公开(公告)号：US20240154265A1

公开(公告)日：2024-05-09

申请号：US18280399

申请日：2023-01-27

Applicant: LG Energy Solution, Ltd.

Inventor： Taejong Kim ,  Sang Myeon Lee

IPC: H01M50/534 ,  H01M50/54

CPC classification number: H01M50/534 ,  H01M50/54

Abstract: The present disclosure relates to an electrode assembly for a secondary battery comprising two or more electrodes and one or more separators stacked in a stacking direction.
The two or more electrodes respectively comprise electrode tabs,



the electrode tabs include a metallized film in which metal layers are formed on both surfaces of a polymer substrate and
the electrode tabs are arranged so as not to wholly overlap in the stacking direction




Tabs are electrically connected through a first metal connector at an upper portion where the metal layer is formed, and are electrically connected through a second metal connector at a lower portion where the metal layer is formed. The present disclosure also relates to a secondary battery including the electrode assembly.

公开(公告)号：US20240145827A1

公开(公告)日：2024-05-02

申请号：US18331446

申请日：2023-06-08

Applicant: FORM ENERGY, INC.

Inventor： Mitchell Terrance WESTWOOD ,  Alexander H. SLOCUM ,  William Henry WOODFORD ,  Yet-Ming CHIANG ,  Ian Salmon MCKAY ,  Mateo Cristian JARAMILLO ,  Eric WEBER ,  Jarrod David MILSHTEIN ,  Liang SU ,  Rupak CHAKRABORTY ,  Rachel Elizabeth MUMMA ,  Marc-Antoni GOULET ,  Brian BEGGAN ,  Marco FERRARA ,  Theodore Alan WILEY

IPC: H01M50/152 ,  H01M50/184 ,  H01M50/191 ,  H01M50/46 ,  H01M50/54 ,  H01M50/636

CPC classification number: H01M50/152 ,  H01M50/184 ,  H01M50/191 ,  H01M50/46 ,  H01M50/54 ,  H01M50/636 ,  H01M50/414

Abstract: Systems and methods of the various embodiments may provide a battery including a rolling diaphragm configured to move to accommodate an internal volume change of one or more components of the battery. Systems and methods of the various embodiments may provide a battery housing including a rolling diaphragm seal disposed between an interior volume of the battery and an electrode assembly within the battery. Various embodiments may provide an air electrode assembly including an air electrode supported on a buoyant platform such that the air electrode is above a surface of a volume of electrolyte when the buoyant platform is floating in the electrolyte.

公开(公告)号：US20240128602A1

公开(公告)日：2024-04-18

申请号：US18399740

申请日：2023-12-29

Applicant: XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO., LTD.

Inventor： Long ZHOU ,  Congmiao WU ,  Min GUO ,  Jinhua LAN

IPC: H01M50/533 ,  H01M50/536 ,  H01M50/538 ,  H01M50/54

CPC classification number: H01M50/533 ,  H01M50/536 ,  H01M50/538 ,  H01M50/54

Abstract: Provided are a current collector assembly, a battery cell, and a battery pack. The current collector assembly includes a plurality of layers of tabs, a protection plate, a connection plate, and at least one protrusion. The plurality of layers of tabs is stacked in a thickness direction of each of the tabs. The protection plate is arranged at a side of the plurality of layers of tabs in the thickness direction of each of the tabs. The connection plate is arranged at another side of the plurality of layers of tabs in the thickness direction of each of the tabs. The at least one protrusion is arrange between the connection plate and the protection plate. Each of the at least one protrusion penetrates the plurality of layer of tabs, and is connected to the plurality of layers of tab.

