公开(公告)号：US20230317932A1

公开(公告)日：2023-10-05

申请号：US18331260

申请日：2023-06-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyu XIA ,  Yunjian MA ,  Mingfeng LIN ,  Bing CHEN ,  Yuping HUANG ,  Jianping ZHANG ,  Yanhui LI ,  Yumeng LIU

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/134

CPC classification number: H01M4/366 ,  H01M4/386 ,  H01M4/134

Abstract: This application provides a yolk core-shell structured composite material, a preparation method of the material, and a secondary battery containing the material. The yolk core-shell structured composite material includes a core and a shell. A cavity exists between the core and the shell. The core includes a phosphorus-doped silicon material, and the shell includes a nitrogen-doped carbon material. This application can improve a capacity and a capacity retention rate of the battery.

公开(公告)号：US20230246155A1

公开(公告)日：2023-08-03

申请号：US18119832

申请日：2023-03-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuping HUANG ,  Yunjian MA ,  Mingfeng LIN ,  Honggang YU ,  Youlei LAI ,  Yanhui LI ,  Yu DAI ,  Jianping ZHANG

IPC: H01M4/04 ,  H01M4/62 ,  H01M50/204

CPC classification number: H01M4/0404 ,  H01M4/625 ,  H01M4/622 ,  H01M50/204 ,  H01M2004/027

Abstract: The present application provides a negative electrode plate, a secondary battery, a battery module, a battery pack, and a power consuming device. The negative electrode plate may include a main body region and at least one low-thermal-conductivity edge region; and the low-thermal-conductivity edge region and the main body region respectively may have thermal conductivities of λ2 and λ1, where λ2