US Patent 11189881 Pouch-shaped secondary battery comprising venting guidance device
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Patent abstract
Disclosed herein is a pouch-shaped secondary battery comprising a pouch-shaped battery case, an electrode assembly having a positive electrode, a separator, and a negative electrode that are sequentially stacked, the electrode assembly being received in the pouch-shaped battery case, and a venting guidance device located in the pouch-shaped battery case, the venting guidance device being configured to form a through-hole for gas discharge in the pouch-shaped battery case using an elastic member, the elastic member being configured to be actuated when a pressure in the pouch-shaped battery case reaches or exceeds a predetermined limit pressure.
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Patent Inventor Names
Dae Sik Choi0
Hyun Gyu Han0
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Official Website
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Patent Applicant
Patent Jurisdiction
Patent Number
111898810
Date of Patent
November 30, 2021
0Patent Application Number
164887490
Date Filed
July 9, 2018
0Official Website
Patent Primary Examiner
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US Patent 11189881 Pouch-shaped secondary battery comprising venting guidance device
Infobox
Is a
Patent applicant
Patent jurisdiction
Patent number
11189881
Date of patent
November 30, 2021
Patent application number
16488749
Date Filed
July 9, 2018
Patent primary examiner
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