公开(公告)号：US20230402580A1

公开(公告)日：2023-12-14

申请号：US18449555

申请日：2023-08-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenhui LIN ,  Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Haizu JIN

IPC: H01M4/13 ,  H01M10/0587 ,  H01M10/0525

CPC classification number: H01M4/13 ,  H01M10/0587 ,  H01M10/0525 ,  H01M2220/20

Abstract: An electrode assembly includes a current collector. The current collector includes a first coating region and a second coating region. The first coating region is coated with an active substance material and the second coating region is coated with a lithiation material. In an extension direction of the current collector, a gap is disposed between the first coating region and the second coating region.

公开(公告)号：US20230378546A1

公开(公告)日：2023-11-23

申请号：US18366342

申请日：2023-08-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Yonghuang YE ,  Qian LIU ,  Jianfu HE ,  Fajun HUANG ,  Chenhui LIN

IPC: H01M10/0585 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/583

CPC classification number: H01M10/0585 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/623 ,  H01M4/583 ,  H01M2004/028

Abstract: A secondary battery includes a positive electrode plate. that includes a positive current collector, a first positive active material layer distributed on one side of the positive current collector, and a second positive active material layer distributed on an other side of the positive current collector and a negative electrode plate that includes a negative current collector, a first negative active material layer distributed on one side of the negative current collector and opposite to the second positive active material layer, and a second negative active material layer distributed on an other side of the negative current collector. A resistance of the first positive active material layer is R1, a resistance of the second positive active material layer is R2, a resistance of the first negative active material layer is R3, a resistance of the second negative active material layer is R4.