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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：US20230065592A1
公开(公告)日：2023-03-02
申请号：US17799096
申请日：2021-07-14
发明人： Min Gyu KIM , Byung Sup KIM , Joo Hwan SUNG , Yong Gon LEE , Je Jun LEE , Kwang Su HWANGBO , Geon Woo MIN , Min Su CHO , Sang Hak CHAE
IPC分类号： H01M10/04 , H01M50/46 , H01M50/474
摘要： A button-type secondary battery includes a lower can having a first sidewall in a vertical direction along a circumference of a first flat portion; an upper can having a second sidewall in a vertical direction along a circumference of a second flat portion, wherein the upper can is coupled to the lower can so that the second flat portion faces the first flat portion; an electrode assembly in an inner space between the lower can and the upper can; and a gasket between the second sidewall and the first sidewall to prevent the upper and lower cans from contacting. The second sidewall comprises a distant end that is bent to surround an edge configured to connect the first flat portion to the first sidewall and is below the first flat portion. The gasket extends between the distal end and the first flat portion.
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公开(公告)号：US20240021928A1
公开(公告)日：2024-01-18
申请号：US18025819
申请日：2021-09-16
发明人： Min Gyu KIM , Joo Hwan SUNG , Yong Gon LEE , Je Jun LEE , Jae Won LIM , Geon Woo MIN , Min Su CHO , Sang Hak CHAE
IPC分类号： H01M50/109
CPC分类号： H01M50/109
摘要： A button-type secondary battery includes a lower can; an upper can is coupled to the lower can; an electrode assembly is on the lower can in an accommodation space defined between the lower can and the upper can. The lower can includes a first planar part, on which the electrode assembly is seated, and a first sidewall disposed vertically along a circumference of the first planar part such that a concave portion is defined in the first sidewall. The upper can includes a second planar part, which has an area that covers an opened top surface of the lower can, and a second sidewall disposed vertically along a circumference of the second planar part such that a convex portion is on an inner surface of the second sidewall. When the sidewall is coupled to be placed outside the first sidewall, the convex portion is fitted into the concave portion.
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公开(公告)号：US20230343988A1
公开(公告)日：2023-10-26
申请号：US17908488
申请日：2021-08-13
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： H01M10/04 , H01M50/538 , H01M50/578 , H01M50/342 , H01M50/109 , H01M50/153 , H01M50/583
CPC分类号： H01M10/0427 , H01M10/0431 , H01M50/538 , H01M50/578 , H01M50/3425 , H01M50/109 , H01M50/153 , H01M50/583
摘要： A button-type secondary battery includes an electrode assembly; a lower can into which the electrode assembly is disposed; and an upper can configured to cover an opening of an upper end of the lower can. A beading part recessed inward is disposed at an upper portion of the lower can. The upper end of the lower can disposed above the beading part has a bent shape and configured to surround an edge end of the upper can so that the upper can and the lower can are coupled to each other.
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公开(公告)号：US20230291039A1
公开(公告)日：2023-09-14
申请号：US18017845
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 , H01M50/153 , H01M50/528 , H01M50/533 , H01M50/30
CPC分类号： H01M50/109 , H01M50/153 , H01M50/30 , H01M50/528 , H01M50/533
摘要： A button-type secondary battery includes an electrode assembly; a lower can into which the electrode assembly is disposed; and an upper can configured to cover an opening of an upper end of the lower can. A beading part recessed inward is provided in an upper portion of the lower can. An end of the upper can has a bent shape so the upper can and the lower can are coupled to each other while an end point of the end of the upper can is inserted into the beading part.
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公开(公告)号：US20230223625A1
公开(公告)日：2023-07-13
申请号：US18021307
申请日：2021-10-01
发明人： Geon Woo MIN , Jae Won LIM , Kyung Wook CHO , Yong Gon LEE , Je Jun LEE , Kwang Su HWANGBO , Min Su CHO , Min Gyu KIM , Sang Hak CHAE
IPC分类号： H01M50/169 , H01M50/109 , H01M50/538 , H01M50/153 , H01M50/181
CPC分类号： H01M50/169 , H01M50/109 , H01M50/538 , H01M50/153 , H01M50/181
摘要： A button-type secondary battery includes an electrode assembly in which electrodes and a separator are layered and wound, electrode tabs having different polarities protrude from top and bottom surfaces of the electrode assembly, respectively; a can including a bottom part with the electrode assembly disposed thereon and connected to one electrode tab, and a sidewall vertically extending along a circumference of the bottom part around the electrode assembly; and a top cap assembly with a terminal part connected to the other electrode tab and a plate coupled to be insulated from the terminal part and having an edge coupled to an upper end of the sidewall such that the top cap assembly is coupled to the can to close the can. An end of an edge of the plate is welded to be coupled after being seated on a point that meets the upper end of the sidewall.
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公开(公告)号：US20240055645A1
公开(公告)日：2024-02-15
申请号：US18267047
申请日：2022-03-03
发明人： Kyeong Hoon PARK , Jimin JUNG , Je Jun LEE , Hak Kyun KIM
IPC分类号： H01M10/04 , B21D51/32 , H01M50/107 , H01M50/167
CPC分类号： H01M10/0409 , B21D51/32 , H01M50/107 , H01M10/0431 , H01M10/049 , H01M50/167
摘要： A multi-roller system includes at least two pairs of rollers, in which the at least two pairs of rollers rotate about independent rotation axes, respectively. Changes in heights of the at least two pairs of rollers are controlled. Cross-sections of the at least two pairs of more of rollers have different shapes. The at least two pairs of rollers approach and press the battery can at intervals between the at least two pairs of rollers.
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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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