公开(公告)号：US20230019313A1

公开(公告)日：2023-01-19

申请号：US17698874

申请日：2022-03-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Leng MAO ,  Jeffrey David CAIN ,  Andrew Clay BOBEL ,  Anil K. SACHDEV ,  Dewen KONG

IPC: H01M4/38 ,  H01M4/48 ,  H01M4/583 ,  H01M4/62 ,  H01M10/0525

Abstract: The present disclosure provides a negative electrode for an electrochemical cell that cycles lithium ions. The negative electrode may include a negative electroactive material and a lithiation additive. The negative electroactive material may have a first cell voltage window. The lithiation additive may have a second cell voltage window. The second cell voltage window may be less than the first cell voltage window. When the electrochemical cell is operated in the second cell voltage window, the lithiation additive may lithiated the cell.

公开(公告)号：US20210084790A1

公开(公告)日：2021-03-18

申请号：US16575348

申请日：2019-09-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. SACHDEV ,  Chih-hung YEN ,  Venkata Prasad ATLURI

IPC: H05K7/20 ,  H05K5/03

Abstract: A cooling assembly according to various aspects of the present disclosure includes a housing, an electronic component, a dielectric coolant, and a cover. The housing includes an interior compartment having a basin region in which the electronic component and the coolant are disposed. The coolant undergoes phase change between a liquid state and a gas state. The coolant is in direct contact with the electronic component in the liquid state. The cover component extends transversely through the interior compartment and is coupled to the body. The cover component is disposed in a direction with respect to the basin region. The cover component at least partially defines a port in fluid communication with the basin region. The cover component is configured to permit flow therethrough of the dielectric coolant in the gas state in at least the direction.

公开(公告)号：US20160145731A1

公开(公告)日：2016-05-26

申请号：US14627579

申请日：2015-02-20

Applicant: GM Global Technology Operations LLC

Inventor： Anil K. SACHDEV ,  Tyson W. BROWN

IPC: C23C2/28 ,  C22C38/04 ,  C22C38/02 ,  C21D8/00 ,  C21D6/00

CPC classification number: C23C2/28 ,  C21D6/005 ,  C21D6/008 ,  C21D8/005

Abstract: Methods for press hardening galvanized, pre-treated, optionally non-annealed steel alloys are provided. The press-hardened steel alloy may have an ultimate tensile strength (UTS) of at least about 1,000 MPa and is substantially free of liquid metal embrittlement (LME). The press-hardened steel alloy may be further quenched to below room temperature. The press-hardened steel may have a multi-phase microstructure of ferrite at greater than or equal to about 1% to less than or equal to about 60% by volume and a combined volume percentage of martensite, retained austenite, and other transformation products at greater than or equal to about 40% to less than or equal to about 99%.

Abstract translation: 提供了用于冲压硬化镀锌，预处理，任选的非退火钢合金的方法。 加压硬化的钢合金的极限拉伸强度（UTS）可以至少为约1000MPa，并且基本上没有液体金属脆化（LME）。 加压硬化的钢合金可以进一步淬火至低于室温。 加压硬化钢可以具有大于或等于约1％至小于或等于约60体积％的铁素体的多相微结构，并且马氏体，残余奥氏体和其它转化产物的组合体积百分比 大于或等于约40％至小于或等于约99％。

公开(公告)号：US20240429401A1

公开(公告)日：2024-12-26

申请号：US18338554

申请日：2023-06-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Anil K. SACHDEV ,  Diptak BHATTACHARYA

IPC: H01M4/74 ,  H01M4/04 ,  H01M4/66

Abstract: A method for manufacturing a current collector for an electrode of a battery cell includes providing a wire mesh current collector including a plurality of first wires and a plurality of second wires that overlap to form a plurality of mesh joints. A diameter of the plurality of first wires and the plurality of second wires is in a range from 4 μm to 100 μm. The method includes coating the wire mesh current collector with a metal coating by immersing the wire mesh current collector in a bath including a metal salt.

公开(公告)号：US20240191318A1

公开(公告)日：2024-06-13

申请号：US18076693

申请日：2022-12-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Diptak BHATTACHARYA ,  Hassan GHASSEMI-ARMAKI ,  Andrew Clay BOBEL ,  Anil K. SACHDEV

IPC: C21D9/46 ,  B32B15/01 ,  C21D8/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

CPC classification number: C21D9/46 ,  B32B15/011 ,  C21D8/0205 ,  C21D8/0236 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008

Abstract: A gradient steel includes a first layer, a second layer near a first surface of the first layer, and a third layer near a second surface of the first layer. The first layer includes a first ferrite phase volume. The second and third layers include a second ferrite phase volume greater than the first ferrite phase volume. The gradient steel may also include a fourth layer near the second layer and a fifth layer near the third layer. The fourth and fifth layers may each include a third ferrite phase volume greater than the second ferrite phase volume. The gradient steel may also include a sixth layer near the fourth layer and a seventh layer near the fifth layer. The sixth and seventh layers may each include a fourth ferrite phase volume greater than the third ferrite phase volume.

