公开(公告)号：US20240421324A1

公开(公告)日：2024-12-19

申请号：US18814613

申请日：2024-08-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yujie Chen ,  Xiaoming Ge ,  Yulei Fan

IPC: H01M4/80 ,  H01M4/02 ,  H01M4/04 ,  H01M4/66 ,  H01M4/76

Abstract: This application discloses a negative electrode plate, and a method for preparing same, and related devices. The negative electrode plate includes a current collector. The current collector is made of a foamed metal material. The current collector includes a first region, a second region, and a third region arranged sequentially along a first direction. An interior of the first region is provided with a negative active material. The second region is filled with an insulation material. The third region is provided with no negative active material. The technical solution hereof ensures that no metal particles are deposited in a tab region in a battery that uses foamed metal as a negative electrode, thereby avoiding a short circuit of a battery cell caused by dendrites arising from surplus metal particles deposited in the tab region, and in turn, enhancing safety performance of the battery.

公开(公告)号：US20240421325A1

公开(公告)日：2024-12-19

申请号：US18815890

申请日：2024-08-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yujie Chen ,  Xiaoming Ge ,  Yulei Fan

IPC: H01M4/80 ,  H01M4/02 ,  H01M4/04 ,  H01M4/66 ,  H01M50/107 ,  H01M50/213 ,  H01M50/249

Abstract: A negative electrode plate, an electrode assembly, a battery cell, a battery, an electric device and a manufacturing method and device for the negative electrode plate are provided. The negative electrode plate includes a foam metal layer, a part of the foam metal layer is a filled region, pores of the filled region are filled with a filler, and the filler is configured to have a projection, in the thickness direction of the foam metal layer, at least partially overlapping with the projection of the coated region of the positive electrode plate.