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    Method and apparatus for evaluating battery cells containing materials that exhibit voltage hysteresis
    111.
    发明授权
    Method and apparatus for evaluating battery cells containing materials that exhibit voltage hysteresis 有权

    公开(公告)号：US10901042B2

    公开(公告)日：2021-01-26

    申请号：US15934161

    申请日：2018-03-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Mark W. Verbrugge ,  Daniel R. Baker ,  Xingcheng Xiao

    IPC: H02J7/00 ,  G01R31/3835 ,  H02J7/14 ,  G01R31/367

    Abstract: A method for determining a state of charge (SOC) of a rechargeable battery cell includes determining a rate-invariant charge/discharge relationship between an open-circuit voltage (OCV) and a state of charge (SOC). This includes a first finite-rate voltage scan following a reduction branch of a relationship between OCV and the SOC, and executing a second finite-rate voltage scan following an oxidation branch of a relationship between OCV and the SOC. A rate-dependent charge/discharge relationship between the OCV and the SOC is determined during scanned voltage transitions between the reduction and oxidation branches. A present SOC state is determined based upon an electrical potential, the rate-invariant charge/discharge relationship between the OCV and the SOC, and the rate-dependent charge/discharge relationship between the OCV and the SOC during a voltage-scan reversal that occurs when the scanned voltage transitions between the reduction and oxidation branches.

    SMART MULTIFUNCTIONAL LENS COATINGS
    113.
    发明申请
    SMART MULTIFUNCTIONAL LENS COATINGS 审中-公开

    公开(公告)号：US20200064520A1

    公开(公告)日：2020-02-27

    申请号：US16108850

    申请日：2018-08-22

    Applicant: GM Global Technology Operations LLC

    Inventor： Xingcheng Xiao ,  Xiaosong Huang ,  Jinsong Wang ,  Qingrong Zhao

    IPC: G02B1/18 ,  G02B6/12 ,  B32B9/00 ,  B32B27/28

    Abstract: Systems, methods and devices to inhibit sensing reduction in imperfect sensing conditions are described. A multifunctional coating superposing a lens includes a self-cleaning layer and a heating layer. The self-cleaning layer defines an external surface configured to be exposed to an exterior environment. The external surface defines three-dimensional surface features thereon. The three-dimensional surface features are adjacently disposed arcuate features that inhibit adhering of solid particles to the external surface and wetting of the external surface. The heating layer is in thermal communication with the external surface. The heating layer is selectively actuated to provide thermal energy to the external surface through resistive heating. Each of the self-cleaning layer and the heating layer is transparent to a predetermined wavelength of light.

    SINTER-RESISTANT CATALYST SYSTEMS
    115.
    发明申请
    SINTER-RESISTANT CATALYST SYSTEMS 审中-公开

    公开(公告)号：US20200047159A1

    公开(公告)日：2020-02-13

    申请号：US16056973

    申请日：2018-08-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Xingcheng Xiao ,  Ming Yang ,  Gongshin Qi ,  Wei Li

    IPC: B01J23/44 ,  B01J23/10 ,  B01J33/00 ,  B01J35/00 ,  B01D53/94

    Abstract: Sinter-resistant catalyst systems include a catalytic substrate comprising a plurality of metal catalytic nanoparticles bound to a metal oxide catalyst support, and a coating of oxide nanoparticles disposed on the metal catalytic nanoparticles and optionally on the metal oxide support. The oxide nanoparticles comprise one or more lanthanum oxides and optionally one or more barium oxides, and additionally one or more oxides of aluminum, cerium, zirconium, titanium, silicon, magnesium, zinc, iron, strontium, and calcium. The metal catalytic nanoparticles can include ruthenium, rhodium, palladium, osmium, iridium, and platinum, rhenium, copper, silver, and/or gold. The metal oxide catalyst support can include one or more metal oxides selected from the group consisting of Al2O3, CeO2, ZrO2, TiO2, SiO2, La2O3, MgO, and ZnO. The coating of oxide nanoparticles is about 0.1% to about 50% lanthanum and barium oxides. The oxide nanoparticles can further include one or more oxides of magnesium and/or cobalt.

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