公开(公告)号：US11837704B2

公开(公告)日：2023-12-05

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

CPC classification number: 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：US20230093233A1

公开(公告)日：2023-03-23

申请号：US17563295

申请日：2021-12-28

Applicant: GM Global Technology Operations LLC

Inventor： Qili Su ,  Dewen Kong ,  Si Chen ,  Haijing Liu ,  Dave G. Rich ,  Lyall K. Winger

IPC: H01M10/42 ,  H02J7/00 ,  H01M10/44

Abstract: A capacitor assisted battery module includes a first diode including an anode and a cathode. A second diode includes an anode and a cathode. The anode of the first diode is connected to the cathode of the second diode at a first node. A first capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, where N is an integer greater than zero. The positive terminal of the first CAB block is connected to the cathode of the first diode. A second capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, wherein the negative terminal of the second CAB block is connected to the anode of the second diode. The negative terminal of the first CAB block and the positive terminal of the second CAB block are connected to a second node.

公开(公告)号：US20230074308A1

公开(公告)日：2023-03-09

申请号：US17467758

申请日：2021-09-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chandra S. Namuduri ,  Dave G. Rich ,  Lyall K. Winger ,  Suresh Gopalakrishnan

IPC: H02J7/00 ,  H01M10/42 ,  B60L50/60

Abstract: A system for modular dynamically adjustable capacity storage for a vehicle is provided. The system includes a battery pack including a plurality of battery cells, a negative terminal including a chassis ground connection, and a plurality of positive battery pack terminals. The negative terminal and the plurality of positive battery pack terminals are useful for connecting at least one electrical circuit through the battery pack. The system further includes a battery cell switching system, including a plurality of solid-state switches connected to each of the battery cells. The plurality of solid-state switches is operable to selectively connect a portion of the battery cells in parallel, selectively connect the portion of the battery cells in series, and selectively connect one of the plurality of battery cells to one of the plurality of positive battery pack terminals.

公开(公告)号：US11235748B2

公开(公告)日：2022-02-01

申请号：US16290570

申请日：2019-03-01

Applicant: GM Global Technology Operations LLC

Inventor： Dave G. Rich ,  Lyall K. Winger ,  Saad Hasan ,  Gary W. Gantt, Jr. ,  Mahmoud Abd Elhamid

IPC: B60W20/10 ,  H02J7/16 ,  H02J7/34 ,  H02J7/14 ,  B60L58/10 ,  H02J7/00

Abstract: A battery control system includes first and second batteries each including first and second terminals configured to output a first voltage, third and fourth terminals configured to output a second voltage, a plurality of individually housed batteries, and a plurality of switches configured to connect ones of the individually housed batteries to and from ones of the first, second, third, and fourth terminals. A control module is configured to selectively provide the first voltage from either one of the first battery and the second battery to a first set of loads and selectively provide the second voltage from either one of the first battery and the second battery to a second set of loads.

公开(公告)号：US11233407B2

公开(公告)日：2022-01-25

申请号：US16290602

申请日：2019-03-01

Applicant: GM Global Technology Operations LLC

Inventor： Lyall K. Winger ,  Dave G. Rich ,  Suresh Gopalakrishnan ,  Chandra S. Namuduri

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/48 ,  B60L3/04 ,  B60L53/00

Abstract: A battery includes: a first terminal; a second terminal; a plurality of individually housed batteries; a plurality of switches configured to connect ones of the individually housed batteries to and from ones of the first and second terminals; and a switch control module configured to: at a frequency, vary a voltage applied to a gate of one of the switches, the one of the switches configured to connect at least one of the individually housed batteries to one of the first and second terminals; and diagnose whether a fault is present in the one of the switches based on a voltage across the one of the switches.

