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公开(公告)号：US20170133707A1
公开(公告)日：2017-05-11
申请号：US15298974
申请日：2016-10-20
Applicant: LG CHEM, LTD.
Inventor： Hyung Seok HAN , Sang Suk JUNG , Hyung Kyun YU , Ki Hoon PAENG , Ji Hoon LEE , Soo Ji HWANG , Min Hyeong KANG
CPC classification number: H01M10/0436 , H01M2/0207 , H01M10/04 , H01M2220/30
Abstract: Provided is a secondary battery. The secondary battery includes a pouch case provided with an accommodation part accommodating an electrode assembly and a gas pocket part collecting a gas generated in the accommodation part by the electrode assembly; and a clamp device coupled between the accommodation part and the gas pocket part to seal a gap between the accommodation part and the gas pocket part.
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公开(公告)号：US20180198109A1
公开(公告)日：2018-07-12
申请号：US15862029
申请日：2018-01-04
Applicant: LG CHEM, LTD.
Inventor： Sang Hun KIM , Yong KIM , Min Hyeong KANG , Cho Long KIM , Hyung Kyun YU , Ji Hoon LEE , Yong Su CHOI , Soo Ji HWANG
CPC classification number: H01M2/345 , H01M2/0262 , H01M2/0275 , H01M2/0287 , H01M2/06 , H01M2/22 , H01M2/26 , H01M2/30 , H01M10/0413 , H01M10/0585 , H01M2200/20 , H01M2220/20
Abstract: A battery cell includes an electrode assembly and a battery case. The electrode assembly includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The battery case includes an upper case and a lower case, at least one of the upper case and the lower case being provided with a receiving part, in which the electrode assembly is mounted. One end of each of electrode tabs extending from electrode plates of the electrode assembly is coupled to a corresponding end of an electrode lead, which protrudes outward from the battery case. The electrode lead is provided with at least one notch part configured to rupture in response to expansion deformation of the battery case when the pressure in the battery cell increases to achieve the electrical cutoff of the battery.
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