公开(公告)号：US20180269694A1

公开(公告)日：2018-09-20

申请号：US15764463

申请日：2017-03-21

Applicant: LG CHEM, LTD.

Inventor： Ho Chol NAM ,  Seog Jin YOON ,  Dong Hyun KIM ,  Hak In KIM

IPC: H02J7/00 ,  H01M10/44 ,  G01R31/36

Abstract: The present disclosure relates to a method and system for stabilizing a battery through cell balancing of a battery pack, and more particularly, to a method and system for performing battery cell balancing and determining a control situation through a feedback for the cell balancing, thereby improving reliability for the battery cell balancing and enabling a proactive measure for a battery abnormality

公开(公告)号：US20200244080A1

公开(公告)日：2020-07-30

申请号：US16652537

申请日：2018-08-24

Applicant: LG CHEM, LTD

Inventor： Ho Chol NAM ,  Dong Hyun KIM ,  Hak In KIM

IPC: H02J7/00 ,  H01M10/42

Abstract: A battery pack in accordance with an exemplary embodiment, which is booted when coupled to an external apparatus, includes: a connector which is a member configured to connect the external apparatus and the battery pack; and a booting circuit configured to start operation of the battery pack when the battery pack and the external apparatus are coupled. The connector includes: a (+) output terminal connected to a (+) output terminal of the battery pack; a coupling check terminal configured to check whether the external apparatus and the battery pack are coupled; a data transceiving terminal configured to tranceive data between the external apparatus and the battery pack; and a (−) output terminal connected to a (−) output terminal of the battery pack.

公开(公告)号：US20190052099A1

公开(公告)日：2019-02-14

申请号：US16076461

申请日：2017-10-17

Applicant: LG CHEM, LTD.

Inventor： Sung Ju HONG ,  Ho Chol NAM ,  Hak In KIM ,  Seog Jin YOON

IPC: H02J7/00 ,  H02J7/04

Abstract: The present invention relates to an apparatus and method for providing a charging voltage, and more particularly, to an apparatus and method for providing a charging voltage, which rapidly provide a stable charging voltage to a corresponding cell through a cell balancing voltage source that is one of two separate charging voltage sources, when cell balancing is necessary.

公开(公告)号：US20190044194A1

公开(公告)日：2019-02-07

申请号：US16076445

申请日：2017-10-17

Applicant: LG CHEM, LTD.

Inventor： Sung Ju HONG ,  Ho Chol NAM ,  Hak In KIM ,  Seog Jin YOON

IPC: H01M10/44 ,  H02J7/00 ,  H02J7/02

Abstract: The present invention relates to a cell balancing system and method, and more particularly, to a cell balancing system and method capable of supplying a charging voltage through two separately configured charging voltage sources and stably performing cell balancing by supplying a proper charging voltage to a corresponding cell through an individually configured switch in each cell, when the cell balancing is necessary.

公开(公告)号：US20180294664A1

公开(公告)日：2018-10-11

申请号：US15578000

申请日：2016-08-04

Applicant: LG CHEM, LTD.

Inventor： Sung Ju HONG ,  Ho Chol NAM ,  Dong Hyun KIM ,  Hak In KIM

IPC: H02J7/00

Abstract: The present invention relates to a battery pack charging control device that wakes up a micro control unit (MCU) in operation in a sleep mode, while a battery pack is in a constant voltage charged state, the battery pack charging control device including an analog front end (AFE) for changing before the MCU operates in the sleep mode, an over-voltage protection level value to a higher value than a current value, generating an over-voltage trip signal and delivering the over-voltage trip signal to the MCU in operation in the sleep mode to control to wake up the MCU in operation in the sleep mode, when an increased voltage value of the battery pack due to connection of an external charger is equal to or greater than the changed over-voltage protection level value.