside of the pouch are configured to communicate with each other; a plate spring configured to open and close the passage according to an internal pressure of the pouch and made of a metal having elasticity; and a ball disposed between the sheet and the plate spring so as to contact or be spaced apart from the sheet at an outlet-side of the passage, thereby opening and closing the passage, wherein the ball has a hemispherical shape to be attached to an inner surface of the plate spring.
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