公开(公告)号：US20230223602A1

公开(公告)日：2023-07-13

申请号：US18187945

申请日：2023-03-22

Applicant: Ningde Amperex Technology Limited

Inventor： Mingyue YUANYIN ,  Dongyang YAN ,  Qiao ZENG

IPC: H01M10/0587 ,  H01M4/13 ,  H01M50/586 ,  H01M50/59 ,  H01M50/533 ,  H01M50/534 ,  H01M4/36

CPC classification number: H01M10/0587 ,  H01M4/13 ,  H01M50/586 ,  H01M50/59 ,  H01M50/533 ,  H01M50/534 ,  H01M4/366 ,  H01M2004/021

Abstract: An electrochemical apparatus including an electrode assembly including a first electrode plate, a second electrode plate and a separator disposed between the first electrode plate and the second electrode plate. The first electrode plate includes a current collector and an active material layer, the current collector includes a first zone and a second zone, the second zone is provided with an active material layer, the first zone includes a third zone and a fourth zone, the third zone is arranged in overlap with the separator, and the fourth zone is provided with a conductive layer. The conductive layer is disposed in a zone of the current collector that has no active material layer disposed thereon and that does not overlap the separator.

公开(公告)号：US20240030563A1

公开(公告)日：2024-01-25

申请号：US18374698

申请日：2023-09-29

Applicant: Ningde Amperex Technology Limited

Inventor： Qiao ZENG ,  Dongyang YAN

IPC: H01M50/533 ,  H01M50/46 ,  H01M50/109

CPC classification number: H01M50/533 ,  H01M50/46 ,  H01M50/109

Abstract: A battery includes a housing; an insulation member; and a first active substance layer and a second active substance layer having opposite polarities. The housing includes a first wall body, a second wall body, and a third wall body, forming an accommodation cavity. The first wall body is a conductive wall body and disposed opposite to the third wall body. The insulation member, the first active substance layer, and the second active substance layer are accommodated in the accommodating cavity. The second active substance layer is disposed on a surface of the first wall body that faces the third wall body. The first active substance layer is disposed between the second active substance layer disposed on the surface of the first wall body and the third wall body. The insulation member is disposed between the first active substance layer and the second active substance layer.

公开(公告)号：US20240178434A1

公开(公告)日：2024-05-30

申请号：US18437277

申请日：2024-02-09

Applicant: Ningde Amperex Technology Limited

Inventor： Yuyang DONG ,  Dongyang YAN ,  Qiao ZENG

IPC: H01M10/04 ,  H01M10/42 ,  H01M50/105 ,  H01M50/131 ,  H01M50/533 ,  H01M50/534 ,  H01M50/536

CPC classification number: H01M10/0431 ,  H01M10/4221 ,  H01M50/105 ,  H01M50/131 ,  H01M50/533 ,  H01M50/534 ,  H01M50/536 ,  H01M2220/30

Abstract: An electrode assembly includes a stacked portion and a second layer. The stacked portion includes a first layer disposed between a first conductive layer and a second conductive layer. The stacked portion is a wound structure including a first surface and a first end portion. The second layer is connected to the first surface. When viewed in the first direction, the first surface has a first region located on a first side of the first end portion and a second region located on a second side of the first end portion. In a second direction perpendicular to the first direction, the first side and the second side are located on two opposite sides of the first end portion. When viewed in a winding direction of the stacked portion, the second region is closer to the first end portion than the first region.

公开(公告)号：US20220393247A1

公开(公告)日：2022-12-08

申请号：US17886708

申请日：2022-08-12

Applicant: Ningde Amperex Technology Limited

Inventor： Dongyang YAN

IPC: H01M10/0585 ,  H01M10/0587 ,  H01M50/178 ,  H01M50/133

Abstract: A battery cell includes an electrode assembly and a housing. A thickness of the electrode assembly is T1 mm. The housing includes a first surface; a second surface at a distance T2 mm from the first surface; a first lateral edge with arc shape and connected to the second surface and possessing a radius of R mm; a third surface connected to the first lateral edge; and a second lateral edge including a first part extending away from the electrode assembly by starting from a first edge of the first surface and a second edge of the third surface, and a second part extending toward the electrode assembly and possessing an ending edge connected to the third surface. Along the thickness direction, a distance between the second edge of the third surface and the ending edge is Z mm, and (T2−Z)/2≤R≤T1/2+0.3.

公开(公告)号：US20210218051A1

公开(公告)日：2021-07-15

申请号：US16652521

申请日：2020-01-21

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Dongyang YAN ,  Liangzhen XIAO

IPC: H01M10/058 ,  H01M50/183 ,  H01M10/04 ,  H01M50/463

Abstract: The present application relates to a battery cell and an electronic device. The battery cell according to an embodiment comprises: an electrode assembly, including an electrode plate; and a shell, receiving the electrode assembly and including a first edge seal, a second edge seal and a circular edge seal connecting the first edge seal and the second edge seal, wherein the circular edge seal defines a virtual circular arc region with a radius R and a radian angle Ø, wherein the electrode plate has a first edge, a second edge, and a third edge connecting the first edge and the second edge, and a virtual extension line of the first edge and a virtual extension line of the second edge intersect to form a virtual intersection point A; a point on the third edge has a minimum distance L relative to the virtual intersection point A; and the virtual extension lines of the first edge and the second edge form a corner at the virtual intersection point A toward the third edge, and an angle of the corner is greater than 0 degrees and less than 180 degrees. The battery cell and the electronic device provided by the present application have higher safety performance, a higher space utilization ratio and a higher energy density.

