公开(公告)号：US20210375514A1

公开(公告)日：2021-12-02

申请号：US17331531

申请日：2021-05-26

Applicant: GRIREM HI-TECH CO., LTD. ,  GRIREM ADVANCED MATERIALS CO.,LTD. ,  Grirem (Rongcheng) Co., Ltd.

Inventor： Yang LUO ,  Yuanfei YANG ,  Zilong WANG ,  Dunbo YU ,  Hongbin ZHANG ,  Jiajun XIE ,  Zhou HU ,  Zhongkai WANG

IPC: H01F1/057 ,  H01F41/02 ,  B22F7/06 ,  C22C38/00

Abstract: An anisotropic bonded magnet and a preparation method thereof are provided. By stacking magnets having different magnetic properties and/or densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in pressing densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method solves the problem of “low in the middle and high at two ends” caused by the phenomenon of non-uniform magnetic field orientation and density along a height direction during orientation and densification.

公开(公告)号：US20240390878A1

公开(公告)日：2024-11-28

申请号：US18796186

申请日：2024-08-06

Applicant: GRIREM HI-TECH CO., LTD. ,  GRIREM ADVANCED MATERIALS CO., LTD. ,  Rare Earth Functional Materials (Xiong 'an) Innovation Center Co., Ltd.

Inventor： Yongqi ZHANG ,  Xiaowei HUANG ,  Weixin ZHAO ,  Xinlin PENG ,  Zheng ZHAO ,  Yongke HOU ,  Zhizhe ZHAI ,  Qiang ZHONG

IPC: B01J23/00 ,  B01D53/94 ,  B01J23/34 ,  B01J23/889 ,  B01J27/043 ,  B01J27/135 ,  B01J27/187 ,  B01J27/24 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08

Abstract: Disclosed are a grain boundary and surface-doped rare earth manganese-zirconium composite compound as well as a preparation method and use thereof. A rare earth manganese oxide with a special structure is formed at grain boundary and surface of a rare earth zirconium-based oxide by a grain boundary doping method so as to increase oxygen defects at the grain boundary and the surface, thereby increasing the amount of active oxygen, improving the catalytic activity of the rare earth manganese-zirconium composite compound, inhibiting high-temperature sintering of the rare earth manganese-zirconium composite compound, and improving the NO catalytic oxidation capability. When the rare earth manganese-zirconium composite compound is applied to a catalyst, the consumption of noble metal can be greatly reduced.

公开(公告)号：US20240363896A1

公开(公告)日：2024-10-31

申请号：US18770300

申请日：2024-07-11

Applicant: GRIREM HI-TECH CO., LTD. ,  GRIREM ADVANCED MATERIALS CO., LTD. ,  Rare Earth Functional Materials (Xiong 'an) Innovation Center Co., Ltd.

Inventor： Xiaowei HUANG ,  Xiaobao ZHANG ,  Juanyu YANG ,  Ning WANG ,  Zongyu FENG ,  Yang XU ,  Qiang ZHONG ,  Yiyang XIAO

IPC: H01M10/0562 ,  C01B25/45 ,  C01G25/00 ,  C01G33/00 ,  C01G35/00 ,  C01G45/12 ,  C01G49/00 ,  C01G51/00 ,  C01G53/00

CPC classification number: H01M10/0562 ,  C01B25/45 ,  C01G25/006 ,  C01G33/006 ,  C01G35/006 ,  C01G45/1292 ,  C01G49/0054 ,  C01G51/70 ,  C01G53/70 ,  C01P2002/54 ,  C01P2006/40 ,  H01M2300/0071

Abstract: Disclosed are a grain boundary- and surface-doped lithium-lanthanum-zirconium composite oxide solid electrolyte, a preparation method therefor, and an application thereof. Part of doping elements are step-doped at the grain boundary and the surface of the lithium-lanthanum-zirconium composite oxide solid electrolyte to improve the distribution state of the doping elements at the grain boundaries, reduce the number of grain boundaries, lower the grain boundary resistance of the lithium-lanthanum-zirconium composite oxide, thereby obtaining high ionic conductivity. The doping method has the advantages of being simple and convenient in process, low in cost and high in universality, can meet the requirements of different solid electrolytes on doping elements, and is suitable for large-scale application. The solid electrolyte obtained from the technical solution of the present application can be used in fields such as all-solid-state lithium or lithium ion batteries, semi-solid lithium ion batteries, lithium air batteries and the like.

