公开(公告)号：US20240106044A1

公开(公告)日：2024-03-28

申请号：US18266985

申请日：2022-09-27

申请人： LG Energy Solution, Ltd.

发明人： Ki Beom Park

IPC分类号： H01M50/186 ,  H01M50/105 ,  H01M50/46

CPC分类号： H01M50/186 ,  H01M50/105 ,  H01M50/461

摘要： A secondary battery according to the present invention includes an electrode assembly, in which an electrode and a separator are alternately stacked, and a pouch in which the electrode assembly is accommodated and of which a portion includes a sealing part that is a bonded portion. The sealing part may include a first sealing area, which is spaced a predetermined distance from the electrode assembly and disposed at an edge of the pouch, and a second sealing area that is an area corresponding to the electrode assembly. The present invention also includes a device for sealing the secondary battery and a method for forming same.

公开(公告)号：US11942662B2

公开(公告)日：2024-03-26

申请号：US17841148

申请日：2022-06-15

申请人： SANYO Electric Co., Ltd.

发明人： Ryoichi Wakimoto ,  Atsushi Tsuji

IPC分类号： H01M50/54 ,  H01M10/058 ,  H01M50/147 ,  H01M50/186 ,  H01M50/531 ,  H01M50/574 ,  H01M50/578 ,  H01M50/627 ,  H01M50/636

CPC分类号： H01M50/54 ,  H01M10/058 ,  H01M50/147 ,  H01M50/186 ,  H01M50/531 ,  H01M50/574 ,  H01M50/578 ,  H01M50/627 ,  H01M50/636

摘要： The secondary battery includes an electrode body that includes a positive electrode plate and a negative electrode plate, an outer body that has an opening and houses the electrode body, a sealing plate that seals the opening of the outer body, a positive electrode tab that is provided in the positive electrode plate, a positive electrode external terminal that is electrically connected to the positive electrode plate and attached to the sealing plate, and a positive electrode current collector and a second positive electrode current collector that electrically connect the positive electrode tab and the positive electrode external terminal. The first positive electrode current collector has a current collector protrusion. The second positive electrode current collector has a current collector opening. The current collector protrusion is positioned in the current collector opening. The current collector protrusion and the edge of the current collector opening are weld connected to each other.

公开(公告)号：US20240097252A1

公开(公告)日：2024-03-21

申请号：US18523850

申请日：2023-11-29

申请人： Zhuhai CosMX Battery Co., Ltd.

发明人： Zhida WEI ,  Ning PENG ,  Yanming XU

IPC分类号： H01M50/186 ,  H01M50/109 ,  H01M50/153 ,  H01M50/184 ,  H01M50/198 ,  H01M50/545 ,  H01M50/55 ,  H01M50/559 ,  H01M50/566 ,  H01M50/588 ,  H01M50/59

CPC分类号： H01M50/186 ,  H01M50/109 ,  H01M50/153 ,  H01M50/184 ,  H01M50/198 ,  H01M50/545 ,  H01M50/55 ,  H01M50/559 ,  H01M50/566 ,  H01M50/588 ,  H01M50/59

摘要： The present application provides a battery and an electronic device. The battery includes an electrode assembly, a lower casing, a first conductive part, and a second conductive part. An opening is provided at a top of the lower casing; the second conductive part covers the opening of the lower casing; the second conductive part and the lower casing define an accommodating cavity; the electrode assembly is located in the accommodating cavity; the first conductive part is connected to a side of the second conductive part facing the accommodating cavity; a sealing layer is provided between the first conductive part and the second conductive part to insulate the two conductive parts; a through hole is formed on the second conductive part; and at least part of a structure of the first conductive part is exposed out of the accommodating cavity via the through hole.

公开(公告)号：US20240079693A1

公开(公告)日：2024-03-07

申请号：US18501040

申请日：2023-11-03

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Wenlin Zhou ,  Quankun Li ,  Daowei Yang ,  Peng Wang

IPC分类号： H01M50/15 ,  H01M50/103 ,  H01M50/186 ,  H01M50/209 ,  H01M50/342

CPC分类号： H01M50/15 ,  H01M50/103 ,  H01M50/186 ,  H01M50/209 ,  H01M50/3425 ,  H01M2220/20

摘要： Provided are an end cover assembly, a battery cell, a battery, and an electrical apparatus. The end cover assembly is for a battery cell and comprises: an end cover provided with a pressure relief through hole; a pressure relief mechanism connected to the end cover and covering the pressure relief through hole, and configured to be actuated to release the pressure inside the battery cell when the pressure reaches a threshold; and a reinforcing mechanism, located on a side of the end cover facing away from an electrode assembly of the battery cell, and covering at least a part of the pressure relief through hole. The reinforcing mechanism is at least connected to a portion of the end cover at two sides of the pressure relief through hole along a first direction to enhance the strength of the end cover at the pressure relief through hole.

公开(公告)号：US20240047791A1

公开(公告)日：2024-02-08

申请号：US18347575

申请日：2023-07-06

申请人： SK ON CO., LTD.

发明人： Keun Jun LEE ,  Kyu Beom KIM

IPC分类号： H01M50/124 ,  H01M10/052 ,  H01M50/105 ,  H01M50/186 ,  H01M50/129 ,  H01M50/119 ,  H01M50/121 ,  H01M50/133

CPC分类号： H01M50/1243 ,  H01M10/052 ,  H01M50/105 ,  H01M50/186 ,  H01M50/129 ,  H01M50/119 ,  H01M50/121 ,  H01M50/133

摘要： A lithium secondary battery according to exemplary embodiments includes an electrode assembly and a pouch in which the electrode assembly is housed. The pouch includes a housing portion configured to house the electrode assembly; a peripheral portion around the housing portion; and a coating portion formed along an inner lateral surface of the housing portion and spaced apart from a side portion of the electrode assembly.

