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公开(公告)号：US20250070163A1
公开(公告)日：2025-02-27
申请号：US18724747
申请日：2023-10-26
Applicant: LG Energy Solution, Ltd.
Inventor： Dong Hyun Kim , Houng Sik Yoo , Jong Won Lee , Ji Hee Yoon , Gui Eum Yang , Sang Hoon Choy , Hyeon Choi , O Jong Kwon , Yong Hee Kang
Abstract: A positive electrode includes a current collector, a first positive electrode active material layer, and a second positive electrode active material layer. The first positive electrode active material layer is formed on the current collector and the second positive electrode active material layer is formed on the first positive electrode active material layer. The first and second positive electrode active material layers each include lithium iron phosphate, a fluorine-based binder, a rubber-based binder, and a conductive material. The rubber-based binder includes a first hydrogenated nitrile butadiene rubber and a second hydrogenated nitrile butadiene rubber A ratio (P2/P1) of the weight P2 of fluorine contained in the second positive electrode active material layer to the weight P1 of fluorine contained in the first positive electrode active material layer is 1 or less.
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公开(公告)号：US20240421281A1
公开(公告)日：2024-12-19
申请号：US18818999
申请日：2024-08-29
Applicant: LG Energy Solution, Ltd.
Inventor： Jin Hwan Shin , Sang Hoon Choy , Shin Wook Jeon , Young Kuk Ko
IPC: H01M4/04
Abstract: A method and apparatus for coating an electrode is disclosed herein. In some embodiments, an apparatus for coating an electrode slurry includes a coating die configured to coat an electrode slurry on one surface of a current collector, a thickness measuring sensor spaced apart from the current collector by a predetermined interval and configured to measure a thickness of the coated electrode slurry in real time after coating by the coating die; and a controller which controls a coated amount of the electrode slurry in real time according to the measured thickness.
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公开(公告)号：US20240264089A1
公开(公告)日：2024-08-08
申请号：US18276503
申请日：2022-04-07
Applicant: LG Energy Solution, Ltd.
Inventor： Dong Hyeok Shin , Sang Hoon Choy , Jeong Soo Seol , In Sang Cho
CPC classification number: G01N21/8914 , H01M4/04 , G01N2021/888
Abstract: A marking system is provided for identifying defects of an electrode sheet including that includes an active material layer coated with an electrode active material and a non-coating portion disposed at one side in a width direction of the active material layer. The marking system for identifying the defects of the electrode sheet may include: a vision sensor configured to detect the defects of the electrode sheet; a heater disposed behind the vision sensor in a moving direction of the electrode sheet, the heater being configured to heat the non-coating portion when the defects are detected by the vision sensor; a marker configured to mark ink on an area corresponding to each defect on the non-coating portion heated by the heater; and a blower disposed behind the marker in the moving direction of the electrode sheet to dry the ink on the area.
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4.发明公开公开(公告)号：US20230420633A1
公开(公告)日：2023-12-28
申请号：US18035431
申请日：2022-05-12
Applicant: LG Energy Solution, Ltd.
Inventor： Jung Eun Lee , Hwan Han Kim , Jaehyuk Choi , Sang Hoon Choy , Jeong Soo Seol , Dong Chan Kim , Su Ho Jeon
IPC: H01M4/04
CPC classification number: H01M4/0409 , H01M4/0435 , H01M4/0471
Abstract: The present disclosure relates to an electrode rolling apparatus including a non-coating portion pressing unit that rolls a non-coating portion of an electrode substrate and an electrode rolling method using the same, and can prevent a swell from occurring in the non-coating portion region during the process of rolling the electrode substrate and increase the efficiency of the manufacturing process.
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公开(公告)号：US11850626B2
公开(公告)日：2023-12-26
申请号：US17502814
申请日：2021-10-15
Applicant: LG Energy Solution, Ltd.
Inventor： Chang Hun Lee , Seong Wook Hong , Dong Hun Song , Byoung Hoon Ahn , Chae Gyu Lee , Sang Hoon Choy , Shin Wook Jeon
CPC classification number: B05C5/0254 , B05D1/26 , H01M4/0402
Abstract: A die for coating an insulating liquid may include a die body configured to be positioned on a current collector with a certain space and discharge an insulating liquid; and a discharge portion configured to be formed on one surface where the insulating liquid of the die body is discharged, and form a discharge path and a discharge port where the insulating liquid is discharged, wherein the discharge portion includes a first discharge portion positioned at a front region side of a coating direction of the insulating liquid, and a second discharge portion positioned at a rear region side of the coating direction of the insulating liquid, an insulating liquid discharge path is formed between the first discharge portion and the second discharge portion, and an insulating liquid discharge port is formed between an end of the first discharge portion and an end of the second discharge portion.
