公开(公告)号：US20230268486A1

公开(公告)日：2023-08-24

申请号：US18309446

申请日：2023-04-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei ZHONG ,  Xiaowen ZHANG ,  Pengcheng QIN ,  Buxuan BAI

IPC: H01M4/36 ,  H01M4/58 ,  H01M4/04 ,  H01M10/052

CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/5815 ,  H01M4/5825 ,  H01M10/052 ,  H01M2004/028

Abstract: A positive electrode composite material includes a first type of material and at least one of a second type of material or a third type of material. The first type of material is a lithium iron phosphate material. The second type of material is ABb, where A is at least one selected from Fe, Mn, Co, Ni, Ti, V, Nb, Ta, Zr, Hf, Cr, Mo, W, Re, Pt, Sn, Pb, and Sb, B is any one selected from S and Se, and a value of b is in a range of 1-4. The third type of material is a two-dimensional metal carbide, nitride, or carbonitride MXene material of formula Mn+1Xn or Mn+1XnTx, where M is a transition metal element, X is C element and/or N element, Tx represents a surface functional group including -O, —OH, -Cl, or -F. The third type of material has a layered structure, and n represents a number of layers and n = 1, 2, or 3.

公开(公告)号：US20240154263A1

公开(公告)日：2024-05-09

申请号：US18415693

申请日：2024-01-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yaping HUANG ,  Xiaowen ZHANG ,  Wei ZHONG ,  Pengcheng QIN ,  Mingxiang LIN

IPC: H01M50/533 ,  H01M50/249 ,  H01M50/536 ,  H01M50/538 ,  H01M50/54

CPC classification number: H01M50/533 ,  H01M50/249 ,  H01M50/536 ,  H01M50/538 ,  H01M50/54 ,  H01M2220/20

Abstract: Embodiments of the present disclosure provide an electrode assembly and a traction battery. The electrode assembly includes a plurality of tabs. The plurality of tabs is stacked to each other. At least one of the plurality of tabs includes a tab body and a free end connected to the tab body. The free end is formed into a bent portion through at least a single bending. The bent portion is stacked at a side of the tab body. In some specific embodiments, the tab is designed as a long tab with a long length. When ultrasonic welding is performed, the tab is bent to form the bent portion, and the bent portion is stacked on the tab body for the ultrasonic welding. In this case, since a thickness of a position where the ultrasonic welding is performed is increased, welding stability of the tab can be improved.