公开(公告)号：US20240154270A1

公开(公告)日：2024-05-09

申请号：US18406595

申请日：2024-01-08

Applicant: Ningde Amperex Technology Limited

Inventor： Zuchao LIU

IPC: H01M50/538 ,  H01M4/36 ,  H01M10/0525 ,  H01M50/586

CPC classification number: H01M50/538 ,  H01M4/366 ,  H01M10/0525 ,  H01M50/586

Abstract: An electrochemical apparatus and an electronic apparatus are disclosed. The electrochemical apparatus includes an electrode plate and a tab, where the electrode plate includes a current collector, a first active material layer, and a first insulation layer. The current collector includes a first region, a second region, and a first portion of a third region, where the first region is provided with the first active material layer, and the second region is provided with the first insulation layer. Along a thickness direction of the current collector, an orthographic projection of the second region at least partially surrounds an orthographic projection of the first portion of the third region. In this way, the electrode plate has a small exposed conductive region. This can reduce the safety risk such as a short circuit risk caused during a needle penetration operation on the electrochemical apparatus.

公开(公告)号：US20230031906A1

公开(公告)日：2023-02-02

申请号：US17956690

申请日：2022-09-29

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Zuchao LIU

IPC: H01M10/0587 ,  H01M10/052 ,  H01M4/36 ,  H01M4/62

Abstract: A battery cell, including an electrode assembly. The electrode assembly is formed by stacking in sequence or winding a first electrode plate, a separator, and a second electrode plate. The first electrode plate includes a first current collector and a first active material layer disposed on two sides of the first current collector. The first electrode plate further includes a conductive layer. The first current collector includes a first surface and a second surface facing away from the first surface. The conductive layer completely covers the first surface and/or the second surface. The first active material layer is disposed on a surface of the conductive layer. This application further provides a battery containing the battery cell and an electronic apparatus with such battery.

公开(公告)号：US20190245192A1

公开(公告)日：2019-08-08

申请号：US16267028

申请日：2019-02-04

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Chuantao SONG ,  Zuchao LIU ,  Haiyang NAN ,  Zhiwen XIAO ,  Xinru SU

IPC: H01M2/34 ,  H01H71/14 ,  H01H71/08 ,  H01M2/26

CPC classification number: H01M2/348 ,  H01H71/08 ,  H01H71/14 ,  H01M2/26 ,  H01M2200/10

Abstract: The present disclosure relates to a technical field of cells, and discloses a protection device and a battery. The protection device includes: a first connecting member; a second connecting member; a first element; and an elastic sheet. When the elastic sheet has a temperature lower than a first temperature, the elastic sheet is connected to at least one of the first connecting member and the second connecting member; when the temperature of the elastic sheet is equal to the first temperature, the elastic sheet is deformed to allow the first connecting member, the second connecting member, the elastic sheet and the first element to form a series circuit. When the protection device is not triggered, the temperature of the elastic sheet is lower than the first temperature, and the elastic sheet is connected to at least one of the first connecting member and the second connecting member.