公开(公告)号：US11631900B2

公开(公告)日：2023-04-18

申请号：US17098976

申请日：2020-11-16

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Kent Snyder ,  Minghong Liu

IPC: H01M10/058 ,  H01M10/44 ,  H01M10/0525

Abstract: A method of producing a lithium-ion battery includes filling at least one cell of the battery with an electrolyte followed directly with a first step of sealing the at least one cell and a second step of applying pulsating compression to the at least one cell during formation charging, the pulsating compression comprising alternating a first time period of applying a first compression force F1 greater than zero and a second time period of applying a second compression force F2, wherein F1>F2, and the formation charging includes a first charge of the battery.

公开(公告)号：US11472309B2

公开(公告)日：2022-10-18

申请号：US16878199

申请日：2020-05-19

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Minghong Liu ,  Kent Snyder

IPC: B60L58/12 ,  B60L53/10 ,  B60L53/62

Abstract: A method for charging a traction battery of an electric vehicle includes, in response to a request to charge a traction battery, initially discharging the traction battery, for a first duration of time, according to a discharge stage having a constant power; subsequently charging the traction battery, for a second duration of time, according to a charge stage having a constant current; and repeating the discharge stage and the charge stage in sequence until the battery is charged.

公开(公告)号：US11177676B2

公开(公告)日：2021-11-16

申请号：US16451465

申请日：2019-06-25

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Minghong Liu ,  Kent Snyder

IPC: H02J7/00 ,  B60L53/14 ,  B60L58/15 ,  B60L53/62 ,  B60L53/30 ,  B60L58/24

Abstract: This disclosure describes exemplary charging systems and methods for fast charging energy storage devices (e.g., battery cells of battery packs). An exemplary charging system may be configured to control charging of a charging circuit by employing repetitive intermittent discharge pulses. The control system may be configured to command the charging circuit to apply a discharge pulse current to the battery cell for a first time period, apply a charging current to the battery cell for a second time period that is significantly longer than the first time period, and then repetitively alternate between applying the discharge pulse current and the charging current until the battery cell reaches a predefined maximum voltage.

公开(公告)号：US12191453B2

公开(公告)日：2025-01-07

申请号：US18184974

申请日：2023-03-16

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Kent Snyder ,  Minghong Liu

IPC: H01M10/058 ,  H01M10/0525 ,  H01M10/44 ,  H01M50/636

Abstract: A method of producing a lithium-ion battery includes filling at least one cell of the battery with an electrolyte followed directly with a first step of sealing the at least one cell and a second step of applying pulsating compression to the at least one cell during formation charging, the pulsating compression comprising alternating a first time period of applying a first compression force F1 greater than zero and a second time period of applying a second compression force F2, wherein F1>F2, and the formation charging includes a first charge of the battery.

公开(公告)号：US20240253524A1

公开(公告)日：2024-08-01

申请号：US18104350

申请日：2023-02-01

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Minghong Liu ,  Kent Snyder

IPC: B60L58/20 ,  B60L50/60 ,  B60L55/00 ,  B60L58/12 ,  H02J7/00 ,  H02J7/34

CPC classification number: B60L58/20 ,  B60L50/60 ,  B60L55/00 ,  B60L58/12 ,  H02J7/00711 ,  H02J7/00712 ,  H02J7/342

Abstract: A controller, responsive to a command to fast charge a traction battery, initiates a discharge pulse of the traction battery that charges an auxiliary battery, and following the discharge pulse, initiates a charge of the traction battery such that a voltage of the traction battery decreases to a peak minimum value during the discharge pulse and continually increases immediately after the peak minimum value without dwelling at a constant value to preclude rest of the traction battery between the discharge pulse and charge of the traction battery.

公开(公告)号：US20210362619A1

公开(公告)日：2021-11-25

申请号：US16878199

申请日：2020-05-19

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Minghong Liu ,  Kent Snyder

IPC: B60L58/12 ,  B60L53/62 ,  B60L53/10

Abstract: A method for charging a traction battery of an electric vehicle includes, in response to a request to charge a traction battery, initially discharging the traction battery, for a first duration of time, according to a discharge stage having a constant power; subsequently charging the traction battery, for a second duration of time, according to a charge stage having a constant current; and repeating the discharge stage and the charge stage in sequence until the battery is charged.

公开(公告)号：US20250087782A1

公开(公告)日：2025-03-13

申请号：US18463524

申请日：2023-09-08

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Minghong Liu ,  Hao Wu

IPC: H01M10/653 ,  H01M10/44 ,  H01M10/615 ,  H01M10/625

Abstract: A PCM with supercooling function may be used to release heat to warm a battery prior to fast charging by triggering a solidifying phase change in the PCM with supercooling function. A battery temperature management system may include a PCM with supercooling function in a temperature-modulating cell to supply heat to a battery prior to fast charging and to absorb heat during fast charging. A vehicle may include a battery and a PCM with supercooling function in a temperature-modulating cell to supply heat to the battery prior to fast charging and to absorb heat during fast charging.

公开(公告)号：US20250007098A1

公开(公告)日：2025-01-02

申请号：US18342224

申请日：2023-06-27

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Zijie Lu ,  Minghong Liu ,  Celia Cunningham

IPC: H01M50/46 ,  H01M4/66 ,  H01M50/431 ,  H01M50/44

Abstract: The present disclosure relates to a secondary solid-state battery. This battery includes a current collector, comprising a poly 3,4-ethylenedioxythiphene polystyrene sulfonate (PEDOT-PSS) layer, which is in direct areal contact with a negative electrode. The battery also includes a positive electrode and a solid electrolyte separator between the positive and negative electrodes. The PEDOT-PSS layer can compress and expand in response to the expansion and contraction of the negative electrode. In some embodiments, the current collector may include a carrier film onto which the PEDOT-PSS layer is coated. A cell stack of multiple assemblies further comprises the positive electrode, solid electrolyte separator, negative electrode, and current collector with some adjacent pairs separated by carbon fiber papers.

公开(公告)号：US20250006948A1

公开(公告)日：2025-01-02

申请号：US18342206

申请日：2023-06-27

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Zijie Lu ,  Minghong Liu ,  Celia Cunningham

IPC: H01M4/80 ,  H01M4/66 ,  H01M10/0525

Abstract: The present disclosure relates to a secondary solid-state battery, with a current collector configuration that includes a metal foam sandwiched between two microporous carbon layers. The current collector directly interfaces with both the negative electrode and the solid electrolyte separator. Alternatively, the current collector can comprise an elastomer sandwiched between a pair of metal foil layers, enabling responsive expansion and contraction in accordance with the electrodes' changes during charge-discharge cycles. Another embodiment contemplates a carbon fiber paper current collector situated between two microporous layers.