公开(公告)号：US20230110889A1

公开(公告)日：2023-04-13

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: B60L58/26 ,  B60L58/13 ,  G01C21/34 ,  B60W20/20

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.

公开(公告)号：US20230074112A1

公开(公告)日：2023-03-09

申请号：US17710213

申请日：2022-03-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili SU ,  Zhe LI ,  Yong LU ,  Haijing LIU

IPC: H01M10/0565 ,  H01M10/0525

Abstract: The present disclosure provides a polymeric gel electrolyte for an electrochemical cell that cycles lithium ions. The polymeric gel electrolyte includes greater than or equal to about 0.1 wt. % to less than or equal to about 10 wt. % of a non-lithium salt. The non-lithium salt includes a non-lithium cation having an ion radius that is greater than or equal to about 80% to less than or equal to about 250% of an ion radius of a lithium ion. The polymeric gel electrolyte further includes greater than or equal to about 50 wt. % to less than or equal to about 99.9 wt. % of a non-volatile gel. The non-volatile gel includes greater than or equal to 0 wt. % to less than or equal to about 50 wt. % of a polymeric host and greater than or equal to about 5 wt. % to less than or equal to about 100 wt. % of a liquid electrolyte.

公开(公告)号：US20230025830A1

公开(公告)日：2023-01-26

申请号：US17697135

申请日：2022-03-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili SU ,  Mengyan HOU ,  Zhe LI ,  Haijing LIU

IPC: H01M10/0585 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0565

Abstract: The present disclosure provides a method for forming a solid-state battery. The method includes stacking two or more cell units, where each cell unit is formed by substantially aligning a first electrode and a second electrode, where the first electrode includes one or more first electroactive material layers disposed on or adjacent to one or more surfaces of a releasable substrate and the second electrode includes one or more second electroactive material layers disposed on or adjacent to one or more surfaces of a current collector; disposing an electrolyte layer between exposed surfaces of the first electrode and the second electrode; and removing the releasable substrate to form the cell unit.

公开(公告)号：US20230015143A1

公开(公告)日：2023-01-19

申请号：US17688445

申请日：2022-03-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili SU ,  Mengyan HOU ,  Meiyuan WU ,  Haijing LIU

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M10/0583 ,  H01M10/04 ,  H01M4/04

Abstract: A method for forming a solid-state battery is provided. The method includes disposing one or more cell units along a continuous current collector to form a stack precursor. In some examples, disposing of the one or more cell units along the continuous current collector includes concurrently disposing the one or more cell units along the continuous current collector and winding the continuous current collector to form a stack. In other examples, the continuous current collector is a z-folded current collector and the disposing the one or more cell units along the continuous current collector includes inserting the one or more cell units into one or more pockets formed by folds of the continuous current collector. The method may further include applying heat, pressure, or a combination of heat and pressure to the stack precursor to form a compressed stack, and cutting the continuous current collector to form the solid-state battery.

公开(公告)号：US20220336880A1

公开(公告)日：2022-10-20

申请号：US17854692

申请日：2022-06-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhiqiang YU ,  Haijing LIU ,  Xiaochao QUE ,  Dave Gerard RICH ,  Saad HASAN ,  Meiyuan WU

IPC: H01M10/615 ,  H01M4/04 ,  H01M4/66 ,  H01M4/75 ,  H01M4/80 ,  H01M10/0587

Abstract: Lithium-based and sodium-based batteries and capacitors using metal foil current collectors, coated with porous layers of particles of active electrode materials for producing an electric current, may adapted to produce heat for enhancing output when the cells are required to periodically operate during low ambient temperatures. A self-heating cell may be placed in heat transfer contact with a working cell that is temporarily in a cold environment. Or one or both of the anode current collector and cathode current collectors of a heating cell may be formed with shaped extended portions, uncoated with electrode materials, through which cell current may be passed for resistance heating of the extended current collector areas. These extended current collector areas may be used to heat the working area of the cell in which they are incorporated, or to contact and heat an adjacent working cell.

