公开(公告)号：US20240213567A1

公开(公告)日：2024-06-27

申请号：US18364161

申请日：2023-08-02

Applicant: GM Global Technology Operations LLC

Inventor： Jingyuan LIU ,  Dewen Kong ,  Dave G. Rich ,  John Christian Kalil ,  Haijing Liu

IPC: H01M10/653 ,  H01M10/613 ,  H01M10/658 ,  H01M50/204 ,  H01M50/293 ,  H01M50/296

CPC classification number: H01M10/653 ,  H01M10/613 ,  H01M10/658 ,  H01M50/204 ,  H01M50/293 ,  H01M50/296

Abstract: A battery module includes C battery cells, wherein each of the C battery cells comprises a housing and a terminals extending from the housing. T thermal interlayer devices are arranged between adjacent ones of the C battery cells. C and T are integers greater than one. Each of the T thermal interlayer devices comprises a first thermally conducting layer in thermal communication with a first one of the C battery cells, a second thermally conducting layer in thermal communication with a second one of the C battery cells, and a thermally resistant layer arranged between the first thermally conducting layer and the second thermally conducting layer. A cooling manifold is in thermal communication with at least one of the first thermally conducting layer and the second thermally conducting layer.

公开(公告)号：US20240100991A1

公开(公告)日：2024-03-28

申请号：US18349603

申请日：2023-07-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Aaron B. Bloom ,  Dave G. Rich ,  Dewen Kong ,  Jingyuan Liu ,  Wing-Fai Ha

IPC: B60L58/16 ,  B60L53/62 ,  B60L58/18

CPC classification number: B60L58/16 ,  B60L53/62 ,  B60L58/18 ,  B60L2240/547 ,  B60L2240/549

Abstract: A battery system for a vehicle includes: first and second positive terminals and a negative terminal; switches; at least three strings of battery cells, each of the strings configured to, at different times be: connected to the first positive terminal via first ones of the switches; connected to the second positive terminal via second ones of the switches; and disconnected from both of the first and second positive terminals; and a switch control module configured to: identify one of a short circuit and an over voltage condition in a first voltage bus; when the one of the short circuit and the over voltage condition is identified, identify N of the strings of battery cells with the N lowest state of health values; and control switching of the switches and connect the identified N strings of battery cells to the first voltage bus.

公开(公告)号：US20230396090A1

公开(公告)日：2023-12-07

申请号：US17832055

申请日：2022-06-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-mo KANG ,  Dave G. Rich

IPC: H02J7/00

CPC classification number: H02J7/007194 ,  H02J7/0024 ,  H02J7/0019 ,  H02J7/0048

Abstract: A battery system includes: first and second positive terminals and a negative terminal; switches; at least two battery modules, each of the battery modules including at least three strings of battery cells configured to, at different times be: connected in series and to the first positive terminal via first ones of the switches; connected in parallel and to the second positive terminal via second ones of the switches; and disconnected from both of the first and second positive terminals; and a switch control module configured to: receive temperatures of the strings of battery cells, respectively; determine temperatures of the battery modules, respectively, based on the temperatures of the strings of battery cells of that battery module; and selectively actuate the switches based on at least one of: minimizing an error between the temperatures of the strings of battery cells; and minimizing an error between the temperatures of the battery modules.

公开(公告)号：US11309589B1

公开(公告)日：2022-04-19

申请号：US17119858

申请日：2020-12-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dorel M. Sala ,  Mahmoud Abd Elhamid ,  Dave G. Rich

IPC: H01M10/00 ,  H01M10/42 ,  H01M10/06

Abstract: The present disclosure pertains to motion-generating pumps, energy storage devices including such motion-generating pumps, and methods of making and using the same for the desulfation of lead-acid batteries. The energy storage device includes a battery casing defining a plurality of chambers, each of the plurality of chambers may include one or more electroactive plates disposed therein and an electrolyte disposed so as to surround the one or more electroactive plates. The energy storage device further includes one or more circulating systems configured to agitate the electrolyte in each of the plurality of chambers. A method for desulfation in a lead-acid battery may include using one or more circulating systems to circulate an electrolyte so as to prevent precipitation.

公开(公告)号：US11239469B2

公开(公告)日：2022-02-01

申请号：US15995580

申请日：2018-06-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Jingjing Wu ,  Dave G. Rich ,  Saad Hasan

IPC: H01M4/80 ,  H01M10/0525 ,  H01G11/06 ,  H01M10/056

Abstract: A hybrid lithium-ion battery/capacitor cell comprising at least a pair of graphite anodes assembled with a lithium compound cathode and an activated carbon capacitor electrode can provide useful power performance properties and low temperature properties required for many power utilizing applications. The graphite anodes are formed of porous layers of graphite particles bonded to at least one side of current collector foils which face opposite sides of the activated carbon capacitor. The porous graphite particles are pre-lithiated to form a solid electrolyte interface on the anode particles before the anodes are assembled in the hybrid cell. The pre-lithiation step is conducted to circumvent the irreversible reactions in the formation of a solid electrolyte interface (SEI) and preserve the lithium content of the electrolyte and lithium cathode during formation cycling of the assembled hybrid cell. The pre-lithiation step is also applicable to other anode materials that benefit from such pre-lithiation.

公开(公告)号：US20200036070A1

公开(公告)日：2020-01-30

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: H01M12/00 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/056 ,  H01M10/0562 ,  H01G11/28 ,  H01G11/06 ,  H01G11/56

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：US12249854B2

公开(公告)日：2025-03-11

申请号：US17676954

申请日：2022-02-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-mo Kang ,  Chen-Fang Chang ,  Dave G. Rich

IPC: H02J7/00 ,  H01M10/42 ,  H01M50/51 ,  H01M50/512

Abstract: A battery system includes: a first positive terminal, a second positive terminal, and a negative terminal; at least two battery modules, each including switches and at least three strings of battery cells configured to, via the switches, at different times be: connected in series and to the first positive terminal; connected in parallel and to the second positive terminal; and disconnected from both of the first and second positive terminals; and a switch control module configured to, when a fault is diagnosed in one of the strings of one of the battery modules: at least one of: actuate the switches and isolate the one of the battery modules from the first and second positive terminals; and actuate the switches and isolate the one of the strings from the first and second positive terminals; and selectively actuate the switches of the remainder of the battery modules using model predictive control.

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：US20240274984A1

公开(公告)日：2024-08-15

申请号：US18360065

申请日：2023-07-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Qili Su ,  Dave G. Rich ,  Yong Lu ,  Haijing Liu

IPC: H01M50/494 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/451

CPC classification number: H01M50/494 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/451 ,  H01M2300/008

Abstract: A battery cell including an anode electrode layer including an anode active material. A cathode electrode layer comprises cathode active material. A solid electrolyte layer is arranged between the anode electrode layer and the cathode electrode layer. An elastomeric layer is arranged between the anode electrode layer and the solid electrolyte layer.

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.