公开(公告)号：US11011789B2

公开(公告)日：2021-05-18

申请号：US16157181

申请日：2018-10-11

Applicant: Ningde Amperex Technology Limited

Inventor： Peipei Guo ,  Ping He ,  Yi Zhao ,  Yejun Peng ,  Wenqiang Cheng

IPC: H01M50/183 ,  H01M50/116 ,  H01M50/124 ,  H01M10/058 ,  H01M50/543

Abstract: The present application provides a package sealing structure, a preparation method thereof and a flexible packaging battery. In a package peripheral region of the package sealing structure, the insulating heat sealing layers of the two layers of packaging film face each other and are melted into one body to form an insulating fusion layer which seals and bonds the two layers of the packaging film together. The insulating fusion layer is formed with an overflow portion that overflows from the package peripheral region of the package sealing structure to the outer end surfaces of the core metal layers of the two layers of packaging film and covers completely the outer end surfaces of the core metal layer of the two layers of packaging film, so that the outer end surfaces of the core metal layers are insulated from the peripheral environment.

公开(公告)号：US20190097259A1

公开(公告)日：2019-03-28

申请号：US16203597

申请日：2018-11-28

Applicant: Ningde Amperex Technology Limited

Inventor： Peipei Guo ,  Ping He ,  Yi Zhao ,  Hongxin Fang ,  Wenqiang Cheng

IPC: H01M10/04 ,  H01M2/26

Abstract: The present application provides a second battery cell comprising first and second electrodes, first and second tabs, and a separator. The first electrode and second electrode include first and second current collectors and first and second active material layers respectively. The first and second electrodes are formed with first and second tab accommodating grooves for accommodating the first and second tabs respectively. The first tabs are arranged in pairs, and two first tabs in each pair are respectively located on the upper and lower sides of the first winding starting section of the first electrode along the thickness direction of the secondary battery cell; and/or the second tabs are arranged in pairs, and two second tabs in each pair are respectively located on the upper and lower sides of the second winding starting section of the second electrode along the thickness direction of the secondary battery cell.

公开(公告)号：US20190027758A1

公开(公告)日：2019-01-24

申请号：US16143644

申请日：2018-09-27

Applicant: Ningde Amperex Technology Limited

Inventor： Peipei Guo ,  Yi Zhao ,  Ping He ,  Yejun Peng ,  Wenqiang Cheng

IPC: H01M4/70 ,  H01M10/0525 ,  H01M10/054 ,  H01M2/26 ,  H01G11/28 ,  H01G11/52 ,  H01G11/70

Abstract: The invention provides an electrode piece, a cell and an energy storage device. The electrode piece is used to form the cell, comprising: a current collector; a diaphragm; and a groove. Among them, the current collector exposed at the bottom of the groove is a blank current collector, and the blank current collector is formed with a connecting portion; the connecting portion is cut out from the blank current collector as a part of the blank current collector and bent on the blank current collector along the width direction; and at least a portion of the connecting portion extends beyond the outer edge of the current collector in the width direction. The electrode piece of the invention can increase the energy density of the cell and the connection strength of the blank current collector of the electrode tab and the electrode piece, and reduce the production cost.

公开(公告)号：US20220328941A1

公开(公告)日：2022-10-13

申请号：US17710936

申请日：2022-03-31

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Peipei Guo ,  Yi Zhao ,  Ping He ,  Hongxin Fang ,  Wenqiang Cheng

IPC: H01M50/54 ,  H01M10/0587 ,  H01M10/04 ,  H01M50/528 ,  H01M50/538 ,  H01M10/0525 ,  H01M10/0585

Abstract: A secondary battery cell includes an anode electrode plate, an anode electrode tab, a cathode electrode plate, a cathode electrode tab and a separator. The secondary battery cell winding formation system includes a working platform, a winding mechanism, an anode electrode plate unwinding roller, an anode electrode plate cleaning mechanism, an anode electrode plate die-cutting mechanism, an anode electrode tab supply mechanism, an anode electrode tab connection mechanism, an anode electrode plate convey mechanism, a cathode electrode plate unwinding roller, a cathode electrode plate cleaning mechanism, a cathode electrode plate die-cutting mechanism, a cathode electrode tab supply mechanism a cathode electrode tab connection mechanism, a cathode electrode plate convey mechanism, a first separator unwinding roller, a second separator unwinding roller, a first separator convey mechanism and a second separator convey mechanism.

公开(公告)号：US11145868B2

公开(公告)日：2021-10-12

申请号：US16143644

申请日：2018-09-27

Applicant: Ningde Amperex Technology Limited

Inventor： Peipei Guo ,  Yi Zhao ,  Ping He ,  Yejun Peng ,  Wenqiang Cheng

IPC: H01M4/70 ,  H01G11/74 ,  H01M50/531 ,  H01G11/28 ,  H01G11/52 ,  H01G11/70 ,  H01M10/058 ,  H01M10/0525 ,  H01M10/054

Abstract: The invention provides an electrode piece, a cell and an energy storage device. The electrode piece is used to form the cell, comprising: a current collector; a diaphragm; and a groove. Among them, the current collector exposed at the bottom of the groove is a blank current collector, and the blank current collector is formed with a connecting portion; the connecting portion is cut out from the blank current collector as a part of the blank current collector and bent on the blank current collector along the width direction; and at least a portion of the connecting portion extends beyond the outer edge of the current collector in the width direction. The electrode piece of the invention can increase the energy density of the cell and the connection strength of the blank current collector of the electrode tab and the electrode piece, and reduce the production cost.

