公开(公告)号：US20250062403A1

公开(公告)日：2025-02-20

申请号：US18474545

申请日：2023-09-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Haijing Liu ,  Qili Su

IPC: H01M10/0565 ,  H01M10/0525

Abstract: A polymeric gel electrolyte for an electrochemical cell, such as a solid-state battery, is provided herein as well an electrochemical cell including the polymeric gel electrolyte. The polymeric gel electrolyte includes a lithium salt comprising sulfur and fluorine, a lithium salt comprising boron, a fluorinated plasticizer, a non-fluorinated plasticizer, and a polymeric host. A w/w ratio of the fluorinated plasticizer to the non-fluorinated plasticizer is 9:1 to 1:9.

公开(公告)号：US20250027223A1

公开(公告)日：2025-01-23

申请号：US18354298

申请日：2023-07-18

Applicant: GM Global Technology Operations LLC

Inventor： Adam Paul Rabe ,  Jacob Alexander Rabe ,  Matthew G. Keast ,  Zhe Li

IPC: C25D9/06 ,  C25D7/10 ,  C25D21/12

Abstract: A method of forming a lubricant coating, a method of coating a bearing surface with a lubricant coating, and a vehicle including a bearing including a lubricant coating. A substrate, such as a bearing, including a surface and an electrode are immersed in an electrolyte bath. The electrolyte bath includes an aqueous electrolyte solution including sodium metabisulfite (Na2S2O5), sodium molybdate (Na2MoO4·2H2O), a pH modifier, an anionic surfactant, and water. A first pulsed direct current is applied through the aqueous electrolyte solution using a direct current power supply and a molybdenum disulfide (MoS2) layer is formed on the surface of the substrate.

公开(公告)号：US12113184B2

公开(公告)日：2024-10-08

申请号：US17752185

申请日：2022-05-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jing Gao ,  Brian J. Koch ,  Zhe Li ,  Alfred Zhang ,  Gayatri V. Dadheech

IPC: H01M10/04 ,  B05D1/00 ,  H01M10/48

CPC classification number: H01M10/48 ,  B05D1/005

Abstract: A method of making a reference electrode assembly for an electrochemical cell according to various aspects of the present disclosure includes providing a subassembly including a separator layer and a current collector layer coupled to the separator layer. The method further includes providing an electrode ink including an electroactive material, a binder, and a solvent. The method further includes creating a reference electrode precursor by applying an electroactive precursor layer to the current collector layer. The electroactive precursor layer covers greater than or equal to about 90% of a superficial surface area of a surface of the current collector layer. The electroactive precursor layer includes the electrode ink. The method further includes creating the reference electrode assembly by drying the electroactive precursor layer to remove at least a portion of the solvent, thereby forming an electroactive layer. The electroactive layer is solid and porous.

公开(公告)号：US20240301560A1

公开(公告)日：2024-09-12

申请号：US18175261

申请日：2023-02-27

Applicant: GM Global Technology Operations LLC

Inventor： Adam Paul Rabe ,  Zhe Li ,  Matthew George Keast ,  Jacob Alexander Rabe

IPC: C23C22/50 ,  C23C22/78

CPC classification number: C23C22/50 ,  C23C22/78

Abstract: A method of coating an automotive part for an electric drive unit is provided. The method comprises providing a part comprising a body having an outer surface and introducing the part in an aqueous coating solution comprising sodium metabisulfite and citric acid to form residual oxides on the outer surface defining a sample-water interface. The method further comprises emitting ultrasonic waves in the coating solution to generate acoustic cavitation activity at the sample-water interface and continuously form oxygen and hydrogen species. The citric acid arranged to activate the outer surface to allow for the reaction with the oxygen and hydrogen species forming iron hydroxide. The sodium metabisulfite arranged to react with the iron hydroxide generating iron oxysulfide such that the iron oxysulfide reacts with the oxygen and hydrogen species to produce iron oxide and iron sulfide on the outer surface defining a black oxide coating.

