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公开(公告)号：US20250030134A1
公开(公告)日：2025-01-23
申请号：US18355713
申请日：2023-07-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jing Gao , Brian J. Koch , Zhe Li , Huaxin Li , Anne Zhang
IPC: H01M50/54 , B60L50/64 , H01M50/249 , H01M50/46 , H01M50/533 , H01M50/534 , H01M50/536
Abstract: Presented are electrochemical devices with in-stack reference electrodes, methods for making/using such devices, and battery cells with stacked electrodes segregated by electrode separator assemblies having built-in reference electrodes. An electrochemical device includes a protective outer housing that contains an ion-conducting electrolyte. A stack of working electrodes is packaged inside the device housing in electrochemical contact with the electrolyte. At least one electrode separator assembly is located inside the housing, interposed between a neighboring pair of these working electrodes. The electrode separator assembly includes an electrically insulating separator sheet with a reference electrode. A tab pocket, which projects from an end of the separator sheet, includes a tab chamber with a chamber opening. An electrode tab is formed with an electrically conductive material and attached to the tab pocket. One end of the electrode tab is disposed in the tab chamber and the other end projects out from the chamber opening.
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公开(公告)号：US20240332757A1
公开(公告)日：2024-10-03
申请号：US18194061
申请日：2023-03-31
Applicant: GM Global Technology Operations LLC
Inventor： Yi Liu , Qigui Wang , Huaxin Li , Kestutis A. Sonta , Daniel J. Wilson
IPC: H01M50/559 , H01M4/66 , H01M10/44 , H01M50/213 , H01M50/51 , H01M50/512
CPC classification number: H01M50/559 , H01M4/667 , H01M10/441 , H01M50/213 , H01M50/51 , H01M50/512 , H01M2220/20
Abstract: A vehicular battery module comprises a plurality of battery cells having a first end and a second end. Each battery cell comprises a first portion extending to a second portion. Each first portion has a conductive first terminal and each second portion has a conductive second terminal. The module further comprises at least one cell holder in which the plurality of battery cells is disposed. The module further comprises first and second current collectors. The first current collector comprises a first metal substrate and a first copper-graphene (Cu-Gr) multilayer composite disposed on the first metal substrate. The first current collector is disposed on the first end of the plurality of battery cells. The second current collector comprises a second metal substrate and a second Cu-Gr multilayer composite disposed on the second metal substrate. The second current collector is disposed on the second end of the plurality of battery cells.
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公开(公告)号：US20230291288A1
公开(公告)日：2023-09-14
申请号：US17648568
申请日：2022-01-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alireza Fatemi , Thomas W. Nehl , Huaxin Li , Anil K. Sachdev
Abstract: A rotor for an electric machine includes strengthened structural elements effected through surface alloying and heating via an induction heating fixture. A rotor includes laminations formed to have internal cavities and structural members adjacent the cavities. A number of the laminations are stacked to form a lamination stack. An alloying material is applied to the lamination stack at the structural members. The lamination stack is placed in a fixture so that an inductor extends along the structural members and cooling elements extend through the cavities. A current is applied to the inductor to heat the structural members, alloying the alloying material into the structural members.
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公开(公告)号：US11754143B1
公开(公告)日：2023-09-12
申请号：US17825279
申请日：2022-05-26
Applicant: GM Global Technology Operations LLC
Inventor： Huaxin Li , Jianghuai Yang , James D. Cremonesi , Mark R. Claywell
CPC classification number: F16F15/14 , B23K26/22 , F16F15/24 , F16F2226/048 , F16F2232/02 , F16H2055/366
Abstract: A damper for suppressing vibrations of a crankshaft of a vehicle is disclosed. The damper comprises a hub having a circular wall extending about a rotational axis to define a bore formed therethrough. The wall comprises a step portion radially extending therefrom and having a first arcuate portion formed thereon. The hub comprises a body portion radially extending from the wall to a lip to define an open cavity. The damper comprises a weld nugget disposed between the hub and the plate. The weld nugget has a root extending therethrough concurrent with the rotational axis to join the hub and the plate. The root has tip defining a profile such that the hollow channel is disposed at an angle tangent to the profile to lessen cracking due to stress.
