公开(公告)号：US20150299818A1

公开(公告)日：2015-10-22

申请号：US14256045

申请日：2014-04-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. Sachdev ,  John E. Carsley ,  Stuart J. Brown ,  Louis J. Conrad

IPC: C21D8/02 ,  C22F1/00 ,  C21D9/46 ,  B60R19/03 ,  C22C21/00 ,  C22C38/00 ,  B62D29/00 ,  C22F1/04 ,  C21D1/18

CPC classification number: C21D8/0263 ,  B62D29/007 ,  C21D1/18 ,  C21D1/673 ,  C21D7/02 ,  C21D7/13 ,  C21D9/46 ,  C21D9/52 ,  C21D2211/002 ,  C21D2211/008 ,  C22C21/00 ,  C22C21/12 ,  C22C38/00 ,  C22F1/002 ,  C22F1/04

Abstract: A thermal-assisted method deforms plastically a high-strength material using a high-intensive heat source. The high-strength material may be a cold-rolled sheet aluminum of strength greater than 300 megapascal (MPa) or a cold-rolled sheet steel of strength greater than 1000 MPa. The cold-rolled sheet metal is heated just before bending to a temperature near or above the critical temperature for the material and is followed by rapid quenching after bending.

Abstract translation: 热辅助方法使用高密度热源塑造高强度材料。 高强度材料可以是强度大于300兆帕（MPa）的冷轧板铝或强度大于1000MPa的冷轧钢板。 将冷轧金属板在弯曲前被加热到接近或高于材料的临界温度的温度，然后在弯曲之后快速淬火。

公开(公告)号：US20140106220A1

公开(公告)日：2014-04-17

申请号：US14105241

申请日：2013-12-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao ,  Anil K. Sachdev ,  Mark W. Verbrugge ,  Ping Liu ,  John S. Wang

IPC: H01M4/36

CPC classification number: H01M4/364 ,  B82Y30/00 ,  H01B1/04 ,  H01B1/08 ,  H01M4/0423 ,  H01M4/0426 ,  H01M4/0483 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M10/052 ,  Y02E60/122

Abstract: A composite of silicon and tin is prepared as a negative electrode composition with increased lithium insertion capacity and durability for use with a metal current collector in cells of a lithium-ion battery or a lithium-sulfur battery. This negative electrode material is formed such that the silicon is present as a distinct amorphous phase in a matrix phase of crystalline tin. While the tin phase provides electron conductivity, both phases accommodate the insertion and extraction of lithium in the operation of the cell and both phases interact in minimizing mechanical damage to the material as the cell experiences repeated charge and discharge cycles. In general, roughly equal atomic proportions of the tin and silicon are used in forming the phase separated composite electrode material.

Abstract translation: 制备硅和锡的复合物作为具有增加的锂插入能力和耐久性的负极组合物，其与锂离子电池或锂硫电池的电池中的金属集流体一起使用。 这种负极材料形成为使得硅在结晶锡的基质相中作为不同的非晶相存在。 当锡相提供电子传导性时，两相在电池操作中容纳锂的插入和提取，并且当电池经历重复充电和放电循环时，两相相互作用以最小化对材料的机械损伤。 通常，在形成相分离的复合电极材料中使用大致相等的锡和硅原子比例。

公开(公告)号：US20250167350A1

公开(公告)日：2025-05-22

申请号：US18516129

申请日：2023-11-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anthony Michael COPPOLA ,  Anil K. Sachdev ,  Mohammad Hamza Kirmani ,  Ryan Patrick Hickey

IPC: H01M10/6569 ,  H01M10/613 ,  H01M10/643 ,  H01M10/653 ,  H01M10/6552 ,  H01M10/6554 ,  H01M50/213 ,  H01M50/291

Abstract: A passive cooling system for battery cells includes a housing defining a cavity with a plurality of battery cells disposed in the cavity. Each of the battery cells is surrounded by a porous media and a phase change material is disposed within spaces defined by the porous media. A cold plate is disposed at a top of the cavity to cool the phase change material that is vaporized and change the vapor to a liquid.

