公开(公告)号：US12266801B2

公开(公告)日：2025-04-01

申请号：US17737084

申请日：2022-05-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen Kong ,  Meiyuan Wu ,  Si Chen ,  Haijing Liu

IPC: H01M4/62 ,  H01M4/02

Abstract: An active material component of a composition for forming an electrode of a battery in a dry process is provided. The active material component includes a dry powder including a plurality of grains of an active material. The active material component further includes an electrically conductive filler material attached to each of the plurality of grains.

公开(公告)号：US20250062081A1

公开(公告)日：2025-02-20

申请号：US18480621

申请日：2023-10-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yong Lu ,  Meiyuan Wu ,  Zhe Li ,  Qili Su ,  Haijing Liu

IPC: H01G11/84 ,  H01M12/00

Abstract: A bipolar solid-state battery cell includes a plurality of battery cells, wherein each cell includes a separator, an anode disposed on a first side of the separator and a cathode disposed on a second side of the separator; where the second side is opposedly disposed to the first side. The anode is in electrical communication with an anode current collector and the cathode is in electrical communication with a cathode current collector. A capacitor wall is disposed parallel to at least one external surface of the anode or cathode, where the capacitor wall includes a capacitor active material.

公开(公告)号：US20230261172A1

公开(公告)日：2023-08-17

申请号：US17851095

申请日：2022-06-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Qili Su ,  Yong Lu ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M4/133 ,  H01M4/36 ,  H01M4/587 ,  H01M10/0562 ,  H01M10/0525

CPC classification number: H01M4/133 ,  H01M4/366 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/021

Abstract: A solid-state battery system including a graphite anode is provided. The system includes a battery cell. The battery cell includes the graphite anode, a cathode, and a solid electrolyte layer. The graphite anode includes a plurality of graphite particles, wherein the plurality of graphite particles includes a first portion of the plurality of graphite particles including a plurality of relatively high specific surface area graphite particles and a second portion of the plurality of graphite particles including a plurality of relatively low specific surface area graphite particles. The solid electrolyte layer is disposed between the graphite anode and the cathode and is operable to provide lithium-ion conduction path between the graphite anode and the cathode.

公开(公告)号：US11721843B2

公开(公告)日：2023-08-08

申请号：US16779780

申请日：2020-02-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen Kong ,  Xiaochao Que ,  Dave G. Rich ,  Si Chen ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M10/42 ,  H01M10/48 ,  H01M10/0525 ,  H01G11/24 ,  H01G11/58 ,  H01G11/46 ,  G01R31/396 ,  G01R31/3835 ,  H01G11/06 ,  H01M50/20 ,  H01M50/502 ,  H01M50/543

CPC classification number: H01M10/4264 ,  G01R31/3835 ,  G01R31/396 ,  H01G11/06 ,  H01G11/24 ,  H01G11/46 ,  H01G11/58 ,  H01M10/0525 ,  H01M10/482 ,  H01M50/20 ,  H01M50/502 ,  H01M50/543 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A capacitor-assisted battery module includes a housing, a positive terminal, a negative terminal, one or more capacitor-assisted battery cells and one or more first switches. The one or more capacitor-assisted battery cells are disposed in the housing and include one or more battery terminals and one or more capacitor terminals. The one or more battery terminals are connected to battery electrodes. The one or more capacitor terminals are connected to capacitor electrodes. At least one of the one or more battery terminals and the capacitor terminals is connected to the negative terminal. One or more first switches is configured to connect the one or more capacitor terminals to the positive terminal. An overall voltage of the capacitor assisted battery module is measured across the positive terminal and the negative terminal.

公开(公告)号：US11539071B2

公开(公告)日：2022-12-27

申请号：US16578880

申请日：2019-09-23

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Yong Lu ,  Mark W. Verbrugge ,  Meiyuan Wu

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A sulfide-impregnated solid-state battery is provided. The battery comprises a cell core constructed by basic cell units. Each unit comprises a positive electrode comprising a cathode layer and a positive meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The cell unit further comprises a negative electrode comprising an anode layer and a negative meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The positive and negative electrodes are stacked together to form the cell unit. The two coated oxide-based solid electrolyte layers are disposed between the positive and negative electrode as dual separators. Such a cell unit may be repeated or connected in parallel or bipolar stacking to form the cell core to achieve a desired battery voltage, power and energy. The cell core comprises a sulfide-based solid-state electrolyte dispersed in the pore structures of cell core.