公开(公告)号：US20250167409A1

公开(公告)日：2025-05-22

申请号：US19027953

申请日：2025-01-17

Applicant: Ningde Amperex Technology Limited

Inventor： Dongyang YAN

IPC: H01M50/536 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/533 ,  H01M50/586 ,  H01M50/595

Abstract: An electrochemical device includes a first electrode plate and a first conductive plate. The first electrode plate includes a first current collector and a first conductive material layer. The first conductive material layer is disposed on a first surface of the first current collector. The first conductive material layer is provided with a first opening, where a first region of the first surface exposed at the first opening. The first conductive plate is connected to the first region. The first electrode plate includes a first end edge, and the first end edge is provided with a first recess. When viewed from a first direction, the first recess is spaced apart from the first region. The first conductive plate covers a part of the first region, a part of the first conductive material layer, and a part of the first recess.

公开(公告)号：US20250132452A1

公开(公告)日：2025-04-24

申请号：US18989718

申请日：2024-12-20

Applicant: Ningde Amperex Technology Limited

Inventor： Huimin GAO ,  Dongyang YAN

IPC: H01M50/342 ,  H01M50/109 ,  H01M50/533 ,  H01M50/536

Abstract: A button cell includes an electrode assembly, a first electrode tab, and a housing provided with an accommodating cavity. The housing includes a first wall, a first end of the first electrode tab is connected to the electrode assembly, and a second end of the first electrode tab is connected to the first wall. The housing is provided with a groove including at least two continuously connected curves. Viewed from a direction perpendicular to the first wall, a projection of the first electrode tab on the first wall is a first projection, at least a portion of the at least two continuously connected curves is located outside the first projection, and a quantity of intersection points between a contour of the first projection and the at least two continuously connected curves is less than or equal to 2.

公开(公告)号：US20240356175A1

公开(公告)日：2024-10-24

申请号：US18763540

申请日：2024-07-03

Applicant: Ningde Amperex Technology Limited

Inventor： Dongyang YAN

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/119 ,  H01M50/533 ,  H01M50/534 ,  H01M50/578

CPC classification number: H01M50/536 ,  H01M10/0431 ,  H01M50/119 ,  H01M50/533 ,  H01M50/534 ,  H01M50/578 ,  H01M2200/20

Abstract: An electrode assembly includes a first conductive portion, a second conductive portion and a first metal portion. The first conductive portion includes a first region provided with a conductive material layer and a second region separated from the first region; the first metal portion is welded with the second region, and the first metal portion has a third region where a weld mark is formed; when being observed in a first direction perpendicular to a first surface of the first conductive portion, the second region has a first end and a second end; the third region has a third end and a fourth end; the first metal portion has a fifth end in a second direction, and a sixth end disposed on an opposite side of the fifth end in the second direction and closer to the second end than the fifth end.

公开(公告)号：US20230231205A1

公开(公告)日：2023-07-20

申请号：US18187949

申请日：2023-03-22

Applicant: Ningde Amperex Technology Limited

Inventor： Qiao ZENG ,  Dongyang YAN ,  Zaibin XIE

IPC: H01M10/0587 ,  H01M50/593

CPC classification number: H01M10/0587 ,  H01M50/593

Abstract: A battery includes an electrode assembly; and a housing assembly made of a conductive material for accommodating the electrode assembly. The housing assembly includes a first housing and a second housing electrically insulated from each other. The electrode assembly includes a first electrode plate having a first current collector and a first active material layer; a second electrode plate having a second current collector and a second active material layer; and a separator. The first current collector includes a first blank foil region located at an edge region of the first current collector, extending from a winding start end toward a winding termination end of the first electrode plate and electrically connected to the first housing. The second current collector includes a second blank foil region located at a winding start end and/or a winding termination end of the second electrode plate; and electrically connected to the second housing.

公开(公告)号：US20230037223A1

公开(公告)日：2023-02-02

申请号：US17957223

申请日：2022-09-30

Applicant: Ningde Amperex Technology Limited

Inventor： Yuyang DONG ,  Dongyang YAN ,  Qiao ZENG

IPC: H01M50/14 ,  H01M50/126 ,  H01M50/133

Abstract: A battery includes an electrode assembly, a first insulation layer, a second insulation layer, and at least one first adhesion portion. The electrode assembly includes a first surface and a second surface provided back away from the first surface; the first insulation layer is provided on the first surface; the second insulation layer is provided on the first surface and spaced apart from the first insulation layer; and the first adhesion portion is provided on the first surface and located in a zone between the first insulation layer and the second insulation layer.