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    ELIMINATION OF TOOL ADHESION IN AN ULTRASONIC WELDING PROCESS
    1.
    发明申请
    ELIMINATION OF TOOL ADHESION IN AN ULTRASONIC WELDING PROCESS 有权
    超声波焊接工艺中工具粘合的消除

    公开(公告)号：US20150375334A1

    公开(公告)日：2015-12-31

    申请号：US14739256

    申请日：2015-06-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Michael P. Balogh ,  Wayne W. Cai ,  Teresa J. Rinker ,  Thomas J. Chapaton ,  Peng Lu ,  Eric G. Hartnagle

    IPC: B23K20/10 ,  B23K31/12

    CPC classification number: B23K20/106 ,  B23K1/06 ,  B23K3/028

    Abstract: A welding assembly includes a sonotrode, cleaning station, and controller. The controller periodically commands clamping of the sonotrode onto the cleaning block, and a transmission of ultrasonic energy into the cleaning block for a calibrated duration sufficient for removing residual amounts of metal from welding pads of the sonotrode. The cleaning block may include an aluminum bar coated with a polymeric material, e.g., porous polyethylene silica or alumina composite. A thin sacrificial layer of an anti-adhesion material, e.g., colloidal silica, may be periodically applied to the welding pads, particularly after a transition from welding a first metal to welding a second metal. The sacrificial layer may be applied via a sponge, a saturated surface, or spraying.

    Abstract translation: 焊接组件包括超声波发生器，清洁站和控制器。 控制器周期性地指示超声波发生器夹在清洁块上，并将超声波能量传输到清洁块中，该校准持续时间足以从超声波焊接焊盘去除剩余的金属量。 清洁块可以包括涂覆有聚合材料的铝棒，例如多孔聚乙烯二氧化硅或氧化铝复合材料。 特别是在从第一金属焊接到焊接第二金属的过渡之后，可以周期性地对焊接垫施加抗粘附材料（例如胶体二氧化硅）的薄牺牲层。 牺牲层可以经由海绵，饱和表面或喷涂施加。

    Electrolyte system for silicon-containing electrodes
    2.
    发明授权
    Electrolyte system for silicon-containing electrodes 有权

    公开(公告)号：US10727535B2

    公开(公告)日：2020-07-28

    申请号：US15491089

    申请日：2017-04-19

    Applicant: GM Global Technology Operations LLC

    Inventor： Li Yang ,  Mei Cai ,  Peng Lu ,  Fang Dai

    IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/131 ,  H01M4/48 ,  H01M4/38

    Abstract: Electrochemical cells that cycle lithium ions are provided. The electrochemical cells have an electrode that includes a silicon-containing electroactive material that undergoes volumetric expansion and contraction during the cycling of the electrochemical cell; and an electrolyte system that promotes passive formation of a flexible protective layer comprising a lithium fluoride-polymer composite on one or more exposed surface regions of the silicon-containing electroactive material. The electrolyte system includes a lithium salt, at least one cyclic carbonate, and two or more linear carbonates. At least one of the two or more linear carbonate-containing co-solvents is a fluorinated carbonate-containing co-solvent. The electrolyte system accommodates the volumetric expansion and contraction of the silicon-containing electroactive material to promote long term cycling stability.

    SYNERGY FOR IMPROVED THERMAL SPRAY ADHESION
    3.
    发明申请
    SYNERGY FOR IMPROVED THERMAL SPRAY ADHESION 审中-公开

    公开(公告)号：US20190040514A1

    公开(公告)日：2019-02-07

    申请号：US15668027

    申请日：2017-08-03

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Su Jung Han ,  Martin S. Kramer ,  Peng Lu ,  Zhe Li ,  Yucong Wang

    IPC: C23C4/02 ,  C23C4/12 ,  C23C4/06 ,  F02F1/00

    Abstract: A method of coating an inner surface of an engine cylinder bore includes cleaning the surface to remove carbon, resulting in the surface having a maximum of 30 atomic percent carbon, texturing the surface to achieve a developed interfacial area ratio of at least 100%, and heating the surface to between 100-200 degrees Celsius. A thermal spray coating is then adhered to the surface. In some cases, a force of 25+ Newtons scratched across the thermal spray coating is required to remove the thermal spray coating from the surface. Maximum adhesion strength is achieved when the coating is applied to: 1) a heated surface that has 2) an Sdr of at least 100% and 3) a maximum of 20 atomic percent of carbon on the surface. When these three criteria are all present, adhesion strength can be 50 Newtons or more with evidence of metallurgical diffusion/bonding at the interface.