公开(公告)号：US20240360330A1

公开(公告)日：2024-10-31

申请号：US18624935

申请日：2024-04-02

Applicant: GRIREM ADVANCED MATERIALS CO., LTD. ,  GRIREM HI-TECH CO., LTD.

Inventor： Xiaojun SUN ,  Yang LUO ,  Zilong WANG ,  Dunbo YU ,  Jiyuan GUO ,  Jiping DUAN ,  Yan WANG ,  Yuanfei YANG ,  Hongbin ZHANG ,  Kaiwen WU

IPC: C09D11/037 ,  C09D11/033 ,  C09D11/104 ,  C09D11/107 ,  C09D11/14

CPC classification number: C09D11/037 ,  C09D11/033 ,  C09D11/104 ,  C09D11/107 ,  C09D11/14

Abstract: Disclosed are an organic slurry with a gradient volatilization rate and a preparation method. The organic slurry includes a rare earth powder, an organic solvent, a resin, a dispersant, and/or an anti-settling agent, and/or a synergist, weight percentages of which are as follows: rare earth powder 50%-90%; organic solvent 8%-50%; resin 0.4%-6%; dispersant 0%-5%; anti-settling agent 0%-3%; and synergist 0%-3%. The preparation method includes: weighing the rare earth powder, organic solvent, resin, dispersant, and/or anti-settling agent, and/or synergist by weight percentage; sequentially adding the weighed ingredients into a mixer, stirring at a constant temperature, and then cooling to room temperature to obtain an organic carrier; adding the organic carrier and the weighed rare earth powder into a vacuum high-speed disperser to obtain a crude organic slurry; and transferring the crude organic slurry to a gap adjustable three-roll grinder for grinding to obtain a fine organic slurry.

公开(公告)号：US12109551B2

公开(公告)日：2024-10-08

申请号：US17422691

申请日：2020-09-04

Applicant: GRIREM ADVANCED MATERIALS CO., LTD. ,  Rare Earth Functional Materials (Xiong 'an) Innovation Center Co., Ltd. ,  GRIREM HI-TECH CO., LTD.

Inventor： Xiaowei Huang ,  Yongqi Zhang ,  Hongwei Li ,  Zhizhe Zhai ,  Qiang Zhong ,  He Zhang ,  Meisheng Cui ,  Yongke Hou ,  Hao Wang ,  Zongyu Feng

IPC: B01J21/06 ,  B01J6/00 ,  B01J23/02 ,  B01J23/10 ,  B01J35/00 ,  B01J35/30 ,  B01J35/39 ,  B01J37/04 ,  F01N3/10

CPC classification number: B01J23/10 ,  B01J6/001 ,  B01J21/066 ,  B01J23/02 ,  B01J35/19 ,  B01J35/397 ,  B01J35/398 ,  B01J37/04 ,  F01N3/10 ,  F01N2570/14

Abstract: The present invention discloses a rare-earth-manganese/cerium-zirconium-based composite compound, a method for preparing the same, and a use thereof. The composite compound is of a core-shell structure with a general formula expressed as: A REcBaOb-(1-A)CexZr(1-x-y)MyO2-z, wherein 0.1≤A≤0.3, preferably 0.1≤A≤0.2; a shell layer has a main component of rare-earth manganese oxide with a general formula of REcMnaOb, wherein RE is a rare-earth element or a combination of more than one rare-earth elements, and B is Mn or a combination of Mn and a transition metal element, 1≤a≤8, 2≤b≤18, and 0.25≤c≤4; and a core has a main component of cerium-zirconium composite oxide with a general formula of CexZr(1-x-y)MyO2-z, wherein M is one or more non-cerium rare-earth elements, 0.1≤x≤0.9, 0≤y≤0.3, and 0.01≤z≤0.3. The composite compound enhances an oxygen storage capacity of a cerium-zirconium material through an interface effect, thereby increasing a conversion rate of a nitrogen oxide.

