公开(公告)号：US20160006071A1

公开(公告)日：2016-01-07

申请号：US14728586

申请日：2015-06-02

Applicant: Ningde Amperex Technology Limited

Inventor： Cong Li ,  Ping He ,  Yeli Lin ,  Zhong Shi ,  Huali Zhou ,  Hongxin Fang ,  Wenqiang Cheng

IPC: H01M10/04 ,  H01M10/0525

CPC classification number: H01M10/045 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present disclosure provides a preparation method of non-rectangular laminated cell, which comprises steps of: preparing k kinds of laminated cell units, wherein there are at least two kinds of laminated cell units adopting different electrode plate assemblies which are different in shape and/or size; laminating the k kinds of laminated cell units. The preparation of the i-th (i=1, 2 . . . k) kind of laminated cell unit comprises substeps of: providing a laminated pack: the laminated pack comprises ni laminated groups, the each laminated group comprises mi electrode plate assemblies which are the same in shape and size, ni≧2, mi≧2, the electrode plate assemblies of all the laminated groups of the laminated pack and spacers between the adjacent laminated groups are orderly positioned in a Z-shaped separator in a laminating direction; the separator is broken at an end of the each spacer positioned in the separator.

Abstract translation: 本发明提供非矩形层压电池的制备方法，其包括以下步骤：制备k种层压电池单元，其中存在至少两种采用不同电极板组件的层压电池单元，其形状不同和/ 或尺寸; 层压k种层压电池单元。 第i（i = 1,2，...）种层压电池单元的制备包括以下子步骤：提供层压包装：层压包装包括ni层压组，每个层叠组包括mi电极板组件 形状和尺寸相同，ni≥2，mi≥2，叠层组件的所有叠层组的电极板组件和相邻层压组之间的间隔件在层叠方向上有序地定位在Z形隔板中; 分离器在位于分离器中的每个间隔件的端部处断裂。

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：US11189884B2

公开(公告)日：2021-11-30

申请号：US16546324

申请日：2019-08-21

Applicant: Ningde Amperex Technology Limited

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

IPC: H01M2/16 ,  H01M50/449 ,  H01M50/463

Abstract: The present application discloses a cell and a battery, the cell comprising a first electrode, a second electrode, and a first separator and a second separator that are disposed between the first electrode and second electrode, wherein the first separator includes a first meshing structure beyond the first electrode and the second electrode, the second separator includes a second meshing structure beyond the first electrode and the second electrode, and the first meshing structure is meshed with the second meshing structure along a thickness direction of the cell. The cell provided by the present application can improve the dropping performance of the cell and enhance the safe use of cell.

公开(公告)号：US20190044108A1

公开(公告)日：2019-02-07

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: H01M2/08 ,  H01M10/058 ,  H01M2/02

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：US20190013505A1

公开(公告)日：2019-01-10

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: H01M2/26 ,  H01M2/14 ,  H01M4/36 ,  H01M4/04 ,  H01M10/0525

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.

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.