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公开(公告)号：US20230282911A1
公开(公告)日：2023-09-07
申请号：US18019064
申请日：2021-09-16
发明人： Min Gyu KIM , Yong Gon LEE , Je Jun LEE , Jae Won LIM , Geon Woo MIN , Min Su CHO , Joo Hwan SUNG , Sang Hak CHAE
IPC分类号： H01M50/109 , H01M50/54 , H01M50/153 , H01M50/545 , H01M50/449
CPC分类号： H01M50/109 , H01M50/54 , H01M50/153 , H01M50/545 , H01M50/449
摘要： A button-type secondary battery includes an electrode assembly; a lower can in which the electrode assembly is disposed and on which a first screw thread is defined on an outer circumferential surface thereof; an upper can which is configured to cover an opening of an upper end of the lower can and on which a second screw thread corresponding to the first screw thread is defined on an inner circumferential surface thereof; and an insulator interposed between the upper can and the lower can to prevent the upper can and the lower can from being electrically short-circuited with each other. The electrode assembly is formed by horizontally stacking a plurality of first electrodes, a separator, and a second electrode. A first electrode tab extending to be connected to each of the first electrodes of the electrode assembly is in contact with the upper can.
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公开(公告)号：US20230268593A1
公开(公告)日：2023-08-24
申请号：US18018029
申请日：2021-09-16
发明人： Min Gyu KIM , Yong Gon LEE , Je Jun LEE , Jae Won LIM , Geon Woo MIN , Min Su CHO , Joo Hwan SUNG , Sang Hak CHAE
IPC分类号： H01M50/166 , H01M50/109 , H01M50/193 , H01M50/545 , H01M50/533 , H01M50/184 , H01M50/186
CPC分类号： H01M50/166 , H01M50/109 , H01M50/193 , H01M50/545 , H01M50/533 , H01M50/184 , H01M50/186
摘要： A button-type secondary battery includes an electrode assembly; a lower can in which the electrode assembly is disposed and on which a first screw thread is defined on an outer circumferential surface thereof; an upper can which is configured to cover an opening of an upper end of the lower can and on which a second screw thread corresponding to the first screw thread is defined on an inner circumferential surface thereof; and an insulator interposed between the upper can and the lower can to prevent the upper can and the lower can from being electrically short-circuited with each other, wherein an electrode tab extending from an electrode of the electrode assembly is in contact with the upper can.
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公开(公告)号：US20240042557A1
公开(公告)日：2024-02-08
申请号：US18267039
申请日：2022-03-08
发明人： Jae Won LIM , Je Jun LEE , Hak Kyun KIM , Hong Jae MUN
IPC分类号： B23K31/12 , G01N27/20 , H01M50/566 , H01M50/562 , H01M50/534
CPC分类号： B23K31/125 , G01N27/20 , H01M50/566 , H01M50/562 , H01M50/534 , B23K2101/36
摘要： Discussed is a welding quality inspection apparatus that can include a measurement unit including a first resistance measurement member to measure a first resistance value by directly contacting a first measurement point and a second resistance measurement member to measure a second resistance value by directly contacting a second measurement point; and a control unit to judge that a welding defect occurs and sorts a defective item when the first resistance value or the second resistance value obtained from the measurement unit exceeds a threshold resistance value. The first measurement point may be positioned on a first electrode terminal exposed to an outside of the secondary battery, and the second measurement point may be positioned on the welding portion of the first electrode current collector provided inside the secondary battery.
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公开(公告)号：US20230079224A1
公开(公告)日：2023-03-16
申请号：US17798732
申请日：2021-04-05
发明人： Sung Min CHU , Jae Won LIM
IPC分类号： H01M50/54 , H01M50/46 , H01M50/474 , H01M10/04 , H01M50/107
摘要： A secondary battery includes an electrode assembly having a negative electrode, a positive electrode tab protruding to a first side, a negative electrode tab protruding to a second side, and a through-hole; an upper can having a flat planar portion and a circumferential portion protruding in a vertical direction along an edge of the flat planar portion; a lower can having a flat planar portion and a circumferential portion protruding in the vertical direction along an edge of the flat planar portion; and a center pin configured to apply elastic force in the vertical direction when being inserted into the through-hole. The center pin applies the elastic force to allow the negative electrode tab to be in direct contact with the lower can and allow the positive electrode tab to be in direct contact with the upper can.
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公开(公告)号：US20230111952A1
公开(公告)日：2023-04-13
申请号：US17792123
申请日：2021-09-16
发明人： Jae Won LIM , Yong Gon LEE , Je Jun LEE , Geon Woo MIN , Min Su CHO , Min Gyu KIM , Hak Kyun KIM
IPC分类号： H01M50/593 , H01M50/109 , H01M50/181 , H01M50/533 , H01M50/528 , H01M50/186 , H01M50/147 , H01M50/586
摘要： A button-type secondary battery includes an electrode assembly having a first electrode with a first electrode tab and a second electrode with a second electrode tab; a can accommodating the electrode assembly and to which the first electrode tab is connected; a top cap coupled to an opening of the can and to which the second electrode tab is connected; and a first insulation member insulating the first electrode tab. The first electrode tab includes a first coupling surface coupled to the first electrode and a second coupling surface extending from the first coupling surface and coupled to the can. The first insulation member includes a first insulator attached to an outer circumferential surface of the electrode assembly to cover the first coupling surface, and a second insulator horizontally extending from an upper end of the first insulator toward a top surface of the electrode assembly.
