公开(公告)号：US20240274977A1

公开(公告)日：2024-08-15

申请号：US18628843

申请日：2024-04-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Feng Liu ,  Yulei Fan ,  Wei Zhong ,  Xiaoming Ge ,  Chuying Ouyang

IPC: H01M50/446 ,  H01M50/403 ,  H01M50/414 ,  H01M50/434 ,  H01M50/443 ,  H01M50/491

CPC classification number: H01M50/446 ,  H01M50/403 ,  H01M50/414 ,  H01M50/434 ,  H01M50/443 ,  H01M50/491

Abstract: The present application relates to a separator, comprising: two layers of substrate and a coating formed between the two layers of substrate, wherein the coating contains inorganic particles, and 30 wt % to 70 wt % of the inorganic particles have a surface coated with a coating layer, and 70 wt % to 30 wt % of the inorganic particles have an uncoated surface, based on the total weight of the inorganic particle. The separator may realize a high mechanical strength, a high wettability, and a good interfacial bonding, and may also effectively inhibit the growth of lithium dendrites, and thus improve the cycling performance of a secondary battery.

公开(公告)号：US20240194996A1

公开(公告)日：2024-06-13

申请号：US18582649

申请日：2024-02-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Manman Wang ,  Yulei Fan ,  Xiaoming Ge

IPC: H01M50/24 ,  H01M50/227 ,  H01M50/249 ,  H01M50/30

CPC classification number: H01M50/24 ,  H01M50/227 ,  H01M50/249 ,  H01M50/394 ,  H01M2220/20

Abstract: Provided are a battery cell, a battery, a power consumption device, and a manufacturing method for a battery cell. The battery cell includes a housing, a protective member, a cell, an elastic member, a first gas-permeable component and a second gas-permeable component. The protective member is mounted on an inner wall of the housing and separates an inner space of the housing into a first chamber and a second chamber, the cell is disposed in the first chamber, the elastic member is disposed in the second chamber and located between the housing and the protective member, the protective member is configured such that the elastic member is compressed with expansion of the cell and stretched with contraction of the cell.

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：US20240283091A1

公开(公告)日：2024-08-22

申请号：US18623037

申请日：2024-04-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei Zhong ,  Xiaoming Ge ,  Chuying Ouyang ,  Yulei Fan ,  Feng Liu

IPC: H01M50/457 ,  H01M50/403 ,  H01M50/414 ,  H01M50/434 ,  H01M50/443 ,  H01M50/451

CPC classification number: H01M50/457 ,  H01M50/403 ,  H01M50/414 ,  H01M50/434 ,  H01M50/443 ,  H01M50/451

Abstract: Provided are a separator comprising a base film and a coating on the base film, wherein the coating comprises a ceramic layer partially embedded in the base film and a boehmite-like layer on the ceramic layer. The separator of the present application may effectively consume lithium dendrites, avoids the lithium dendrites from piercing the separator, and at the same time has a relatively low internal resistance. The present application further provides a method for preparing the separator, and a secondary battery, a battery module using the separator, a battery pack, and a power consuming device.

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.