公开(公告)号：US20230130623A1

公开(公告)日：2023-04-27

申请号：US17908725

申请日：2021-10-22

Applicant: LG Energy Solution, Ltd.

Inventor： Min Kyung Kim ,  Jeong Min Lee ,  Hyung Jun Noh

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/38 ,  H01M4/62

Abstract: A negative electrode includes a negative electrode current collector, a first negative electrode active material layer disposed on the negative electrode current collector, and a second negative electrode active material layer disposed on the first negative electrode active material layer, wherein the second negative electrode active material layer includes a second negative electrode active material and a second conductive material, and the second negative electrode active material includes a silicon-based active material and a carbon-based active material, wherein the silicon-based active material includes SiOX (0≤X

公开(公告)号：US12153098B2

公开(公告)日：2024-11-26

申请号：US17919372

申请日：2022-02-07

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jae Woong Yoo ,  Sun Yong Shin ,  Jeong Min Lee

IPC: G01R31/52 ,  G01R19/165 ,  G01R19/25 ,  H01M10/42

Abstract: An apparatus for inspecting a failure of an electrode assembly before injecting an electrolyte includes a short-circuit tester configured to detect a short circuit of the electrode assembly by applying a predetermined voltage to a positive electrode and a negative electrode of the electrode assembly; a multimeter electrically connected to the short-circuit tester and configured to measure a voltage and a current of the electrode assembly over time; and a failure determination part connected to the multimeter and configured to monitor changes in voltage and current measured by the multimeter and determine a type of a failure of the electrode assembly from data on the changes in voltage and current over a predetermined period of time. A method of inspecting a failure of an electrode assembly using the same is also provided.

公开(公告)号：US20240219476A1

公开(公告)日：2024-07-04

申请号：US18288264

申请日：2022-09-30

Applicant: LG Energy Solution, Ltd.

Inventor： Yeo Kyung Yoon ,  Jeong Min Lee

IPC: G01R31/392 ,  G01R31/367 ,  G01R31/3835

CPC classification number: G01R31/392 ,  G01R31/3835 ,  G01R31/367

Abstract: A battery life prediction apparatus according to an embodiment disclosed herein includes a processor and memory having programmed thereon instructions that, when executed, are configured to cause the processor to obtain information about a charge end voltage of a battery corresponding to a charge protocol and predict a life of the battery corresponding to the charge protocol based on the information about the charge end voltage of the battery corresponding to the charge protocol.

公开(公告)号：US20230420721A1

公开(公告)日：2023-12-28

申请号：US18035883

申请日：2022-03-04

Applicant: LG Energy Solution, Ltd.

Inventor： Jeong Min Lee ,  Shin Hwa Lee ,  Jae Woong Yoo ,  Eun Kyeong Lim

IPC: H01M10/04 ,  B65G57/04

CPC classification number: H01M10/0404 ,  B65G57/04

Abstract: A system and method for manufacturing a secondary battery, in which air is suctioned in an opposite direction of a transfer direction inside a loading part to prevent a radical unit, which freely drops at an initial speed in the transfer direction, from colliding with the loading part, thereby reducing folding short defects that occur in a subsequent process.
The system for manufacturing the secondary battery includes a transfer part configured to transfer a radical unit, a loading part configured to allow the radical unit transferred by the transfer part to drop in a direction of gravity so as to load the radical unit, and an intake part configured to suction air inside an inner space of the loading part from a side surface of the loading part.

公开(公告)号：US20230307689A1

公开(公告)日：2023-09-28

申请号：US18031792

申请日：2022-02-21

Applicant: LG Energy Solution, Ltd.

Inventor： Eun Kyeong Lim ,  Jae Woong Yoo ,  Shin Hwa Lee ,  Jeong Min Lee

IPC: H01M10/04

CPC classification number: H01M10/0409

Abstract: A transfer device for a unit cell, which transfers a unit cell, in which electrodes and separators are stacked by a predetermined number, includes: a conveyor configured to travel in one direction and transfer the seated unit cell when the unit cell is seated; a first rail disposed at one side of the conveyor in parallel to the conveyor; and a second rail disposed at the other side of the conveyor in parallel to the conveyor, wherein a protrusion protrudes from a surface of each of the first rail and the second rail along the traveling direction of the unit cell, and the unit cell is supported by the protrusion and transferred while being transferred through the conveyor.