公开(公告)号：US20250030099A1

公开(公告)日：2025-01-23

申请号：US18715455

申请日：2022-12-20

Applicant: LG Energy Solution, Ltd.

Inventor： Sun Jung Lee ,  Tae Kyeong Lee ,  Nam Hoon Hur ,  Ju Hwan Shin ,  Hyoung Suk Lee

IPC: H01M50/242 ,  H01M50/211 ,  H01M50/271 ,  H01M50/507 ,  H01M50/519

Abstract: The present invention relates to a logical cell, a secondary battery module, and a secondary battery pack including the same, and particularly relates to a logical cell, in which a pouch cell assembly in which a plurality of pouch cells are arranged is accommodated inside a case in a longitudinal direction to form a logical cell, and a reinforcing plate is provided at one side or the other side of the case to reinforce rigidity, thereby facilitating handling of the pouch cell and maximizing space utilization, and simultaneously, preventing the side that is vulnerable to an impact from being damaged so that the secondary battery is improved in safety, a secondary battery module, and a secondary battery pack including the same.

公开(公告)号：US20250030097A1

公开(公告)日：2025-01-23

申请号：US18713555

申请日：2023-09-25

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Dae Gil KIM ,  Jong Hwa CHOI ,  Chae Won LIM ,  Hyoung Suk LEE

IPC: H01M50/24 ,  H01M10/658 ,  H01M50/505 ,  H01M50/55

Abstract: A battery module includes a module housing accommodating a plurality of battery cells; a pair of high-voltage terminals provided on the front of the module housing; a pair of module lifting holes provided between the high-voltage terminals; a thermal barrier that wraps around part of the front of the module housing including the high-voltage terminals, with fastening holes penetrating through its upper surface; and a fastening member installed by penetrating through the module lifting hole and fastening hole to secure the thermal barrier to the module lifting hole.

公开(公告)号：US20250030082A1

公开(公告)日：2025-01-23

申请号：US18909001

申请日：2024-10-08

Applicant: LG Energy Solution, Ltd.

Inventor： Gwan Woo Kim ,  Seung Ryul Baek ,  Junyeob Seong

IPC: H01M10/653 ,  H01M10/625 ,  H01M10/647 ,  H01M50/211

Abstract: A battery module includes a cell stack including a plurality of battery cells, and a module frame accommodating the cell stack, a bottom part of the module frame includes a first area, a second area, and a third area in which respective thermally conductive resin layers are formed, and the thermally conductive resin layers of the first area and the second area are each thicker than the thermally conductive resin layer of the third area.

公开(公告)号：US20250030076A1

公开(公告)日：2025-01-23

申请号：US18711571

申请日：2023-06-26

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jeong Mi CHOI ,  Doo Kyung YANG ,  Min Seo KIM ,  Eunkyu SEONG ,  Yeon Jun KIM ,  Hyemin YU

IPC: H01M10/54 ,  H01M4/02 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0525

Abstract: The present disclosure relates to a recycled positive electrode active material, a method of producing the recycled positive electrode active material, and a secondary battery including the same. The recycled positive electrode active material, including: 60 mol % or more of Ni, 250 mg/kg or less of fluorine (F), and having a crystallite size of 122 nm or less, where the recycled positive electrode active material is one or more selected from the group consisting of a lithium nickel oxide (LNO)-based positive electrode active material, a nickel·cobalt·manganese (NCM)-based positive electrode active material, a nickel·cobalt·aluminum (NCA)-based positive electrode active material, and a nickel·cobalt·manganese·aluminum (NCMA)-based positive electrode active material.

公开(公告)号：US20250027984A1

公开(公告)日：2025-01-23

申请号：US18711243

申请日：2023-01-05

Applicant: LG Energy Solution, Ltd.

Inventor： Jang Hyeok Choi ,  Tae Youn Kim ,  Minwoo Kim ,  Yeondo Park

IPC: G01R31/14 ,  G01R31/3835 ,  H01M10/42 ,  H01M10/48

Abstract: A first insulation resistance monitoring circuit includes a first resistor connected between a positive terminal of a battery pack and a node, and connected between the positive terminal of the battery pack and a ground terminal of an external device, and has a first monitoring terminal. A second insulation resistance monitoring circuit is connected between the ground terminal and the negative terminal of the battery pack, and has a second monitoring terminal. A voltage monitoring circuit is connected between the node and the negative terminal of the battery pack, and has a third monitoring terminal. A processor measures the voltage of the battery pack.