公开(公告)号：US11981983B2

公开(公告)日：2024-05-14

申请号：US17090710

申请日：2020-11-05

Applicant: GRIREM ADVANCED MATERIALS CO., LTD. ,  GRIREM HI-TECH CO., LTD.

Inventor： Yang Luo ,  Zhongkai Wang ,  Yuanfei Yang ,  Zilong Wang ,  Dunbo Yu ,  Yifan Liao ,  Jiajun Xie ,  Zhou Hu

IPC: H01F1/057 ,  B22F1/05 ,  B22F1/065 ,  B22F1/102 ,  C22C33/02 ,  H01F1/059 ,  H01F41/02

CPC classification number: C22C33/0257 ,  B22F1/05 ,  B22F1/065 ,  B22F1/102 ,  H01F1/0578 ,  H01F1/059 ,  H01F41/0266 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/02 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/20 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/225 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/18

Abstract: The invention discloses a composite rare earth anisotropic bonded magnet and a preparation method thereof. The composite rare earth anisotropic bonded magnet comprises a Nd—Fe—B magnetic powder, a Sm—Fe—N magnetic powder, a binder and an inorganic nano-dispersant. The preparation method comprises steps of preparing a Nd—Fe—B magnetic powder by a HDDR method, preparing a Sm—Fe—N magnetic powder by a powder metallurgy method, mixing the Nd—Fe—B magnetic powder, the Sm—Fe—N magnetic powder, the binder and the inorganic nano-dispersant at a specific ratio to finally obtain the composite rare earth anisotropic bonded magnet. The invention, by adding an inorganic nano-dispersant, enables the full dispersion of the fine Sm—Fe—N powder during the mixing process of the binder, the Nd—Fe—B magnetic powder and the Sm—Fe—N powder, and thus makes the fine Sm—Fe—N powder and the binder evenly coated on the surface of the anisotropic Nd—Fe—B magnetic powder.

公开(公告)号：US11802326B2

公开(公告)日：2023-10-31

申请号：US17331531

申请日：2021-05-26

Applicant: GRIREM HI-TECH CO., LTD. ,  GRIREM ADVANCED MATERIALS CO., LTD. ,  Grirem (Rongcheng) Co., Ltd.

Inventor： Yang Luo ,  Yuanfei Yang ,  Zilong Wang ,  Dunbo Yu ,  Hongbin Zhang ,  Jiajun Xie ,  Zhou Hu ,  Zhongkai Wang

IPC: C22C38/00 ,  H01F1/057 ,  H01F41/02 ,  B22F7/06 ,  H01F1/055 ,  B22F1/102

CPC classification number: C22C38/002 ,  B22F1/102 ,  B22F7/062 ,  C22C38/005 ,  H01F1/0558 ,  H01F1/0576 ,  H01F1/0578 ,  H01F41/0266 ,  B22F2202/05 ,  B22F2301/355 ,  C22C2202/02 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/02 ,  B22F2003/248

Abstract: An anisotropic bonded magnet and a preparation method thereof are provided. By stacking magnets having different magnetic properties and/or densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in pressing densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method solves the problem of “low in the middle and high at two ends” caused by the phenomenon of non-uniform magnetic field orientation and density along a height direction during orientation and densification.

公开(公告)号：US20230321632A1

公开(公告)日：2023-10-12

申请号：US18027044

申请日：2021-08-27

Applicant: GRIREM ADVANCED MATERIALS CO., LTD. ,  RARE EARTH FUNCTIONAL MATERIALS (XIONG 'AN) INNOVATION CENTER CO., LTD. ,  GRIREM HI-TECH CO., LTD.

