Dell Products Inc.

Bruce A Miller

Richard Christopher Thompson

Nikhil Manohar Vichare

John J Breen

Ligong Wang

Chris Morrow Young

Jay L Taylor

Stephen Sterz

Maureen Emily Martinez

Marc Allan Richmond

Adolfo Sandor Montero

Andrew Thomas Sultenfuss

Shiguo Luo

William Sauber

Rocco Ancona

Claude Lano Cox

Wen-Yung Chang

Muhammed K Jaber

Yan Ning

Rick Christopher Thompson

Jui Chin Fang

Edwin Coleman Tinsley

Fu-Sheng Tsai

Jeff Alan Rose

Shirish Gupta

Margaret G Reed-Lade

Larry White

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.

Adjusting a charging rate of a battery of an information handling system

An information handling system may include a main processor, a battery, multiple temperature sensors for obtaining temperature values associated with the battery, a processor, and memory media accessible to the processor. The memory media may store instructions executable by the processor for receiving a respective temperature value from each of the temperature sensors and calculating a battery temperature distribution value dependent on the received temperature values, including determining a difference between two temperature values. The instructions may be further executable for determining a respective value for each of one or more battery control parameters dependent on the battery temperature distribution value, and setting each of the battery control parameters to the determined value. Determining the control parameters values may be further dependent on the rate of change of the difference between the two temperature values, or on whether the received temperatures or the temperature difference lie outside a predetermined range.

Battery management using battery temperature distribution

A battery pack bussing plate, method, and system for providing battery vendor identification capable of surviving a thermal failure event of a battery pack for an information handling system. By receiving a designation of a distinctive current director shape of an extended current director, the extended current director comprising a current director with at least one extension at an angle to a line between a first terminus of the current director and a second terminus of the current director, the distinctive director shape adapted to uniquely identify a battery pack vendor, and transforming sheet metal stock into a battery pack bussing plate, the battery pack bussing plate defining the extended current director, a battery vendor can be identified from a battery pack even after thermal failure of the battery pack.

Battery pack bussing plate with weld projection geometry as an identification key

A computer-implemented method enables capacity based pre-charging and age based permanent failure detection in a battery. The method comprises detecting, via a controller, a real time cell voltage for at least one cell in the battery. The controller determines if the real time cell voltage is less than a normal operating cell voltage. In response to the real time cell voltage being less than the normal operating cell voltage, a capacity based pre-charge value is calculated based on a full charge capacity and at least one cell parameter of the cell. A pre-charge time is calculated based on the capacity based pre-charge value. A pre-charge voltage is identified. The battery management controller is triggered to pre-charge the battery using the calculated pre-charge time and the identified pre-charge voltage.

Battery management system and method for charging lithium-ion battery cells in an information handling system

Embodiments of methods for preventing internal short circuits in a lithium-ion battery cell. In an embodiment, a method of manufacturing a lithium-ion battery cell may include providing a cathode, providing an anode, providing a separator disposed between the cathode and the anode, and covering an edge of the cathode to prevent a short between the cathode and the anode through the separator. The method may also include winding the cathode, the anode, and the separator into an electrode roll.

Preventing internal short circuit in a lithium-ion battery cell

Systems and methods for simultaneously charging two or more cell strings of a hybrid battery system from a shared input current path to the battery system. An input common charging current may be limited to the smallest maximum allowable charging current value of multiple battery cell strings of a hybrid battery system, or may be provided as the greater of the maximum allowable charging currents of multiple battery cell strings of a hybrid battery system with current supplied to individual cell strings that require less than the maximum current being individually controlled so as not to exceed the maximum allowable current for each of the individual cell strings of the hybrid battery system.

Systems and methods for configuring and charging hybrid battery systems

Usage data monitored at information handling systems is collected and analyzed to provide a basis for component selection for information handling systems by associating components with end user usage profiles. For example, a monitor tracks usage data at an end user information handling system and determines that the end user's usage falls within usage pattern defined by analysis of plural other end users. The end user is directed towards selection of components associate with the defined usage pattern to replace components of the information handling system or for use in a replacement information handling system. Analysis on an enterprise-wide basis helps an enterprise to allocate components and information handling systems to end users of an enterprise.

System and method for customizing information handling system internal power source and service offerings based on usage profiles

A method for shipping a battery assembly includes providing a plurality of battery subassemblies. The plurality of battery subassemblies are operable to be mechanically and electrically connected together to form a battery assembly. The battery subassemblies are provided to be shipped such that an additional shipping fee that would be incurred due to a battery characteristic that is not based on the weight of the battery assembly is not incurred. The method includes shipping a first battery subassembly and a second battery subassembly such that the additional shipping fee that would be incurred due to the battery characteristic that is not based on the total weight of the battery assembly is not incurred.

Information handling system including battery assembly having multiple separable subassemblies

Systems and methods are provided to prevent separator failure in wound battery structures. The systems and methods employ reinforcing material that is attached or otherwise positioned relative to one or more battery structure components in area/s adjacent to a separator of a layered battery structure. The reinforcing material may be positioned relative to one or more battery structure components in a manner that reinforces or otherwise protects the area/s of the battery structure so as to reduce or substantially prevent occurrence of a conductive breach between negative active electrode material and positive active electrode material of the layered battery structure.

Systems and methods for internal short circuit protection in battery cells

A battery assembly includes a plurality of battery subassemblies. The battery subassemblies are operable to be mechanically and electrically connected together to form a battery assembly and are provided to be shipped such that an additional shipping fee that would be incurred due to a battery characteristic that is not the total weight of the battery assembly is avoided. The plurality of battery subassemblies includes a first battery subassembly and a second battery subassembly. The first battery subassembly includes a first subassembly to subassembly electrical connector, a first subassembly to subassembly mechanical connector, and a device power connector operable to supply power to a battery powered device. The second battery subassembly is operable to be electrically and mechanically connected to the first battery subassembly and includes a second subassembly to subassembly electrical connector for electrically connecting to the first subassembly to subassembly electrical connector of the first battery subassembly and a second subassembly to subassembly mechanical connector for mechanically connecting to the first subassembly to subassembly mechanical connector of the first battery subassembly.

Information handling system errors are presented at a display with the information handling system graphics subsystem inoperative by communicating an identified error to the display through an auxiliary channel and generating a presentation of the error information with a microcontroller of the display. For example, errors determined by BIOS firmware running on a chipset are communicated through a DDC or I2C channel from the chipset to the display so that textual error messages are generated at the display without the use of the information handling system's graphic processor to generate an error message image.

System and method for auxiliary channel error messaging

Systems and methods for detection of charge switching element failure (e.g., charge FET switching element) in a battery system, such as a battery system of an information handling system (e.g. notebook computer), in which an increase in cell voltage is employed as a criteria for detecting charge switching element failure.

Systems and methods for detecting charge switching element failure in a battery system

A bus monitoring device includes a detector to detect a signal on the bus. The signal is initiated by one of a plurality of devices coupled to the bus. A clamp circuit is included to clamp the signal to a first predefined level in response to the signal being initiated by a first device of the plurality of devices. A comparator circuit compares the signal and a voltage reference to determine whether the first device initiated the signal.

Growing community of inventors

Plano, TX, United States of America

Bruce A Miller