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1. 发明公开

US20240120585A1 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：US20240120585A1
公开(公告)日：2024-04-11
申请号：US18453058
申请日：2023-08-21
申请人： Samsung SDI Co., Ltd.
发明人： Sang Hyo LEE
IPC分类号： H01M50/179 , H01M50/107 , H01M50/152 , H01M50/184 , H01M50/186 , H01M50/531 , H01M50/559
CPC分类号： H01M50/179 , H01M50/107 , H01M50/152 , H01M50/184 , H01M50/186 , H01M50/531 , H01M50/559
摘要： A cylindrical secondary battery includes: a cylindrical can; a cap plate coupled to the can, the cap plate having a convex area, a concave area, and an opening; an electrode assembly accommodated in the can and including a first electrode plate and a second electrode plate; and a first terminal exposed to the outside of the cap plate through the opening and having a convex area and a concave area. The convex areas and the concave areas of the cap plate and the first terminal are alternately arranged.

2. 发明申请

US20220037747A1 SECONDARY BATTERY 有权
公开(公告)号：US20220037747A1
公开(公告)日：2022-02-03
申请号：US17278992
申请日：2019-09-23
申请人： Samsung SDI Co., Ltd.
发明人： Sang Hyo LEE
IPC分类号： H01M50/538 , H01M10/0587 , H01M50/536 , H01M10/0525
摘要： A secondary battery capable of preventing a deformation is disclosed. In one embodiment, disclosed is a secondary battery comprising: an electrode assembly in which a first electrode plate having a first non-coated part protruding in a first direction, a second electrode plate having a second non-coated part protruding in a second direction that is opposite to the first direction, and a separator interposed between the first electrode plate and the second electrode plate, are wound so that the first non-coated part and the second non-coated part are exposed in opposite directions; a first current collecting plate electrically coupled to the first non-coated part; a second current collecting plate electrically coupled to the second non-coated part, and having an end part protruding farther toward the outside of the first current collecting plate by penetrating the winding center of the electrode assembly; and an insulation member positioned between the end part of the second current collecting plate and the first current collecting plate, wherein the end part of the second current collecting plate is coupled with the insulation member by pressing the insulation member from the outside thereof.

3. 发明公开

US20240120626A1 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：US20240120626A1
公开(公告)日：2024-04-11
申请号：US18370807
申请日：2023-09-20
申请人： Samsung SDI Co., Ltd.
发明人： Sang Hyo LEE
IPC分类号： H01M50/559 , H01M50/107 , H01M50/152 , H01M50/186 , H01M50/528 , H01M50/533
CPC分类号： H01M50/559 , H01M50/107 , H01M50/152 , H01M50/186 , H01M50/528 , H01M50/533
摘要： A cylindrical secondary battery including: a cylindrical can having an open end in a longitudinal direction thereof; a cap plate coupled to the can and having an opening therein; an electrode assembly accommodated in the can and including a first electrode plate and a second electrode plate; and a first terminal. The first terminal includes: a base block electrically connected to the first electrode plate; a head facing the base block and exposed to the outside through the opening; and a fusible link connecting the base block and the head to each other and having a diameter less than that of the head.

4. 发明公开

US20240145877A1 SECONDARY BATTERY 审中-公开
公开(公告)号：US20240145877A1
公开(公告)日：2024-05-02
申请号：US18478862
申请日：2023-09-29
申请人： SAMSUNG SDI CO., LTD.
发明人： Sang Hyo LEE
IPC分类号： H01M50/533 , H01M50/107 , H01M50/152 , H01M50/169 , H01M50/474 , H01M50/559 , H01M50/583 , H01M50/586
CPC分类号： H01M50/533 , H01M50/107 , H01M50/152 , H01M50/169 , H01M50/474 , H01M50/559 , H01M50/583 , H01M50/586 , H01M2200/103
摘要： The present disclosure relates to a battery capable of improving safety by reducing a current path between an electrode plate and a can. Disclosed in an example is a battery including a can having an upper end and a lower end, an upper plate coupled to the upper end of the can, a lower plate coupled to the lower end of the can, an electrode assembly inside the can, and including a first electrode uncoated portion extending upwardly, and a second electrode uncoated portion extending downwardly, a first current collector plate electrically connected to the first electrode uncoated portion, and a second current collector plate electrically connected to the second electrode uncoated portion, and coupled between the lower end of the can and the lower plate.

