公开(公告)号：US10700324B2

公开(公告)日：2020-06-30

申请号：US15565854

申请日：2016-06-14

Applicant: LG CHEM, LTD.

Inventor： Cho Long Kim ,  Yong Su Choi ,  Sang Hun Kim ,  Sang Suk Jung ,  Won Pill Hwang ,  Yong Kim

IPC: H01M2/12 ,  H01M2/06 ,  H01M2/02 ,  H01M10/04 ,  H01M2/08

Abstract: The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.

公开(公告)号：US20200044203A1

公开(公告)日：2020-02-06

申请号：US16499557

申请日：2018-11-16

Applicant: LG Chem, Ltd.

Inventor： Soo Ji Hwang ,  Sang Hun Kim ,  Hyung Kyun Yu ,  Yong Su Choi ,  Na Yoon Kim ,  Min Hyeong Kang ,  Yong Kim

IPC: H01M2/02

Abstract: A method for a pouch film according to an embodiment of the present invention includes: a step of applying an adhesive on one surface of a first polymer layer; a step of depositing metal particles on the adhesive; a step of applying heat and a pressure to the deposited metal particles to sinter the metal particles and thereby forming a gas barrier layer; and a step of laminating a second polymer layer on one surface of the gas barrier layer.

公开(公告)号：US10319956B2

公开(公告)日：2019-06-11

申请号：US15524056

申请日：2015-11-19

Applicant: LG CHEM, LTD.

Inventor： Hyung Kyun Yu ,  Sang Hun Kim ,  Won Pill Hwang ,  Soo Ji Hwang ,  Sang Suk Jung

IPC: H01M2/02 ,  H01M2/08 ,  H01M10/052

Abstract: The present invention relates to a pouch case for a secondary battery and a pouch-type secondary battery comprising the same. More particularly, it relates to a pouch case for a secondary battery comprising an inner resin layer, a metal layer and an outer resin layer, wherein the inner resin layer comprises a porous non-woven fabric support having a plurality of pores and a polymer sealant filled in the pores of the non-woven fabric support; and a secondary battery comprising the same.

公开(公告)号：US20170288181A1

公开(公告)日：2017-10-05

申请号：US15471037

申请日：2017-03-28

Applicant: LG Chem, Ltd.

Inventor： Won Pill Hwang ,  Yong Su Choi ,  Sang Hun Kim ,  Sang Suk Jung ,  Cho Long Kim ,  Yong Kim

IPC: H01M2/02 ,  H01M4/587 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0565

CPC classification number: H01M2/0292 ,  H01M2/0212 ,  H01M2/0275 ,  H01M2/0277 ,  H01M2/028 ,  H01M2/0285 ,  H01M2/0287 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0565 ,  H01M2300/0082

Abstract: Provided are a lithium secondary battery, which includes an electrode assembly, a battery case accommodating the electrode assembly, a surface layer comprising an engineering plastic located on the outer side of the battery case, and lead terminals connected with the electrode assembly and drawn out of the battery case, and a method of fabricating the same.