公开(公告)号：US12206103B2

公开(公告)日：2025-01-21

申请号：US17608336

申请日：2020-07-01

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jihoon Ahn ,  Yun Kyoung Kim ,  Taek Gyoung Kim ,  Eun Kyoung Park ,  Suenghoon Han

IPC: H01M4/52 ,  C01G49/00 ,  H01M4/02 ,  H01M4/62 ,  H01M10/0525

Abstract: Disclosed is a modified iron oxyhydroxynitrate including iron oxyhydroxynitrate and hydrogen phosphate ions adsorbed on a surface thereof. Also disclosed is a method for preparing the same, a positive electrode for a lithium secondary battery including the modified iron oxyhydroxynitrate as a positive electrode additive, and a lithium secondary battery including the same.

公开(公告)号：US20250023214A1

公开(公告)日：2025-01-16

申请号：US18713949

申请日：2023-09-26

Applicant: LG Energy Solution, Ltd.

Inventor： Seongmo Koo ,  Young Soo Kim ,  Kwan Soo Lee ,  Byeongjoon Lee

IPC: H01M50/595 ,  H01M10/0569 ,  H01M10/0587 ,  H01M50/586

Abstract: A jelly-roll type electrode assembly, includes a first electrode, a first separator, a second electrode, and a second separator sequentially stacked and would. A swelling tape is attached on at least one surface of the first electrode. The first electrode includes a first end portion from which winding begins and a second end portion opposite the first end portion at which the winding ends. The swelling tape is attached such that a first end portion of the swelling tape aligns with the first end portion of the first electrode.

公开(公告)号：US20250020602A1

公开(公告)日：2025-01-16

申请号：US18714434

申请日：2023-09-21

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Joon Hyeon KANG ,  Kyun ll RAH ,  Se Mi PARK

IPC: G01N23/2055 ,  H01M4/02 ,  H01M4/36 ,  H01M4/38 ,  H01M4/583

Abstract: An evaluation method of a negative electrode active material for secondary battery includes measuring an X-ray diffraction of a battery cell stored in a charged state; calculating intensity integrals of extracted diffraction peaks, where the extracted diffraction peaks are extracted from X-ray diffraction peaks for a carbon interlayer compounds and a decomposed products contained respectively in a negative electrode active layer of a negative electrode from the measured X-ray diffraction; calculating a reaction rate constant k1 for the carbon interlayer compounds or a reaction rate constant k−1 for the decomposed products of the carbon interlayer compounds from the calculated intensity integral; and evaluating a material suitability of the negative electrode active material contained in the negative electrode active layer based on the calculated reaction rate constant.

公开(公告)号：US12199421B2

公开(公告)日：2025-01-14

申请号：US17926827

申请日：2021-06-17

Applicant: LG Energy Solution, Ltd.

Inventor： Sung Tack Hwang ,  Won Tae Lee ,  Jae Hyuk Cha

IPC: H02H7/18 ,  H01M10/42 ,  H01M50/583 ,  H02H1/00

Abstract: The present invention relates to a battery disconnect unit including a fuse connected to a battery pack, the fuse being configured to interrupt overcurrent of the battery pack, at least one sensor configured to measure voltage or current of the battery pack, at least one relay configured to connect or disconnect the battery pack and the load to or from each other based on a value of the voltage or the current measured by the sensor, a housing configured to allow the fuse, the sensor, and the relay to be mounted therein, and a moving plate configured to fix the relay and the sensor to the housing, the position of the moving plate being changeable depending on sizes of the relay and the sensor.

公开(公告)号：US12199288B2

公开(公告)日：2025-01-14

申请号：US17430804

申请日：2020-11-04

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Yo Han Kwon ,  Il Hong Kim ,  Min Chul Jang

IPC: H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M4/66 ,  H01M4/74 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/531 ,  H01M4/02

Abstract: The present invention relates to an anode including multiple current collectors juxtaposed in parallel, and a secondary battery comprising same, wherein the anode enables providing a high-capacity secondary battery while suppressing volume changes due to a silicone component-containing active material employed therein.