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公开(公告)号：US12237547B2
公开(公告)日：2025-02-25
申请号：US18083773
申请日：2022-12-19
Applicant: SK ON CO., LTD.
Inventor： Jeong Woo Han , Hae Ryong Jeon
IPC: H01M50/588 , H01M10/658 , H01M50/211 , H01M50/507 , H01M50/516
Abstract: A battery module includes a housing having an internal space; a cell stack accommodated in the internal space and including a plurality of battery cells and a plurality of heat blocking members stacked therein; a busbar assembly including a busbar frame opposing at least one side surface of the cell stack, and a plurality of busbars coupled to the busbar frame and electrically connected to the plurality of battery cells, wherein at least one of the plurality of heat blocking members includes an extension portion inserted into the busbar frame and preventing an electrical short circuit between the plurality of busbars.
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公开(公告)号：US20250062491A1
公开(公告)日：2025-02-20
申请号：US18935661
申请日：2024-11-04
Applicant: SK On Co., Ltd.
Inventor： Suk Chul KIM , Dae Won KWON , Yong Uk KIM , Jong Ho SEOK
IPC: H01M50/383 , H01M10/0525 , H01M50/186 , H01M50/211
Abstract: A battery sub-packing unit includes a plurality of secondary battery cells, a cell support member including a seating portion for accommodating the plurality of secondary battery cells, and a venting inducing portion connecting the seating portion to an external area, and a case member provided to surround the secondary battery cell accommodated in the seating portion and to seal around the secondary battery cell.
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公开(公告)号：US20250058909A1
公开(公告)日：2025-02-20
申请号：US18796311
申请日：2024-08-07
Applicant: SK On Co., Ltd.
Inventor： Moo Jin PARK , In Mok KIM
Abstract: The present disclosure provides an apparatus for discharging powder for a secondary battery, the apparatus comprising: a hopper having an accommodating space in which powder is accommodated and a discharge port through which the powder is discharged, a mesh plate disposed inside the hopper, and a vibration transmission unit transmitting vibrations to the mesh plate.
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公开(公告)号：US20250055096A1
公开(公告)日：2025-02-13
申请号：US18808996
申请日：2024-08-19
Applicant: SK ON CO., LTD.
Inventor： Jae Gyu BYUN , Dong Ju KIM , Sang Mo KIM , Jin Go KIM , Sun Min PARK , Taek Eon JEONG
IPC: H01M50/184 , H01M10/04 , H01M10/60 , H01M50/105 , H01M50/178
Abstract: A pouch-type secondary battery includes an electrode assembly including a first electrode plate, and a second electrode plate and a pouch film in which the electrode assembly is accommodated and including a sealing portion on three sides of the pouch film, wherein the pouch film includes a folded portion disposed at an end of the sealing portion, and formed by folding an end portion of the pouch film.
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公开(公告)号：US20250054955A1
公开(公告)日：2025-02-13
申请号：US18797511
申请日：2024-08-08
Applicant: SK ON CO., LTD.
Inventor： Jong Hyeok LEE , Hyun Ji KIM , Yoon Ji JO , Chang Mook HWANG
IPC: H01M4/36 , H01M4/02 , H01M4/525 , H01M10/052
Abstract: A cathode for a lithium secondary battery includes a cathode current collector, a first cathode active material layer formed on the cathode current collector and including a first cathode active material and a first cathode conductive material, and a second cathode active material layer formed on the first cathode active material layer and including a second cathode active material that has an average particle diameter larger than that of the first cathode active material, and a second cathode conductive material. A content of the first cathode conductive material based on a total weight of the first cathode active material layer is greater than a content of the second cathode conductive material based on a total weight of the second cathode active material layer.
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公开(公告)号：US20250054954A1
公开(公告)日：2025-02-13
申请号：US18789706
申请日：2024-07-31
Applicant: SK ON CO., LTD.
Inventor： Sung Soon PARK , Jong Hwa KIM , Yeong Bin YOO , Sang Bok KIM
IPC: H01M4/36 , H01M4/02 , H01M4/525 , H01M4/62 , H01M10/0525
Abstract: A cathode active material for a lithium secondary battery includes a coating element and lithium-nickel metal oxide particles. A coating area defined as (AC/ANi)*100 1 is 25% or more. AC is an area of a region where a content of the coating element is 1.6 wt % or more based on a total weight of the lithium-nickel metal oxide particles in a quantitative map (Q-map) image obtained through a scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDS), and ANi is an area of a region where nickel is present in the Q-map image obtained through the SEM-EDS.
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公开(公告)号：US20250051093A1
公开(公告)日：2025-02-13
申请号：US18788147
申请日：2024-07-30
Applicant: SK On Co., Ltd.
Inventor： Jae Hoon JEONG , Yeon Ho PARK , Ju Yeon KIM
IPC: B65G1/04
Abstract: Provided is a secondary battery reel storage rack to which a secondary battery reel is loaded for storage, the secondary battery reel storage rack including: a loading column perpendicular to the ground; a cantilever protruding parallel to the ground from one side surface of the loading column to support the loaded secondary battery reel; and a cover provided below the cantilever.
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公开(公告)号：US20250046959A1
公开(公告)日：2025-02-06
申请号：US18788271
申请日：2024-07-30
Applicant: SK On Co., Ltd.
Inventor： Seul Gi LEE , Yoon Sung OH , Jae Hun KIM , Min Jeong HONG
IPC: H01M50/533 , B23K26/21
Abstract: The present disclosure may provide a battery manufacturing apparatus including a laser cutting device irradiating a laser beam to a tab included in a battery cell, the laser beam cutting at least a part of the tab along a predetermined cutting line, and a bending device for bending at least a part of the tab.
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公开(公告)号：US20250038169A1
公开(公告)日：2025-01-30
申请号：US18918060
申请日：2024-10-17
Applicant: SK On Co., Ltd.
Inventor： Byoung Wook JO , Byung Chan KANG , Yong Hee KANG , Sung Jun PARK , Hyo Sung LIM
Abstract: The present invention provides a fabrication method of a multilayer electrode for a secondary battery including: (a) preparing two or more electrode slurries each containing an electrode active material, a binder, and a solvent and heating at least one electrode slurry selected from the prepared two or more electrode slurries to a temperature lower than a boiling point (Tb) of the solvent contained in the selected electrode slurry; (b) coating the two or more electrode slurries on a current collector; and (c) cooling the coated two or more electrode slurries.
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公开(公告)号：US20250033922A1
公开(公告)日：2025-01-30
申请号：US18774890
申请日：2024-07-16
Applicant: SK On Co., Ltd. , Mirae Solution Technology CO., LTD.
Inventor： Jeong Bok LEE , Sang Hwa KIM , Kyun Yeol LIM , Kyoung Tae MIN
Abstract: A wire transfer device is provided. The wire transfer device includes a frame, a bobbin connected to the frame and on which a wire is configured to be wound; a holder including a first end connected to the wire and a second end opposite to the first end and configured to be connected to foil; and a guide roller configured to guide a movement path of the wire or the holder. The guide roller includes a groove region for accommodating the wire and a protruding region extending from the groove region and configured to contact with the holder.