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Patent Agency Ranking
公开(公告)号：US20230110084A1
公开(公告)日：2023-04-13
申请号：US17908651
申请日：2021-11-04
Applicant: LG Energy Solution, Ltd.
Inventor： Jin Hwan Shin , Sang Hoon Choy , Shin Wook Jeon , Young Kuk Ko
IPC: H01M4/04
Abstract: A method and apparatus for coating an electrode is disclosed herein. In some embodiments, an apparatus for coating an electrode slurry includes a coating die configured to coat an electrode slurry on one surface of a current collector, a thickness measuring sensor spaced apart from the current collector by a predetermined interval and configured to measure a thickness of the coated electrode slurry in real time after coating by the coating die; and a controller which controls a coated amount of the electrode slurry in real time according to the measured thickness.
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公开(公告)号：US20220134379A1
公开(公告)日：2022-05-05
申请号：US17502814
申请日：2021-10-15
Applicant: LG Energy Solution, Ltd.
Inventor： Chang Hun Lee , Seong Wook Hong , Dong Hun Song , Byoung Hoon Ahn , Chae Gyu Lee , Sang Hoon Choy , Shin Wook Jeon
Abstract: A die for coating an insulating liquid may include a die body configured to be positioned on a current collector with a certain space and discharge an insulating liquid; and a discharge portion configured to be formed on one surface where the insulating liquid of the die body is discharged, and form a discharge path and a discharge port where the insulating liquid is discharged, wherein the discharge portion includes a first discharge portion positioned at a front region side of a coating direction of the insulating liquid, and a second discharge portion positioned at a rear region side of the coating direction of the insulating liquid, an insulating liquid discharge path is formed between the first discharge portion and the second discharge portion, and an insulating liquid discharge port is formed between an end of the first discharge portion and an end of the second discharge portion.
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公开(公告)号：US20240170636A1
公开(公告)日：2024-05-23
申请号：US18281490
申请日：2022-10-06
Applicant: LG Energy Solution, Ltd.
Inventor： Won Seob Song , Hwan Han Kim , Sang Hoon Choy , Jeong Soo Seol , Bumhyuk Lee
CPC classification number: H01M4/0435 , B30B3/005 , B30B3/04 , B30B11/165 , B30B11/18
Abstract: An electrode manufacturing device that applies pressure to an electrode containing a coating part and a non-coating part is provided. The electrode manufacturing device includes: a first pressure roll that applies pressure to the non-coating part; a second pressure roll that applies pressure to the coating part; and a connection part that penetrates through the center of the first pressure roll and the center of the second pressure roll, respectively, wherein a difference between a radius of the first pressure roll and a radius of the second pressure roll is equal to or smaller than a step difference between the coating part and the non-coating part.
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公开(公告)号：US11819876B2
公开(公告)日：2023-11-21
申请号：US17431561
申请日：2020-05-12
Applicant: LG Energy Solution, Ltd.
Inventor： Ki Tae Kim , Do Hyun Lee , Taek Soo Lee , Cheolwoo Kim , Sang Hoon Choy
CPC classification number: B05C5/0254 , B05C1/0813 , B05C5/0241 , B05C5/0245 , H01M4/0404 , H01M4/0409 , B05C9/06
Abstract: The present disclosure relates to a slot die coating apparatus for coating an electrode active material slurry onto an electrode collector, the slot die coating apparatus including a coating roller, a die comprising a lower discharge opening, through which a first electrode active material slurry is discharged, and an upper die located on the upper side of the lower die and having an upper discharge opening, through which a second electrode active material slurry is discharged, and an upper air vent may be installed in the upper die and a lower air vent may be installed in the lower die.
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10.发明公开公开(公告)号：US20230343918A1
公开(公告)日：2023-10-26
申请号：US17908444
申请日：2021-10-08
Applicant: LG Energy Solution, Ltd.
Inventor： Hyun Woo Choi , Sang Hoon Choy , Dong Hun Song , Shin Wook Jeon , Chang Hun Lee
IPC: H01M4/04 , H01M50/105
CPC classification number: H01M4/0404 , H01M4/0471 , H01M50/105
Abstract: The present technology relates to an electrode manufacturing system, and an electrode manufacturing method using the same. According to the present technology, it is possible to uniformly second-coating an electrode slurry as an electrode current collector, which has gone through electrode slurry first coating and drying processes, passes through a heat pipe guide roller.
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