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1. 发明公开

EP3739669A1 SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：EP3739669A1
公开(公告)日：2020-11-18
申请号：EP18899745.6
申请日：2018-10-08
申请人： Samsung SDI Co., Ltd.
发明人： JEONG, Hyun Ki , LEE, Ho Jae , PARK, Jung Hyun , PARK, June Hyoung , LEE, Sang Mi , LEE, Won Ik , CHA, Ye Ji , OYAGI, Nobuyuki
IPC分类号： H01M2/20 , H01M2/26 , H01M2/34 , H01M10/04
摘要： Disclosed is a secondary battery, which has a reinforced strength and can simplify the manufacturing process thereof. For example, one embodiment provides a secondary battery which comprises: an electrode assembly including a first electrode plate and a second electrode plate, wherein one of the first electrode plate and the second electrode plate includes a plurality of first tabs formed to protrude in one direction; a first current collection tab coupled to the first tabs; a case housing the electrode assembly; and a cap assembly coupled to the upper part of the case, wherein the first current collection tab is coupled to one of the cap assembly and the bottom surface of the case.

2. 发明公开

EP4345963A1 CYLINDRICAL SECONDARY BATTERY AND MANUFACTURING METHOD OF SECONDARY BATTERY 审中-实审
公开(公告)号：EP4345963A1
公开(公告)日：2024-04-03
申请号：EP23194287.1
申请日：2023-08-30
申请人： Samsung SDI Co., Ltd.
发明人： KIM, Jung Hyun , KIM, Joung Ku , PARK, Byung Kyu , PARK, Jung Hyun , SHIN, Joo Youn , LEE, Gye Won , LEE, Dong Sub , JUNG, Hyun Ki
IPC分类号： H01M10/04 , H01M10/0587 , H01M50/107 , H01M50/528 , H01M50/533 , H01M50/536 , H01M50/538
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.

3. 发明公开

EP4220795A2 CYLINDRICAL SECONDARY BATTERY 审中-实审
公开(公告)号：EP4220795A2
公开(公告)日：2023-08-02
申请号：EP23153419.9
申请日：2023-01-26
申请人： Samsung SDI Co., Ltd.
发明人： PARK, Jung Hyun , SHIN, Joo Youn , KIM, Joung Ku , KIM, Jung Hyun , LEE, Dong Sub
IPC分类号： H01M10/04 , H01M50/107 , H01M50/148 , H01M50/538 , H01M50/545 , H01M50/547
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.

4. 发明公开

EP3866241A1 SECONDARY BATTERY 审中-公开
公开(公告)号：EP3866241A1
公开(公告)日：2021-08-18
申请号：EP19871668.0
申请日：2019-09-24
申请人： Samsung SDI Co., Ltd.
发明人： PARK, Jung Hyun , JEONG, Hyun Ki , OYAGI, Nobuyuki , LEE, Won Ik , KIM, Young Chang
IPC分类号： H01M10/04 , H01M2/26
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.

5. 发明公开

EP3696874A1 SECONDARY BATTERY 审中-实审
公开(公告)号：EP3696874A1
公开(公告)日：2020-08-19
申请号：EP18865555.9
申请日：2018-07-31
申请人： Samsung SDI Co., Ltd.
发明人： JEONG, Hyun Ki , LEE, Ho Jae , PARK, Jung Hyun , PARK, June Hyoung , OYAGI, Nobuyuki , LEE, Sang Mi , LEE, Won Ik , CHA, Ye Ji
IPC分类号： H01M2/06 , H01M2/26 , H01M4/70 , H01M10/04 , H01M10/0587 , B23K101/38
摘要： An embodiment of the present invention relates to a secondary battery, wherein a technical problem to be solved is to provide a secondary battery which has low resistance and can output high power without loss of capacity, and can prevent deformation or cracking of an electrode assembly. To this end, the present invention provides a secondary battery comprising: a cylindrical can; an electrode assembly which is received in the cylindrical can and includes multiple first tabs extending in a first direction which is a longitudinal direction of the cylindrical can, and multiple second tabs extending in a second direction opposite to the first direction; a cap assembly for sealing the cylindrical can; a first current collecting structure which electrically connects the multiple first tabs to the cap assembly while being insulated from the cylindrical can; and a second current collecting structure for electrically connecting the multiple second tabs to the cylindrical can.