    ELECTROLYTE SYSTEM FOR SILICON-CONTAINING ELECTRODES
    6.
    发明申请
    ELECTROLYTE SYSTEM FOR SILICON-CONTAINING ELECTRODES 审中-公开

    公开(公告)号：US20180309169A1

    公开(公告)日：2018-10-25

    申请号：US15491089

    申请日：2017-04-19

    Applicant: GM Global Technology Operations LLC

    Inventor： Li Yang ,  Mei Cai ,  Peng Lu ,  Fang Dai

    IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/131 ,  H01M4/48

    Abstract: Electrochemical cells that cycle lithium ions are provided. The electrochemical cells have an electrode that includes a silicon-containing electroactive material that undergoes volumetric expansion and contraction during the cycling of the electrochemical cell; and an electrolyte system that promotes passive formation of a flexible protective layer comprising a lithium fluoride-polymer composite on one or more exposed surface regions of the silicon-containing electroactive material. The electrolyte system includes a lithium salt, at least one cyclic carbonate, and two or more linear carbonates. At least one of the two or more linear carbonate-containing co-solvents is a fluorinated carbonate-containing co-solvent. The electrolyte system accommodates the volumetric expansion and contraction of the silicon-containing electroactive material to promote long term cycling stability.

    GESTURE-BASED VEHICLE-USER INTERACTION
    7.
    发明申请
    GESTURE-BASED VEHICLE-USER INTERACTION 审中-公开

    公开(公告)号：US20170120932A1

    公开(公告)日：2017-05-04

    申请号：US15342451

    申请日：2016-11-03

    Applicant: GM Global Technology Operations LLC

    Inventor： Joseph F. Szczerba ,  Tricia E. Neiiendam ,  Peng Lu ,  Xiaosong Huang

    IPC: B60W50/10 ,  G06F3/01

    CPC classification number: B60W50/10 ,  B60K35/00 ,  B60K2370/146 ,  B60K2370/1464 ,  B60K2370/55 ,  B60K2370/573 ,  B60K2370/589 ,  G06F3/017 ,  G06F3/0346

    Abstract: A system, for use in implementing a vehicle function based on user gesture, including a hardware-based processing unit and a hardware-based storage device. The storage device includes a user-gesture determination module that, when executed by the hardware-based processing unit, determines a user gesture, made by a user proximate a vehicle, wherein the user gesture is not an under-vehicle user kick. The storage device also includes a vehicle-function identification module that, when executed by the hardware-based processing unit, determines a vehicle function pre-associated with the user gesture determined. The storage device further includes a vehicle-function activation module that, when executed by the hardware-based processing unit, initiates performance of the vehicle function identified. In various embodiments the technology includes the storage device, and processes including any of the operations described.

    Elimination of tool adhesion in an ultrasonic welding process
    8.
    发明授权
    Elimination of tool adhesion in an ultrasonic welding process 有权
    在超声波焊接过程中消除工具粘附

    公开(公告)号：US09573221B2

    公开(公告)日：2017-02-21

    申请号：US14739256

    申请日：2015-06-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Michael P. Balogh ,  Wayne W. Cai ,  Teresa J. Rinker ,  Thomas J. Chapaton ,  Peng Lu ,  Eric G. Hartnagle

    IPC: B23K1/06 ,  B23K20/10 ,  B23K3/02

    CPC classification number: B23K20/106 ,  B23K1/06 ,  B23K3/028

    Abstract: A welding assembly includes a sonotrode, cleaning station, and controller. The controller periodically commands clamping of the sonotrode onto the cleaning block, and a transmission of ultrasonic energy into the cleaning block for a calibrated duration sufficient for removing residual amounts of metal from welding pads of the sonotrode. The cleaning block may include an aluminum bar coated with a polymeric material, e.g., porous polyethylene silica or alumina composite. A thin sacrificial layer of an anti-adhesion material, e.g., colloidal silica, may be periodically applied to the welding pads, particularly after a transition from welding a first metal to welding a second metal. The sacrificial layer may be applied via a sponge, a saturated surface, or spraying.

    Abstract translation: 焊接组件包括超声波发生器，清洁站和控制器。 控制器周期性地指示超声波发生器夹在清洁块上，并将超声波能量传输到清洁块中，该校准持续时间足以从超声波焊接焊盘去除剩余的金属量。 清洁块可以包括涂覆有聚合材料的铝棒，例如多孔聚乙烯二氧化硅或氧化铝复合材料。 特别是在从第一金属焊接到焊接第二金属的过渡之后，可以周期性地对焊接垫施加抗粘附材料（例如胶体二氧化硅）的薄牺牲层。 牺牲层可以经由海绵，饱和表面或喷涂施加。

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