公开(公告)号：US20230352680A1

公开(公告)日：2023-11-02

申请号：US18332727

申请日：2023-06-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhenhua Li ,  Xiayi Wu ,  Jiawei Xu ,  Ziyu Yang ,  Hanli Fu ,  Shuoyan Xu ,  Xing Li ,  Shaojun Niu

IPC: H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/04

CPC classification number: H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M4/0404 ,  H01M2004/028

Abstract: A positive electrode composite material for a lithium ion secondary battery, and a positive electrode using the positive electrode composite material for a lithium ion secondary battery, a lithium ion secondary battery and a power consuming device are provided. The positive electrode composite material for a lithium ion secondary battery comprises a positive electrode active material and an alkali metal oxide as shown by formula AmGOn, wherein A represents at least one element selected from Na and K and optionally Li, G represents at least one element selected from Fe, Ni, Co, Mn, Ru, Ir, Sn, Cr, Nb, Mo, V and Ti, m is 1-6, and n is 1-4.

公开(公告)号：US20240194873A1

公开(公告)日：2024-06-13

申请号：US18426344

申请日：2024-01-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhenhua Li ,  Jiawei Xu ,  Hanli Fu ,  Xiayi Wu ,  Xing Li ,  Shaojun Niu ,  Haizu Jin

IPC: H01M4/58 ,  H01M4/02 ,  H01M4/04 ,  H01M10/0568

CPC classification number: H01M4/5825 ,  H01M4/0416 ,  H01M4/0471 ,  H01M10/0568 ,  H01M2004/028 ,  H01M2220/20

Abstract: The present application relates to a secondary battery, comprising (1) a positive electrode plate; and (2) an electrolyte solution; wherein a positive electrode active material is an active material having a chemical formula of AxB1-xMeO2 or AxB1-xMPO4 with dications A and B, where Me, M, A, B, and x are as defined in the specification; and the electrolyte solution comprises an electrolyte salt of the dications A and B, where A and B are as defined in the positive electrode active material; as well as a method for preparing a corresponding positive electrode active material, a corresponding battery module, a battery pack, and an electrical apparatus. The secondary battery of the present application comprises a positive electrode active material comprising the dications A and B and an electrolyte solution of a salt of the same dications.