公开(公告)号：US11909243B2

公开(公告)日：2024-02-20

申请号：US16101946

申请日：2018-08-13

Applicant: DELL PRODUCTS L.P.

Inventor： Richard C. Thompson ,  Karunakar P. Reddy ,  Yan Ning

IPC: H02J7/00 ,  H01M10/48 ,  H02J7/02 ,  H01M10/42

CPC classification number: H02J7/0071 ,  H01M10/48 ,  H02J7/02 ,  H01M10/4257 ,  H02J7/00034

Abstract: Embodiments of information handling systems (IHSs) having rechargeable batteries and improved battery charge control methods are provided herein. For example, a method is disclosed for dynamically switching between a plurality of battery charging profiles, each having different recharge thresholds and charge termination thresholds for controlling battery recharge. Such a method may include detecting discharge current from a rechargeable battery of an IHS, determining whether or not the IHS is coupled to an external power source, and switching from using a first battery charging profile to using a second battery charging profile to recharge the rechargeable battery in response to detecting the discharge current while the IHS is coupled to the external power source and/or determining that the discharge current is a short term supplemental power event.

公开(公告)号：US11755088B2

公开(公告)日：2023-09-12

申请号：US16866299

申请日：2020-05-04

Applicant: Dell Products L.P.

Inventor： Qinghong He ,  Yan Ning ,  John Robert Lerma ,  Louis Michael Davis

IPC: G06F1/26 ,  H01M10/44 ,  H01M10/48 ,  H01M10/42

CPC classification number: G06F1/263 ,  H01M10/443 ,  H01M10/486 ,  H01M2010/4271 ,  H01M2010/4278

Abstract: A system and method for dynamically switching power supply in a dual battery system to minimize unbalanced wear levels in the primary and secondary batteries. If the operating temperature of the primary battery reaches a reliability temperature threshold but the operating temperature of the secondary battery is less than the reliability temperature threshold, the controller switches a primary battery indicator to designate the secondary battery as the primary battery. If the operating temperature of the primary battery reaches a pre-shutdown temperature but the operating temperature of the secondary battery is less than the pre-shutdown temperature, the controller switches a primary battery indicator to designate the secondary battery as the primary battery. If a difference between the wear levels of the batteries exceeds a wear level difference threshold, the controller switches a primary battery indicator to designate the secondary battery as the primary battery.

公开(公告)号：US20230344263A1

公开(公告)日：2023-10-26

申请号：US17660779

申请日：2022-04-26

Applicant: Dell Products L.P.

Inventor： Yan Ning ,  Bruce A. Miller ,  Wen-Yung Chang ,  Jui Chin Fang

IPC: H02J7/00

CPC classification number: H02J7/007188 ,  H02J7/0049 ,  H02J7/00712

Abstract: Adjusting a charging rate of battery of an information handling system, the method comprising: determining, at a first time, a first accumulation of time over a first time period that i) a state of charge (SOC) of the battery indicates that the battery is fully charged and that ii) the battery is connected to a power source; comparing the first accumulation of time with a time threshold; determining, based on the comparing, that the first accumulation of time is greater than the time threshold, and in response: decreasing a charging voltage of the battery from a nominal level to a first decreased level; charging the battery based on the charging voltage having the first decreased level;

公开(公告)号：US11380925B2

公开(公告)日：2022-07-05

申请号：US16830665

申请日：2020-03-26

Applicant: Dell Products L.P.

Inventor： Yan Ning ,  Philip Conde ,  Subramanian Vasudvan

IPC: H01M8/0662 ,  H01M8/0668 ,  H01M8/1004 ,  B01D71/02

Abstract: In one or more embodiments, a battery may include one or more cells and one or more enclosures that respectively enclose the one or more cells. For example, at least a portion of each enclosure of the one or more enclosures may include a zeolite material that is configured to permit first molecules associated with a first diameter to exit the enclosure and configured to inhibit second molecules associated with a second diameter, greater than the first diameter, from entering the enclosure. In one instance, the first molecules may include CO2 molecules. In another instance, the second molecules may include H2O molecules. In one or more embodiments, the zeolite material may be a DDR-type zeolite material. For example, the DDR-type zeolite material may be applied on a porous α-alumina substrate. In one or more embodiments, the battery may provide power to one or more components of an information handling system.

公开(公告)号：US11990782B2

公开(公告)日：2024-05-21

申请号：US17444772

申请日：2021-08-10

Applicant: Dell Products L.P.

Inventor： Yan Ning ,  Nikhil Manohar Vichare ,  Richard Christopher Thompson

IPC: H02J7/00 ,  G06F1/26

CPC classification number: H02J7/0048 ,  G06F1/26 ,  H02J7/00712

Abstract: Automatically updating a full charge capacity (FCC) of a battery of an information handling system, the method including: determining that the SOC of the battery is less than the SOC threshold; determining that the time since the previous update of the FCC of the battery is greater than the time threshold; identifying configuration parameters for an update of the FCC of the battery; comparing the configuration parameters with current conditions of the battery; based on comparing the configuration parameters with current conditions of the battery, determining that the current conditions of the battery are within bounds of the configuration parameters; and in response to determining that the current conditions of the battery are within the bounds of the configuration parameters, updating the FCC of the battery.