公开(公告)号：US20240128450A1

公开(公告)日：2024-04-18

申请号：US18392953

申请日：2023-12-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Eiichi KOGA ,  Kazuhiro MORIOKA ,  Yasutaka TSUTSUI

IPC: H01M4/525 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/617 ,  H01M10/653 ,  H01M10/654 ,  H01M50/54 ,  H01M50/557

CPC classification number: H01M4/525 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/617 ,  H01M10/653 ,  H01M10/654 ,  H01M50/54 ,  H01M50/557

Abstract: A battery includes: an electrode layer; a counter electrode layer, which is a counter electrode for the electrode layer; a solid electrolyte layer between the electrode layer and the counter electrode layer; and an electrode current collector electrically coupled to the electrode layer. The solid electrolyte layer includes a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is positioned within a region where the electrode layer and the counter electrode layer face each other. Moreover, a second density, which is of the second solid electrolyte material in the second region, is higher than a first density, which is of the first solid electrolyte material in the first region.

公开(公告)号：US11962043B2

公开(公告)日：2024-04-16

申请号：US17028304

申请日：2020-09-22

Applicant: Zhuhai CosMX Battery Co., Ltd.

Inventor： Ning Peng

IPC: H01M50/54 ,  B23K26/0622 ,  B23K26/22 ,  H01M4/66 ,  H01M50/536

CPC classification number: H01M50/54 ,  B23K26/0622 ,  B23K26/22 ,  H01M4/667 ,  H01M50/536

Abstract: The present disclosure provides a battery, a manufacturing method thereof and an electronic product. The battery cell includes electrodes and tabs, where each of the electrodes includes a current collector and an active material layer, and the current collector includes a coating zone coated with the active material layer and an empty foil zone, and an end of a tab overlaps the empty foil zone and the tab and the empty foil zone are connected by laser welding; the side of the empty foil zone facing away from the tab has a plurality of dot-shaped welding marks arranged at intervals, and the dot-shaped welding marks include a concave part and an annular convex part surrounding the concave part. The contact area between the annular convex part and the separator between the positive electrode and the negative electrode is large, and the separator is less likely to be pierced.

公开(公告)号：US20240079737A1

公开(公告)日：2024-03-07

申请号：US18461748

申请日：2023-09-06

Applicant: Ningde Amperex Technology Limited

Inventor： Enchao HAO

IPC: H01M50/54 ,  H01M10/0585 ,  H01M50/474 ,  H01M50/486 ,  H01M50/528

CPC classification number: H01M50/54 ,  H01M10/0585 ,  H01M50/474 ,  H01M50/486 ,  H01M50/528 ,  H01M10/052

Abstract: An electrode assembly includes a number of positive electrode plates, a number of separators, and a number of negative electrode plates. The positive electrode plates, the separators, and the negative electrode plates are stacked sequentially. The positive electrode plate has an extended first tab portion and second tab portion. The first tab portions of the positive electrode plates are stacked and electrically connected to form a main positive electrode tab, and the second tab portions of the positive electrode plates are stacked and electrically connected to form a backup positive electrode tab. The negative electrode plate has an extended third tab portion and fourth tab portion. The third tab portions of the negative electrode plates are stacked and electrically connected to form a main negative electrode tab, and the fourth tab portions of the negative electrode plates are stacked and electrically connected to form a backup negative electrode tab.

公开(公告)号：US20240079692A1

公开(公告)日：2024-03-07

申请号：US18462062

申请日：2023-09-06

Applicant: SK ON CO., LTD.

Inventor： Jae Sik SHIN ,  Seung Hoon JU ,  Jae Gyu BYUN ,  Gi Jeong SEO

IPC: H01M50/14 ,  H01M50/54 ,  H01M50/567

CPC classification number: H01M50/14 ,  H01M50/54 ,  H01M50/567

Abstract: Electrode assemblies and battery cells including the electrode assemblies are disclosed. In some implementations, a battery cell includes: an electrode assembly; one or more protective assemblies disposed on at least one side of the electrode assembly; and a case having an internal space in which the electrode assembly is accommodated, wherein the one or more protective assemblies includes: a protective frame including an insulating material; and a connection unit coupled to the protective frame and electrically connected to the electrode assembly.

公开(公告)号：US11923558B2

公开(公告)日：2024-03-05

申请号：US16488366

申请日：2018-02-22

Applicant: SANYO Electric Co., Ltd.

