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公开(公告)号：US20240282963A1
公开(公告)日：2024-08-22
申请号：US18641427
申请日：2024-04-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yao JIANG , Chuying OUYANG , Xinxin ZHANG , Bin DENG , Zhiqiang WANG , Tianci YUAN , Bo XU , Shangdong CHEN
CPC classification number: H01M4/5825 , H01M4/136 , H01M4/366 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode active material has LiMPO4, wherein M includes Mn and a non-Mn element, and the non-Mn element satisfies at least one of the following conditions: the ionic radius of the non-Mn element being denoted as a, and the ionic radius of manganese element being denoted as b, |a−b|/b is not greater than 10%; the valence alternation voltage of the non-Mn element being denoted as U, 2 V
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公开(公告)号：US20240120480A1
公开(公告)日：2024-04-11
申请号：US18527284
申请日：2023-12-02
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yao JIANG , Xinxin ZHANG , Chuying OUYANG , Bin DENG , Tianci YUAN , Zhiqiang WANG , Bo XU , Shangdong CHEN
CPC classification number: H01M4/5825 , H01M4/366 , H01M4/382 , H01M4/485 , H01M4/583 , H01M4/60 , H01M4/8885 , H01M10/052 , H01M2004/028
Abstract: A positive electrode active material includes a core containing Li1+xMn1yAyP1−zRzO4, a first coating layer covering the core and containing a crystalline pyrophosphate MaP2O7 and a crystalline oxide M′bOc, and a second coating layer covering the first coating layer.
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3.发明公开公开(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
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公开(公告)号：US20240018001A1
公开(公告)日：2024-01-18
申请号：US18474567
申请日：2023-09-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Shaojun LIU , Wenwei ZHAN , Xinxin ZHANG , Chuying OUYANG , Qingzheng LI
IPC: C01B25/30 , H01M10/052
CPC classification number: C01B25/30 , H01M10/052 , C01P2006/40 , C01P2006/11 , C01P2004/62 , C01P2004/03
Abstract: A lithium manganese iron phosphate positive electrode active material, preparation method, a positive electrode plate, a secondary battery and an electrical apparatus are disclosed. The method comprises: mixing and grinding an iron source, a solid base and optionally a source of doping element M After grinding, impurities are removed to obtain a nanoscale iron-containing oxide; mixing the obtained nanoscale iron-containing oxide with a solvent, a lithium source, a manganese source, a phosphorus source, optionally a source of doping element N, optionally a source of doping element Q and optionally a source of doping element R in a predetermined ratio and then grinding. After grinding, granulating to obtain a powder; and sintering the powder to obtain the lithium manganese iron phosphate positive electrode active material. A lithium manganese iron phosphate positive electrode active material having both good electrochemical performance and high tap density can be obtained.
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公开(公告)号：US20240282969A1
公开(公告)日：2024-08-22
申请号：US18641410
申请日：2024-04-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yao JIANG , Chuying OUYANG , Xinxin ZHANG , Bin DENG , Zhiqiang WANG , Tianci YUAN , Bo XU , Shangdong CHEN
IPC: H01M4/62 , H01M4/02 , H01M4/1391 , H01M4/525 , H01M10/0525
CPC classification number: H01M4/623 , H01M4/1391 , H01M4/525 , H01M4/625 , H01M10/0525 , H01M2004/028
Abstract: A positive electrode active material has an inner core and a shell coating the inner core, wherein the inner core comprises at least one of a ternary material, dLi2MnO3·(1−d)LiMO2 and LiMPO4, where 0
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Patent Agency Ranking
公开(公告)号：US20230361296A1
公开(公告)日：2023-11-09
申请号：US18351925
申请日：2023-07-13
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yao JIANG , Chuying OUYANG , Xinxin ZHANG , Bin DENG , Zhiqiang WANG , Tianci YUAN , Bo XU , Shangdong CHEN
CPC classification number: H01M4/5825 , C01B25/45 , H01M4/366 , H01M4/583 , C01P2006/40 , C01P2002/52 , C01P2004/84 , C01P2002/72 , C01P2002/85 , H01M2004/028
Abstract: A positive electrode active material includes LiaAxMn1-yByP1-zCzO4-nDn. A includes one or more selected from group IA, group IIA, group IIIA, group IIB, group VB, and group VIB. B includes one or more selected from group IA, group IIA, group IIIA, group IVA, group VA, group IIB, group IVB, group VB, group VIB, and group VIII. C includes one or more selected from group IIIA, group IVA, group VA and group VIA. D includes one or more selected from group VIA and group VIIA. a is selected from 0.85 to 1.15. x is selected from 0 to 0.1. y is selected from 0.001 to 0.999. z is selected from 0 to 0.5. n is selected from 0 to 0.5.
