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1. 发明公开

US20240162501A1 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：US20240162501A1
公开(公告)日：2024-05-16
申请号：US18478751
申请日：2023-09-29
申请人： Samsung SDI Co., Ltd.
发明人： Joo Youn SHIN , Jung Hyun PARK , Jung Hyun KIM , Joung Ku KIM
IPC分类号： H01M10/0587 , H01M50/107 , H01M50/152 , H01M50/179 , H01M50/533 , H01M50/538
CPC分类号： H01M10/0587 , H01M50/107 , H01M50/152 , H01M50/179 , H01M50/533 , H01M50/538
摘要： A cylindrical secondary battery includes: an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a center pin extending along a winding axis of the electrode assembly, the center pin including an insulating material and having a flange on at least one of an upper end and a lower end thereof; a case accommodating the electrode assembly and the center pin; a terminal extending through an upper end of the case and electrically connected to the first electrode plate of the electrode assembly; and a cap plate sealing a lower end of the case.

2. 发明申请

US20220278376A1 ELECTRODE ASSEMBLY AND SECONDARY BATTERY COMPRISING THE SAME 有权
公开(公告)号：US20220278376A1
公开(公告)日：2022-09-01
申请号：US17747369
申请日：2022-05-18
申请人： SAMSUNG SDI CO., LTD.
发明人： Jung Hyun PARK , June Hyoung PARK , Hyun Ki JEONG , Nobuyuki OYAGI
IPC分类号： H01M10/0587 , H01M10/04 , H01M10/28 , H01M50/107 , H01M50/116 , H01M50/463
摘要： An electrode assembly and a secondary battery are provided. In an exemplary embodiment, an electrode assembly includes: a first electrode plate having a first electrode tab attached thereto; a second electrode plate having at least one second electrode tab attached thereto; and a separator between the first electrode plate and the second electrode plate, the electrode assembly wound in a state in which the first electrode plate, the separator, and the second electrode plate are stacked, and the first electrode plate includes coating portions formed by coating an active material on first and second surfaces thereof, and a half-coating portion formed by coating the active material on only one of the first and second surfaces at a region corresponding to a leading edge, on the basis of a winding direction, where an active material of the second electrode plate begins.

3. 发明申请

US20210344033A1 SECONDARY BATTERY 有权
公开(公告)号：US20210344033A1
公开(公告)日：2021-11-04
申请号：US17283240
申请日：2019-09-24
申请人： Samsung SDI Co., Ltd.
发明人： Jung Hyun PARK , Hyun Ki JEONG , Nobuyuki OYAGI , Won Ik LEE , Young Chang KIM
IPC分类号： H01M10/04 , H01M50/538 , H01M50/533 , H01M4/134
摘要： An embodiment of the present invention relates to a secondary battery, and with respect to a technical problem to be resolved, provided is a secondary battery which has an electrode tab provided by forming a notch on a non-coated part of an electrode plate of an electrode assembly, and which can enable a current collecting plate to come into surface contact with the electrode tab. To this end, disclosed is a secondary battery comprising: an electrode assembly which comprises a first electrode plate coated with a first electrode active material and having a first non-coated part formed along an upper end thereof, a second electrode plate coated with a second electrode active material and having a second non-coated part formed along a lower end thereof, and a separator interposed between the first electrode plate and the second electrode plate, and which is wound in a jelly roll shape; a can for accommodating the electrode assembly; a cap assembly for sealing the can; a first current collecting plate electrically connected to the cap assembly by coming into contact with the first non-coated part; and a second current collecting plate electrically connected to the can by coming into contact with the second non-coated part, wherein the first non-coated part and/or the second non-coated part has a structure in which a plurality of isosceles trapezoidal electrode tabs are arranged to be adjacent to one another with notches formed at a specific angle (α) and at predetermined intervals from a start point thereof that is closest to a winding axis, and thus the first non-coated part and/or the second non-coated part are bent toward the winding axis.

