公开(公告)号：US20240072331A1

公开(公告)日：2024-02-29

申请号：US18123461

申请日：2023-03-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jingyuan LIU ,  Sherman H. Zeng ,  Haijing Liu ,  John Christian Kalil

IPC: H01M10/6556 ,  H01M10/613 ,  H01M50/209 ,  H01M50/507 ,  H01M50/533

CPC classification number: H01M10/6556 ,  H01M10/613 ,  H01M50/209 ,  H01M50/507 ,  H01M50/533

Abstract: A battery includes B groups of battery cells that are arranged adjacent to one another in a stacking direction, wherein B is an integer greater than one. The B groups of battery cells include B first battery cells each having a first shape, including first groups of external tabs and defining first recesses, respectively, and B second battery cells having the first shape, including second groups of external tabs, and defining second recesses, respectively. The B second battery cells are inverted and arranged adjacent to the B first battery cells in B planes that are arranged transverse to the stacking direction. The first recesses of the B first battery cells and the second recesses of the B second battery cells define a central tunnel running through the B groups of battery cells. The central tunnel is configured to receive a temperature adjustment device.

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：US11784010B2

公开(公告)日：2023-10-10

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 ,  H01G11/72 ,  H01G11/86 ,  H01M10/0525 ,  H01G11/46 ,  H01M4/06 ,  H01M4/13 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01G11/06 ,  H01G11/24 ,  H01G11/34 ,  H01G11/46 ,  H01G11/72 ,  H01G11/86 ,  H01M4/06 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

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.

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：US20220181710A1

公开(公告)日：2022-06-09

申请号：US17542294

申请日：2021-12-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Yong Lu ,  Haijing Liu

IPC: H01M10/42 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/587

Abstract: The present disclosure relates to capacitor-assisted lithium-sulfur batteries including capacitor electrodes and/or capacitor-based interlayers. For example, a capacitor-assisted lithium-sulfur battery that includes two or more cells is provided. Each cell includes at least two electrodes selected from: a first electrode including a sulfur-containing electroactive material; a second electrode including a negative electroactive material; a first capacitor electrode including a positive capacitor active material; and a second capacitor electrode including a negative capacitor active material. Each electrode may be disposed adjacent to a surface of a current collector and a separator may be disposed between adjacent electrodes so as to provide electrical separation. One of the two or more cells includes the first electrode and the second electrode, and no cell includes both the first electrode and the first capacitor electrode or both the second electrode and the second capacitor electrode. Each cell may further include at least one capacitor-based interlayer.

公开(公告)号：US11340299B2

公开(公告)日：2022-05-24

申请号：US16110618

申请日：2018-08-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Wentian Gu ,  Zhiqiang Yu

IPC: H02J7/00 ,  G01R31/3835 ,  B60L50/64 ,  H01M10/04 ,  H01G11/14 ,  H01G11/28 ,  H01M16/00 ,  B60L50/40 ,  H01G11/16 ,  H01G11/08 ,  B60L58/10 ,  H01G11/76 ,  B60L3/12 ,  H01M10/48 ,  G01R31/36 ,  B60L3/00 ,  H01G11/22 ,  H01M10/0525 ,  H01M10/42 ,  H01G11/34 ,  H01G11/46 ,  H01G11/48

Abstract: A battery and supercapacitor system of a vehicle includes a lithium ion battery (LIB) having first and second electrodes, and a supercapacitor having third and fourth electrodes. A first reference electrode is disposed between the first and second electrodes and is configured to measure a first potential at a location between the first and second electrodes. A second reference electrode is disposed between the third and fourth electrodes and is configured to measure a second potential at a location between the third and fourth electrodes. The first electrode may be connected to the third electrode, and the second electrode may be connected to the fourth electrode. The first and second reference electrodes may not be connected to any of the first, second, third, or fourth electrodes.

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：US11196097B2

公开(公告)日：2021-12-07

申请号：US16110644

申请日：2018-08-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wentian Gu ,  Haijing Liu ,  Mark W. Verbrugge ,  Zhiqiang Yu

IPC: F02N11/08 ,  H01G11/22 ,  H01G11/54 ,  H01M10/0525 ,  H01M10/42 ,  H01M4/485 ,  H01M4/505 ,  B60L50/60 ,  H01G11/14 ,  H01G11/08 ,  H01G11/32

Abstract: A battery and supercapacitor system of a vehicle includes a lithium ion battery (LIB) disposed within a housing. The LIB includes: an electrolyte including lithium; and first and second electrodes disposed in the electrolyte. A supercapacitor is disposed within the housing and includes: the electrolyte; and third and fourth electrodes disposed in the electrolyte.

公开(公告)号：US20210050596A1

公开(公告)日：2021-02-18

申请号：US16817012

申请日：2020-03-12

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Li ,  Haijing Liu ,  Yong Lu ,  Mengyan Hou ,  Deween Kong

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/485 ,  H01M4/131

Abstract: A solid-state battery cell for a lithium ion battery is disclosed. The battery cell includes a first electrode; a second electrode; and an ionically conductive layer sandwiched between the first electrode and the second electrode. At least one of the first electrode and the second electrode includes an electronically conductive polymer (ECP). The at least one of the first electrode and the second electrode comprises about 20-98 weight percent (wt %) of an active material, about 0.1-30 wt % of the ECP, and about 5-70 wt % of an ionically conductive material that includes one or more of a solid-state electrolyte (SSE) material and a lithium salt.

公开(公告)号：US20210036385A1

公开(公告)日：2021-02-04

申请号：US16598244

申请日：2019-10-10

Applicant: GM Global Technology Operations LLC

Inventor： Yong Lu ,  Dewen Kong ,  Mengyan Hou ,  Zhe Li ,  Haijing Liu

IPC: H01M10/48 ,  H01M10/0525 ,  H01M4/1391 ,  H01M4/131

Abstract: An anode electrode with enhanced state of charge estimation is provided. The anode electrode comprises anode layer and a negative current collector. The negative current collector has a first side and a second side. The anode layer comprises lithium-titanium oxide and a second anode material (e.g. niobium-titanium oxide) disposed on at least one of the first and second sides of the negative current collector with single-layer or layer-by-layer coated structures. The second anode material (e.g. niobium-titanium oxide) can be physically blended with lithium-titanium oxide or be at least partially coated on the surface of lithium-titanium oxide or their combinations. The anode electrode further comprises a binder and a conductive carbon.