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公开(公告)号：US12269016B2
公开(公告)日：2025-04-08
申请号：US17749894
申请日：2022-05-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yuntao Gu , Gongshin Qi , Jiazhi Hu , Wei Li
Abstract: A layered catalyst structure for purifying an exhaust gas stream includes a catalyst support and a rhodium catalyst layer including an atomic dispersion of rhodium ions and/or rhodium atoms adsorbed on an exterior surface of the catalyst support. The catalyst support includes an alumina substrate, a first ceria layer disposed on and extending substantially continuously over the alumina substrate, and a second colloidal ceria layer formed directly on the first ceria layer over the alumina substrate.
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公开(公告)号：US11799083B2
公开(公告)日：2023-10-24
申请号：US17446116
申请日：2021-08-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jiazhi Hu , Gongshin Qi
CPC classification number: H01M4/525 , H01M4/505 , H01M4/582 , H01M4/5805 , H01M2004/027 , H01M2004/028
Abstract: The present disclosure provides an electrochemical cell that cycles lithium ions. The electrochemical cell includes a positive electrode and a negative electrode. The positive electrode includes a positive electroactive material and a lithiation additive blended with the positive electroactive material. The lithiation additive includes a lithium-containing material and one or more metals. The lithium-containing material is represented by LiX, where X is hydrogen (H), oxygen (O), nitrogen (N), fluorine (F), phosphorous (P), or sulfur (S). The one or more metals are selected from the group consisting of: iron (Fe), copper (Cu), cobalt (Co), manganese (Mn), and combinations thereof. The negative electrode may include a volume-expanding negative electroactive material.
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公开(公告)号：US11757082B2
公开(公告)日：2023-09-12
申请号：US17179543
申请日：2021-02-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jin Liu , Jiazhi Hu , Raffaello Ardanese , Ryan C. Sekol , Lei Wang , Michael P. Balogh
IPC: H01M4/04 , H01M10/0568 , H01M10/0569 , H01M10/0565
CPC classification number: H01M4/0416 , H01M10/0565 , H01M10/0568 , H01M10/0569
Abstract: A method for fabricating an anode for a lithium ion battery cell is described and includes forming a solid electrolyte interface (SEI) layer on a raw anode prior to assembly into a battery cell by applying a first SEI-generating electrolyte to the raw anode to form a first intermediate anode, applying a second SEI-generating electrolyte to the first intermediate anode to form a second intermediate anode, and applying a third SEI-generating electrolyte to the second intermediate anode to form a cell anode, wherein the cell anode includes the raw anode having the SEI layer. Thus, a cell anode is formed by sequentially applying SEI-generating electrolytes to a raw anode to form the cell anode with an SEI layer, and a lithium ion battery cell is formed by assembling the cell anode into a cell pack, with a cathode, and a separator, and adding a cell electrolyte prior to sealing.
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公开(公告)号：US11996553B2
公开(公告)日：2024-05-28
申请号：US17507479
申请日：2021-10-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Gongshin Qi , Jiazhi Hu
CPC classification number: H01M4/366 , H01M4/0471 , H01M4/386 , H01M4/525 , H01M4/583 , H01M4/624 , H01M10/0525 , H01M2004/021 , H01M2250/20
Abstract: The present disclosure provides a method of preparing a coated electroactive material. The method includes providing a plurality of particles including an electroactive material. The method further includes coating the plurality of particles with a conductive polymer. The coating includes preparing a solution of water and the conductive polymer. The coating further includes forming a slurry by combining the solution with the plurality of particles. The method further includes drying the slurry to form the coated electroactive material. The coated electroactive material includes the plurality of particles. Each of the plurality of particles is at least partially coated with the conductive polymer. In certain aspects, the present disclosure provides a method of preparing an electrode including the coated electroactive material.
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Patent Agency Ranking
公开(公告)号：US20230299359A1
公开(公告)日：2023-09-21
申请号：US17695304
申请日：2022-03-15
Inventor： Ion C. Halalay , Doron Aurbach , Shalom Luski , Michael P. Balogh , Nicole Ellison , Jiazhi Hu
IPC: H01M10/0569 , H01M10/0567 , H01M10/0568 , H01M10/0525 , H01M4/38
CPC classification number: H01M10/0569 , H01M4/386 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M2004/027
Abstract: An electrolyte composition for use in a battery system including a silicon-based negative electrode having active material particles is provided. The electrolyte composition includes a polar solvent selected from the group consisting of ethylene carbonate, propylene carbonate, sulfolane, γ-butyrolactone, and combinations thereof and at least one lithium salt dissolved in the polar solvent at a concentration of at least 2 moles of the at least one lithium salt per 1 liter of the polar solvent. The at least one lithium salt and the polar solvent add dipoles to the electrolyte composition configured for reducing an electric field present at a surface of each of the active material particles in the silicon-based negative electrode of the battery system.