4. 发明申请

US20220131216A1 SECONDARY BATTERY 有权
公开(公告)号：US20220131216A1
公开(公告)日：2022-04-28
申请号：US17424137
申请日：2019-12-10
申请人： SAMSUNG SDI CO., LTD.
发明人： Jung Hyun PARK , Gun Gue PARK , June Hyoung PARK , Hyun Ki JEONG , Sung Soo PARK , Won Ik LEE
IPC分类号： H01M50/107 , H01M10/04 , H01M50/148 , H01M50/528
摘要： The present invention relates to a secondary battery in which an electrode assembly and a current collection plate may be easily welded and safety may be improved. As an embodiment, disclosed is a secondary battery comprising: an electrode assembly which is formed by winding a first electrode plate having a first electrode uncoated part, a separator, and a second electrode plate having a second electrode uncoated part, the first electrode uncoated part protruding upwards, and the second electrode uncoated part protruding downwards; and a first current collection plate which is electrically connected to the first electrode uncoated part and has a concave-convex part protruding downwards, wherein the width of the concave-convex part becomes wider from the center of the first current collection plate toward the outer periphery thereof.

5. 发明公开

US20240072294A1 CYLINDRICAL SECONDARY BATTERY AND MANUFACTURING METHOD OF SECONDARY BATTERY 审中-公开
公开(公告)号：US20240072294A1
公开(公告)日：2024-02-29
申请号：US18450901
申请日：2023-08-16
申请人： Samsung SDI Co., Ltd.
发明人： Jung Hyun KIM , Joung Ku KIM , Byung Kyu PARK , Jung Hyun PARK , Joo Youn SHIN , Gye Won LEE , Dong Sub LEE , Hyun Ki JUNG
IPC分类号： H01M10/04 , B23K31/02 , H01M50/107 , H01M50/536
CPC分类号： H01M10/0431 , B23K31/02 , H01M10/0422 , H01M10/049 , H01M50/107 , H01M50/536
摘要： A cylindrical secondary battery and a manufacturing method of a secondary battery are provided. A manufacturing method of a cylindrical secondary battery includes: winding an electrode assembly to expose a first electrode uncoated portion and a second electrode uncoated portion to opposite ends in a longitudinal direction; bending at least some portions of the first electrode uncoated portion and the second electrode uncoated portion of the electrode assembly in a direction by pressing the first electrode uncoated portion and the second electrode uncoated portion; welding electrode collector plates to ends of the bent first and second electrode uncoated portions; and inserting and sealing the electrode assembly into a cylindrical case.

6. 发明公开

US20230238615A1 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：US20230238615A1
公开(公告)日：2023-07-27
申请号：US18145431
申请日：2022-12-22
申请人： Samsung SDI Co., Ltd.
发明人： Jung Hyun PARK , Joo Youn SHIN , Joung Ku KIM , Jung Hyun KIM , Dong Sub LEE
IPC分类号： H01M50/107 , H01M50/152 , H01M50/543 , H01M50/536 , H01M50/533 , H01M10/0587 , H01M10/0585
CPC分类号： H01M50/107 , H01M50/152 , H01M50/543 , H01M50/536 , H01M50/533 , H01M10/0587 , H01M10/0585
摘要： A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate having a positive electrode multi-tab, a separator, and a negative electrode plate having a negative electrode multi-tab, the positive electrode plate, the separator, and the negative electrode plate being laminated and wound; a cylindrical can accommodating the electrode assembly; a cap plate coupled at an upper end of the cylindrical can and being electrically connected to the negative electrode multi-tab; and a positive electrode terminal protruding upwardly through the cap plate and being electrically connected to the positive electrode multi-tab.

7. 发明公开

US20230187707A1 SECONDARY BATTERY 审中-公开
公开(公告)号：US20230187707A1
公开(公告)日：2023-06-15
申请号：US17997207
申请日：2021-06-23
申请人： Samsung SDI Co., Ltd.
发明人： Won Ik LEE , Gun Gue PARK , In Young JANG , Jung Hyun PARK , Joo Youn SHIN , Ju Shik UHM , Hyun Ki JEONG , Mun Sung KIM , Ye Eun SHIN
IPC分类号： H01M10/0587 , H01M10/0585 , H01M50/627 , H01M50/107
CPC分类号： H01M10/0587 , H01M10/0585 , H01M50/627 , H01M50/107
摘要： The present invention relates to a secondary battery supporting the center part of an electrode assembly to enhance stability and reliability. For example, disclosed is a secondary battery comprising: an electrode assembly formed by winding a first electrode plate, a separator and a second electrode plate; a case for accommodating the electrode assembly; a current collection plate electrically connected to the first electrode plate and coupled to the upper part of the electrode assembly; and a core insulation member coupled to a winding center of the electrode assembly at the upper part of the current collection plate, wherein the core insulation member includes an insertion part having an inner hole, and a flange part extending in the horizontal direction from the upper end of the insertion part.

