公开(公告)号：US20240339667A1

公开(公告)日：2024-10-10

申请号：US18748455

申请日：2024-06-20

Applicant: Ningde Amperex Technology Limited

Inventor： Qiao ZENG ,  Jing JIANG ,  Kefei WANG

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M10/0587

CPC classification number: H01M10/0585 ,  H01M10/0525 ,  H01M10/0587

Abstract: A battery cell, including a first electrode plate, a second electrode plate, a separator, and a first electrode tab. The separator is disposed between the first electrode plate and the second electrode plate. The first electrode plate, the second electrode plate, and the separator are wound along a length direction of the first electrode plate. The first electrode tab is located at an end in a width direction of the first electrode plate. In the length direction of the first electrode plate, the first electrode plate includes a first edge, and a first notch is disposed at the first edge.

公开(公告)号：US20210194081A1

公开(公告)日：2021-06-24

申请号：US17195508

申请日：2021-03-08

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Jing JIANG ,  Kefei Wang

IPC: H01M50/116 ,  H01M4/62 ,  H01M4/13 ,  H01M10/04 ,  H01M50/24 ,  H01M50/571

Abstract: A battery includes a first conductive layer having a folded portion, a first edge, and a second edge opposite to the first edge in a first direction of the battery; a first conductive plate located on the first conductive layer; and a first layer comprising an insulating material covering at least one portion of the folded portion, and being distant from the first conductive layer. The first layer partially covers the first edge of the first conductive layer

公开(公告)号：US20240380074A1

公开(公告)日：2024-11-14

申请号：US18783855

申请日：2024-07-25

Applicant: Ningde Amperex Technology Limited

Inventor： Jing JIANG

IPC: H01M50/503 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/105

Abstract: A battery includes an electrode assembly, a housing, a plurality of first tabs, and a first conductive plate. The electrode assembly includes a first conductive layer, a second conductive layer, and a first layer arranged between the first conductive layer and the second conductive layer. The plurality of first tabs are arranged on one side of the first conductive layer and bent within the housing to form a first tab group. The first conductive plate includes a first segment connected to the first tab group and a second segment connected to the first segment, where the second segment at least partially extends out of the housing and extends in a first direction, and an included angle θ is formed between the first segment and the second segment, the included angle θ is greater than or equal to 60° and less than 90°.

公开(公告)号：US20200227759A1

公开(公告)日：2020-07-16

申请号：US16829988

申请日：2020-03-25

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Jing JIANG

IPC: H01M4/78 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2/26 ,  H01M4/66

Abstract: A cell includes a first current collector and a second current collector. A tail end of the first current collector exceeds a tail end of the second current collector by at least half a circle in a winding direction. The inventor of the present application finds that after the length of the first current collector is increased, and the tail end of the first current collector exceeds the tail end of the second current collector by at least half a circle, the following situation may occur: the outermost circle of the cell is the first current collector, the secondary outer circle is the first current collector, and the next secondary outer circle is the second current collector, such that both the outermost circle and the secondary outer circle of the cell are the first current collector.

公开(公告)号：US20200313145A1

公开(公告)日：2020-10-01

申请号：US16825949

申请日：2020-03-20

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Jing JIANG

IPC: H01M2/26 ,  H01M2/34 ,  H01M2/16

Abstract: The present disclosure provides an electrode assembly including a first electrode sheet, the first electrode sheet includes a first current collector and a first tab. The first tab extends from a surface of the first electrode sheet and electrically connected with the first current collector, a plurality of tabs are provided and the number of the first tabs is q. The plurality of first tabs include a first breakable tab, the first breakable tab includes a breakable part and a first insulating layer, the first insulating layer wraps the breakable part, the breakable part includes a first segment and a second segment, the first segment is connected with the second segment, and an included angle between the first segment and the second segment is less than 90°. The number of first breakable tabs is p, and p/q≤1/2.