6. 发明公开

EP4372857A3 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：EP4372857A3
公开(公告)日：2024-07-10
申请号：EP23206855.1
申请日：2023-10-30
申请人： Samsung SDI Co., Ltd.
发明人： SHIN, Joo Youn , PARK, Jung Hyun , KIM, Jung Hyun , KIM, Joung Ku
IPC分类号： H01M10/04 , H01M50/152 , H01M50/179 , H01M10/0587 , H01M50/107 , H01M50/528 , H01M50/533 , H01M50/538 , H01M50/559 , H01M50/548
CPC分类号： H01M10/0587 , H01M10/0431 , H01M50/538 , H01M50/107 , H01M50/533 , H01M50/528 , H01M50/559 , Y02E60/10 , Y02P70/50 , H01M50/152 , H01M50/179 , H01M50/167 , H01M50/548
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.

7. 发明公开

EP4372857A2 CYLINDRICAL SECONDARY BATTERY 审中-实审
公开(公告)号：EP4372857A2
公开(公告)日：2024-05-22
申请号：EP23206855.1
申请日：2023-10-30
申请人： Samsung SDI Co., Ltd.
发明人： SHIN, Joo Youn , PARK, Jung Hyun , KIM, Jung Hyun , KIM, Joung Ku
IPC分类号： H01M10/04 , H01M10/0587 , H01M50/107 , H01M50/528 , H01M50/533 , H01M50/538 , H01M50/559
CPC分类号： H01M10/0587 , H01M10/0431 , H01M50/538 , H01M50/107 , H01M50/533 , H01M50/528 , H01M50/559
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.

8. 发明公开

EP4311014A1 CYLINDRICAL SECONDARY BATTERY 审中-实审
公开(公告)号：EP4311014A1
公开(公告)日：2024-01-24
申请号：EP22771603.2
申请日：2022-02-07
申请人： Samsung SDI Co., Ltd.
发明人： YU, Gwan Hyeon , PARK, Jung Hyun , SHIN, Joo Youn , SHIN, Ye Eun
IPC分类号： H01M50/538 , H01M10/04 , H01M50/586
摘要： An embodiment of the present invention relates to a cylindrical secondary battery which may comprise: a cylindrical can; an electrode assembly accommodated in the can and formed by stacking a first electrode plate, a separator, and a second electrode plate and winding in a cylindrical shape, wherein a first electrode uncoated portion of the first electrode plate protruding at one end in the longitudinal direction and a second electrode uncoated portion of the second electrode plate protruding at the other end thereof; a cap assembly coupled to one side of the can in a state in which the electrode assembly is accommodated in the can; a first electrode current collector plate which is located between the first electrode uncoated portion and the can and electrically connected to the first electrode uncoated portion and the cap assembly; a second electrode current collector plate which is located between the second electrode uncoated portion and the cap assembly and electrically connected to the second electrode uncoated portion and the can; a first auxiliary plate which is located between the first electrode uncoated portion and the first electrode current collector plate and electrically connected to the first electrode uncoated portion and the first electrode current collector plate; and a second auxiliary plate which is located between the second electrode uncoated portion and the second electrode current collector plate and electrically connected to the second electrode uncoated portion and the second electrode current collector plate.

9. 发明公开

EP4195341A1 SECONDARY BATTERY 审中-实审
公开(公告)号：EP4195341A1
公开(公告)日：2023-06-14
申请号：EP21856050.6
申请日：2021-06-23
申请人： Samsung SDI Co., Ltd.
发明人： LEE, Won Ik , PARK, Gun Gue , JANG, In Young , PARK, Jung Hyun , SHIN, Joo Youn , UHM, Ju Shik , JEONG, Hyun Ki , KIM, Mun Sung , SHIN, Ye Eun
IPC分类号： H01M10/04 , H01M10/42 , H01M50/538
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.

10. 发明公开

EP3920296A1 SECONDARY BATTERY 审中-公开
公开(公告)号：EP3920296A1
公开(公告)日：2021-12-08
申请号：EP19913855.3
申请日：2019-12-10
申请人： Samsung SDI Co., Ltd.
发明人： PARK, Jung Hyun , PARK, Gun Gue , PARK, June Hyoung , JEONG, Hyun Ki , PARK, Sung Soo , LEE, Won Ik
IPC分类号： H01M10/04 , H01M2/22 , H01M2/26
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.

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