公开(公告)号：US11967722B2

公开(公告)日：2024-04-23

申请号：US17560673

申请日：2021-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili Su ,  Zhe Li ,  Meiyuan Wu ,  Mengyan Hou ,  Haijing Liu

IPC: H01M4/78 ,  H01M4/02

CPC classification number: H01M4/78 ,  H01M2004/029

Abstract: A battery includes positive and negative current collectors and a plurality of bipolar electrodes arranged in a stack between the positive and negative current collectors. The positive and negative current collectors and the stack of the plurality of bipolar electrodes are folded in an S-shape.

公开(公告)号：US11890672B1

公开(公告)日：2024-02-06

申请号：US18161443

申请日：2023-01-30

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Li ,  Qigui Wang ,  Wenying Yang ,  Daniel J. Wilson ,  Huaxin Li

IPC: B22D17/00 ,  B22D21/00 ,  B22D27/02 ,  B22D17/02

CPC classification number: B22D17/02 ,  B22D21/007 ,  B22D27/02

Abstract: A method of making a die cast part having high wear resistance is provided. The method comprises providing a mold and an insert pin. The mold comprises an interior surface defining a cavity. The mold comprises a bore formed through the interior surface. The insert pin has a magnetic core having a magnetic field and a barrier disposed about the magnetic core. The insert pin is disposed in the bore and extends into the cavity. The method comprises filling the mold with metallic material such that the metallic material is in contact with the insert pin to define a contact layer. The method comprises modifying iron content within the contact layer with the magnetic field to define an outer layer and an inner layer formed between the outer layer and the insert pin. The inner layer has 3-5 wt % Fe and the outer layer has 0.01-0.5 wt % Fe.

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：US20220181710A1

公开(公告)日：2022-06-09

申请号：US17542294

申请日：2021-12-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Yong Lu ,  Haijing Liu

IPC: H01M10/42 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/587

Abstract: The present disclosure relates to capacitor-assisted lithium-sulfur batteries including capacitor electrodes and/or capacitor-based interlayers. For example, a capacitor-assisted lithium-sulfur battery that includes two or more cells is provided. Each cell includes at least two electrodes selected from: a first electrode including a sulfur-containing electroactive material; a second electrode including a negative electroactive material; a first capacitor electrode including a positive capacitor active material; and a second capacitor electrode including a negative capacitor active material. Each electrode may be disposed adjacent to a surface of a current collector and a separator may be disposed between adjacent electrodes so as to provide electrical separation. One of the two or more cells includes the first electrode and the second electrode, and no cell includes both the first electrode and the first capacitor electrode or both the second electrode and the second capacitor electrode. Each cell may further include at least one capacitor-based interlayer.

公开(公告)号：US20220010874A1

公开(公告)日：2022-01-13

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 ,  F04C14/18 ,  F04C2/10 ,  F04C2/08

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：US11205798B2

公开(公告)日：2021-12-21

申请号：US16048427

申请日：2018-07-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Dave G. Rich ,  Haijing Liu ,  Dewen Kong ,  Sherman H. Zeng

IPC: H01M10/0525 ,  H01M10/0585 ,  H01M10/056 ,  H01M10/0562 ,  H01G11/06 ,  H01G11/56 ,  H01G11/28

Abstract: A capacitor-assisted, solid-state lithium-ion battery is formed by replacing at least one of the electrodes of the battery with a capacitor electrode of suitable particulate composition for the replaced battery particulate anode or cathode material. The solid-state electrodes typically contain solid-state electrode material and are separated with solid-state electrode material. In another embodiment the capacitor anode or cathode particles may be mixed with lithium-ion battery anode or cathode particles respectively. Preferably, the battery comprises at least two positively-charged electrodes and two negatively-charged electrodes, and the location and compositions of the capacitor material electrode(s) may be selected to provide a desired combination of energy and power.