8. 发明公开

US20240274924A1 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：US20240274924A1
公开(公告)日：2024-08-15
申请号：US18648305
申请日：2024-04-26
申请人： Samsung SDI Co., Ltd.
发明人： Jung Hyun PARK , Joo Youn SHIN , Joung Ku KIM , Jung Hyun KIM , Dong Sub LEE
IPC分类号： H01M50/107 , H01M10/0585 , H01M10/0587 , H01M50/152 , H01M50/533 , H01M50/536 , H01M50/543
CPC分类号： H01M50/107 , H01M10/0585 , H01M10/0587 , H01M50/152 , H01M50/533 , H01M50/536 , H01M50/543
摘要： A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate having a positive electrode multi-tab, a separator, and a negative electrode plate having a negative electrode multi-tab, the positive electrode plate, the separator, and the negative electrode plate being laminated and wound; a cylindrical can accommodating the electrode assembly; a cap plate coupled at an upper end of the cylindrical can and being electrically connected to the negative electrode multi-tab; and a positive electrode terminal protruding upwardly through the cap plate and being electrically connected to the positive electrode multi-tab.

9. 发明公开

US20240234784A1 PROCESSING APPARATUS FOR ELECTRODE ASSEMBLY OF SECONDARY BATTERY 审中-公开
公开(公告)号：US20240234784A1
公开(公告)日：2024-07-11
申请号：US18405847
申请日：2024-01-05
申请人： Samsung SDI Co., Ltd. , FITO Co., Ltd.
发明人： Jung Hyun KIM , Joo Youn SHIN , Jung Hyun PARK , Joung Ku KIM , Dong Sub LEE , Seog Jin CHO
IPC分类号： H01M10/04
CPC分类号： H01M10/0409
摘要： A processing apparatus for a base material tab protruding from a cylindrical electrode assembly includes: a vertical plate arranged in a second direction perpendicular to a first direction, the first direction being a longitudinal direction of the electrode assembly; a rotatable plate that is a planar plate arranged parallel to the vertical plate and coupled to be rotatable relative to the vertical plate; and a plurality of blades coupled between the vertical plate and the rotatable plate. The blades together form a variable diameter central area defined by ends of the blades according to the relative rotation of the rotatable plate to process the base material tab of the electrode assembly.

10. 发明公开

US20240222707A1 SECONDARY BATTERY 审中-公开
公开(公告)号：US20240222707A1
公开(公告)日：2024-07-04
申请号：US18487804
申请日：2023-10-16
申请人： Samsung SDI Co., Ltd.
发明人： Jung Hyun PARK , Jung Hyun KIM , Joo Youn SHIN , Joung Ku KIM
IPC分类号： H01M10/0587 , H01M4/13 , H01M50/107 , H01M50/152 , H01M50/188 , H01M50/533 , H01M50/536 , H01M50/545 , H01M50/559 , H01M50/583
CPC分类号： H01M10/0587 , H01M4/13 , H01M50/107 , H01M50/152 , H01M50/188 , H01M50/533 , H01M50/536 , H01M50/545 , H01M50/559 , H01M50/583 , H01M2200/103
摘要： A secondary battery includes an electrode assembly which is wound and includes a first electrode plate including a first uncoated portion, a second electrode plate including a second uncoated portion, and a separator between the first electrode plate and the second electrode plate, a case having a cylindrical shape and accommodating the electrode assembly, and a cap assembly sealing the case, and a cutting depth before winding of each of the first uncoated portion and the second uncoated portion is in a range of 100% to 150% as compared with a forming position. When a non-coated portion for forming a substrate tab is cut, a cutting width is changed to increase toward a winding end, thereby minimizing or reducing an overlapping amount between substrates during winding, and damage to the substrate during pre-folding or compaction of the substrate may be prevented or substantially prevented.

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