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    ALUMINUM IRON SILICON ALLOYS HAVING OPTIMIZED PROPERTIES
    31.
    发明申请
    ALUMINUM IRON SILICON ALLOYS HAVING OPTIMIZED PROPERTIES 审中-公开

    公开(公告)号：US20190093198A1

    公开(公告)日：2019-03-28

    申请号：US16156265

    申请日：2018-10-10

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhongyi Liu ,  Daad B. Haddad ,  Julie A. Swartz

    IPC: C22C21/00 ,  C22C30/00

    Abstract: Al—Fe—Si alloys having optimized properties through the use of additives are disclosed. In some aspects, an alloy includes aluminum in a first amount, iron in a second amount, silicon in a third amount, and an additive in a fourth amount. The additive is selected from the group consisting of a non-metal additive, a transition-metal additive, a rare-metal additive, and combinations thereof. The first amount, the second amount, the third amount, and the fourth amount produce an alloy with a stoichiometric formula (Al1-xAx)3Fe2Si where A is the additive.

    METHODS FOR FORMING ELECTRODE MATERIALS FOR LITHIUM-BASED BATTERIES
    34.
    发明申请
    METHODS FOR FORMING ELECTRODE MATERIALS FOR LITHIUM-BASED BATTERIES 有权
    用于形成锂基电池的电极材料的方法

    公开(公告)号：US20160149206A1

    公开(公告)日：2016-05-26

    申请号：US14555078

    申请日：2014-11-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhongyi Liu

    IPC: H01M4/134 ,  H01M4/58 ,  H01M4/485

    CPC classification number: H01M4/134 ,  H01M4/131 ,  H01M4/386 ,  H01M4/485 ,  H01M4/581 ,  H01M10/052 ,  H01M2004/027 ,  Y02T10/7011

    Abstract: In an example of the method disclosed herein, a precipitate is formed in an aqueous mixture by mixing an SiOx precursor and an acid. The precipitate and a carbon material are added to a base, and the precipitate dissolves to form a solution having the carbon material therein. Hydrothermal synthesis is performed using the solution, and precursor nanostructures are grown on the carbon material. The precursor nanostructures on the carbon material are annealed so that the carbon material is removed and porous, one-dimensional SiOx (0

    Abstract translation: 在本文公开的方法的实例中，通过混合SiOx前体和酸在含水混合物中形成沉淀物。 将沉淀物和碳材料加入到碱中，并且沉淀物溶解以形成其中具有碳材料的溶液。 使用溶液进行水热合成，并将前体纳米结构生长在碳材料上。 对碳材料上的前体纳米结构进行退火，从而去除碳材料并使其多孔，形成一维SiO x（0

    COMPOSITE COMPOUND ADDITIVES INCLUDING A METAL OXIDE-CONTAINING SUB-COMPOUND AND A TUNGSTEN-CONTAINING SUB-COMPOUND FOR FUEL CELLS
    35.
    发明公开
    COMPOSITE COMPOUND ADDITIVES INCLUDING A METAL OXIDE-CONTAINING SUB-COMPOUND AND A TUNGSTEN-CONTAINING SUB-COMPOUND FOR FUEL CELLS 审中-公开

    公开(公告)号：US20240170703A1

    公开(公告)日：2024-05-23

    申请号：US17988891

    申请日：2022-11-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Ruichun Jiang ,  Zhongyi Liu ,  Nicholas P.W. Pieczonka

    IPC: H01M8/1004

    CPC classification number: H01M8/1004 ,  H01M2008/1095

    Abstract: Membrane electrode assemblies for fuel cells and components thereof are provided. In one example, a membrane electrode assembly includes a generally planar gas-permeable body having opposed first and second faces defining in-plane directions and a through-plane direction, a side face extending about an outer perimeter of the body and adjoining each of the first and second faces, and an active region bounded in the through-plane direction by the first and second faces and in the in-plane directions by an active region perimeter defined generally within the outer perimeter. The active region includes a distribution of a composite compound additive dispersed across at least one of the in-plane and through-plane directions. The composite compound additive includes a metal oxide-containing sub-compound and a tungsten-containing sub-compound.

