公开(公告)号：US20250062391A1

公开(公告)日：2025-02-20

申请号：US18450601

申请日：2023-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed Nagy ,  Caleb Reese

IPC: H01M10/0525 ,  H01M4/1391

Abstract: Lithium ion cells and methods for producing such cells are provided. The lithium ion cells include a lithium metal anode that includes a current collector and a lithium metal layer, a cathode having a lithium intercalation material, and a solid-state electrolyte (SSE) having a lithiophilic layer on a surface of the SSE. The lithiophilic includes a metal oxide. In one example, the lithiophilic layer is formed by depositing a non-aqueous precursor solution on the surface of a solid-state electrolyte (SSE), wherein the precursor solution includes a metallic nitrate, and decomposing the precursor solution to form the lithiophilic layer.

公开(公告)号：US20240250234A1

公开(公告)日：2024-07-25

申请号：US18100911

申请日：2023-01-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Caleb Reese ,  Sayed Youssef Sayed Nagy ,  Joel G. Toner ,  Jeffrey David Cain ,  Xingcheng Xiao

IPC: H01M4/04 ,  H01M4/13 ,  H01M4/38

CPC classification number: H01M4/0435 ,  H01M4/0407 ,  H01M4/13 ,  H01M4/382

Abstract: A pressing machine includes pressing devices, actuators and a control module. At least one of the pressing devices includes a surface having a fluoropolymer material. At least one of the actuators is configured to adjust pressure of the pressing devices on one or more lithium foils, such that the surface presses against one of the one or more lithium foils to form a protective layer. The control module is configured to control the at least one of the actuators to adjust a parameter to control at least one of thickness of the protective layer and fluoride content of the protective layer.

公开(公告)号：US20240133962A1

公开(公告)日：2024-04-25

申请号：US17971774

申请日：2022-10-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin JAMES ,  Megan E. Mcgovern ,  Dmitriy Bruder ,  Whitney Ann Poling ,  Erik Damon Huemiller ,  Shaomao Xu ,  Caleb Reese

IPC: G01R31/385 ,  H01M10/0525

CPC classification number: G01R31/3865 ,  H01M10/0525

Abstract: A method for validating non-destructive, electromagnetic methods in atmospheric conditions of a battery cell intended to include a lithium metal layer includes selecting a lithium mimic metal layer to replace the lithium metal layer; and creating a mock-up sample including one or more layers of the battery cell. One or more layers comprise the lithium mimic metal layer. The method includes performing electromagnetic testing of the mock-up sample.

公开(公告)号：US12123919B2

公开(公告)日：2024-10-22

申请号：US17971774

申请日：2022-10-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin James ,  Megan E. McGovern ,  Dmitriy Bruder ,  Whitney Ann Poling ,  Erik Damon Huemiller ,  Shaomao Xu ,  Caleb Reese

IPC: G01R31/30 ,  G01R31/385 ,  H01M10/0525

CPC classification number: G01R31/3865 ,  H01M10/0525

Abstract: A method for validating non-destructive, electromagnetic methods in atmospheric conditions of a battery cell intended to include a lithium metal layer includes selecting a lithium mimic metal layer to replace the lithium metal layer; and creating a mock-up sample including one or more layers of the battery cell. One or more layers comprise the lithium mimic metal layer. The method includes performing electromagnetic testing of the mock-up sample.

公开(公告)号：US20240322116A1

公开(公告)日：2024-09-26

申请号：US18125824

申请日：2023-03-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Caleb Reese ,  Yoojin Kim

IPC: H01M4/04 ,  C25D3/42 ,  C25D9/08

CPC classification number: H01M4/045 ,  C25D3/42 ,  C25D9/08 ,  H01M4/0435

Abstract: A method for manufacturing a battery cell includes connecting a current collector to a working electrode; connecting a zinc metal portion to a counter electrode; immersing the current collector and a portion of the working electrode in a liquid; immersing the zinc metal portion and a portion of the counter electrode in the liquid; supplying molecular oxygen into the liquid; and electrochemically coating the current collector with a zinc oxide layer.

