公开(公告)号：US20230223630A1

公开(公告)日：2023-07-13

申请号：US17647964

申请日：2022-01-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaofeng Yang ,  Jian Gao ,  Scott E Parrish

IPC: H01M50/211 ,  H01M10/6561

CPC classification number: H01M50/211 ,  H01M10/6561

Abstract: Systems and methods for responding to in a battery. A battery cell for a battery system includes a core of a known battery type, and a cell film having an initial thickness, the cell film configured as a pouch enclosing the core. The battery cell has at least one engraved groove in the cell film, the at least one engraved groove characterized by a groove thickness that is less than the initial thickness. The groove thickness configured to break open responsive to a predetermined gas pressure or target temperature in the pouch.

公开(公告)号：US20240162559A1

公开(公告)日：2024-05-16

申请号：US17986015

申请日：2022-11-14

Applicant: GM Global Technology Operations LLC

Inventor： Jian Gao ,  Xiaofeng Yang ,  Ronald O. Grover, JR. ,  Wei Zeng

IPC: H01M50/383 ,  B60L50/64 ,  H01M50/204 ,  H01M50/358

CPC classification number: H01M50/383 ,  B60L50/64 ,  H01M50/204 ,  H01M50/358 ,  B05B1/046 ,  H01M2200/00 ,  H01M2220/20

Abstract: A rechargeable energy storage system (RESS) including a thermal runaway propagation (TRP) mitigation system includes a housing including at least one outlet, a plurality of energy storage cells arranged in the housing, and at least one duct extending along the plurality of energy storage cells. The at least one duct is fluidically connected to the at least one outlet. A gas delivery system is arranged at the housing and includes a gas storage canister operable to deliver an amount of gas into the housing to purge combustible gases through the at least one outlet.

公开(公告)号：US20230040212A1

公开(公告)日：2023-02-09

申请号：US17392609

申请日：2021-08-03

Applicant: GM Global Technology Operations LLC

Inventor： Yue-Yun Wang ,  Jian Gao ,  Jeremie Dernotte ,  Scott E. Parrish

IPC: H01M10/48 ,  H01M10/42 ,  B60L58/26 ,  B60W50/14

Abstract: A method for detecting thermal runaway of a cell includes: positioning a battery pack having multiple cells in an automobile vehicle; measuring a cell voltage of the multiple cells at a predetermined sample rate; and identifying if the cell voltage decreases and modulates coincident with a cell surface temperature increase indicating initiation of a cell short.

公开(公告)号：US20230017290A1

公开(公告)日：2023-01-19

申请号：US17375753

申请日：2021-07-14

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Anthony Michael Coppola ,  Jian Gao ,  Derek Frei Lahr ,  Velmurugan Ayyanar ,  SeungHwan Keum

IPC: H01M10/6556 ,  H05K7/20 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/625 ,  H01M10/653 ,  H01M50/204 ,  H01M50/249

Abstract: According to several aspects of the present disclosure, a battery module housing cooling assembly is disclosed. The battery module housing cooling assembly can include an endwall including a first polymer plate and a second polymer plate that define a slot therebetween. At least one of the first polymer plate or the second polymer plate define a channel therein that is configured to receive a coolant fluid, and the slot is configured to receive an electrical connector. The battery module housing cooling assembly can also include a cooling plate defining a first connection port and a second connection port, wherein the first connection port and a second connection port are configured to provide the coolant fluid to the channel.

公开(公告)号：US10677204B1

公开(公告)日：2020-06-09

申请号：US16454134

申请日：2019-06-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert J. Moran ,  Jian Gao

IPC: F02M35/108 ,  F02M29/06 ,  F02M35/104 ,  F02B1/12 ,  F02B23/06

Abstract: An engine structure configured to a control swirl in a diesel engine combustion chamber and a diesel engine assembly including the engine structure defines first and second intake ports and a connecting passage connecting the first and second intake ports. The first intake port is in fluid communication with the combustion chamber and configured to direct a first intake airflow into the combustion chamber, and the second intake port is in fluid communication with the combustion chamber and configured to direct a second intake airflow into the combustion chamber. The connecting passage connects the first intake port to the second intake port and is defined by the engine structure outside of the combustion chamber.

