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    SYSTEMS AND METHODS FOR FABRICATING CRYSTALS OF METAL COMPOUNDS
    1.
    发明申请
    SYSTEMS AND METHODS FOR FABRICATING CRYSTALS OF METAL COMPOUNDS 有权

    公开(公告)号：US20230027886A1

    公开(公告)日：2023-01-26

    申请号：US17869710

    申请日：2022-07-20

    申请人： Hongjie Qiu ,  Dong Rick Qiu

    发明人： Hongjie Qiu ,  Dong Rick Qiu

    IPC分类号： C30B1/00 ,  C30B29/40 ,  C30B29/36 ,  B22F9/08

    摘要： The present disclosure provides systems and methods for forming block crystals of a metal compound. In some embodiments, a method for forming block crystals of a metal compound may comprise (a) introducing a source metal into a furnace; (b) forming a complete or partial vacuum in the furnace and increasing a temperature of the furnace above a melting point of the source metal to form a liquid flow of the source metal; (c) breaking the liquid flow to generate particles of the source metal; (d) ionizing the particles in an ionization chamber to form ionized particles, wherein the ionization chamber has a temperature above a decomposition temperature of the metal compound; and (e) introducing the ionized particles into a growth chamber comprising a reactive gas that is reactive with the ionized particles, to thereby form the block crystals of the metal compound.

    Lithium ion secondary battery and method for manufacturing the same
    3.
    发明授权
    Lithium ion secondary battery and method for manufacturing the same 有权

    公开(公告)号：US10566649B2

    公开(公告)日：2020-02-18

    申请号：US15608439

    申请日：2017-05-30

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Tomoya Futamura ,  Tamae Moriwaka ,  Takahiro Kawakami ,  Junpei Momo ,  Nobuhiro Inoue

    IPC分类号： H01M10/0525 ,  H01M4/136 ,  H01M4/58 ,  H01M4/13 ,  H01M4/36 ,  H01M4/66 ,  H01M4/02 ,  C30B1/00

    摘要： A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing, composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.

    Synthesis of metal oxide surfaces and interfaces with crystallographic control using solid-liquid-vapor etching and vapor-liquid-solid growth
    5.
    发明授权
    Synthesis of metal oxide surfaces and interfaces with crystallographic control using solid-liquid-vapor etching and vapor-liquid-solid growth 有权

    公开(公告)号：US10312081B2

    公开(公告)日：2019-06-04

    申请号：US15370041

    申请日：2016-12-06

    申请人： University of Kentucky Research Foundation

    发明人： Beth S. Guiton ,  Lei Yu

    IPC分类号： H01L21/02 ,  C30B1/00 ,  H01L31/18

    摘要： The present invention provides integrated nanostructures comprising a single-crystalline matrix of a material A containing aligned, single-crystalline nanowires of a material B, with well-defined crystallographic interfaces are disclosed. The nanocomposite is fabricated by utilizing metal nanodroplets in two subsequent catalytic steps: solid-liquid-vapor etching, followed by vapor-liquid-solid growth. The first etching step produces pores, or “negative nanowires” within a single-crystalline matrix, which share a unique crystallographic direction, and are therefore aligned with respect to one another. Further, since they are contained within a single, crystalline, matrix, their size and spacing can be controlled by their interacting strain fields, and the array is easily manipulated as a single entity—addressing a great challenge to the integration of freestanding nanowires into functional materials. In the second, growth, step, the same metal nanoparticles are used to fill the pores with single-crystalline nanowires, which similarly to the negative nanowires have unique growth directions, and well-defined sizes and spacings. The two parts of this composite behave synergistically, since this nanowire-filled matrix contains a dense array of well-defined crystallographic interfaces, in which both the matrix and nanowire materials convey functionality to the material. The material of either one of these components may be chosen from a vast library of any material able to form a eutectic alloy with the metal in question, including but not limited to every material thus far grown in nanowire form using the ubiquitous vapor-liquid-solid approach. This has profound implications for the fabrication of any material intended to contain a functional interface, since high interfacial areas and high quality interfacial structure should be expected. Technologies to which this simple approach could be applied include but are not limited to p-n junctions of solar cells, battery electrode arrays, multiferroic materials, and plasmonic materials.

    Process for preparation of compound containing 6A group element using reductant
    9.
    发明授权
    Process for preparation of compound containing 6A group element using reductant 有权
    使用还原剂制备含有6A族元素的化合物的方法

    公开(公告)号：US08679249B2

    公开(公告)日：2014-03-25

    申请号：US12738005

    申请日：2008-10-14

    申请人： Seokhee Yoon ,  Seokhyun Yoon ,  Taehun Yoon

    发明人： Seokhee Yoon ,  Seokhyun Yoon ,  Taehun Yoon

    IPC分类号： C01B19/04 ,  C01B19/00 ,  C30B1/00

    CPC分类号： C01B19/007 ,  B82Y30/00 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84

    摘要： Provided is a process for preparation of a compound containing a group 6A element which includes reaction of at least one compound selected from a group consisting of group IB element containing compounds and group 3 A element containing compounds with a group 6A element containing compound carried out using a reductant in a desirable solvent to produce a compound containing group 1B-6A elements, a compound containing group 3 A-6A elements and/or a compound containing group 1B-3A-6A elements.

    摘要翻译： 提供了一种制备含有6A族元素的化合物的方法，其包括至少一种选自含IB族元素的化合物的化合物和含有3A元素的化合物与含有6A元素的化合物的反应，所述化合物包含使用 还原剂在理想的溶剂中以制备含有1B-6A族元素的化合物，含有3A-6A族元素的化合物和/或含有1B-3A-6A族元素的化合物。