公开(公告)号：US20240230773A9

公开(公告)日：2024-07-11

申请号：US17971774

申请日：2022-10-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin JAMES ,  Megan E. Mcgovern ,  Dmitriy Bruder ,  Whitney Ann Poling ,  Erik Damon Huemiller ,  Shaomao Xu ,  Caleb Reese

IPC: G01R31/385 ,  H01M10/0525

CPC classification number: G01R31/3865 ,  H01M10/0525

Abstract: A method for validating non-destructive, electromagnetic methods in atmospheric conditions of a battery cell intended to include a lithium metal layer includes selecting a lithium mimic metal layer to replace the lithium metal layer; and creating a mock-up sample including one or more layers of the battery cell. One or more layers comprise the lithium mimic metal layer. The method includes performing electromagnetic testing of the mock-up sample.

公开(公告)号：US20250105269A1

公开(公告)日：2025-03-27

申请号：US18473799

申请日：2023-09-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Diptak Bhattacharya ,  Sayed Youssef Sayed Nagy ,  Caleb Reese ,  Yoojin Kim ,  Shaomao Xu ,  Hassan Ghassemi-Armaki

IPC: H01M4/40 ,  C22C1/02 ,  C22C24/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/42 ,  H01M4/74 ,  H01M10/052

Abstract: Methods for fabricating an anode, methods for fabricating a battery, and lithium batteries are disclosed. A method for fabricating an anode includes forming a melt comprising lithium and a surface tension reduction agent, wherein the surface tension reduction agent is selected from the group consisting of silver, tin, gallium, indium, zinc, and combinations thereof; and contacting an anode current collector with the melt, wherein a layer of the melt wets onto the anode current collector to form the anode as a lithium alloy.

公开(公告)号：US20250087672A1

公开(公告)日：2025-03-13

申请号：US18464854

申请日：2023-09-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Caleb Reese ,  Diptak Bhattacharya ,  Anil K. Sachdev

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/134 ,  H01M4/136 ,  H01M4/38 ,  H01M4/40 ,  H01M4/58 ,  H01M4/66 ,  H01M10/0585

Abstract: A battery cell includes a battery cell stack including A anode electrodes including an anode active material layer arranged adjacent to an anode current collector; C cathode electrodes including a cathode active material layer arranged adjacent to a cathode current collector; and S separators arranged between the A anode electrodes and the C cathode electrodes. The anode active material layer of the A anode electrodes includes a lithium metal layer and a lithium alloy layer comprising an alloy of lithium and a lithiophilic metal.

公开(公告)号：US20250087660A1

公开(公告)日：2025-03-13

申请号：US18462611

申请日：2023-09-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Diptak Bhattacharya ,  Caleb Reese ,  Shaomao Xu ,  Anil K. Sachdev

IPC: H01M4/04 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/66 ,  H01M4/74

Abstract: A method for manufacturing an anode electrode for a battery cell includes providing a current collector; and forming a layer on the current collector to create a coated current collector. The layer includes one of a metal and a metal oxide that is not miscible in molten lithium. The method includes immersing the coated current collector in molten lithium to coat the coated current collector.

公开(公告)号：US20250062362A1

公开(公告)日：2025-02-20

申请号：US18450617

申请日：2023-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed Nagy ,  Caleb Reese ,  Anil K. Sachdev ,  Anita Li ,  Xiaosong Huang

IPC: H01M4/66 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0585

Abstract: Lithium-ion cells and methods for producing such cells are provided. The lithium-ion cells include a lithium metal anode (LMA), a cathode, and an electrolyte between the LMA and the cathode. The LMA includes a current collector and a deformable layer on a surface of the current collector. The deformable layer is lithium-ion conductive and includes a polymeric material. The cathode has a lithium intercalation material. In some examples, lithium metal is plated on the deformable layer during charge of the lithium-ion cell to define a plated lithium layer between the deformable layer and the electrolyte, and a solid electrolyte interphase (SEI) layer forms on the plated lithium layer separating the plated lithium layer from the electrolyte.