公开(公告)号：US20200013995A1

公开(公告)日：2020-01-09

申请号：US16259948

申请日：2019-01-28

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Peipei Guo ,  Ping He ,  Yejun Peng ,  Jianwei Lin ,  Bin Xie

IPC: H01M2/02 ,  H01M10/0525

Abstract: A cell and a battery are provided. The cell includes an electrode assembly and a packaging bag, the electrode assembly includes a first electrode sheet provided with a first coating layer and a first uncoated region, the packaging bag includes a first body, the electrode assembly is disposed in the packaging bag, and the first uncoated region is electrically connected with the first body. Further, the electrode assembly may further include a second electrode sheet provided with a second coating layer and a second uncoated region, the packaging bag may further include a second body, and the second uncoated region is electrically connected with the second body.

公开(公告)号：US20240222746A1

公开(公告)日：2024-07-04

申请号：US18129268

申请日：2023-03-31

Applicant: Ningde Amperex Technology Limited

Inventor： Chenchen Li ,  Ping He ,  Zhonghuang Xu ,  Ning Liu

IPC: H01M50/107 ,  H01M50/133 ,  H01M50/152

CPC classification number: H01M50/107 ,  H01M50/133 ,  H01M50/152 ,  H01M2220/30

Abstract: This application provides a housing, an arc battery, and an electric device. The housing includes two cover plates and a middle frame, where the two cover plates are both arc shaped plates, the middle frame has two opposite openings in a first direction, and the two cover plates are configured to respectively cover the two openings, and the middle frame and the two cover plates jointly define an accommodating space. The two cover plates of the housing are both arc plates, and therefore the housing can be used for arc batteries. The housing is divided into two are cover plates and a middle frame that are separately disposed.

公开(公告)号：US11329352B2

公开(公告)日：2022-05-10

申请号：US15908327

申请日：2018-02-28

Applicant: Ningde Amperex Technology Limited

Inventor： Peipei Guo ,  Yi Zhao ,  Ping He ,  Hongxin Fang ,  Wenqiang Cheng

IPC: H01M10/00 ,  H01M50/54 ,  H01M10/0587 ,  H01M10/04 ,  H01M50/528 ,  H01M50/538 ,  H01M10/0525 ,  H01M10/0585

Abstract: The present invention provides a secondary battery. The secondary battery comprises a first electrode tab and a first electrode plate. The first electrode plate first electrode plate comprises a first current collector, a first active layer, a first electrode tab receiving groove and a first electrode plate notch. The first active layer is disposed on a surface of the first current collector. The first electrode tab receiving groove is configured to receive the first electrode tab, and the first electrode tab is electrically connected with the first current collector through the first electrode tab receiving groove. The first electrode plate notch is disposed on an edge of the first electrode tab receiving groove.

公开(公告)号：US20220021087A1

公开(公告)日：2022-01-20

申请号：US17458107

申请日：2021-08-26

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Peipei Guo ,  Ping He ,  Yejun Peng

IPC: H01M50/54 ,  H01M10/04 ,  H01M50/116 ,  H01M50/533 ,  H01M50/552 ,  H01M50/502

Abstract: A battery, including a battery cell and a housing assembly accommodating the battery cell. The battery cell includes a first tab. The housing assembly includes a first housing body and a second housing body. The first housing body and the second housing body define an accommodation space to accommodate the battery cell. The first housing body and/or the second housing body include an installation portion provided with a via hole. A conductive member is disposed on an inner surface or an outer surface of the housing assembly and electrically connected to the first tab. In a through direction of the via hole, a projection of the conductive member is at least partially located in the via hole. The conductive member can avoid occupying internal space of the housing assembly, and increase the energy density of the battery. An electric device containing the battery is provided.

公开(公告)号：US11211652B2

公开(公告)日：2021-12-28

申请号：US16258689

申请日：2019-01-28

Applicant: Ningde Amperex Technology Limited

Inventor： Sen Lin ,  Peipei Guo ,  Ping He ,  Qingshan Wen

IPC: H01M10/637 ,  H01M10/44 ,  H01M10/42 ,  H01M50/581

Abstract: Embodiments of the present application provide a protective device for cell including a first conductive component and a second conductive component that are disposed oppositely and spaced apart. A switching unit disposed between the first conductive component and the second conductive component is configured to disconnect the first conductive component from the second conductive component based on a predetermined temperature of the cell. The purpose of the present application is to provide a protection device for cell to timely cut off the internal circuit of the cell when the internal temperature of the cell is high.