Inventor： Ryoichi Wakimoto

IPC: H01M50/342 ,  H01M50/176 ,  H01M50/184 ,  H01M50/186 ,  H01M50/191 ,  H01M50/536 ,  H01M50/54 ,  H01M50/55 ,  H01M50/553 ,  H01M50/562 ,  H01M50/566 ,  H01M50/578

CPC classification number: H01M50/342 ,  H01M50/176 ,  H01M50/184 ,  H01M50/186 ,  H01M50/553 ,  H01M50/191 ,  H01M50/536 ,  H01M50/54 ,  H01M50/55 ,  H01M50/562 ,  H01M50/566 ,  H01M50/578

Abstract: A rectangular secondary battery includes a rectangular casing that contains an electrode body, a sealing plate that seals an opening of the rectangular casing; a positive electrode tab group that is composed of a plurality of positive electrode tabs, a positive electrode terminal that is electrically connected to the positive electrode tab group and attached to the sealing plate, a second positive electrode current collector that is electrically connected to the positive electrode tab group and the positive electrode terminal, and a second insulator that is disposed between the sealing plate and the second positive electrode current collector. The sealing plate has a gas discharge valve. The sealing plate has a first recess. The second insulator has a first protrusion. In a transversal direction of the sealing plate, the first recess is displaced from a center of the sealing plate toward an end portion of the sealing plate.

公开(公告)号：US20240055706A1

公开(公告)日：2024-02-15

申请号：US18495544

申请日：2023-10-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei CHEN ,  Zelin JIN ,  Dongyang SHI

IPC: H01M50/176 ,  H01M50/103 ,  H01M50/119 ,  H01M50/124 ,  H01M50/121 ,  H01M50/15 ,  H01M50/159 ,  H01M50/171 ,  H01M50/474 ,  H01M50/54

CPC classification number: H01M50/176 ,  H01M50/103 ,  H01M50/119 ,  H01M50/1243 ,  H01M50/1245 ,  H01M50/121 ,  H01M50/15 ,  H01M50/159 ,  H01M50/171 ,  H01M50/474 ,  H01M50/54 ,  H01M2220/20

Abstract: A battery includes a plurality of groups of electrode assemblies and an insulating housing. The insulating housing includes a plurality of accommodating spaces, each accommodating space has an opening. Adjacent accommodating spaces are separated by a barrier. Each accommodating space is used to accommodate one group of the electrode assemblies. The battery further includes an end cover provided with a plurality of pairs of electrode terminals. Each pair of electrode terminals corresponds to one of the accommodating spaces. The end cover is connected to the insulating housing, and covers openings of the plurality of accommodating spaces, so as to enclose the plurality of groups of electrode assemblies in the plurality of accommodating spaces.

公开(公告)号：US20240047789A1

公开(公告)日：2024-02-08

申请号：US18465236

申请日：2023-09-12

Applicant: Ningde Amperex Technology Limited

Inventor： Kun YAN ,  Zhonghuang XU

IPC: H01M50/105 ,  H01M50/474 ,  H01M10/04 ,  H01M50/538 ,  H01M50/54

CPC classification number: H01M50/105 ,  H01M50/474 ,  H01M10/0431 ,  H01M50/538 ,  H01M50/54 ,  H01M10/0463

Abstract: A flexible battery includes a plurality of electrode assemblies, an electrical connector, elastic insulation members, and a package bag. The electrical connector is electrically connected to two adjacent electrode assemblies. The elastic insulation members are disposed at two end terminals of the electrical connector and have a gap with the electrode assemblies. The package bag is provided with a first dent accommodating the electrode assembly and the elastic insulation member, and a second dent accommodating the electrical connector. In the flexible battery, stress concentration caused by bending after packaging can be effectively reduced, so the package bag and electrical connector of the flexible battery are not prone to fracture, providing effective protection for the electrode assemblies, improving service life of the flexible battery, and ensuring stable performance and safety of the flexible battery.