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：US20230261246A1

公开(公告)日：2023-08-17

申请号：US17886579

申请日：2022-08-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili SU ,  Zhe LI ,  Jingyuan LIU ,  Meiyuan WU ,  Haijing LIU

IPC: H01M10/04 ,  H01M10/613 ,  H01M10/653 ,  H01M10/6567 ,  H01M10/625 ,  H01M50/507 ,  H01M50/207 ,  H01M50/249

CPC classification number: H01M10/0431 ,  H01M10/613 ,  H01M10/653 ,  H01M10/6567 ,  H01M10/625 ,  H01M50/507 ,  H01M50/207 ,  H01M50/249 ,  H01M2220/20

Abstract: A battery system comprises N folded bipolar batteries folded in an “S”-shaped configuration. First and second folded portions of each of the N folded bipolar batteries are arranged on opposite ends of the “S”-shaped configuration. First side portions and second side portions of each of the N folded bipolar batteries are arranged between the first and second folded portions. One or more of the first folded portions on a first one of the N folded bipolar batteries are in direct electrical contact with one or more of the second folded portions on a second one of the N folded bipolar batteries. One or more of the first side portions on a third one of the N folded bipolar batteries are in direct electrical contact with one or more of the second side portions on a fourth one of the N folded bipolar batteries.

公开(公告)号：US20220302526A1

公开(公告)日：2022-09-22

申请号：US17683976

申请日：2022-03-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: H01M10/6571 ,  H01M10/0525 ,  H01M10/615 ,  H01M4/80 ,  H01M4/66 ,  H01M10/0585

Abstract: The present disclosure provides a solid-state battery including at least one current collector that is in communication with one or more switches configured to move between open and closed positions, where the open position corresponds to a first operational state of the solid-state battery and the closed position corresponds to a second operational state of the solid-state battery; one or more electrodes disposed adjacent to the one or more current collectors; and one or more electrothermal material foils including a resistor material that is in electrical communication with that at least one current collector, where in the first operational state electrons may flow through the one or more electrothermal material foils during cycling of the solid-state battery so as to initiate a heating mode, and in the second operational state electrons may flow through the current collector during cycling of the solid-state battery so as to initiate a non-heating mode.

公开(公告)号：US20220021044A1

公开(公告)日：2022-01-20

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 ,  H02J7/00 ,  H01M10/615 ,  H01M10/625

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：US20240270121A1

公开(公告)日：2024-08-15

申请号：US18359411

申请日：2023-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jingyuan LIU ,  Qili SU ,  Dave G. RICH ,  Si CHEN ,  James MORRISON ,  Dewen KONG ,  Haijing LIU

IPC: B60L58/22 ,  B60L58/12 ,  B60L58/19

CPC classification number: B60L58/22 ,  B60L58/12 ,  B60L58/19 ,  B60L2240/547

Abstract: A state of charge (SOC) balancing system includes: first and second batteries; first and second capacitors; an SOC module configured to determine first and second SOCs of the first and second batteries, respectively; and a switching module configured to selectively, when the first SOC is greater than the second SOC: (i) electrically connect the first and second capacitors in parallel; (ii) electrically connect the first battery to the first and second capacitors while the first and second capacitors are electrically connected in parallel; (iii) electrically disconnect the first battery from the first and second capacitors; (iv) electrically connect the first and second capacitors in series; (v) electrically connect the second battery to the first and second capacitors while the first and second capacitors are electrically connected in series; and (vi) electrically disconnect the second battery from the first and second capacitors.

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：US20240059182A1

公开(公告)日：2024-02-22

申请号：US17986382

申请日：2022-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dave G. RICH ,  Aaron B. BLOOM ,  Wing-Fai HA ,  Dewen KONG ,  Jingyuan LIU

IPC: B60L58/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/24 ,  B60L58/18

CPC classification number: B60L58/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/24 ,  B60L58/18

Abstract: A battery system for a vehicle includes: a first positive terminal, a second positive terminal, and a negative terminal; switches; at least two battery modules each including at least three strings of battery cells that are 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, based on a derated state of the vehicle, adjust at least one of an upper limit for charging of the battery strings and a lower limit for discharging of the battery strings.

公开(公告)号：US20240055593A1

公开(公告)日：2024-02-15

申请号：US17980179

申请日：2022-11-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yong LU ,  Haijing LIU ,  Jingyuan LIU ,  Meiyuan WU ,  Dewen KONG

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/028

Abstract: The present disclosure provides an electrochemical device that cycles lithium ions. The electrochemical device includes at least one first cell unit and at least one second cell unit. The at least one first cell unit includes a nickel-rich positive electroactive material. The nickel-rich positive electroactive material can be represented by:


LiM1xM2yM3zM4(1-x-y-z)O2

where M1, M2, M3, and M4 are each a transition metal independently selected from the group consisting of: nickel, manganese, cobalt, aluminum, and combinations thereof, where 0≤x≤1, 0≤y≤1, and 0≤z≤1. The at least one second cell unit includes a phosphate-based positive electroactive material. The phosphate-based electroactive material can be selected from the group consisting of: lithium manganese iron phosphates (LiMnxFe1-xPO4, where 0≤x≤1) (LMFP), lithium vanadium oxygen phosphates (LixVOPO4, where 0≤x≤1), lithium vanadium phosphates, lithium vanadium fluorophosphates, and combinations thereof.

公开(公告)号：US20240012063A1

公开(公告)日：2024-01-11

申请号：US17889440

申请日：2022-08-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jingyuan LIU ,  Dave G. RICH ,  Manjit SWAMI ,  Charles W. WAMPLER, II ,  Dewen KONG

IPC: G01R31/392 ,  H02J7/00 ,  G01R31/3835 ,  B60L58/12 ,  B60L58/16 ,  B60L53/00

CPC classification number: G01R31/392 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/00712 ,  H02J7/0068 ,  G01R31/3835 ,  B60L58/12 ,  B60L58/16 ,  B60L53/00

Abstract: A state of health (SOH) based control system includes: a memory configured to store an algorithm including instructions for determining a SOH of a power source; and a control module configured to receive a voltage signal indicating a voltage of the power source and execute the instructions. The instructions include: determining a state of charge (SOC) of the power source; generating a differential signal based on a change in the voltage and a change in the state of charge; determining an inflection point and an end of charge point of the differential signal; determining the SOH of the power source based on the inflection point and the end of charge point; and performing at least one of a control operation or a countermeasure based on the SOH.

公开(公告)号：US20230155213A1

公开(公告)日：2023-05-18

申请号：US17542974

申请日：2021-12-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jingyuan LIU ,  Dewen KONG ,  Zhe LI ,  Meiyuan WU ,  Haijing LIU

IPC: H01M16/00 ,  H01M10/0525 ,  H01M50/51 ,  H01G11/08 ,  H01G11/52 ,  H01G11/58 ,  H01G11/56 ,  H01G11/28

CPC classification number: H01M16/00 ,  H01G11/08 ,  H01G11/28 ,  H01G11/52 ,  H01G11/56 ,  H01G11/58 ,  H01M10/0525 ,  H01M50/51

Abstract: A bipolar capacitor assisted battery includes a bipolar capacitor including a first capacitor, and a second capacitor. The second capacitor is connected in series with the first capacitor. A lithium ion battery is connected in parallel to the bipolar capacitor.