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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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2.发明公开公开(公告)号：US20230170458A1
公开(公告)日：2023-06-01
申请号：US17914964
申请日：2021-11-26
Applicant: LG Energy Solution, Ltd.
Inventor： Chang Hun Lee , Seong Wook Hong , Dong Hun Song , Sang Hoon Choy , Shin Wook Jeon
CPC classification number: H01M4/0404 , H01M50/59 , B05C11/1005 , B05C5/0254
Abstract: An insulation-coating overlay control system, an electrode plate for a secondary battery, and an insulation-coating overlay control method are provided. I system includes an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate along a boundary part. The coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon. An insulation-coating width measuring means is configured to measure an overlay width. An insulation coater moving means is configured to move the insulation coater and a controller is configured to control the insulation coater moving means to adjust the overlay width by comparing the measured overlay width with a predetermined overlay width setting range or an overlay width reference value.
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公开(公告)号：US20230143349A1
公开(公告)日：2023-05-11
申请号：US17913014
申请日：2021-11-25
Applicant: LG Energy Solution, Ltd.
Inventor： Jin Young Son , Eun Hoe Jeong , Sang Hoon Choy , Shin Wook Jeon , Young Kuk Ko
CPC classification number: F26B21/10 , F26B21/004 , F26B3/283 , H01M4/0471 , F26B3/30
Abstract: A system for drying an electrode includes: an oven which applies hot air and radiant heat to an electrode sheet; and a controller which receives information on drying standby time, and controls an amount of heat supplied into the oven. Herein, the controller controls to supply a reduced amount of heat to the oven during an initial drying time right after the supply of the electrode sheet after the drying standby time.
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公开(公告)号：US20230118784A1
公开(公告)日：2023-04-20
申请号：US17915649
申请日：2021-12-22
Applicant: LG Energy Solution, Ltd.
Inventor： Seong Wook Hong , Dong Hun Song , Hyun Woo Choi , Sang Hoon Choy , Shin Wook Jeon
IPC: H01M4/04
Abstract: An electrode slurry coating system and a method of using the same to coat a current collector layer are disclosed herein. In some embodiments, the electrode slurry coating system includes a supply tank, a supply line having a control valve and branching into at least three sub-supply lines at one end thereof, an electrode slurry slot die having a manifold, a coating roller, and a temperature sensor, wherein the temperature is sensor configured to measure the temperature of the electrode slurry discharged from the electrode slurry slot die, and wherein the control valve is configured to control the flow rate of the electrode slurry in response to a temperature of the electrode slurry measured by the temperature sensor.
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5.发明申请公开(公告)号：US20250105253A1
公开(公告)日：2025-03-27
申请号：US18730216
申请日：2023-09-15
Applicant: LG Energy Solution, Ltd.
Inventor： Taek Soo Lee , Jin Ho Cho , Jong Su Yoon , Shin Wook Jeon , Young Gon Kim
IPC: H01M4/133 , H01M4/02 , H01M10/052
Abstract: A negative electrode for a lithium secondary battery in which lithium precipitation is suppressed. The negative electrode has a form in which a high degree of alignment of a carbon-based active material contained in a sliding portion of the negative electrode active layer is realized. Accordingly, the negative electrode has an excellent effect of suppressing lithium precipitation at the end of the negative electrode active layer during charging and discharging of the secondary battery, so that a lithium secondary battery including the negative electrode has high safety and can be charged and discharged for a long time under high rate conditions. A lithium secondary battery including the negative electrode is also provided.
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Patent Agency Ranking
公开(公告)号：US20250105240A1
公开(公告)日：2025-03-27
申请号：US18727825
申请日：2023-09-13
Applicant: LG Energy Solution, Ltd.