    Methods of briquetting precursor materials for prelithiated silicon active materials
    37.
    发明授权
    Methods of briquetting precursor materials for prelithiated silicon active materials 有权

    公开(公告)号：US11588145B2

    公开(公告)日：2023-02-21

    申请号：US16826041

    申请日：2020-03-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhongyi Liu ,  Xiaosong Huang ,  James R. Salvador

    IPC: H01M4/134 ,  B22F3/03 ,  B22F1/00 ,  H01M4/04 ,  B22F1/102 ,  H01M4/02

    Abstract: A method of making a lithiated silicon-based precursor material for a negative electrode material of an electrochemical cell that cycles lithium ions is provided. An admixture comprising a plurality of lithium particles and a plurality of silicon particles is briquetted by applying pressure of greater than or equal to about 10 MPa and applying heat at a temperature of less than or equal to about 180° C. to form a precursor briquette. The briquette has lithium particles and silicon particles distributed in a matrix and has a porosity level of less than or equal to about 60% of the total volume of the precursor briquette. The briquetting is conducted in an environment having less than or equal to about 0.002% by weight of any oxygen-bearing species or nitrogen (N2).

    High-performance electroactive material within a sandwiched structure
    38.
    发明授权
    High-performance electroactive material within a sandwiched structure 有权

    公开(公告)号：US10985366B2

    公开(公告)日：2021-04-20

    申请号：US16249443

    申请日：2019-01-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Hamid G. Kia ,  Xiaosong Huang ,  Zhongyi Liu

    IPC: H01M4/36 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/48 ,  H01M4/62 ,  H01M4/38

    Abstract: Systems, methods, and high performance electrochemical devices employing electroactive particles having a sandwich structure are described. The electroactive particle includes an electroactive layer between a pair of dimension-control layers. The electroactive layer includes an electroactive material configured to receive cations and experience a volumetric change in response thereto. The dimension-control layers are configured to inhibit planar dimensional changes of the electroactive particle such that the volumetric change of the electroactive layer occurs through a vertical dimension of the electroactive particle. The vertical dimension is orthogonal to the planar dimensions.

    Lightweight dual-phase alloys
    39.
    发明授权
    Lightweight dual-phase alloys 有权

    公开(公告)号：US10519531B2

    公开(公告)日：2019-12-31

    申请号：US15436198

    申请日：2017-02-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhongyi Liu ,  Frederick E. Pinkerton

    IPC: C22C30/00 ,  C22C1/04 ,  B33Y70/00 ,  B22F9/04

    Abstract: According to aspects of the present disclosure, a ternary alloy includes a dual-phase microstructure including a first phase and a second phase. The first phase defines a hexagonal close-packed structure with a stoichiometric ratio of Al4Fe1.7Si. The second phase defines a face-centered cubic structure with a stoichiometric ratio of Al3Fe2Si. The dual-phase microstructure is stable above about 800° C., and the dual-phase microstructure has a first-phase abundance greater than about 50 parts by weight and a second-phase abundance less than about 50 parts by weight based on 100 parts by weight of the ternary alloy.

    Rapidly solidified high-temperature aluminum iron silicon alloys
    40.
    发明授权
    Rapidly solidified high-temperature aluminum iron silicon alloys 有权

    公开(公告)号：US10435773B2

    公开(公告)日：2019-10-08

    申请号：US16375099

    申请日：2019-04-04

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhongyi Liu ,  Anil K. Sachdev

    IPC: C22C45/08 ,  C22C1/00

    Abstract: High-strength, lightweight alloy components, such as automotive components, capable of high temperature performance comprising aluminum, silicon, and iron and/or nickel are provided, along with methods of making such high-strength, lightweight alloy components. A high-energy stream, such as a laser or electron beam, may be selectively directed towards a precursor material to melt a portion of the precursor material in a localized region. The molten precursor material is cooled at a rate of greater than or equal to about 1.0×105 K/second to form a solid high-strength, lightweight alloy component comprising a stable ternary cubic phase having high heat resistance and high strength. The stable ternary phase may be AlxFeySiz, where x ranges from about 4 to about 5 or about 7.2 to about 7.6, y is about 1.5 to about 2.2, and z is about 1. The stable ternary phase may also be Al6Ni3Si.

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