公开(公告)号：US11444349B2

公开(公告)日：2022-09-13

申请号：US16168826

申请日：2018-10-24

Applicant: Ningde Amperex Technology Limited

Inventor： Jiaxin An ,  Jinhua He ,  Wei Gao ,  Jinhui Chen ,  Kun Wang

IPC: H01M50/116 ,  H01M50/20 ,  H01M50/24 ,  H01M10/04 ,  H01M50/54 ,  H01M50/103 ,  H01M50/557

Abstract: The present application discloses a battery to alleviate the impact on the main body of the battery and for improving the safety performance of the battery. The battery comprises a package case and a circuit board, wherein the package case forms a first surface and a buffer member is arranged between the circuit board and the first surface. In the present application, the buffer member between the circuit board and the first surface may alleviate the force received on the first surface, thereby alleviating the impact on the electrode assembly of the battery, avoiding the damage of the positive and negative electrode plates and the short circuit caused by the contact between the positive and negative electrodes, and improving the safety of battery.

公开(公告)号：US20190229304A1

公开(公告)日：2019-07-25

申请号：US16168826

申请日：2018-10-24

Applicant: Ningde Amperex Technology Limited

Inventor： Jiaxin An ,  Jinhua He ,  Wei Gao ,  Jinhui Chen ,  Kun Wang

IPC: H01M2/02 ,  H01M2/10 ,  H01M2/26 ,  H01M10/04

Abstract: The present application discloses a battery to alleviate the impact on the main body of the battery and for improving the safety performance of the battery. The battery comprises a package case and a circuit board, wherein the package case forms a first surface and a buffer member is arranged between the circuit board and the first surface. In the present application, the buffer member between the circuit board and the first surface may alleviate the force received on the first surface, thereby alleviating the impact on the electrode assembly of the battery, avoiding the damage of the positive and negative electrode plates and the short circuit caused by the contact between the positive and negative electrodes, and improving the safety of battery.

公开(公告)号：US20190089005A1

公开(公告)日：2019-03-21

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 ,  H01M10/0525 ,  H01M2/26 ,  H01M4/70

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：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.