公开(公告)号：US20190153266A1

公开(公告)日：2019-05-23

申请号：US16197220

申请日：2018-11-20

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Zhifang DAI ,  Luran Zhang ,  Hai Long ,  Xinghua Tao

IPC: C09J7/21 ,  C09J7/35

Abstract: A gummed paper includes: a first adhesive layer, configured to adhere to an object; a first substrate, adhered to a surface of the first adhesive layer opposite to the object; a second adhesive layer, adhered to a surface of the first substrate opposite to the first adhesive layer; a second substrate, adhered to a surface of the second adhesive layer opposite to the first substrate; and a plurality of foaming agent particles, distributed in the first adhesive layer.

公开(公告)号：US20240194952A1

公开(公告)日：2024-06-13

申请号：US18411755

申请日：2024-01-12

Applicant: Ningde Amperex Technology Limited

Inventor： Weiyuan ZHOU ,  Hai LONG ,  Zhifang DAI ,  Qingwen ZHANG

IPC: H01M10/0587 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M10/0587 ,  H01M4/0404 ,  H01M10/0525

Abstract: An electrochemical apparatus includes a battery cell formed by a first electrode plate, a separator, and a second electrode plate through winding, where the first electrode plate includes a current collector, a tab, and an active substance layer. The current collector includes a first surface facing toward the interior of the battery cell and a second surface facing away from the interior of the battery cell; the tab is electrically connected to the current collector and extends out of the current collector; and the active substance layer is provided on the first surface and the second surface of the current collector. A winding start end of the first electrode plate is provided as a single-sided zone, an insulating coating is provided on the first surface of the current collector located in the single-sided zone, and the active substance layer is provided on the second surface.

公开(公告)号：US20240136597A1

公开(公告)日：2024-04-25

申请号：US18394636

申请日：2023-12-22

Applicant: Ningde Amperex Technology Limited

Inventor： Zhifang DAI ,  Hai LONG

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/105 ,  H01M50/538

CPC classification number: H01M10/0587 ,  H01M10/0525 ,  H01M50/105 ,  H01M50/538

Abstract: A winding-type lithium ion battery includes an electrode assembly; the electrode assembly includes a first electrode plate, a separator, and a second electrode plate that are successively stacked and wound; the first electrode plate includes a first current collector and multiple first tabs electrically connected to the first current collector; the second electrode plate includes a second current collector and multiple second tabs electrically connected to the second current collector; the electrode assembly is flat, and a notch S is provided at least one corner of the electrode assembly.

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.