公开(公告)号：US20240038209A1

公开(公告)日：2024-02-01

申请号：US17873278

申请日：2022-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Song HE ,  Arianna T. MORALES ,  Anil K. SACHDEV ,  Pavan Kumar PATRUNI ,  Hung-yih Isaac DU

IPC: G10K11/162 ,  B60R13/08

CPC classification number: G10K11/162 ,  B60R13/0815

Abstract: A damping panel includes a first metal and a second metal. The first metal has a first surface and a second surface opposite the first surface. The second metal portion has a third surface and a fourth surface opposite the third surface. A fixed region is where the second surface of the first metal is fixed to the third surface of the second metal. A non-fixed region is where the second surface is not fixed to the third surface. A cavity is disposed between the second surface and the third surface at the non-fixed region. A damping material is disposed on at least one of: at least a portion of the cavity on the second surface, at least a portion of the cavity on the third surface, at least a portion of the first surface, and at least a portion of the fourth surface.

公开(公告)号：US20230326444A1

公开(公告)日：2023-10-12

申请号：US17718964

申请日：2022-04-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. SACHDEV ,  Arianna T. Morales ,  Song He

IPC: G10K11/168 ,  B23P15/00

CPC classification number: G10K11/168 ,  B23P15/00

Abstract: A cover for a housing includes a cast plate-like member having a top side and a bottom side with a plurality of raised ribs on the bottom side, the plurality of raised ribs defining a plurality of spaces therebetween. A noise insulating material is provided in at least some of the plurality of spaces. A sheet metal plate is adhered to a top of the plurality of raised ribs by an adhesive.

公开(公告)号：US20230029479A1

公开(公告)日：2023-02-02

申请号：US17388799

申请日：2021-07-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew Clay BOBEL ,  Louis G. HECTOR, JR. ,  Erik Brandon GOLM ,  Charles E. JENSEN ,  Charles W. TOOHY ,  Mohamed DARSOT ,  Zachary S. MENDLA ,  Anil K. SACHDEV

IPC: B62D25/20 ,  B62D27/02 ,  B60R16/04 ,  B62D27/06 ,  B60R13/08

Abstract: A structural assembly includes a frame and a plurality of panels. The frame includes a wall that at least partially defines an interior region. The plurality of panels is disposed at least partially in the interior region and is coupled to the frame. The plurality of panels includes a first panel and a second panel. The first panel includes a first surface and a second surface opposite the first surface. The first surface defines a first plurality of depressions and the second surface defines a first plurality of protrusions complementary to the first plurality of depressions. The second panel includes a third surface and a fourth surface opposite the third surface. The third surface defines a second plurality of depressions. The fourth surface defines a second plurality of protrusions complementary to the first plurality of depressions. The first panel is coupled to the second panel.

公开(公告)号：US20240209908A1

公开(公告)日：2024-06-27

申请号：US18087217

申请日：2022-12-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Heewook LEE ,  Zhongyi LIU ,  Anil K. SACHDEV ,  Tyson Whittier BROWN ,  Ratandeep Singh KUKREJA

IPC: F16D65/10

CPC classification number: F16D65/10 ,  F16D2065/132 ,  F16D2200/0017 ,  F16D2200/003 ,  F16D2200/0039 ,  F16D2250/0046

Abstract: A brake drum having a composite structure includes a cylindrical body defining an inner friction surface and an outer surface. The cylindrical body includes a drum core comprising an Al—Si alloy, the drum core including an inner surface, and an outer surface of the drum core defining the outer surface of cylindrical body. The cylindrical body includes a thermal barrier layer comprising a thermally insulating material on the inner surface of the drum core, and a wear-resistant layer comprising an Fe—Al—Si—Zr alloy on the inner surface of the drum core over the thermal barrier layer, the wear-resistant layer defining the inner friction surface of the cylindrical body.

公开(公告)号：US20240030458A1

公开(公告)日：2024-01-25

申请号：US17872188

申请日：2022-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew Clay BOBEL ,  Louis G. HECTOR, JR. ,  Erik Brandon GOLM ,  Shaomao XU ,  Raghunathan K ,  Anil K. SACHDEV

IPC: H01M4/82 ,  H01M4/66 ,  H01M4/04

CPC classification number: H01M4/82 ,  H01M4/661 ,  H01M4/0404

Abstract: A method of making a battery current collector foil includes heat treating a foil sheet and mechanically roughening the heat treated foil sheet to create a surface roughness of between 2-4 μm. The heat treating and mechanical roughening of the foil sheet provides improved coating adhesion. One of an anode and cathode coating is then applied to the roughened, heat treated, foil sheet.