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：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：US11479304B2

公开(公告)日：2022-10-25

申请号：US16413043

申请日：2019-05-15

Applicant: GM Global Technology Operations LLC

Inventor： Hanif Muhammad ,  Louis G. Hector, Jr. ,  Mark A. Beauregard ,  Andrew C. Bobel ,  Michael J. Sigelko

IPC: B32B3/12 ,  B62D25/10 ,  B62D25/12 ,  B32B7/08 ,  B60R21/02 ,  F16F7/12 ,  B60R21/34 ,  B60R21/00

Abstract: An energy absorber for interposition between a cover and a covered object includes a generally planar matrix of cells. Each of the cells includes a plurality of generally elongate micro-elements interconnected to form a cell micro-structure, with each cell having a respective energy absorption capacity such that an energy absorption capacity of the energy absorber varies across at least one direction. The cells are configured such that impulse of an object with the cover with the energy absorber sandwiched between the cover and the covered object causes a deceleration vs. time response in the object, beginning with a generally linear rise in the deceleration to a peak deceleration within 5 ms after the beginning of the impulse event, followed by a generally nonlinear decrease in the deceleration over a period of not greater than 15 ms to a final target deceleration of not greater than 10% of the peak deceleration.

公开(公告)号：US11342545B2

公开(公告)日：2022-05-24

申请号：US16706331

申请日：2019-12-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jeffrey D. Cain ,  Andrew C. Bobel ,  Nicholas P. Pieczonka ,  Robert D. Schmidt ,  Anil K. Sachdev ,  Mark W. Verbrugge

IPC: H01M4/04 ,  H01M4/1391 ,  H01M10/0525

Abstract: The present disclosure relates to electroactive materials for use in electrodes of lithium-ion electrochemical cells and methods of making the same, for example, methods for lithiating electroactive materials. A method of lithiating an electroactive material may include dispersing an electroactive material precursor within a room-temperature electrolyte that includes a lithium-based salt and contacting the electrolyte mixture and a lithium source so as to cause the lithium source to ionize and form lithium ions. The lithium ions may react with the electroactive material precursor to form a fully lithiated electroactive material (e.g., greater than 70% of total lithiation). The method further includes, in certain aspects, electrochemically discharging the fully lithiated electroactive material to form a lithiated electroactive material having an optimized lithiation state (e.g., less than or equal to about 40% of a first lithiation state of the fully lithiated electroactive material).

公开(公告)号：US20210408517A1

公开(公告)日：2021-12-30

申请号：US16912150

申请日：2020-06-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew C. Bobel ,  Anil K. Sachdev ,  Jeffrey D. Cain ,  Leng Mao

IPC: H01M4/04 ,  H01M10/0525 ,  H01M4/46 ,  H01M4/38

Abstract: A method for making a pre-lithiated electrode for a lithium ion battery cell, a method for making a battery with a pre-lithiated electrode, and an electric vehicle with a pre-lithiated electrode are provided. An exemplary method for making a pre-lithiated electrode for a lithium ion battery cell includes electrochemically connecting a magnesium-lithium alloy to the electrode. Further, the method includes pre-lithiating the electrode by transferring lithium ions from the magnesium-lithium alloy to the electrode. Also, the method includes electrochemically disconnecting the magnesium-lithium alloy from the electrode.

公开(公告)号：US20210316996A9

公开(公告)日：2021-10-14

申请号：US16428993

申请日：2019-06-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mahmoud Abd Elhamid ,  Andrew C. Bobel ,  Anil K. Sachdev ,  Mark W. Verbrugge ,  Nicholas P. Pieczonka ,  James R. Salvador

IPC: C01B33/021 ,  C01B33/037

Abstract: Systems, methods and compositions to produce fine powders are described. These include forming a hypereutectic melt including a target material, a sacrificial-matrix material, and an impurity, rapidly cooling the hypereutectic melt to form a hypereutectic alloy having a first phase and a second phase, annealing the hypereutectic alloy to alter a morphology of the target material to thereby produce target particles, and removing the sacrificial matrix to thereby produce a fine powder of the target particles. The first phase is defined by the target material and the second phase is defined by the sacrificial-matrix material. The sacrificial-matrix material forms a sacrificial matrix having the target material dispersed therethrough.

公开(公告)号：US11011742B2

公开(公告)日：2021-05-18

申请号：US16435760

申请日：2019-06-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. Sachdev ,  Andrew C. Bobel ,  James R. Salvador ,  Mark W. Verbrugge

IPC: H01M4/134 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/62 ,  H01M4/72 ,  H01M4/66 ,  H01M4/02 ,  H01M4/74

Abstract: Anodes, and battery cells utilizing the same, include silicon particles embedded within a copper matrix, wherein the anode includes 40 at. % to 75 at. % silicon. The anode can include about 21 at. % to about 67 at. % silicon particles. The copper matrix can include pure copper and/or one or more copper-silicon intermetallic phases. The copper matrix can further include one or more of nickel, gold, silver, beryllium, and zinc. The silicon particles embedded in the copper matrix can have an average particle diameter less than 10 μm. The non-surfacial silicon particles embedded in the copper matrix can be at least 99 at. % pure. The anode can be a woven mesh of ribbons or a planar sheet.

公开(公告)号：US10982306B2

公开(公告)日：2021-04-20

申请号：US15797034

申请日：2017-10-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew C. Bobel ,  Anil K. Sachdev ,  Tyson W. Brown

IPC: C22C38/16 ,  B22F3/105 ,  C22C33/02 ,  B33Y10/00 ,  B33Y70/00 ,  B23K26/342 ,  B22F9/08 ,  B23K15/00 ,  C21D6/00 ,  C22C38/12

Abstract: A powder material for an additive manufacturing process and a method of manufacturing a three-dimensional article via an additive manufacturing process. The powder material comprises an iron-based alloy including alloying elements of carbon (C) and copper (Cu). The iron-based alloy may be formulated to achieve a precipitation strengthened microstructure comprising a lath martensite matrix phase and a Cu precipitate phase. The iron-based alloy may have a Cu weight fraction and a nickel (Ni) weight fraction, and the Ni weight fraction may be less than the Cu weight fraction of the iron-based alloy.

公开(公告)号：US20190169716A1

公开(公告)日：2019-06-06

申请号：US15828827

申请日：2017-12-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qigui Wang ,  Michael J. Walker ,  Andrew C. Bobel

IPC: C22C21/04 ,  C22F1/043 ,  B22D11/00 ,  B22D15/00 ,  F02F1/24

Abstract: Aluminum alloys having improved high temperature mechanical properties are provided. An aluminum alloy suitable for sand casting, permanent mold casting, or semi-permanent mold casting includes about 3 to about 12 weight percent silicon; about 0.5 to about 2.0 weight percent copper; about 0.2 to about 0.6 weight percent magnesium; about 0 to about 0.5 weight percent chromium; about 0 to about 0.3 weight percent each of zirconium, vanadium, cobalt, and barium; about 0 to about 0.3 weight percent each of strontium, sodium, and titanium; about 0 to about 0.5 weight percent each of iron manganese, and zinc; and about 0.0.1 weight percent of other trace elements. Also disclosed is a semi permanent mold cast article, such as an engine cylinder head.