公开(公告)号：US20240030526A1

公开(公告)日：2024-01-25

申请号：US18477627

申请日：2023-09-29

申请人： NINGDE AMPEREX TECHNOLOGY LIMITED

发明人： Ying Zhi

IPC分类号： H01M50/178 ,  H01M50/186 ,  H01M50/538 ,  H01M50/105 ,  H01M50/536

CPC分类号： H01M50/178 ,  H01M50/186 ,  H01M50/538 ,  H01M50/105 ,  H01M50/536

摘要： A cell including an electrode assembly, a packaging bag, an inner electrode tab, and an outer electrode tab. The packaging bag includes a main body and an edge sealing portion, the electrode assembly and the inner electrode tab being received in the main body. The edge sealing portion is connected to a top wall of the main body, the other end of the outer electrode tab extends out of the packaging bag from the edge sealing portion. The top wall includes a first portion and a second portion disposed on both sides of the edge sealing portion in the thickness direction of the cell. A height from the first portion to a bottom wall of the main body is less than a height from the second portion to the bottom wall.

公开(公告)号：US20240030523A1

公开(公告)日：2024-01-25

申请号：US18355137

申请日：2023-07-19

申请人： AESC JAPAN LTD.

发明人： Aika OOKA

IPC分类号： H01M50/171 ,  H01M50/176 ,  H01M50/186

CPC分类号： H01M50/171 ,  H01M50/176 ,  H01M50/186

摘要： A battery cell includes a battery element, a positive electrode tab electrically connected to the battery element, a front lid member covering one end of the battery element with the positive electrode tab drawn from the front lid member, and a front bonding member bonding the front lid member and the positive electrode tab to each other.

公开(公告)号：US20240021932A1

公开(公告)日：2024-01-18

申请号：US18206238

申请日：2023-06-06

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yuka Nagata

IPC分类号： H01M50/184 ,  H01M50/186 ,  H01M50/557 ,  H01M10/058

CPC分类号： H01M50/184 ,  H01M50/186 ,  H01M50/557 ,  H01M10/058 ,  H01M10/0525

摘要： A battery includes an electrode body, a current collector terminal disposed on a side surface portion of the electrode body, and a laminate film covering the electrode body. The electrode body includes a current collector tab connected to the current collector terminal. When the battery is viewed from the current collector terminal side, the outer edge of the current collector terminal is located inside the outer edge of the electrode body. The laminate film is disposed to cover surfaces constituting the outer edge of the current collector terminal and the outer edge of the electrode body. A predetermined fused portion in which inner surfaces of the laminate film, which has a predetermined inclined surface continuously formed from the first surface at a position adjacent to an electrode body side end portion of the fused portion, are fused together is disposed at a corner portion of the current collector terminal.

公开(公告)号：US20240021881A1

公开(公告)日：2024-01-18

申请号：US18476746

申请日：2023-09-28

申请人： NGK INSULATORS, LTD.

发明人： Yukinobu YURA ,  Haruo OTSUKA ,  Shunsuke MIZUKAMI

IPC分类号： H01M10/0585 ,  H01M10/0525 ,  H01M50/109 ,  H01M50/186 ,  H01M50/181 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0569 ,  H01M10/0568 ,  H01M50/434

CPC分类号： H01M10/0585 ,  H01M10/0525 ,  H01M50/109 ,  H01M50/186 ,  H01M50/181 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0569 ,  H01M10/0568 ,  H01M50/434 ,  H01M2300/0028

摘要： Provided is a coin-shaped lithium ion secondary battery including a positive electrode layer, a negative electrode layer, a separator interposed between, an electrolytic solution, and an exterior body having a coin shape with a bulge on at least one surface and comprising a closed space accommodating the positive electrode layer, the negative electrode layer, the separator, and the electrolytic solution. The lithium ion secondary battery has a main region where all of the positive electrode layer, the negative electrode layer, and the separator overlap and a peripheral region which is devoid of at least one of the positive electrode layer, the negative electrode layer, and the separator, wherein a battery bulge ratio that is the ratio of the maximum thickness of the lithium ion secondary battery in the main region to the minimum thickness of the lithium ion secondary battery in the main region is 1.01 to 1.25.

公开(公告)号：US20240014520A1

公开(公告)日：2024-01-11

申请号：US18219021

申请日：2023-07-06

申请人： JIANGSU ZENERGY BATTERY TECHNOLOGIES CO., LTD.

发明人： Dandan CHEN ,  Juntai LU ,  Jianliang WEI ,  Yehui JIAO

IPC分类号： H01M50/534 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/184 ,  H01M50/213 ,  H01M50/55

CPC分类号： H01M50/534 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/184 ,  H01M50/213 ,  H01M50/55

摘要： The present disclosure belongs to the technical field of battery production and manufacturing, and specifically relates to a cylindrical battery and a battery module. The cylindrical battery includes: a housing, a cell and a top cover assembly. The housing is provided with an opening. The cell is arranged in the housing, the cell is provided with a first tab and a second tab opposite in polarity to the first tab, and the first tab and the second tab are both located on a same end face of the cell. The top cover assembly seals the opening and includes a cover, a first conductive portion and a second conductive portion. The cover, the first conductive portion and the second conductive portion are in insulating connection, the first conductive portion is connected with the first tab, and the second conductive portion is connected with the second tab.