Inventor： Xiaowei HUANG ,  Yongke HOU ,  Zheng ZHAO ,  Yongqi ZHANG ,  Juanyu YANG ,  Meisheng CUI ,  Zhizhe ZHAI ,  Yang XU ,  Zongyu FENG ,  Shilei CHEN

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B01J37/03 ,  B01J23/10 ,  B01D53/94 ,  B01J37/08

CPC classification number: B01J21/066 ,  B01J35/1014 ,  B01J37/009 ,  B01J37/038 ,  B01J23/10 ,  B01J35/1038 ,  B01J35/1042 ,  B01D53/945 ,  B01J37/08 ,  B01D2255/407 ,  B01D2258/01 ,  B01D2255/908

Abstract: The present disclosure relates to a cerium-zirconium-based composite oxide having gradient element distribution and a preparation method therefor. According to the present disclosure, the cerium-zirconium-based composite oxide having gradient element distribution is prepared by a step-by-step precipitation method. First, a zirconium-rich component is precipitated to form a crystal structure and a crystal grain stack structure which have high thermal stability, slow down the segregation of zirconium on a surface after high-temperature treatment, and reduce element migration among crystal grains; second, a cerium-rich component is precipitated to improve the cerium content of the surface layers of the crystal grains, improve the utilization rate of the cerium element, and improve the oxygen storage amount and the oxygen storage rate.

公开(公告)号：US11685860B2

公开(公告)日：2023-06-27

申请号：US17441920

申请日：2020-10-30

Applicant: GRIREM ADVANCED MATERIALS CO., LTD. ,  GRIREM HI-TECH CO., LTD. ,  Rare Earth Functional Materials (Xiong 'an) Innovation Center Co., Ltd.

Inventor： Jinqiu Yu ,  Liang Luo ,  Chengpeng Diao ,  Lei Cui ,  Hao Wu ,  Huaqiang He

IPC: C30B11/00 ,  C09K11/77 ,  G01T1/36

CPC classification number: C09K11/7719 ,  C30B11/00 ,  G01T1/362

Abstract: A rare earth halide scintillation material the chemical formula of the material being CeBr3+x, wherein 0.0001x0.1. The rare earth halide scintillation material has excellent scintillation properties including high light output, high energy resolution, and fast decay.

公开(公告)号：US20220184583A1

公开(公告)日：2022-06-16

申请号：US17422691

申请日：2020-09-04

Applicant: GRIREM ADVANCED MATERIALS CO.,LTD. ,  Rare Earth Functional Materials (Xiong'an) Innovation Center Co., Ltd. ,  GRIREM HI-TECH CO.,LTD.

Inventor： Xiaowei HUANG ,  Yongqi ZHANG ,  Hongwei LI ,  Zhizhe ZHAI ,  Qiang ZHONG ,  He ZHANG ,  Meisheng CUI ,  Yongke HOU ,  Hao WANG ,  Zongyu FENG

IPC: B01J23/10 ,  B01J21/06 ,  B01J23/02 ,  B01J6/00 ,  B01J35/00 ,  B01J37/04 ,  F01N3/10

Abstract: The present invention discloses a rare-earth-manganese/cerium-zirconium-based composite compound, a method for preparing the same, and a use thereof. The composite compound is of a core-shell structure with a general formula expressed as: A REcBaOb-(1-A)CexZr(1-x-y)MyO2-z, wherein 0.1≤A≤0.3, preferably 0.1≤A≤0.2; a shell layer has a main component of rare-earth manganese oxide with a general formula of REcMnaOb, wherein RE is a rare-earth element or a combination of more than one rare-earth elements, and B is Mn or a combination of Mn and a transition metal element, 1≤a≤8, 2≤b≤18, and 0.25≤c≤4; and a core has a main component of cerium-zirconium composite oxide with a general formula of CexZr(1-x-y)MyO2-z, wherein M is one or more non-cerium rare-earth elements, 0.1≤x≤0.9, 0≤y≤0.3, and 0.01≤z≤0.3. The composite compound enhances an oxygen storage capacity of a cerium-zirconium material through an interface effect, thereby increasing a conversion rate of a nitrogen oxide.