公开(公告)号：US20230268762A1

公开(公告)日：2023-08-24

申请号：US18010367

申请日：2021-07-20

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jae Kuk KWON ,  Jin Hyun LEE

IPC: H02J7/34 ,  H02J7/00 ,  G01R19/165 ,  G01R31/3835

CPC classification number: H02J7/342 ,  H02J7/0013 ,  H02J7/0063 ,  H02J7/00032 ,  H02J7/007182 ,  G01R19/16542 ,  G01R31/3835

Abstract: The present invention relates to a system and method for controlling inter-battery charging/discharging of a dual battery, and relates to a system and method for controlling charging/discharging between batteries to prevent a problem in which a specific battery is deteriorated due to charging/discharging between batteries due to a voltage difference when the voltage difference between the batteries of the dual batteries installed in the external system is within the appropriate range.

公开(公告)号：US20230155261A1

公开(公告)日：2023-05-18

申请号：US17915858

申请日：2021-07-29

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sang Jin KIM ,  Jin Hyun LEE ,  Jae Young JANG ,  Dae Ho JUNG

IPC: H01M50/574 ,  H01M50/105 ,  H01M4/66

CPC classification number: H01M50/574 ,  H01M50/105 ,  H01M4/661

Abstract: Discussed is a battery pack including a battery cell that can include a pair of electrode leads including a positive electrode lead and a negative electrode lead, a pack housing configured to receive the battery cell therein, and a protection circuit module (PCM) having a protection circuit formed on a printed circuit board (PCB), the protection circuit being configured to control operation of the battery cell, wherein the pair of electrode leads may be directly bonded to a surface copper foil layer of the PCB. The pair of electrode leads may be directly bonded to the surface copper foil layer of the PCB by a laser welding.

公开(公告)号：US20230155225A1

公开(公告)日：2023-05-18

申请号：US17915851

申请日：2021-11-19

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jae Young JANG ,  Jin Hyun LEE ,  Sang Jin KIM

IPC: H01M50/204 ,  B29C65/08 ,  B29C65/56

CPC classification number: H01M50/204 ,  B29C65/08 ,  B29C65/56 ,  B29L2031/7146

Abstract: Discussed is a battery pack case configured to receive a plurality of battery cells, the battery pack case including a first case and a second case coupled to each other through and engagement between first case and the second case. A projecting portion is on a coupling portion of the first case at a middle part of the first case in a thickness direction to project therefrom, a grooved portion is in a coupling portion of the second case at a middle part of the second case in a thickness direction thereof such that the projecting portion is inserted into the grooved portion, and a uniform gap between the outside of the projecting portion of the first case and the outside of the grooved portion of the second case in the state in which the first case and the second case are coupled and thermally fused to each other.

公开(公告)号：US20230139879A1

公开(公告)日：2023-05-04

申请号：US17915897

申请日：2021-12-21

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Hyuk Joon SON ,  Jin Hyun LEE ,  Jae Young JANG ,  Jae Hyung KIM ,  Dae Ho JUNG

IPC: H01M50/284 ,  H01R12/71 ,  H01M50/204

Abstract: Discussed is a battery pack which may include a plurality of battery cells, a pack case configured to receive the plurality of battery cells therein, the pack case including a lower case and an upper cover, a connector located in the pack case, the connector being configured to electrically connect the battery pack to a device, and a printed circuit board (PCB) in the pack case, the connector being coupled to one surface of the PCB, wherein the upper cover includes a plurality of pin insertion ports configured to allow a device pin to be inserted into the connector therethrough, and wherein the upper cover is provided at an inside thereof with a support member located adjacent the connector, the support member being configured to restrict deformation of the connector.