公开(公告)号：US20240105923A1

公开(公告)日：2024-03-28

申请号：US18529592

申请日：2023-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jiarui TIAN ,  Xinxin ZHANG ,  Chuying OUYANG ,  Yongsheng GUO ,  Yuejuan WAN ,  Wenguang LIN ,  Jiadian LAN ,  Jixiang WANG

IPC: H01M4/38 ,  H01M4/36 ,  H01M4/58 ,  H01M10/052

CPC classification number: H01M4/381 ,  H01M4/366 ,  H01M4/58 ,  H01M10/052 ,  H01M2004/028

Abstract: A positive electrode active material is granular and comprises a compound represented by formula 1: (NaxAy)a□bM1[M2(CN)6]δ, wherein A is selected from at least one of alkali metal elements and has an ionic radius greater than that of sodium, M1 and M2 are each independently selected from at least one of transition metal elements, 0

公开(公告)号：US20220123303A1

公开(公告)日：2022-04-21

申请号：US17565469

申请日：2021-12-30

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Qian LIU ,  Wenguang LIN ,  Yongsheng GUO ,  Chengdu LIANG

IPC: H01M4/58 ,  H01M10/054 ,  H01M4/62 ,  H01M4/04 ,  H01M4/02

Abstract: The present application relates to a positive electrode material for a sodium-ion battery and a preparation method thereof, and a sodium-ion battery, a battery module, a battery pack and an apparatus manufactured from the active material, the positive electrode material for the sodium-ion battery comprises a composite of sodium halophosphate with carbon having the following molecular formula: Na2M1hM2k(PO4)X/C, in which M1 and M2 are transition metal ions each independently selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Sr, Y, Nb, Mo, Sn, Ba and W; h is from 0 to 1, k is from 0 to 1, and h+k=1; X is halogen ion selected from F, Cl and Br, wherein the positive electrode material has a powder resistivity in the range of from 10 Ω·cm to 5,000 Ω·cm under a pressure of 12 MPa.

公开(公告)号：US20240083759A1

公开(公告)日：2024-03-14

申请号：US18388884

申请日：2023-11-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jiarui TIAN ,  Xinxin ZHANG ,  Chuying OUYANG ,  Yongsheng GUO ,  Jiadian LAN ,  Jixiang WANG ,  Wenguang LIN ,  Yuejuan WAN

IPC: C01C3/11 ,  H01M10/054

CPC classification number: C01C3/11 ,  H01M10/054 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/82

Abstract: The present application provides a positive electrode active material which may be in a particulate form and comprise a compound represented by Formula 1:


NaxAyM1[M2(CN)6]δ·zH2O  Formula 1



wherein, A is selected from at least one of an alkali metal element and an alkaline earth metal element, and the ionic radius of A is greater than the ionic radius of sodium; M1 and M2 are each independently selected from at least one of a transition metal element, 0

公开(公告)号：US20220115653A1

公开(公告)日：2022-04-14

申请号：US17558646

申请日：2021-12-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Liting HUANG ,  Yongsheng GUO ,  Chengdu LIANG ,  Jiadian LAN ,  Wenguang LIN

IPC: H01M4/485 ,  H01M4/587 ,  H01M10/054 ,  H01M4/505 ,  H01M4/525

Abstract: This application relates to a sodium-ion battery, a positive electrode plate for a sodium-ion battery, a battery module, a battery pack, and a device. The sodium-ion battery according to this application includes a positive electrode plate, a negative electrode plate, a separator, and an electrolytic solution. The positive electrode plate includes a positive active material. A molecular formula of the positive active material satisfies NaaLibM0.7Fe0.3−bO2±δ, M is a transition metal ion, 0.67

公开(公告)号：US20240266522A1

公开(公告)日：2024-08-08

申请号：US18592505

申请日：2024-02-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shunli HE ,  Zibin LIANG ,  Yuhao WANG ,  Qiang LI ,  Wenguang LIN ,  Xinxin ZHANG ,  Jinhua HE

IPC: H01M4/485 ,  H01M4/02 ,  H01M4/36 ,  H01M10/054

CPC classification number: H01M4/485 ,  H01M4/366 ,  H01M2004/028 ,  H01M10/054

Abstract: An electrode active material includes a layered metal oxide. The layered metal oxide has the following general formula: NaxM1aM2bMn1-a-bO2-zFz; where 0.55≤x≤0.85, a≥0, b≥0, 0.1≤a+b≤0.33, and 0.06≤z/(1−a−b)≤0.13; M1 is selected from one or more of alkali metal elements other than Na and alkaline earth metal elements; and M2 is selected from one or more of transition metal elements other than Mn.

公开(公告)号：US20230227321A1

公开(公告)日：2023-07-20

申请号：US18124021

申请日：2023-03-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jiarui TIAN ,  Yongsheng GUO ,  Chuying OUYANG ,  Xinxin ZHANG ,  Liting HUANG ,  Shuojian SU ,  Wenguang LIN ,  Jinyu ZHANG

IPC: C01C3/11

CPC classification number: C01C3/11 ,  C01P2006/40 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2006/11

Abstract: Embodiments of the present application provide a Prussian blue-like transition metal cyanide, a preparation method therefor, and related positive electrode plate, secondary battery, battery pack and device. The Prussian blue-like transition metal cyanide may comprise secondary particles which comprise a plurality of primary particles, wherein the primary particles may have a spherical or spherical-like morphology.