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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.
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12.发明授权公开(公告)号：US12104258B2
公开(公告)日：2024-10-01
申请号：US17179547
申请日：2021-02-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael P. Balogh , Jin Liu , Ryan C. Sekol , Shaomao Xu , Erik D. Huemiller
IPC: B22D11/06 , C23C6/00 , H01M4/04 , H01M4/38 , H01M4/66 , H01M10/0525 , H01M10/44 , H01M4/1395
CPC classification number: C23C6/00 , H01M4/0404 , H01M4/0435 , H01M4/0485 , H01M4/382 , H01M4/667 , H01M10/0525 , H01M10/44 , H01M4/1395 , H01M2220/20
Abstract: Presented are lithium-metal electrodes for electrochemical devices, systems and methods for manufacturing lithium-metal foils, and vehicle battery packs containing battery cells with lithium-metal anodes. A method of melt spinning lithium-metal foils includes melting lithium (Li) metal stock in an actively heated vessel to form molten Li metal. Using pressurized gas, the molten Li metal is ejected through a slotted nozzle at the base of the vessel. The ejected molten Li metal is directly impinged onto an actively cooled and spinning quench wheel or a carrier sheet that is fed across a support roller underneath the vessel. The molten Li metal is cooled and solidified on the spinning wheel/carrier sheet to form a Li-metal foil. The carrier sheet may be a polymeric carrier film or a copper current collector foil. An optional protective film may be applied onto an exposed surface of the Li-metal foil opposite the carrier sheet.
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13.发明公开公开(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.
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公开(公告)号：US20230027323A1
公开(公告)日：2023-01-26
申请号：US17380530
申请日：2021-07-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shaomao Xu , Ryan Curtis Sekol , Jin Liu , Erik Damon Huemiller , Nicholas P. Irish , Dmitriy Bruder
Abstract: Aspects of the disclosure include an electrode coating having a spatially varied porosity and a method of forming the same by using a porous current collector. An exemplary method can include forming a porous current collector having a bulk material and a plurality of voids. The porous current collector can be coated, infused, or otherwise saturated with an electrode coating having an active electrode material. The porous current collector and the electrode coating can be compressed in a calendering process to define the electrode film. The distribution of the plurality of voids in the porous current collector provides for regions of different calendering pressures during the calendering process. The regions of different calendering pressures leads to regions of higher and lower porosity in the resultant electrode film. In other words, an electrode film having a spatially varied porosity.
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15.发明申请公开(公告)号：US20220267886A1
公开(公告)日：2022-08-25
申请号：US17179547
申请日：2021-02-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael P. Balogh , Jin Liu , Ryan C. Sekol , Shaomao Xu , Erik D. Huemiller
Abstract: Presented are lithium-metal electrodes for electrochemical devices, systems and methods for manufacturing lithium-metal foils, and vehicle battery packs containing battery cells with lithium-metal anodes. A method of melt spinning lithium-metal foils includes melting lithium (Li) metal stock in an actively heated vessel to form molten Li metal. Using pressurized gas, the molten Li metal is ejected through a slotted nozzle at the base of the vessel. The ejected molten Li metal is directly impinged onto an actively cooled and spinning quench wheel or a carrier sheet that is fed across a support roller underneath the vessel. The molten Li metal is cooled and solidified on the spinning wheel/carrier sheet to form a Li-metal foil. The carrier sheet may be a polymeric carrier film or a copper current collector foil. An optional protective film may be applied onto an exposed surface of the Li-metal foil opposite the carrier sheet.
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Patent Agency Ranking
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.
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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
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.
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公开(公告)号：US20240332480A1
公开(公告)日：2024-10-03
申请号：US18130161
申请日：2023-04-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Sayed Youssef Sayed NAGY , Caleb Reese , Shaomao Xu , Diptak Bhattacharya
IPC: H01M4/04
CPC classification number: H01M4/0404 , H01M4/0419 , H01M4/0426 , H01M4/045 , H01M4/0471 , H01M4/0483
Abstract: A method for fabricating an anode electrode includes providing a stainless steel current collector, forming a metal oxide layer on the stainless steel current collector, and pouring molten lithium over the metal oxide layer of the stainless steel current collector to create a lithium metal layer on the metal oxide layer.
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公开(公告)号：US11942619B2
公开(公告)日：2024-03-26
申请号：US17725117
申请日：2022-04-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Erik Damon Huemiller , Shaomao Xu , Ryan Curtis Sekol , Wayne Cai , Michael P. Balogh , Xiaowei Yu
CPC classification number: H01M4/0404 , H01M4/0409 , H01M4/382 , H01M2004/021
Abstract: In various aspects, the present disclosure provides a method of manufacturing an electrode for an electrochemical cell. The method includes contacting a solid electrode material and a substrate at an interface. The method further includes preparing a liquid electrode material at the interface by heating at least a portion of the solid electrode material to a first temperature. The first temperature is greater than or equal to a melting point of the solid electrode material. The method further includes creating a layer of the liquid electrode material on the substrate by moving at least one of the solid electrode material and the substrate with respect to the other of the solid electrode material and the substrate. The method further includes forming the electrode by cooling the liquid electrode material to a second temperature. The second temperature is less than or equal to the melting point.
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公开(公告)号：US20230198034A1
公开(公告)日：2023-06-22
申请号：US17555841
申请日：2021-12-20
Applicant: GM Global Technology Operations LLC
Inventor： Erik Damon Huemiller , Michael P. Balogh , Ryan Curtis Sekol , Ratandeep Singh Kukreja , Shaomao Xu , Andrew J. Galant , Nicholas Paul William Pieczonka , Daad Bourhan Haddad
CPC classification number: H01M10/48 , G01N27/221 , G01B7/085 , G01R27/2605 , H01M10/04 , H01M4/0402 , H01M2220/20
Abstract: A quality control system in a battery manufacturing process includes two or more capacitive measurement apparatuses to obtain a capacitance measurement from two or more intermediate products generated during the battery manufacturing process. The system also includes processing circuitry to obtain the capacitive measurement from the two or more capacitive measurement apparatuses, to determine a characteristic of the corresponding intermediate product, and to control at least one process of the battery manufacturing process that produced at least one of the two or more intermediate products based on the characteristic.
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