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：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：US20170170456A1

公开(公告)日：2017-06-15

申请号：US15444196

申请日：2017-02-27

Applicant: DONGGUAN AMPEREX TECHNOLOGY LIMITED ,  NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Bin ZHANG ,  Yi Zhao ,  Mugui Chen ,  Ping He ,  Hongxin Fang

IPC: H01M4/04 ,  B23K26/352 ,  B23K26/00 ,  H01M2/26 ,  H01M10/0525

CPC classification number: H01M4/0471 ,  B23K26/352 ,  H01M2/26 ,  H01M4/04 ,  H01M4/64 ,  H01M4/661 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30

Abstract: A device for removing a coating layer of an electrode plate, an electrode plate comprises a current collector and a coating layer coated on each of at least one surface of the current collector, the device for removing the coating layer of the electrode plate comprises: a conveying system for conveying the electrode plate which has the coating layer to be removed; at least one wetting mechanism, each wetting mechanism is provided at the coating layer to be removed on one surface of the electrode plate which is conveyed by the conveying system and wets the coating layer on the one surface of the electrode plate within the region where the coating layer will be removed by using a solvent; a laser removing system; and a control system communicating with the conveying system, the wetting mechanism and the laser removing system. The laser removing system comprises: at least one laser emitting head for emitting a laser beam and projecting the laser beam onto the coating layer on the corresponding surface of the electrode plate within the region where the coating layer will be removed and which is wetted by the wetting mechanism to make the solvent which wets the coating layer of the electrode plate within the region where the coating layer will be removed vaporized, so as to remove the coating layer on the surface of the electrode plate within the region where the coating layer will be removed and in turn expose the current collector on the surface of the electrode plate corresponding to the region where the coating layer will be removed.

公开(公告)号：US20240356171A1

公开(公告)日：2024-10-24

申请号：US18758677

申请日：2024-06-28

Applicant: Ningde Amperex Technology Limited

Inventor： Fang Lv ,  Yi Zhao ,  Hua Wu

IPC: H01M50/533 ,  H01M4/66 ,  H01M4/70 ,  H01M50/534 ,  H01M50/536

CPC classification number: H01M50/533 ,  H01M4/667 ,  H01M4/70 ,  H01M50/534 ,  H01M50/536 ,  H01M2220/30

Abstract: A battery includes an electrode plate assembly. An electrode plate assembly includes an electrode plate and a conduction element. The electrode plate includes a current collector. The current collector includes a first conductive material layer, an insulating material layer, and a second conductive material layer. The current collector is provided with a through opening. The conduction element includes a first conduction part, a second conduction part, and a third conduction part. The first conduction part is disposed on a first side of the current collector and electrically connected to the first conductive material layer. The second conduction part is disposed on a second side of the current collector and electrically connected to the second conductive material layer. The third conduction part is disposed at the through opening and electrically connected to both the first conduction part and the second conduction part.

公开(公告)号：US20230344019A1

公开(公告)日：2023-10-26

申请号：US18215906

申请日：2023-06-29

Applicant: Ningde Amperex Technology Limited

Inventor： Hua Wu ,  Yi Zhao ,  Yejun Peng ,  Peipei Guo

IPC: H01M10/42 ,  H01M4/13 ,  H01M10/0587 ,  H01M50/531 ,  H01M50/586 ,  H01M50/59

CPC classification number: H01M10/4235 ,  H01M4/13 ,  H01M10/0587 ,  H01M50/531 ,  H01M50/586 ,  H01M50/59

Abstract: An electrode assembly, including a positive electrode plate, a negative electrode plate, a separator, a positive electrode tab. The positive electrode plate includes a positive electrode current collector and a positive electrode active substance layer, the negative electrode plate includes a negative electrode current collector and a negative electrode active substance layer disposed on surface of the negative electrode current collector. The positive electrode active substance layer is provided with a first groove. The negative electrode active substance layer is provided with a second groove, the second groove is corresponding to the first groove, the second groove extends along a thickness direction of the electrode assembly to the negative electrode current collector. The second groove is provided with a first protective adhesive inside, so as to ensure thickness consistency between the groove and a body zone of the electrode plate and reducing the risk of short circuit.

公开(公告)号：US11658344B2

公开(公告)日：2023-05-23

申请号：US16194539

申请日：2018-11-19

Applicant: Ningde Amperex Technology Limited

Inventor： Peipei Guo ,  Liangzhen Xiao ,  Wei Gao ,  Kefei Wang ,  Yi Zhao ,  Ping He

IPC: H01M10/0587 ,  H01M10/04 ,  H01M50/536 ,  H01M4/70 ,  H01M10/0525

CPC classification number: H01M10/0587 ,  H01M4/70 ,  H01M10/0431 ,  H01M50/536 ,  H01M10/0525

Abstract: The present disclosure provides a wound-type electrode assembly comprising a first and second electrode plates, a first and second electrode tabs, and a separator. The first and second electrode plates include a first current collector and active substance layer, and a second current collector and active substance layer. Two surfaces of the first current collector of the first winding start section of the first electrode plate are not coated with first active substance layer and defined as a first start blank current collector, the first start blank current collector is welded to a first electrode tab. The second pole piece comprises a second groove, a bottom of which is a second current collector and a circumference thereof is a second active substance layer; the second electrode tab is accommodated in the second groove and electrically connected to the second current collector at the second groove.

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.