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公开(公告)号：US20230062173A1
公开(公告)日：2023-03-02
申请号：US17796621
申请日：2021-09-08
发明人： Min Su CHO , Joo Hwan SUNG , Yong Gon LEE , Je Jun LEE , Jae Won LIM , Geon Woo MIN , Min Gyu KIM , Sang Hak CHAE
IPC分类号： H01M10/04 , H01M50/109 , H01M50/186
摘要： A button-type secondary battery according to the present disclosure includes: an electrode assembly; a lower can configured to accommodate the electrode assembly; an upper can coupled to an opening of the lower can; a gasket configured to insulate a coupling portion between the lower can and the upper can; and a center part provided at a core portion of the electrode assembly, wherein the center part includes: a center pin inserted into the core portion of the electrode assembly; and an upper plate provided with an upper cover surface provided on an upper end of the center pin to protect an upper portion of the electrode assembly, wherein an edge of the upper cover surface is provided to be supported on an inner wall of the lower can.
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公开(公告)号：US20230033605A1
公开(公告)日：2023-02-02
申请号：US17791783
申请日：2021-09-16
发明人： Jae Won LIM , Yong Gon LEE , Je Jun LEE , Geon Woo MIN , Min Su CHO , Min Gyu KIM , Hak Kyun KIM
IPC分类号： H01M50/153 , H01M50/109 , H01M50/184 , H01M50/538
摘要： A button-type secondary battery includes an electrode assembly; a lower can having an accommodation space in which the electrode assembly is accommodated; an upper can coupled to the lower can to cover the accommodation space; a gasket sealing a gap between the lower can and the upper can and to electrically insulate the lower can from the upper can while being inserted into a coupled portion of the lower can and the upper can; and a first electrode tab including a first coupling part coupled to a first electrode of the electrode assembly and a second coupling part coupled between the gasket, which is disposed at the coupled portion of the lower can and the upper can, and the upper can. The second coupling part is coupled between the gasket and the upper can by a pressure generated when the lower and upper cans are coupled to each other.
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公开(公告)号：US20240072387A1
公开(公告)日：2024-02-29
申请号：US18272025
申请日：2022-03-04
发明人： Kyeong Hoon PARK , Jimin JUNG , Jae Won LIM , Je Jun LEE , Hak Kyun KIM
IPC分类号： H01M50/533 , H01M50/107 , H01M50/152 , H01M50/167 , H01M50/213 , H01M50/538
CPC分类号： H01M50/533 , H01M50/107 , H01M50/152 , H01M50/167 , H01M50/213 , H01M50/538 , H01M2220/20
摘要： A cylindrical secondary battery, a battery pack, and a vehicle are provided. The cylindrical secondary battery includes an electrode assembly having a first electrode tab at a first end of the electrode assembly a battery can configured to accommodate the electrode assembly through an opening portion formed at one side of the battery can, a current collecting plate including three or more tab coupling portions electrically connected to the first electrode tab, and a can coupling portion extending from ends of the tab coupling portions toward the opening portion of the battery can and having a continuous outer peripheral surface electrically connected to an inner surface of the battery can, and a top cap configured to cover the opening portion of the battery can.
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公开(公告)号：US20230155217A1
公开(公告)日：2023-05-18
申请号：US17912844
申请日：2021-09-13
发明人： Ji Min JUNG , Je Jun LEE , Jin Soo LEE , Bu Won SON , Jae Won LIM , Jin Yeong LEE
IPC分类号： H01M50/109 , H01M10/04 , H01M4/36 , B23K26/24
CPC分类号： H01M50/109 , H01M10/0431 , H01M4/366 , B23K26/24 , B23K2101/38
摘要： A button-type secondary battery includes an electrode assembly in which electrodes and separators are alternately layered; a can case having an internal accommodation space in which the electrode assembly is accommodated; and an electrode tab having one side connected to each of the electrodes of the electrode assembly and the other side welded to the can case. A welding pattern appearing at a welding part, at which the electrode tab is welded to the can case, includes a circular shape and an additional shape in addition to the circular shape.
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公开(公告)号：US20230138783A1
公开(公告)日：2023-05-04
申请号：US17793535
申请日：2021-09-16
发明人： Jae Won LIM , Yong Gon LEE , Je Jun LEE , Geon Woo MIN , Min Su CHO , Min Gyu KIM , Hak Kyun KIM
IPC分类号： H01M50/533 , H01M50/109 , H01M50/536 , H01M50/186 , H01M50/534
摘要： A button-type secondary battery includes an electrode assembly; a lower can configured to accommodate the electrode assembly; an upper can coupled to an opening of the lower can; a gasket configured to electrically insulate the lower can and the upper can from each other; a first tab part configured to connect a first electrode of the electrode assembly to the lower can; and a second tab part configured to connect a second electrode of the electrode assembly to the upper can. The second tab part includes a second electrode tab and a second lead tab. The second electrode tab is connected to the second electrode, and the second lead tab connects the second electrode tab to the upper can.
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