5. 发明公开

US20240145850A1 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：US20240145850A1
公开(公告)日：2024-05-02
申请号：US18454651
申请日：2023-08-23
申请人： Samsung SDI Co., Ltd.
发明人： Sang Hyo LEE
IPC分类号： H01M50/342 , H01M50/107 , H01M50/152 , H01M50/179
CPC分类号： H01M50/3425 , H01M50/107 , H01M50/152 , H01M50/179
摘要： A cylindrical secondary battery which can be sequentially opened at different rupture pressures, by including two vents ruptured by the different rupture pressures, thereby improving safety. The cylindrical secondary battery includes an electrode assembly having a first electrode plate, a separator, and a second electrode plate; a case accommodating the electrode assembly and including an opening at an upper end and electrically connected to the second electrode plate; a terminal penetrating a lower surface of the case and electrically connected to the first electrode plate; and a cap plate sealing an upper end of the case. The cap plate may include: a first vent portion at the center of a central region and has a smaller thickness than other regions; and a second vent portion at an edge region outside the central region and has a smaller thickness than other regions and a larger thickness than the first vent portion.

6. 发明公开

US20240021951A1 CYLINDRICAL SECONDARY BATTERY 审中-公开
公开(公告)号：US20240021951A1
公开(公告)日：2024-01-18
申请号：US18249033
申请日：2021-09-28
申请人： Samsung SDI Co., Ltd.
发明人： Dae Kyu KIM , Bo Ram LEE , Byung Jo KANG , Hyun Woo LEE , Seung Hyun CHUNG , Shin Jung KIM , Sang Hyo LEE
IPC分类号： H01M50/342 , H01M50/107 , H01M50/152
CPC分类号： H01M50/3425 , H01M50/107 , H01M50/152 , H01M50/179
摘要： An embodiment of the present invention relates to a cylindrical secondary battery comprising: a cylindrical can having one opened end to form an opening; an electrode assembly accommodated in the cylindrical can; and a cap assembly including a vent plate which is disposed on the outermost side in the direction away from the opening and which has at least one notch, a cap down which is disposed to be spaced apart from the vent plate in the direction of the opening and which is electrically connected to the electrode assembly, a support plate which is disposed between the vent plate and the cap down so as to be coupled to the vent plate, and an insulating member which is inserted between the support plate and the cap down to insulate the support plate and the cap down from each other, wherein, when the gas inside the can is discharged toward the opening, the vent plate is ruptured to be separated from the cap assembly.

7. 发明公开

US20230378595A1 SECONDARY BATTERY 审中-公开
公开(公告)号：US20230378595A1
公开(公告)日：2023-11-23
申请号：US18247734
申请日：2021-09-16
申请人： Samsung SDI Co., Ltd.
发明人： Dae Kyu KIM , Sang Hyo LEE
IPC分类号： H01M50/342 , H01M50/107 , H01M50/152 , H01M50/559 , H01M50/186
CPC分类号： H01M50/3425 , H01M50/107 , H01M50/152 , H01M50/559 , H01M50/186 , H01M2200/20
摘要： The present invention relates to a secondary battery which can easily vent internal gas, thereby enhancing safety. Disclosed as an example is a secondary battery comprising: an electrode assembly; a case in which the electrode assembly is accommodated; and a cap assembly which is coupled to the top of the case and comprises a cap-up having opening, a safety vent provided under the cap-up and having a notch to be ruptured at a predetermined pressure or higher, and a cap-down provided under the safety vent and electrically connected to the electrode assembly, wherein the notch is exposed through the opening.

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