公开(公告)号：US12009483B2

公开(公告)日：2024-06-11

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: H01M10/00 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/528 ,  H01M50/536 ,  H01M50/538

CPC classification number: H01M10/0585 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/528 ,  H01M50/536 ,  H01M50/538 ,  H01M2220/20

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：US11024908B2

公开(公告)日：2021-06-01

申请号：US16230774

申请日：2018-12-21

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Wenqiang Cheng

IPC: H01M50/116 ,  H01M10/0525 ,  H01M10/04 ,  H01M50/124 ,  H01M50/557 ,  H01M8/2475 ,  H01G9/08

Abstract: The present application relates to an electrochemical device and a method for manufacturing the same. The electrochemical device includes: a first outer case defining an accommodating chamber therein; an electrode assembly accommodated in the accommodating chamber of the first outer case; and a second outer case including a heat shrinkable wrapping layer, the first outer case being wrapped in the heat shrinkable wrapping layer.

公开(公告)号：US11024868B2

公开(公告)日：2021-06-01

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 ,  H01M4/13 ,  H01M50/538

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：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：US20170288192A1

公开(公告)日：2017-10-05

申请号：US15475167

申请日：2017-03-31

Applicant: Ningde Amperex Technology Limited

Inventor： Shitong Chen ,  Xinghua Tao ,  Shengwu Zhang ,  Wenqiang Cheng

IPC: H01M2/16 ,  H01M10/0587 ,  H01M10/0525

CPC classification number: H01M2/1653 ,  H01M2/1646 ,  H01M2/1686 ,  H01M10/0525 ,  H01M10/0587

Abstract: The present invention provides a separator for a lithium ion battery. The separator includes a substrate, an inorganic coating on at least one surface of the substrate, and an organic coating on at least one surface of the inorganic coating, wherein the coating density of the organic coating is 0.1 mg/1540.25 mm2˜10 mg/1540.25 mm2. Compared with the prior art, the separator of the present invention can improve the deformation of the lithium ion battery and enhance the expansion force that the lithium ion battery can endure, thereby improving the cycle life of the lithium ion battery. In addition, the present invention also provides a lithium ion battery having the separator of the present invention.

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：US10693113B2

公开(公告)日：2020-06-23

申请号：US15999755

申请日：2018-08-20

Applicant: Ningde Amperex Technology Limited

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

IPC: H01M2/14 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/13 ,  H01M2/26 ,  H01M4/139 ,  H01M2/16

Abstract: The present application relates to the field of energy storage devices and, in particular, relates to a battery electrode, and a secondary battery using the battery electrode. The battery electrode comprises an electrode tab, a current collector, and a diaphragm attached onto at least one surface of the current collector, wherein the diaphragm is provided with a groove, the electrode tab is embedded into the groove and is electrically connected with the current collector, the electrode tab comprises an embedded portion embedded in the groove and an exposed portion protruded outside the groove; wherein an upper surface of the embedded portion is covered with an active material coating layer. According to the present application, an embedded electrode tab is adopted, and a diaphragm covers a surface of an embedded portion.