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公开(公告)号：US20230049880A1
公开(公告)日：2023-02-16
申请号：US17967844
申请日：2022-10-17
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jiarui TIAN , Yongsheng GUO , Cong CHENG , Yuanyuan LAN , Shuojian SU , Xinxin ZHANG , Na LIU , Chuying OUYANG
IPC: H01M50/449 , H01M50/411 , H01M50/431
Abstract: The present application provides an organic-inorganic hybrid complex which can be used in a coating of a separator for a secondary battery, wherein the organic-inorganic hybrid complex is formed from basic units represented by formula (I) being periodically assembled in at least one spatial direction: [Lx-i□i][MaCb].Az (I), wherein a defect percentage expressed in i/x*100% is 1% to 30%. The present application further provides a coating composition comprising the organic-inorganic hybrid complex, a coating formed from the coating composition, a separator comprising the coating for a secondary battery, a secondary battery comprising the separator, a battery module, a battery pack and a device. By applying the organic-inorganic hybrid complex of the present application in a coating, the electrolyte infiltration of a separator for a secondary battery is improved while increasing the electrolyte retention rate, thereby improving the rate capability and cycling life of the secondary battery.
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8.发明公开公开(公告)号：US20240014394A1
公开(公告)日：2024-01-11
申请号：US18469449
申请日：2023-09-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaoxia CHEN , Xinxin ZHANG , Chuying OUYANG , Yongsheng GUO , Jiarui TIAN , Yu MA , Ben LIU , Xiaoji ZHENG
CPC classification number: H01M4/583 , C01B32/05 , C01P2002/82 , C01P2002/72 , C01P2004/61 , C01P2006/12 , C01P2006/11 , C01P2006/40 , C01P2004/03 , H01M2004/027
Abstract: A hard carbon. A total quantity of adsorbed nitrogen under a relative pressure P/P0 of nitrogen between 10−8 and 0.035 is V1 cm3 (STP)/g and a total quantity of adsorbed nitrogen under a relative pressure P/Po of nitrogen between 0.035 and 1 is V2 cm3 (STP)/g in a nitrogen adsorption isotherm determined at a temperature of 77 K for the hard carbon. The hard carbon satisfies: V2/V1≤0.20 and 20≤V1≤150, where P represents an actual pressure of nitrogen, and P0 represents a saturated vapor pressure of nitrogen at a temperature of 77 K.
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公开(公告)号：US20220399536A1
公开(公告)日：2022-12-15
申请号：US17887883
申请日：2022-08-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xinxin ZHANG , Yongsheng GUO , Chuying OUYANG
IPC: H01M4/136 , H01M4/1397 , H01M10/054 , C01C3/12
Abstract: A prussian blue analog having a core-shell structure, which has a core and a cladding layer that dads the core, wherein
the chemical formula of the core is the following Formula 1,
NaxP[R(CN)6]δ.zH2O and the chemical formula of the cladding layer is the following Formula 2, AyL[M(CN)6]α.wH2O is described. The prussian blue analog has good storage stability, and thus can greatly reduce the manufacturing cost at the subsequent battery cell level. A method for preparing the prussian blue analog having a core-shell structure, as well as a sodium-ion secondary battery, a battery module, a battery pack and a powered device comprising the same are described.-
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.
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