公开(公告)号：US20200153050A1

公开(公告)日：2020-05-14

申请号：US16183803

申请日：2018-11-08

Applicant: GM Global Technology Operations LLC

Inventor： Lyall K. WINGER ,  Dave G. RICH ,  Saad HASAN

IPC: H01M10/42 ,  B60L11/18 ,  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：US20210399354A1

公开(公告)日：2021-12-23

申请号：US17289387

申请日：2018-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： YiChun YAN ,  Dave G. RICH ,  Saad HASAN ,  Lyall K. WINGER ,  Varsha K. SADEKAR

IPC: H01M10/48 ,  H01M10/42

Abstract: A battery maintenance system includes an enclosure including a plurality of walls. A plurality of battery cells are located in the enclosure and surrounded by electrolyte. An electrolyte agitator such as a piezoelectric device is attached to at least one of the walls of the enclosure and is configured to selectively agitate the electrolyte.

公开(公告)号：US20230219459A1

公开(公告)日：2023-07-13

申请号：US18093413

申请日：2023-01-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Saad HASAN ,  Dave G. RICH

IPC: B60L58/22 ,  H02J7/00

CPC classification number: B60L58/22 ,  H02J7/00712 ,  B60L2240/547

Abstract: A battery system includes at least one battery including a plurality of cells and a hybrid control module configured to monitor a differential capacity of the at least one battery, determine when the monitored differential capacity of the at least one battery corresponds to a predetermined differential capacity of the at least one battery, and determine a state of charge of the battery in response to the determination that the monitored differential capacity corresponds to the predetermined differential capacity.

公开(公告)号：US20200235444A1

公开(公告)日：2020-07-23

申请号：US16487914

申请日：2017-03-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

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

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：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：US20200150182A1

公开(公告)日：2020-05-14

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 ,  B60L11/18

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.