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：US20180190963A1

公开(公告)日：2018-07-05

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: H01M2/26 ,  H01M10/04 ,  H01M10/0585

CPC classification number: H01M2/266 ,  H01M2/22 ,  H01M2/263 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2220/20

Abstract: The present invention provides a secondary battery cell and winding formation system thereof. The secondary battery cell comprises 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 comprises 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. The secondary battery cell manufactured by the secondary battery cell winding formation system of the present invention can effectively prevent the secondary battery cell from generating internal short circuit, thus improving the safety performance of the secondary battery cell while ensuring a high energy density.

公开(公告)号：US20170214007A1

公开(公告)日：2017-07-27

申请号：US15410099

申请日：2017-01-19

Applicant: Ningde Amperex Technology Limited

Inventor： Jibin Geng ,  Hongxin Fang ,  Dong Duan ,  Peipei Guo

IPC: H01M2/02 ,  H01M2/08 ,  H01M10/0525

CPC classification number: H01M2/0292 ,  H01M2/021 ,  H01M2/0212 ,  H01M2/024 ,  H01M2/0277 ,  H01M2/0285 ,  H01M2/0287 ,  H01M2/08 ,  H01M10/0525 ,  H01M2002/0297

Abstract: The present application relates to the field of Li-ion batteries and, specifically, relates to a packaging housing for a Li-ion battery, a method for preparing the packaging housing for a Li-ion battery. A bare cell of the Li-ion battery is packaged by the packaging housing, the packaging housing comprises, successively from inside to outside, a sealing housing layer, a metal coating layer and a plastic coating layer; after the sealing housing layer packages the bare cell and then is sealed, the metal coating layer and the plastic coating layer are successively provided on an external surface of the sealing housing layer. Since each layer of the materials of the packaging housing is processed onto the external surface of the product during preparing or packaging process, the thickness and strength of folding edges and folding corners thereof are kept unchanged, packaging defects caused by the impact molding process are avoided.