公开(公告)号：US20230369562A1

公开(公告)日：2023-11-16

申请号：US18359082

申请日：2023-07-26

Applicant: Contemporary Amperex Technology CO., Limited

Inventor： Lili WU ,  Miaomiao Dong ,  Xin Sun ,  Xingbu Chen ,  Xuan Li ,  Liang Yun ,  Peidong Song

IPC: H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/36 ,  H01M4/04

CPC classification number: H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/366 ,  H01M4/0404 ,  H01M2004/021

Abstract: An electrode plate and a method for preparing the electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus are described. The electrode plate includes a current collector and an active substance layer provided on at least one surface of the current collector. The active substance layer includes an active main material and a porous material. The active substance layer has pores, where the pore runs through or not through the active substance layer. Thickness of the active substance layer is x, and distance between two end openings of the pore in a direction perpendicular to the active substance layer is y, where x and y satisfy the following condition: 0.1≤x≤y≤x.

公开(公告)号：US20240282937A1

公开(公告)日：2024-08-22

申请号：US18648369

申请日：2024-04-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Liang Yun ,  Xin Sun ,  Lili Wu ,  Peidong Song ,  Miaomiao Dong

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/587 ,  H01M4/60

CPC classification number: H01M4/366 ,  H01M4/587 ,  H01M4/606 ,  H01M2004/021 ,  H01M2004/027

Abstract: Provided is a pore-forming agent for secondary battery and a preparation method thereof, a negative electrode plate, an electrode assembly, and a secondary battery. The pore-forming agent for secondary battery includes a one-dimensional conductive material and stable-state lithium metal particles, where the stable-state lithium metal particles are loaded on the one-dimensional conductive material.

公开(公告)号：US20240186531A1

公开(公告)日：2024-06-06

申请号：US18407439

申请日：2024-01-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lili Wu ,  Xuan Li ,  Xin Sun ,  Peidong Song ,  Liang Yun ,  Xingbu Chen ,  Miaomiao Dong

IPC: H01M4/80 ,  H01M4/02 ,  H01M4/133 ,  H01M4/88

CPC classification number: H01M4/80 ,  H01M4/133 ,  H01M4/8828 ,  H01M2004/021 ,  H01M2004/028

Abstract: Provided are a positive electrode plate for secondary battery, a manufacturing method thereof, and a secondary battery, battery module, battery pack, and electric apparatus using such positive electrode plate for secondary battery. The positive electrode plate for secondary battery includes a current collector and a positive electrode active substance layer and further includes a porous layer containing a porous carbon material between the current collector and the positive electrode active substance layer.