公开(公告)号：US20220200077A1

公开(公告)日：2022-06-23

申请号：US17561031

申请日：2021-12-23

Applicant: GM Global Technology Operations LLC

Inventor： Jingyuan LIU ,  Dewen KONG ,  Dave G. RICH ,  Haijing LIU ,  Lyall K. WINGER ,  Mark W. VERBRUGGE

IPC: H01M10/615 ,  H01M50/569

Abstract: An electrochemical device according to various aspects of the present disclosure includes an electrochemical cell and an inductor coil. The electrochemical cell includes a current collector. the current collector includes an electrically-conductive material. The inductor coil is configured to generate a magnetic field. The magnetic field is configured to induce an eddy current in the current collector to generate heat in the current collector. In various aspects, the present disclosure also provides a method of internally heating an electrochemical cell. In various aspects, the present disclosure also provides a method of controlling heating of an electrochemical cell.

公开(公告)号：US20220181598A1

公开(公告)日：2022-06-09

申请号：US17543160

申请日：2021-12-06

Applicant: GM Global Technology Operations LLC

Inventor： Yong LU ,  Zhe LI ,  Xiaochao QUE ,  Haijing LIU ,  Meiyuan WU

IPC: H01M4/04

Abstract: The present disclosure relates to a solid-state electrochemical cell having a uniformly distributed solid-state electrolyte and methods of fabrication relating thereto. The method may include forming a plurality of apertures within the one or more solid-state electrodes; impregnating the one or more solid-state electrodes with a solid-state electrolyte precursor solution so as to fill the plurality of apertures and any other void or pores within the one or more electrodes with the solid-state electrolyte precursor solution; and heating the one or more electrodes so as to solidify the solid-state electrolyte precursor solution and to form the distributed solid-state electrolyte.

公开(公告)号：US20220123352A1

公开(公告)日：2022-04-21

申请号：US17481179

申请日：2021-09-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Yong LU ,  Qili SU ,  Meiyuan WU ,  Haijing LIU

IPC: H01M10/056 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/66

Abstract: A high-temperature stable solid-state bipolar battery is provided. The battery includes two or more electrodes, one or more solid-state electrolyte layers, and an ionogel disposed within void spaces within the battery. Each electrode includes a plurality of solid-state electroactive particles. Each solid-state electrolyte layer includes a plurality of solid-state electrolyte particles and a first solid-state electrolyte layer of the one or more solid-state electrolyte layers may be disposed between a first electrode and a second electrode of the two or more electrodes. The ionogel is disposed within void spaces between the two or more electrodes, the solid-state electroactive particles of the two or more electrodes, the solid-state electrolyte particles of the one or more solid-state electrolyte layers, and the one or more solid-state electrolyte layers, such that the battery has an reduced interparticle porosity. The ionogel may have an ionic conductivity between about 0.1 mS/Cm and about 10 mS/cm.

公开(公告)号：US20210151809A1

公开(公告)日：2021-05-20

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 ,  H01M2/10 ,  H01M10/0525 ,  H01G11/24 ,  H01M2/20 ,  G01R31/396 ,  H01M2/30 ,  H01G11/46 ,  H01G11/06 ,  G01R31/3835 ,  H01G11/58 ,  H01M10/48

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：US20210151260A1

公开(公告)日：2021-05-20

申请号：US16685389

申请日：2019-11-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen KONG ,  Xiaochao QUE ,  Meiyuan WU ,  Si CHEN ,  Haijing LIU ,  Mark W. VERBRUGGE

IPC: H01G11/06 ,  H01G11/34 ,  H01G11/24 ,  H01G11/46 ,  H01G11/72 ,  H01G11/86 ,  H01M10/0525

Abstract: A capacitor-assisted electrode for an electrochemical cell that cycles lithium ions is provided. The capacitor-assisted electrode may include at least two electroactive materials disposed on one or more surfaces of a current collector. A first electroactive material of the at least two electroactive materials may have a first reversible specific capacity and forms a first electroactive material having a first press density. A second electroactive material of the at least two electroactive materials has a second reversible specific capacity and forms a second electroactive material having a second press density. The second reversible specific capacity may be different from the first reversible specific capacity. The second press density may be different from the first press density. One or more capacitor materials may be disposed on or intermingled with one or more of the at least two electroactive materials.