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公开(公告)号：US20230030336A1
公开(公告)日：2023-02-02
申请号：US17387278
申请日：2021-07-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Daniel J. Wilson , Qigui Wang , Liang Wang , Huaxin Li , Jason J. Coryell , Joshua L. Solomon
Abstract: The concepts described herein provide a method, system, and apparatus for joining, via welding, first and second members fabricated from an aluminum alloy including aluminum, zinc, and manganese, such as 7000-series aluminum alloys, and a resultant workpiece. A junction is formed by a first member being disposed contiguously to a second member. A welding machine generates a weld pool at the junction that includes liquified aluminum alloy. An ultrasonic transducer directs ultrasonic energy in proximity to the weld pool. In some embodiments, an electro-magnetic transducer directs electro-magnetic energy in proximity to the weld pool. The first member is fused to the second member at the junction upon solidification of the weld pool.
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Patent Agency Ranking
公开(公告)号：US11300153B2
公开(公告)日：2022-04-12
申请号：US16297592
申请日：2019-03-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Liang Wang , Richard D. Ricchi
Abstract: A component includes a base formed of a majority of a first metallic element and a shell adhered to the base. The shell includes an inner portion having an inner surface contacting the base, an outer portion having an outer surface, and an intermediate zone connecting the inner portion to the outer portion. The shell is formed of a multi-element transition material, where the multi-element transition material includes a majority of a second metallic element at the inner surface and a majority of a third metallic element at the outer surface. The intermediate zone includes both the second and third metallic elements. Each of the first, second, and third metallic elements are different from one another. The component may be an automotive shaft. A method of forming the component may include depositing first and second powders on the base to form the inner and outer portions and the intermediate zone.
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公开(公告)号：US20200324358A1
公开(公告)日：2020-10-15
申请号：US16382473
申请日：2019-04-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Jahnavi Narkar , Craig D. Reynolds
Abstract: A method of resistance welding first and second parts formed of dissimilar materials includes disposing a first electrode on a side of the first part and a second electrode on a side of the second part. Grooves separated by raised portions are formed in a faying surface of the second part. Pressure is applied to the first and second parts via the set of electrodes, and the parts are heated via the electrodes to form a joint between the parts. A welded assembly includes metallic first and second parts welded together. The second part may have a faying surface defining a number of grooves separated by raised portions. The faying surfaces of the parts may be disposed at 10-80 degree angles with respect to a first part axis (and/or a welding pressure axis).
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公开(公告)号：US20200246917A1
公开(公告)日：2020-08-06
申请号：US16269147
申请日：2019-02-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Sen J. Zhou
IPC: B23K26/32 , B23K26/26 , B23K26/062 , B23K26/354
Abstract: A method of laser welding a steel substrate and a ductile iron substrate is disclosed along with a laser welded assembly that may be formed by practicing the disclosed method. The disclosed laser welding method involves forming a laser weld joint between the steel and ductile iron substrates. The laser weld joint includes a fusion zone comprised of austenite ferrous alloy that has a composition derived from intermixing molten portions of the steel and ductile iron substrates as part of the laser welding process. The austenite ferrous alloy that constitutes the fusion zone of the laser weld joint has a carbon content of 2 wt % or more and a nickel equivalent of 60% or more and can be achieved without preheating the steel and ductile iron substrates prior to welding or using a filler wire to introduce a foreign metal into the molten substrate material created by the laser beam.
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公开(公告)号：US10707718B2
公开(公告)日：2020-07-07
申请号：US15442745
申请日：2017-02-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Arthur L. McGrew, Jr. , Huaxin Li , John S. Agapiou
Abstract: An electric motor includes a stator assembly and a rotor configured to rotate within the stator assembly about an axis. The stator assembly includes a stator case having a channel and a laminate steel core having a retention feature aligned with the channel of the stator case. The stator case is fixed to the laminate steel core via displacement of material of the stator case at the channel toward the laminate steel core to capture the retention feature. An electro-mechanical drive-unit employing the above-described electric motor and a method of generating a stator assembly for such an electric motor are also contemplated.
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公开(公告)号：US10662891B2
公开(公告)日：2020-05-26
申请号：US15478741
申请日：2017-04-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Daniel J Wilson , Martin S Kramer , Dale A Gerard
Abstract: An engine block, an automotive structure, and a method of coating an inner surface of an engine cylinder bore of an engine cylinder are provided. The method includes providing an inner bore substrate defining an inner surface of the engine cylinder bore, the inner bore substrate being formed of a first material. The method further includes disposing a thermal spray coating onto the inner surface of the engine cylinder bore. The thermal spray coating is formed of a second material that is different than the first material. The method also includes melting at least a portion of the thermal spray coating with a laser after performing the step of disposing the thermal spray coating onto the inner surface of the engine cylinder bore. The automotive structure and the engine block have a substrate covered by a thermal spray coating and laser remelted sections anchoring the coating to the substrate.
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