公开(公告)号：US20250158187A1

公开(公告)日：2025-05-15

申请号：US18508877

申请日：2023-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Diptak Bhattacharya ,  Derek F. Lahr ,  Xiaoling Chen ,  Anil K. Sachdev ,  Thomas A. Barth ,  Christopher P. Scolaro ,  Andrew C. Bobel ,  Ryan P. Hickey

IPC: H01M50/209 ,  H01M10/613 ,  H01M10/647 ,  H01M10/6554 ,  H01M50/249 ,  H01M50/358 ,  H01M50/507

Abstract: Presented are battery assemblies containing long prismatic cells with interleaved gas manifolds and electrical busbars, methods for making/using such battery assemblies, and vehicles equipped with such battery assemblies. A prismatic battery assembly includes multiple stacks of prismatic battery cells that are located inside of and extend longitudinally across a rigid and insulated assembly housing. Each battery cell includes a prism-shaped cell can that contains one or more electrochemical cells. Located at one or both lateral ends of each cell can are a cell vent and a pair of electrical terminals. Electrically connected to the battery cell terminals is an electrical busbar that is located inside the assembly housing, either between the cell stacks or laterally outboard of the cell stacks. Fluidly connected to the battery cell vents is a gas manifold that is located inside the assembly housing, either between the cell stacks or laterally outboard of the cell stacks.

公开(公告)号：US11873724B2

公开(公告)日：2024-01-16

申请号：US16943070

申请日：2020-07-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jeremy R. Kirklin ,  Carnell E. Williams ,  Anil K. Sachdev

IPC: F01D25/00 ,  C22F1/047 ,  C22F1/053 ,  C22F1/057 ,  C22C21/08 ,  C22C21/16 ,  C22C21/10 ,  F02B39/00 ,  F01D5/28 ,  B05D5/08

CPC classification number: F01D25/007 ,  B05D5/083 ,  C22C21/08 ,  C22C21/10 ,  C22C21/16 ,  C22F1/047 ,  C22F1/053 ,  C22F1/057 ,  F01D5/288 ,  F01D25/005 ,  F02B39/00 ,  F05D2220/40 ,  F05D2230/90 ,  F05D2240/24 ,  F05D2300/173 ,  F05D2300/43 ,  F05D2300/432

Abstract: A compressor assembly may include a compressor housing and a compressor impeller disposed within the compressor housing. The compressor housing may have an internal aerodynamic surface that defines a circumferentially extending volute, and the compressor impeller may have an external aerodynamic surface that faces toward at least a portion of the internal aerodynamic surface of the compressor housing. A nonstick coating may be formed on the internal aerodynamic surface of the compressor housing or on the external aerodynamic surface of the compressor impeller. The nonstick coating may prevent foreign material introduced into the compressor assembly from collecting on the internal aerodynamic surface of the compressor housing or on the external aerodynamic surface of the compressor impeller.

公开(公告)号：US11766716B2

公开(公告)日：2023-09-26

申请号：US17568047

申请日：2022-01-04

Applicant: GM Global Technology Operations LLC

Inventor： Steven L. Burkholder ,  Thomas W. Gustafson ,  Qigui Wang ,  Anil K. Sachdev

IPC: B22D27/04 ,  B22D30/00

CPC classification number: B22D27/04 ,  B22D30/00

Abstract: A system and method of increasing a cooling rate of a metal sand casting during solidification. The system includes a 3-D printed manufactured sand mold defining a mold cavity, a coolant inlet port extending into the manufactured sand mold, a myriad of coolant passageways surrounding a portion of the mold cavity, and a coolant outlet port in fluid communication with the coolant passageways. The system further includes a coolant vapor extraction system having a collection manifold in fluid connection with the outlet port of the sand mold. A molten metal is poured into the mold cavity and a liquid coolant is introduced into the sand mold. The liquid coolant changes state into a gas phase as it permeates through the sand mold, thereby increasing the cooling rate of the casting. The liquid coolant may be that of a liquid nitrogen.

