公开(公告)号：US20220115712A1

公开(公告)日：2022-04-14

申请号：US17281360

申请日：2020-05-05

Applicant: Ningde Amperex Technology Limited

Inventor： Pan WANG ,  Xiao CHEN ,  Huijun LIU ,  Changchuan SHI

IPC: H01M10/0587 ,  H01M50/531

Abstract: An electrode assembly formed by winding a first electrode plate, a separator and a second electrode plate. The first electrode plate comprises a first current collector and a first active material layer arranged on a surface of the first current collector. A winding terminating end of the first electrode plate is positioned on an outer side of a winding terminating end of the second electrode plate facing away from a winding core. The first active material layer on the winding terminating end of the first electrode plate covers one surface of the first current collector facing toward the second electrode plate, The electrode assembly further comprises a first adhesive member arranged on an outer surface of the electrode assembly. The electrode assembly takes the winding terminating end of the first electrode plate as the tail end. The application further provides a battery having the same.

公开(公告)号：US20220123313A1

公开(公告)日：2022-04-21

申请号：US17281383

申请日：2020-05-20

Applicant: Ningde Amperex Technology Limited

Inventor： Pan WANG ,  Tingling LEI ,  Hai LONG ,  Huijun LIU

IPC: H01M4/62 ,  H01M10/0587

Abstract: A battery cell includes a first electrode plate, a second electrode plate, and an insulating adhesive. The first electrode plate includes a first current collector, a first coating, and a first active layer, the first coating is disposed between the first current collector and the first active layer and includes a thermal expansion material. The first electrode plate and the second electrode plate are wound at intervals, the first electrode plate is the outermost electrode plate of the battery cell and further includes a first end which is a winding ending end, a surface of the first current collector at the first end facing toward the center of the battery cell is provided with the first active layer. The insulating adhesive includes a first sub-insulating adhesive disposed on a surface of the first current collector on the outermost side of the battery cell facing away from the first active layer.

公开(公告)号：US20230116555A1

公开(公告)日：2023-04-13

申请号：US17990109

申请日：2022-11-18

Applicant: Ningde Amperex Technology Limited

Inventor： Pan WANG ,  Zhifang DAI ,  Huijun LIU ,  Hai LONG

IPC: H01M10/0587 ,  H01M50/531

Abstract: A battery cell, including a first electrode plate and a second electrode plate. The first electrode plate includes a first current collector and a first active layer, the first electrode plate includes a first end portion, the first end portion is arranged on an outer side of the battery cell, and the first active layer is arranged on a surface of the first current collector in the first end portion. The first electrode plate and the second electrode plate are spaced apart and wound, and an electrode plate at the outermost circle of the battery cell is the first electrode plate. A first end face, and a first cambered zone connected to the first end face are defined. The first end portion is disposed in the first cambered zone. Also, a battery and electronic apparatus using the battery cell.