公开(公告)号：US11205798B2

公开(公告)日：2021-12-21

申请号：US16048427

申请日：2018-07-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Dave G. Rich ,  Haijing Liu ,  Dewen Kong ,  Sherman H. Zeng

IPC: H01M10/0525 ,  H01M10/0585 ,  H01M10/056 ,  H01M10/0562 ,  H01G11/06 ,  H01G11/56 ,  H01G11/28

Abstract: A capacitor-assisted, solid-state lithium-ion battery is formed by replacing at least one of the electrodes of the battery with a capacitor electrode of suitable particulate composition for the replaced battery particulate anode or cathode material. The solid-state electrodes typically contain solid-state electrode material and are separated with solid-state electrode material. In another embodiment the capacitor anode or cathode particles may be mixed with lithium-ion battery anode or cathode particles respectively. Preferably, the battery comprises at least two positively-charged electrodes and two negatively-charged electrodes, and the location and compositions of the capacitor material electrode(s) may be selected to provide a desired combination of energy and power.

公开(公告)号：US11156665B2

公开(公告)日：2021-10-26

申请号：US16183895

申请日：2018-11-08

Applicant: GM Global Technology Operations LLC

Inventor： Dave G. Rich ,  Jonathan O. Conell ,  Robert A. De Stefano ,  Saad Hasan ,  Benjamin G. Wroblewski ,  Lyall K. Winger

IPC: G01R31/327 ,  G01R35/00 ,  G01R31/00 ,  B60L58/21 ,  B60K6/28

Abstract: A battery control system includes T contactor paths connected in parallel between a battery and a load, where T is an integer greater than one. Each of the T contactor paths includes a first contactor and a second contactor connected in series with the first contactor. Each of the T contactor paths includes at least one of a first voltage sensor configured to sense a first voltage between the first contactor and the second contactor; and a current sensor configured to sense current flowing through the first contactor and the second contactor. A second voltage sensor is configured to sense a second voltage at one end of the T contactor paths. A third voltage sensor is configured to sense a third voltage at an opposite end of the T contactor paths.

公开(公告)号：US11031634B2

公开(公告)日：2021-06-08

申请号：US16275809

申请日：2019-02-14

Applicant: GM Global Technology Operations LLC

Inventor： Lyall K. Winger ,  Dave G. Rich ,  Saad Hasan

IPC: H01M10/42 ,  B60K6/28 ,  B60L53/00 ,  B60L50/60 ,  H02J7/34

Abstract: A battery control system includes a battery comprising: first and second terminals; third and fourth terminals; a plurality of individually housed batteries; and a plurality of switches configured to connect ones of the batteries to and from ones of the first, second, third, and fourth terminals. A mode module is configured to set a mode of operation based on at least one of a plurality of present operating parameters. A switch control module is configured to control the plurality of switches based on the mode of operation.

公开(公告)号：US20200153051A1

公开(公告)日：2020-05-14

申请号：US16275809

申请日：2019-02-14

Applicant: GM Global Technology Operations LLC

Inventor： Lyall K. Winger ,  Dave G. Rich ,  Saad Hasan

IPC: H01M10/42 ,  B60K6/28

Abstract: A battery control system includes a battery comprising: first and second terminals; third and fourth terminals; a plurality of individually housed batteries; and a plurality of switches configured to connect ones of the batteries to and from ones of the first, second, third, and fourth terminals. A mode module is configured to set a mode of operation based on at least one of a plurality of present operating parameters. A switch control module is configured to control the plurality of switches based on the mode of operation.

公开(公告)号：US20200036053A1

公开(公告)日：2020-01-30

申请号：US16390782

申请日：2019-04-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Dave G. Rich ,  Haijing Liu ,  Dewen Kong ,  Sherman H. Zeng

IPC: H01M10/42 ,  H01M10/0562 ,  H01M10/0525 ,  H01M10/0565

Abstract: A capacitor-assisted, solid-state lithium-ion battery is formed by replacing at least one of the electrodes of the battery with a capacitor electrode of suitable particulate composition for the replaced battery particulate anode or cathode material. The solid-state electrodes typically contain quasi-solid-state electrode material and are separated with a layer of quasi-solid-state electrolyte material. In another embodiment the capacitor anode or cathode particles may be mixed with lithium-ion battery anode or cathode particles respectively. Preferably, the battery comprises at least two positively-charged electrodes and two negatively-charged electrodes, and the location, number and compositions of the capacitor material electrode(s) may be selected to provide a desired combination of energy and power.