公开(公告)号：US20230327248A1

公开(公告)日：2023-10-12

申请号：US18193698

申请日：2023-03-31

申请人： Ningde Amperex Technology Limited

发明人： Xiaofeng Li ,  Peipei Guo ,  Sen Lin

IPC分类号： H01M50/188 ,  H01M50/105 ,  H01M50/178

CPC分类号： H01M50/188 ,  H01M50/105 ,  H01M50/178

摘要： An electrochemical device includes an electrode assembly, a packaging bag accommodating the electrode assembly, and electrode terminals connected to the electrode assembly. The packaging bag includes a first seal edge, a third seal edge, a first sidewall connected to the first seal edge, a second sidewall connected to the third seal edge, and a third sidewall. The first sidewall includes a first section connected to the second sidewall; and an arc-shaped second section connected to the third sidewall and the first section. The first seal edge includes a first hem connected to the first section and a second hem connected to the first hem. The first hem is disposed along the thickness direction of the electrode assembly. The second hem includes a first part and a second part. The second part is connected to the second section and the first part and abuts against the second section.

公开(公告)号：US11211652B2

公开(公告)日：2021-12-28

申请号：US16258689

申请日：2019-01-28

申请人： Ningde Amperex Technology Limited

发明人： Sen Lin ,  Peipei Guo ,  Ping He ,  Qingshan Wen

IPC分类号： H01M10/637 ,  H01M10/44 ,  H01M10/42 ,  H01M50/581

摘要： Embodiments of the present application provide a protective device for cell including a first conductive component and a second conductive component that are disposed oppositely and spaced apart. A switching unit disposed between the first conductive component and the second conductive component is configured to disconnect the first conductive component from the second conductive component based on a predetermined temperature of the cell. The purpose of the present application is to provide a protection device for cell to timely cut off the internal circuit of the cell when the internal temperature of the cell is high.

公开(公告)号：US11101518B2

公开(公告)日：2021-08-24

申请号：US16238514

申请日：2019-01-02

申请人： Ningde Amperex Technology Limited

发明人： Sen Lin ,  Hua Wu ,  Yajie Zhang ,  Peipei Guo

IPC分类号： H01M50/00 ,  H01M50/20 ,  H01M50/124 ,  H01M50/531

摘要： In one aspect, the present application provides a multilayer sheet including a metal layer, a bonding layer arranged on a first surface of the metal layer, and a buffer layer arranged on a second surface of the metal layer, wherein the buffer layer is provided with a hole. The present application further provides a battery including an electrode assembly, and a packaging bag prepared from the multilayer sheet. Wherein the packaging bag packages the electrode assembly. It is an object of the present application to provide a multilayer sheet and battery capable of reducing vibration damage.

公开(公告)号：US20200083576A1

公开(公告)日：2020-03-12

申请号：US16258689

申请日：2019-01-28

申请人： Ningde Amperex Technology Limited

发明人： Sen Lin ,  Peipei Guo ,  Ping He ,  Qingshan Wen

IPC分类号： H01M10/637 ,  H01M10/44

摘要： Embodiments of the present application provide a protective device for cell including a first conductive component and a second conductive component that are disposed oppositely and spaced apart. A switching unit disposed between the first conductive component and the second conductive component is configured to disconnect the first conductive component from the second conductive component based on a predetermined temperature of the cell. The purpose of the present application is to provide a protection device for cell to timely cut off the internal circuit of the cell when the internal temperature of the cell is high.