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公开(公告)号：US20230069776A1
公开(公告)日：2023-03-02
申请号：US17446116
申请日：2021-08-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jiazhi Hu , Gongshin Qi
Abstract: The present disclosure provides an electrochemical cell that cycles lithium ions. The electrochemical cell includes a positive electrode and a negative electrode. The positive electrode includes a positive electroactive material and a lithiation additive blended with the positive electroactive material. The lithiation additive includes a lithium-containing material and one or more metals. The lithium-containing material is represented by LiX, where X is hydrogen (H), oxygen (O), nitrogen (N), fluorine (F), phosphorous (P), or sulfur (S). The one or more metals are selected from the group consisting of: iron (Fe), copper (Cu), cobalt (Co), manganese (Mn), and combinations thereof. The negative electrode may include a volume-expanding negative electroactive material.
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公开(公告)号：US20240088399A1
公开(公告)日：2024-03-14
申请号：US17944760
申请日：2022-09-14
Applicant: GM Global Technology Operations LLC
Inventor： Michael P. Balogh , Jiazhi Hu , Jing Gao , Nicole Ellison , Ratandeep Singh Kukreja
IPC: H01M4/80 , H01M4/04 , H01M4/38 , H01M4/48 , H01M4/525 , H01M4/587 , H01M4/66 , H01M10/0525 , H01M50/434
CPC classification number: H01M4/80 , H01M4/0404 , H01M4/382 , H01M4/386 , H01M4/483 , H01M4/525 , H01M4/587 , H01M4/662 , H01M4/663 , H01M10/0525 , H01M50/434 , H01M2004/021
Abstract: A battery electrode for an electrochemical cell that cycles lithium ions is described and includes: a first separator layer including a first side and a second side; a first conductive porous layer located on the first side of the first separator layer; and an active material layer to cycle lithium ions and including a first side and a second side, where the first side of the active material layer is in contact with the first conductive porous layer.
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公开(公告)号：US20230178810A1
公开(公告)日：2023-06-08
申请号：US17541415
申请日：2021-12-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meng Jiang , Jiazhi Hu
IPC: H01M10/0569 , H01M10/0567 , H01M10/0568 , H01M4/587 , H01M4/525 , H01M10/0525 , H01M4/505
CPC classification number: H01M10/0569 , H01M10/0567 , H01M10/0568 , H01M4/587 , H01M4/525 , H01M10/0525 , H01M4/505 , H01M2300/004
Abstract: An electrolyte composition for batteries is provided. The electrolyte composition includes ethylene carbonate, diethyl carbonate, ethyl methyl carbonate, vinyl ethylene carbonate, vinyl carbonate, 1,3-propane sultone, ethylene sulfate, and lithium difluorophosphate. The ethylene carbonate, the diethyl carbonate, and the ethyl methyl carbonate are each present in the electrolyte composition in an amount from 10 parts by weight to 50 parts by weight based on 100 parts by weight of the electrolyte composition. The vinyl ethylene carbonate is present in an amount up to 0.5 parts by weight based on 100 parts by weight of the electrolyte composition. The vinyl carbonate is present in an amount up to 1.0 parts by weight based on 100 parts by weight of the electrolyte composition. The 1,3-propane sultone is present in an amount up to 1.5 parts by weight based on 100 parts by weight of the electrolyte composition.
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公开(公告)号：US20220271268A1
公开(公告)日：2022-08-25
申请号：US17179543
申请日：2021-02-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jin Liu , Jiazhi Hu , Raffaello Ardanese , Ryan C. Sekol , Lei Wang , Michael P. Balogh
IPC: H01M4/04 , H01M10/0565 , H01M10/0569 , H01M10/0568
Abstract: A method for fabricating an anode for a lithium ion battery cell is described and includes forming a solid electrolyte interface (SEI) layer on a raw anode prior to assembly into a battery cell by applying a first SEI-generating electrolyte to the raw anode to form a first intermediate anode, applying a second SEI-generating electrolyte to the first intermediate anode to form a second intermediate anode, and applying a third SEI-generating electrolyte to the second intermediate anode to form a cell anode, wherein the cell anode includes the raw anode having the SEI layer. Thus, a cell anode is formed by sequentially applying SEI-generating electrolytes to a raw anode to form the cell anode with an SEI layer, and a lithium ion battery cell is formed by assembling the cell anode into a cell pack, with a cathode, and a separator, and adding a cell electrolyte prior to sealing.
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