公开(公告)号：US20250096226A1

公开(公告)日：2025-03-20

申请号：US18469759

申请日：2023-09-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel Ryan ,  Xiaosong Huang ,  Joel G. Toner ,  Anil K. Sachdev ,  Nicole Ellison

IPC: H01M4/04 ,  H01M4/02

Abstract: Aspects of the disclosure include a roll press design for manufacturing tailored porosity electrodes. An exemplary roll press includes a top roller and a bottom roller separated from the top roller by a gap. At least one of the top roller and the bottom roller includes a raised region and an indented region. The raised region includes a first radius and the indented region includes a second radius less than the first radius. The gap includes a distance selected to accommodate a current collector. The current collector includes a bare portion and a coated portion having thereon an electrode material of a first thickness. A difference between the first radius and the second radius is selected, based on the first thickness, to evenly distribute stress across the bare portion and the coated portion of the current collector during a calendering process for forming a tailored porosity electrode.

公开(公告)号：US12249309B2

公开(公告)日：2025-03-11

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

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：US12040479B2

公开(公告)日：2024-07-16

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: H01M4/00 ,  C30B7/12 ,  C30B7/14 ,  C30B19/10 ,  C30B28/04 ,  C30B29/02 ,  C30B30/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/134 ,  C30B7/12 ,  C30B7/14 ,  C30B19/103 ,  C30B28/04 ,  C30B29/02 ,  C30B30/02 ,  H01M4/0404 ,  H01M4/0452 ,  H01M4/1395 ,  H01M4/382 ,  H01M10/0525 ,  H01M2004/027

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：US20240234695A9

公开(公告)日：2024-07-11

申请号：US17971301

申请日：2022-10-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jeffrey David CAIN ,  Nicholas Paul William PIECZONKA ,  Anil K. Sachdev

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/58

CPC classification number: H01M4/366 ,  H01M4/0459 ,  H01M4/58 ,  H01M2004/021

Abstract: An electroactive material for an electrochemical cell that cycles lithium ions is provided. The electroactive material includes a plurality of atomic layers and a plurality of cations disposed between the atomic layers. The plurality of atomic layers includes an atom selected from the group consisting of: silicon, germanium, boron, and combinations thereof. The plurality of cations is selected from the group consisting of: calcium, magnesium, zinc, copper, nickel, potassium, sodium, and combinations thereof. A ratio of the cations to atoms that define the atomic layer may be less than about 1:2.

公开(公告)号：US20230368235A1

公开(公告)日：2023-11-16

申请号：US17741546

申请日：2022-05-11

Applicant: GM Global Technology Operations LLC

Inventor： Aravind Gangumalla ,  Anil K. Sachdev ,  Anil Bika ,  Nathan Thompson ,  Ramesh Sethu

IPC: G06Q30/02 ,  B60L53/66 ,  B60L53/64

CPC classification number: G06Q30/0208 ,  B60L53/665 ,  B60L53/64 ,  G06Q30/0265

Abstract: A method for using idle computing power of an electric vehicle includes sending the computing tasks and the task rates for performing the computing tasks to a vehicle controller of the electric vehicle and receiving an acceptance signal from the vehicle controller. The acceptance signal is indicative that the vehicle controller accepted to perform the computing tasks. The method further includes commanding a charging infrastructure to supply electrical power the electric vehicle while the vehicle controller performs the computing tasks.

公开(公告)号：US11817748B2

公开(公告)日：2023-11-14

申请号：US16944578

申请日：2020-07-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alireza Fatemi ,  Anil K. Sachdev ,  Thomas W. Nehl

IPC: H02K1/30 ,  H02K1/02 ,  H02K1/27 ,  H02K15/03 ,  H02K7/00 ,  H02K1/276

CPC classification number: H02K1/30 ,  H02K1/02 ,  H02K1/276 ,  H02K7/006 ,  H02K15/03

Abstract: A method for constructing a lamination for a rotary electric machine includes forming an annular lamination from a ferrous core material having a first relative magnetic permeability. The lamination defines through-openings, e.g., for permanent magnets or conductors. Peripheral bridges of the core material extend between the through-openings and an outer or inner diameter surface of the lamination. The method includes diffusing an alloy material having a second relative magnetic permeability into the bridges to form austenitic bridges, with the second relative magnetic permeability being less than the first relative magnetic permeability. A rotary electric machine includes a stator and rotor. A vehicle includes a rotary electric machine connected to the battery pack and to road wheels, and having a rotor and/or a stator constructed in accordance with the method.

公开(公告)号：US20230299404A1

公开(公告)日：2023-09-21

申请号：US17695070

申请日：2022-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew C. Bobel ,  Anil K. Sachdev ,  Patrick H. Clark ,  Pooja Suresh ,  Ran Wu ,  Jermain E. Onye ,  William Y. Chen ,  Li Yang ,  Chao Hu ,  Yunshan Liu ,  Kuo Sun

IPC: H01M50/242 ,  H01M10/658 ,  H01M50/209

CPC classification number: H01M50/242 ,  H01M10/658 ,  H01M50/209

Abstract: A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.

公开(公告)号：US11614158B2

公开(公告)日：2023-03-28

申请号：US16927172

申请日：2020-07-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert Parrish ,  Wenying Yang ,  Zhe Li ,  Abir R. Das ,  Chad M. Huls ,  Anil K. Sachdev

IPC: F16H57/04 ,  F04C2/08 ,  F04C2/10 ,  F04C14/18

Abstract: A hydraulic gerotor pump for an automatic transmission may comprise a housing and a gear set rotatably disposed within the housing. The gear set may comprise an inner gear and an outer gear having radially opposed intermeshing teeth that together define a plurality of circumferentially disposed variable volume pumping chambers therebetween. The housing may be made of a first aluminum-based material, and the inner gear and the outer gear of the gear set may be made of a second aluminum-based material. The linear coefficient of thermal expansion of the first aluminum-based material may be substantially the same as that of the second aluminum-based material.

公开(公告)号：US11549626B2

公开(公告)日：2023-01-10

申请号：US16443017

申请日：2019-06-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. Sachdev ,  Arianna T. Morales ,  Jason Mazza ,  Andrew C. Bobel

IPC: F16L37/06 ,  B23P15/26 ,  F16L55/165 ,  B23K20/12

Abstract: In an embodiment, a method of forming a cooling plate, comprises laser welding a plurality of weld lines to physically connect a first substrate and a second substrate wherein the plurality of weld lines forms an inflatable track; and inflating the inflatable track with an inflation fluid to form a cooling channel in the cooling plate. In another embodiment, the cooling plate can comprise a first substrate and a second substrate and a plurality of weld lines can form a fluid tight seal for a cooling channel located therebetween.

公开(公告)号：US11548317B2

公开(公告)日：2023-01-10

申请号：US16903928

申请日：2020-06-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Henry Zhan ,  Jianfeng Wang ,  Congjie Wang ,  Ming Liu ,  Anil K. Sachdev

IPC: F16D65/12 ,  B60B27/00 ,  B60B3/10 ,  B60B3/00

Abstract: A brake rotor includes a friction portion, a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, and a nose portion which extends axially from the top face of the hat portion away from the friction portion.