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：US20230187791A1

公开(公告)日：2023-06-15

申请号：US18106511

申请日：2023-02-07

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haihe XIAO ,  Xiaowen ZHANG ,  Qiang LIU ,  Xigen ZHOU ,  Mingxiang LIN ,  Wei ZHONG

IPC: H01M50/533 ,  H01M50/103 ,  H01M50/548 ,  H01M50/567 ,  H01M50/564 ,  H01M50/553 ,  H01M50/588 ,  H01M50/593 ,  H01M50/176 ,  H01M50/184 ,  H01M50/188

CPC classification number: H01M50/533 ,  H01M50/103 ,  H01M50/548 ,  H01M50/567 ,  H01M50/564 ,  H01M50/553 ,  H01M50/588 ,  H01M50/593 ,  H01M50/176 ,  H01M50/184 ,  H01M50/188 ,  H01M2220/20

Abstract: An adapter may include a first adapter and a second adapter disposed discretely. The first adapter may be configured to be connected to one of an electrode post or a tab. The second adapter may be configured to be connected to the other of the electrode post or the tab. The first adapter may substantially extend along a first direction. The second adapter may substantially extend along a second direction. The first direction may intersect the second direction. The first adapter may be connected to the second adapter by a conductive structure.

公开(公告)号：US20240372217A1

公开(公告)日：2024-11-07

申请号：US18773639

申请日：2024-07-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Feng LIU ,  Yulei FAN ,  Yiheng WANG ,  Wei ZHONG ,  Xiaoming GE

IPC: H01M50/451 ,  H01M50/417 ,  H01M50/429 ,  H01M50/434 ,  H01M50/443 ,  H01M50/446 ,  H01M50/457 ,  H01M50/489

Abstract: The present application provides a separator, including first base films sequentially arranged in a stacked manner, a coating containing ceramic particles, graphene oxide and a binder, and a second base film. The separator in the present application has good electrolyte solution wettability, may effectively inhibit the growth of lithium dendrites, and has a small resistance, which may effectively improve the safety, dynamic and cycling performance of a corresponding battery. The present application further provides a secondary battery, battery module, battery pack and electrical apparatus using the separator.

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.

公开(公告)号：US20230187790A1

公开(公告)日：2023-06-15

申请号：US18106504

申请日：2023-02-07

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haihe XIAO ,  Xiaowen ZHANG ,  Qiang LIU ,  Xigen ZHOU ,  Mingxiang LIN ,  Wei ZHONG

IPC: H01M50/533 ,  H01M50/103 ,  H01M50/548 ,  H01M50/15 ,  H01M50/557 ,  H01M50/586 ,  H01M50/538 ,  H01M10/04

CPC classification number: H01M50/533 ,  H01M50/103 ,  H01M50/548 ,  H01M50/15 ,  H01M50/557 ,  H01M50/586 ,  H01M50/538 ,  H01M10/0431 ,  H01M2220/20 ,  H01M2200/20

Abstract: A battery cell may include a housing, a first electrode assembly, and a second electrode assembly. The first electrode assembly may be disposed in the housing. The first electrode assembly may include a first body structure, and a first positive tab and a first negative tab that extend from the first body structure. The second electrode assembly may be disposed in the housing. The second electrode assembly may include a second body structure, and a second positive tab and a second negative tab that extend from the second body portion. The first body structure and the second body structure may be spaced out along a first direction.