公开(公告)号：US20210050629A1

公开(公告)日：2021-02-18

申请号：US17085728

申请日：2020-10-30

Applicant: LG CHEM, LTD.

Inventor： Jin Oh YANG ,  Young Su SON ,  Suk Jin SONG ,  Jae Young JANG

IPC: H01M10/42 ,  H01M2/10 ,  H01M10/48

Abstract: A protection circuit board includes a printed circuit board having a circuit is printed on a board formed from an electrically insulating material and two or more connection components disposed on at least one surface of the printed circuit board and are coupled to an electrode terminal of a secondary battery. Additionally, at least one inspection slot having a shape recessed within the connection component and extending to a portion that the electrode terminal of the secondary battery is coupled thereto and is defined in the connection component. Also, an inspection device and inspection method for inspecting a welded state between a protection circuit board and an electrode terminal among a pair of electrode terminals of a battery pack are provided.

公开(公告)号：US20200185785A1

公开(公告)日：2020-06-11

申请号：US16791233

申请日：2020-02-14

Applicant: LG CHEM, LTD.

Inventor： Jin Oh YANG ,  Young Su SON ,  Suk Jin SONG ,  Jae Young JANG

IPC: H01M10/42 ,  H01M10/0525 ,  H01M2/26 ,  H01M2/02 ,  H01M2/30

Abstract: Provided is a plate-shaped battery cell in which electrode leads are located at one side end portion of a battery case including an excess sealing portion of a thermally-welded or adhesive structure for sealing an electrode assembly. the battery cell includes: a Protection Circuit Module (PCM) assembly having one or more safety elements for preventing overcurrent, wherein the PCM assembly includes a PCM and a conductive lead plate for electrically connecting the electrode leads, wherein the lead plate includes: an electrode lead connection portion positioned at one side end portion of the lead plate for electrically connecting the PCM and the electrode lead; a PCM connection portion located at the other side end portion of the lead plate for connecting to a connection portion of a printed circuit board on which a protection circuit is formed; and a bent portion extending from the electrode lead connection portion to be bent to face the outer surface of the battery case in order to prevent damage to the battery case occurring during a process of connecting the electrode lead to the electrode lead connecting portion.

公开(公告)号：US20180019453A1

公开(公告)日：2018-01-18

申请号：US15555250

申请日：2016-10-27

Applicant: LG CHEM, LTD.

Inventor： Jin Oh YANG ,  Suk Jin SONG ,  Suk Hoon LEE ,  Yeon Ok YI

IPC: H01M2/10 ,  G06F1/16

CPC classification number: H01M2/1022 ,  G06F1/16 ,  G06F1/1635 ,  H01M2/1061 ,  H01M2/1094 ,  H01M2220/30

Abstract: A battery pack that is mounted to a laptop computer, wherein two or more battery cells that can be charged and discharged are housed in a pack case; the battery cells are cylindrical battery cells having a circular vertical cross-section; the pack case is configured with a lower case in which battery cells are received and an upper case that is coupled to the lower case in order to close and seal the battery cells; in the upper case, a thickness of an upper contact point portion that contacts an upper end external circumferential surface of the battery cells is 70% or less of that of the remaining portions of the upper case, and a first sheet is attached to an outer surface of the upper case corresponding to the upper contact point portion; and in the lower case, a thickness of a lower contact point portion that contacts a lower end external circumferential surface of the battery cells is 70% or less of that of the remaining portions of the lower case, and a second sheet is attached to an outer surface of the lower case corresponding to the lower contact point portion.

公开(公告)号：US20180123178A1

公开(公告)日：2018-05-03

申请号：US15812343

申请日：2017-11-14

Applicant: LG CHEM, LTD.

Inventor： Jin Oh YANG ,  Young Su SON ,  Suk Jin SONG ,  Jae Young JANG

IPC: H01M10/42 ,  H01M10/0525 ,  H01M2/26

CPC classification number: H01M10/425 ,  H01M2/021 ,  H01M2/0212 ,  H01M2/0217 ,  H01M2/0275 ,  H01M2/26 ,  H01M2/30 ,  H01M10/0525 ,  H01M2200/00

Abstract: Provided is a plate-shaped battery cell in which electrode leads are located at one side end portion of a battery case including an excess sealing portion of a thermally-welded or adhesive structure for sealing an electrode assembly. the battery cell includes: a Protection Circuit Module (PCM) assembly having one or more safety elements for preventing overcurrent, wherein the PCM assembly includes a PCM and a conductive lead plate for electrically connecting the electrode leads, wherein the lead plate includes: an electrode lead connection portion positioned at one side end portion of the lead plate for electrically connecting the PCM and the electrode lead; a PCM connection portion located at the other side end portion of the lead plate for connecting to a connection portion of a printed circuit board on which a protection circuit is formed; and a bent portion extending from the electrode lead connection portion to be bent to face the outer surface of the battery case in order to prevent damage to the battery case occurring during a process of connecting the electrode lead to the electrode lead connecting portion.