公开(公告)号：US20230207788A1

公开(公告)日：2023-06-29

申请号：US17560454

申请日：2021-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wai Ping Gloria Tam ,  Anil K. Sachdev

IPC: H01M4/38 ,  H01M4/04 ,  H01M4/36

CPC classification number: H01M4/382 ,  H01M4/0404 ,  H01M4/366

Abstract: A method for laminating a lithium metal anode is provided. The method includes procuring a current collector, including a portion of the current collector to be covered with a lithium foil lamination, and procuring a plurality of lithium foil portions. The plurality of lithium foil portions each include a length configured for matching one of a length of the portion of the current collector to be covered with the lithium foil lamination or a width of the portion of the current collector to be covered with the lithium foil lamination. The method further includes disposing the plurality of lithium foil portions upon the portion of the current collector to be covered with the lithium foil lamination, wherein the plurality of lithium foil portions is arranged side-by-side, and applying heat and pressure to join the plurality of lithium foil portions to the current collector.

公开(公告)号：US20230059113A1

公开(公告)日：2023-02-23

申请号：US17407884

申请日：2021-08-20

Applicant: GM Global Technology Operations LLC

Inventor： Jianghuai Yang ,  Qigui Wang ,  Anil K. Sachdev

IPC: B22D29/04 ,  C22C38/44 ,  C22C38/42 ,  C22C38/50 ,  C22C38/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/00

Abstract: A cast steel alloy for an engine of a vehicle is provided. The cast steel alloy comprises 0.29 to 0.65 weight percent (wt %) carbon, 0.40 to 0.80 wt % silicon, 0.6 to 1.5 wt % manganese, up to 0.03 wt % phosphorus, 0.04 to 0.07 wt % sulfur, 0.8 to 1.4 wt % chromium, 0.2 to 0.6 wt % nickel, 0.15 to 0.55 wt % molybdenum, 0.25 to 2.0 wt % copper, up to 0.03 wt % titanium, 0.07 to 0.17 wt % vanadium, 0.02 to 0.06 wt % aluminum, up to 0.03 wt % nitrogen (N), and 0.01 to 0.06 wt % of at least one of cerium (Ce) and lanthanum. The cast steel alloy has unexpected and unconventional results such as reduced ferrite and enhanced strengths.

公开(公告)号：US20220416220A1

公开(公告)日：2022-12-29

申请号：US17359817

申请日：2021-06-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew C. Bobel ,  Louis G. Hector, JR. ,  Anil K. Sachdev ,  Jeffrey D. Cain

IPC: H01M4/134 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/1395 ,  H01M4/38 ,  C30B7/12 ,  C30B7/14 ,  C30B19/10 ,  C30B29/02 ,  C30B30/02 ,  C30B28/04

Abstract: A lithium metal negative electrode for an electrochemical cell for a secondary lithium metal battery includes a polycrystalline metal substrate having a major facing surface with a defined crystallographic texture. An epitaxial lithium metal layer is formed on the major facing surface of the polycrystalline metal substrate. The epitaxial lithium metal layer exhibits a predominant crystal orientation. The predominant crystal orientation of the epitaxial lithium metal layer is derived from the defined crystallographic texture of the major facing surface of the polycrystalline metal substrate.

公开(公告)号：US20220203468A1

公开(公告)日：2022-06-30

申请号：US17134986

申请日：2020-12-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lokesh Choudhary ,  Qigui Wang ,  Tiruttani Munikamal ,  David A. Wulbrecht ,  Gregory Melekian ,  Anil K. Sachdev

IPC: B23G1/18

Abstract: A method of manufacturing a threaded hole in a workpiece includes providing the workpiece having a region with a hole. The method also includes cutting a threading for the hole. Furthermore, the method includes, independent of cutting the threading, densifying the region proximate the hole to reduce material porosity in the region.