公开(公告)号：US10944100B2

公开(公告)日：2021-03-09

申请号：US16098457

申请日：2016-06-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Zhiqiang Yu ,  Dewen Kong ,  Meiyuan Wu

IPC: H01M4/139 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0585 ,  H01M4/13 ,  H01M12/00 ,  H01M10/052 ,  H01G11/32 ,  H01G11/38 ,  H01G11/06 ,  H01G11/28 ,  H01G11/50 ,  H01G11/86 ,  H01M10/0525 ,  H01G11/04 ,  H01G11/62

Abstract: At least one of the anode and cathode of a lithium-ion processing electrochemical cell are prepared with a layer of mixed particles of both active lithium battery electrode materials and lithium ion adsorbing capacitor materials, or with co-extensive, contiguous layers of battery electrode particles in one layer and capacitor particles in the adjoining layer. The proportions of active battery electrode particles and active capacitor particles in one or both of the electrodes are predetermined to provide specified energy density (Wh/kg) and power density (W/kg) properties of the cell for its intended application.

公开(公告)号：US20210036360A1

公开(公告)日：2021-02-04

申请号：US16578880

申请日：2019-09-23

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Yong Lu ,  Mark W. Verbrugge ,  Meiyuan Wu

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A sulfide-impregnated solid-state battery is provided. The battery comprises a cell core constructed by basic cell units. Each unit comprises a positive electrode comprising a cathode layer and a positive meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The cell unit further comprises a negative electrode comprising an anode layer and a negative meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The positive and negative electrodes are stacked together to form the cell unit. The two coated oxide-based solid electrolyte layers are disposed between the positive and negative electrode as dual separators. Such a cell unit may be repeated or connected in parallel or bipolar stacking to form the cell core to achieve a desired battery voltage, power and energy. The cell core comprises a sulfide-based solid-state electrolyte dispersed in the pore structures of cell core.

公开(公告)号：US20190288328A1

公开(公告)日：2019-09-19

申请号：US16304718

申请日：2016-06-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhiqiang Yu ,  Xiaochao Que ,  Haijing Liu ,  Wentian Gu ,  Meiyuan Wu

IPC: H01M10/0525 ,  H01M10/04 ,  H01M4/134 ,  H01M4/1391

Abstract: The electrical performance and structural integrity of lithium battery electrodes, formed of particles of active electrode materials, are improved by mixing electrically conductive wires (metal wires, carbon fibers, and/or the like, including chemically-reduced metal oxide particles) with the particles of active electrode material. For example, copper wires may be intimately mixed with anode particles in porous anode layers which are resin-bonded to sides of a copper current collector foil. And aluminum wires may be mixed with cathode particles in porous cathode layers resin bonded to an aluminum current collector. The wires may be used to increase both the conductivity of electrons and lithium ions and the flexibility of the electrode layer when the electrodes are infiltrated with a solution of a lithium salt electrolyte. The workable thickness of each electrode layer can thus be increased and its performance enhanced to produce a lower cost and better forming battery.

公开(公告)号：US12211984B2

公开(公告)日：2025-01-28

申请号：US17203863

申请日：2021-03-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen Kong ,  Dave G. Rich ,  Lyall K. Winger ,  Meiyuan Wu ,  Jingyuan Liu ,  Haijing Liu

IPC: H01M10/63 ,  H01M10/615 ,  H01M10/625 ,  H02J7/00

Abstract: A thermal device comprises a first layer of a non-metallic material that is a good conductor of heat and electricity, that includes a first terminal and a second terminal, and that has a first surface and a second surface; a metallic material disposed on the first surface of the first layer; a first plastic layer disposed on the metallic material; and a second plastic layer disposed on the second surface of the first layer. The first plastic layer and the second plastic layer include a plastic material that is a good conductor of heat.

公开(公告)号：US12024059B2

公开(公告)日：2024-07-02

申请号：US17565647

申请日：2021-12-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen Kong ,  Dave G. Rich ,  Lyall K. Winger ,  Aaron B. Bloom ,  Jingyuan Liu ,  Meiyuan Wu ,  Haijing Liu

IPC: G06F17/00 ,  B60L58/13 ,  B60L58/26 ,  B60W20/20 ,  G01C21/34

CPC classification number: B60L58/26 ,  B60L58/13 ,  B60W20/20 ,  G01C21/3469

Abstract: A vehicle system is provided and includes a modular dynamically allocated capacity storage system (MODACS) and an active management module. The MODACS includes blocks of cells. The active management module is configured to: detect a first state of a first block of cells of the blocks of cells; determine whether a safety fault condition exists with the first block of cells based on the first state of the first block of cells; in response to detecting existence of the safety fault condition, isolate the first block of cells from other ones of the blocks of cells; subsequent to isolating the first block of cells, actively discharge and detect a second state of the first block of cells; and based on the second state, continue isolating the first block of cells or reconnecting the first block of cells such that the first block of cells is no longer isolated.