Inventor： Jong Su Yoon , Taek Soo Lee , Jin Ho Cho , Shin Wook Jeon , Young Gon Kim
Abstract: A magnetic alignment device includes a first magnet part and a second magnet part, an alignment measuring part, and a control part. The first and second magnet parts accommodate an electrode sheet therebetween and the alignment measuring part measures an alignment of the carbon-based negative electrode active material with respect to the negative electrode current collector. The control part adjusts the separation distance of the first and second magnet parts based on a degree of the alignment of a carbon-based negative electrode active material. The alignment of the negative electrode active layer dried with the magnetically aligned carbon-based negative electrode active material is measured in real time, and the strength of the magnetic field can be controlled by individually adjusting the spacing distance of the unit magnets according to the alignment of the carbon-based negative electrode active material measured. A method of manufacturing the same is also provided.
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公开(公告)号：US20240307912A1
公开(公告)日：2024-09-19
申请号：US18273436
申请日：2022-11-01
Applicant: LG Energy Solution, Ltd.
Inventor： Paul Choi , Dong Hun Song , Jung Sik Choi , Dongwook Shin , Shin Wook Jeon , Sang Hoon Choy , Hyunwoo Choi
CPC classification number: B05C11/1026 , B05C11/1028 , H01M4/0404
Abstract: An electrode slurry control device may include a main body configured to receive electrode slurry from an outside storage, a coater configured to discharge electrode slurry, a supply tube configured to supply the electrode slurry to the coater and connected to the main body through a first connection tube having a first opening/closing member, a first circulation tube connected to the main body through a second connection tube having a second opening/closing member; and a second circulation tube connected to the main body through a third connection tube having a third opening/closing member, a diameter of an inner peripheral surface of the second connection tube is smaller than an average diameter of an inner peripheral surface of the first circulation tube, and a diameter of an inner peripheral surface of the third connection tube is larger than an average diameter of an inner peripheral surface of the second connection tube.
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公开(公告)号：US20230128999A1
公开(公告)日：2023-04-27
申请号：US17913987
申请日：2021-11-17
Applicant: LG Energy Solution, Ltd.
Inventor： Eun Hoe Jeong , Sang Hoon Choy , Shin Wook Jeon , Oh Cheol Kwon , Jin Young Son , Young Kuk Ko
Abstract: A system for drying an electrode includes a drying unit which dries an electrode which is moving on a transfer line; a thermal imaging camera which photographs a surface of the electrode in real time; a calculation unit which stores an image taken by the thermal imaging camera, and generates temperature distribution data in a width direction of the electrode from the image; and an output unit which outputs the image and the temperature distribution data in a width direction of the electrode.
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公开(公告)号：US20230120286A1
公开(公告)日：2023-04-20
申请号：US17915199
申请日：2021-12-01
Applicant: LG Energy Solution, Ltd.
Inventor： Seong Wook Hong , Dong Hun Song , Sang Hoon Choy , Shin Wook Jeon
Abstract: A method of manufacturing a shim for a die coater is disclosed herein. In some embodiments, a method of manufacturing a shim for a die coater, where the shim is applied to an electrode slurry die of the die coater and used for discharging an electrode slurry from the die coater, comprising milling a surface of a metal plate to prepare the shim. Using the method herein, it is possible to manufacture a shim for a die coater having a low thickness deviation by processing the shim for a die coater through a milling process.
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公开(公告)号：US20250070109A1
公开(公告)日：2025-02-27
申请号：US18728199
申请日：2023-09-13
Applicant: LG ENERGY SOLUTION, LTD
Inventor： Jong Su Yoon , Taek Soo Lee , Jin Ho Cho , Shin Wook Jeon , Young Gon Kim
IPC: H01M4/04 , G01B11/06 , H01F7/02 , H01M4/02 , H01M4/1393
Abstract: A magnetic alignment device includes a first magnet part and a second magnet part, a thickness measuring part, and a control part. The first and second magnet parts accommodate an electrode sheet therebetween and the thickness measuring part measures a thickness of a negative electrode slurry disposed on the electrode sheet. The control part adjusts the separation distance of the first and second magnet parts. The magnetic alignment device measures the thickness of the negative electrode slurry applied on the negative electrode current collector in real time and controls the intensity of the magnetic field by adjusting the separation distance of the magnet part according to the measured negative electrode slurry thickness, and has an advantage of uniformly high alignment degree of the crystal faces of the carbon-based negative electrode active material contained in prepared negative electrode active layer.
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