公开(公告)号：US20250138610A1

公开(公告)日：2025-05-01

申请号：US18500022

申请日：2023-11-01

Applicant: DELL PRODUCTS L.P.

Inventor： Farzad Khosrowpour ,  Yan Ning

IPC: G06F1/26

Abstract: An information handling system stores a knob table, and determines time series data for one or more applications being executed. The information handling system extracts features associated with the system, and determines a system type for the information handling system. The system determines a running average power level based on the time series data, the extracted features, and the system type. Based on the determined running average power level, the information handling system determines a configuration knob to optimize the system. The configuration knob is determined from the knob table in the memory.

公开(公告)号：US20240322586A1

公开(公告)日：2024-09-26

申请号：US18189161

申请日：2023-03-23

Applicant: DELL PRODUCTS L.P.

Inventor： Yan Ning ,  Jui Chin Fang ,  Wen-Yung Chang

IPC: H02J7/00 ,  H01M10/44

CPC classification number: H02J7/007182 ,  H01M10/441 ,  H02J7/00032 ,  H02J7/0013 ,  H02J7/0049

Abstract: Systems and methods are provided that may be implemented to automatically and intelligently re-activate battery cell/s of a battery system after the battery system has been subjected to relatively long term storage with the battery system inactive and unpowered by external power. The disclosed systems and methods may be so automatically implemented once external power is provided to the battery system and the battery system becomes active again. In one example, the disclosed systems and methods may be implemented on a battery-powered information handling system using logic executing on a programmable integrated circuit of a battery system (e.g., battery management unit “BMU”) of the information handling system and/or at the system level (e.g., such as embedded controller “EC”) of the information handling system.

公开(公告)号：US20230051221A1

公开(公告)日：2023-02-16

申请号：US17444772

申请日：2021-08-10

Applicant: Dell Products L.P.

Inventor： Yan Ning ,  Nikhil Manohar Vichare ,  Richard Christopher Thompson

IPC: H02J7/00 ,  G06F1/26

Abstract: Automatically updating a full charge capacity (FCC) of a battery of an information handling system, the method including: determining that the SOC of the battery is less than the SOC threshold; determining that the time since the previous update of the FCC of the battery is greater than the time threshold; identifying configuration parameters for an update of the FCC of the battery; comparing the configuration parameters with current conditions of the battery; based on comparing the configuration parameters with current conditions of the battery, determining that the current conditions of the battery are within bounds of the configuration parameters; and in response to determining that the current conditions of the battery are within the bounds of the configuration parameters, updating the FCC of the battery.

公开(公告)号：US20240283086A1

公开(公告)日：2024-08-22

申请号：US18172058

申请日：2023-02-21

Applicant: Dell Products L.P.

Inventor： Rick C. Thompson ,  Yan Ning

IPC: H01M50/30 ,  G06F1/16 ,  H01M50/105 ,  H01M50/136 ,  H01M50/211 ,  H01M50/247

CPC classification number: H01M50/394 ,  G06F1/1601 ,  G06F1/1635 ,  H01M50/105 ,  H01M50/136 ,  H01M50/211 ,  H01M50/247 ,  H01M2220/30

Abstract: A system can comprise a shell, one or more battery cells disposed within the shell, and a pressure-directing layer disposed between the battery cell(s) and the shell's interior surface. Each of the battery cell(s) can comprise an enclosure including a gas-impermeable portion and a venting portion configured to permit gas to exit the enclosure. The pressure-directing layer can comprise one or more openings that each overlie the venting portion of the enclosure of at least one of the battery cell(s). In some systems, the pressure-directing layer can have a thickness that is less than a distance between the battery cell(s) and the interior surface of the shell such that there is a space between the battery cell(s) and the interior surface of the shell. In some systems, the pressure-directing layer can be coupled to the battery cell(s) and the interior surface of the shell and comprise a resilient material.

公开(公告)号：US20230113227A1

公开(公告)日：2023-04-13

申请号：US17450316

申请日：2021-10-08

Applicant: Dell Products L.P.

Inventor： Bruce A. Miller ,  Wen-Yung Chang ,  Yan Ning ,  Jui-Chin Fang

IPC: H02J7/00 ,  H01M10/48 ,  H01M10/44

Abstract: Managing a battery of an information handling system, including determining a degradation factor of the battery based on one or more parameters of the battery; determining a first thermal stress time of the battery over a first time period, including: identifying a voltage of the battery over the first time period; identifying a temperature of the battery over the first time period; calculating the first thermal stress time of the battery over the first time period based on the voltage and the temperature of the battery over the first time period; comparing the first thermal stress time of the battery of the first time period to a time threshold, the time threshold based on the degradation factor of the battery; determining, based on the comparison, that the first thermal stress time of the battery is greater than the time threshold, and in response, adjusting a charge voltage of the battery.