公开(公告)号：US20230088026A1

公开(公告)日：2023-03-23

申请号：US17478297

申请日：2021-09-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaofeng Yang ,  Jian Gao ,  Scott E. Parrish

IPC: B60L58/26 ,  H01M10/613 ,  H01M10/625 ,  H01M10/44 ,  B60L3/00

Abstract: A control system to prevent thermal runaway includes an enclosure housing a plurality of battery cells of a battery module. Each of the battery cells is a pouch-type battery cell includes a core and a pouch enclosing the core and including one or more portions along one or more side surfaces thereof that are attached together by adhesive to form a seal. The adhesive is configured to release the seal when pressure within the pouch exceeds a predetermine pressure value. A gas sensor is configured to sense a predetermined gas in the enclosure. A valve is configured to selectively deliver thermal control fluid from a source. A controller is configured to open the valve in response to the gas sensor sensing the predetermined gas in the enclosure.

公开(公告)号：US20200370501A1

公开(公告)日：2020-11-26

申请号：US16418566

申请日：2019-05-21

Applicant: GM Global Technology Operations LLC

Inventor： Alberto Lorenzo Vassallo ,  Jian Gao

IPC: F02F1/42 ,  F02M35/108

Abstract: An apparatus that controls a swirl ratio in a diesel engine for a motor vehicle includes a first intake port that directs a first airflow into a combustion chamber, and a second intake port that directs a second airflow into the combustion chamber. The first and second intake ports are arranged to direct the first airflow and the second airflow such that a desired swirl ratio is achieved in the combustion chamber.

公开(公告)号：US12107285B2

公开(公告)日：2024-10-01

申请号：US17647964

申请日：2022-01-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaofeng Yang ,  Jian Gao ,  Scott E Parrish

IPC: H01M50/211 ,  H01M10/6561

CPC classification number: H01M50/211 ,  H01M10/6561

Abstract: Systems and methods for responding to in a battery. A battery cell for a battery system includes a core of a known battery type, and a cell film having an initial thickness, the cell film configured as a pouch enclosing the core. The battery cell has at least one engraved groove in the cell film, the at least one engraved groove characterized by a groove thickness that is less than the initial thickness. The groove thickness configured to break open responsive to a predetermined gas pressure or target temperature in the pouch.

公开(公告)号：US20240310445A1

公开(公告)日：2024-09-19

申请号：US18185482

申请日：2023-03-17

Applicant: GM Global Technology Operations LLC

Inventor： Yue-Yun Wang ,  Jian Gao ,  Shengbing Jiang

IPC: G01R31/367 ,  G01R31/392 ,  H01M10/0525 ,  H01M50/204 ,  H01M50/51

CPC classification number: G01R31/367 ,  G01R31/392 ,  H01M10/0525 ,  H01M50/204 ,  H01M50/51 ,  H01M2220/20

Abstract: A Thevenin equivalent model of a lithium-ion battery cell provides the basis for a simplified cell diagnostic relying on cell current and cell terminal voltage measurements.

公开(公告)号：US20240145858A1

公开(公告)日：2024-05-02

申请号：US17973933

申请日：2022-10-26

Applicant: GM Global Technology Operations LLC

Inventor： SeungHwan Keum ,  Ronald O. Grover, JR. ,  Jian Gao ,  Xiaofeng Yang

IPC: H01M50/375 ,  B60L50/64 ,  H01M10/48 ,  H01M50/249

CPC classification number: H01M50/375 ,  B60L50/64 ,  H01M10/486 ,  H01M50/249 ,  B60L58/24 ,  H01M2220/20

Abstract: A rechargeable energy storage system (RES S) including a thermal runaway propagation (TRP) mitigation system includes a housing having at least one outlet, a plurality of energy storage cells arranged in the housing, and at least one duct extending along the plurality of energy storage cells. The at least one duct is fluidically connected to the at least one outlet. A gas delivery system including a gas generation system is operable to deliver an amount of inert gas into the housing to purge gases from one or more of the plurality of energy storage cells through the at least one outlet.