Abstract: A switch module with an automatic switching function and a method for automatically switching the switch module according to the load, wherein a first comparator and a second comparator are configured to automatically determine whether the load is light or heavy according to the voltage divided by a first resistor and a second resistor and the voltage of a source resistor, thereby generating a voltage control signal. A plurality of transistors are configured to receive a gate input signal according to the voltage control signal, thereby selectively bringing a GaN transistor or a MOSFET transistor in a conducting state. In this way, the output quality and efficiency of the power supply at light and heavy loads can be improved according to the characteristics of different transistors.

Abstract: A method of transmitting mobile device battery data, comprises: displaying a graphical user interface on a user's mobile device to receive battery data sharing permissions for the mobile device; receiving, via the graphical user interface, the permissions; calling a battery application program interface; receiving, from the battery application program interface, battery data of the user's mobile device; and transmitting the received battery data to another mobile device based on the received permissions.

Abstract: A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and/or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and/or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

Abstract: A battery booster for jumpstarting a vehicle having an external battery. The battery booster may include a processor, a set of terminal connectors, a power supply, and a power-management circuit. The set of terminal connectors may be configured to couple with the external battery or an engine that is electrically coupled with the external battery. The power supply may include a lithium battery configured to supply a starting current to jump start an engine. The external battery may have a first nominal voltage, while the lithium battery may have a second nominal voltage that is greater than the first nominal voltage. The power-management circuit operatively coupled with the at least one processor, wherein the at least one processor is configured to transfer power selectively between the external battery and the power supply. The processor is configured to perform a pre-charge function and/or a back-feed function via the power-management circuit, which may employ a pulse width modulation (PWM) driver.

Abstract: A method of transmitting mobile device battery data, comprises: displaying a graphical user interface on a user's mobile device to receive battery data sharing permissions for the mobile device; receiving, via the graphical user interface, the permissions; calling a battery application program interface; receiving, from the battery application program interface, battery data of the user's mobile device; and transmitting the received battery data to another mobile device based on the received permissions.

Abstract: A virtual image display system, including a handheld electronic device having a first battery and a virtual image display having a second battery, is provided. The handheld electronic device and the virtual image display are coupled to each other. The handheld electronic device is used to calculate a power supply time of the first battery; calculate an expected discharge time of the second battery under a discharge condition; compare the power supply time and the expected discharge time to generate a comparison result; and adjust a supply current provided by the first battery to the virtual image display according to the comparison result.

Abstract: An electric aircraft battery pack that includes an integrated battery management component, which determines if a power supply connection between the battery pack and the electric aircraft should be terminated due to a failure, defect, or malfunction of the battery pack, such as a failure of a battery module of the battery pack.

Abstract: A power prediction system includes a battery removably mounted on an electric power device using electric power, a charging device configured to charge the battery, and a power prediction device configured to predict an amount of electric power capable of being supplied by the charging device to outside of the charging device through machine learning on the basis of usage information indicating at least one of the usage state and the usage environment of the charging device.

Abstract: An electrochemical battery system includes at least one electrochemical cell, a thermal control system operably connected to the at least one electrochemical cell, a memory in which a physics-based model of the at least one electrochemical cell is stored and in which program instructions are stored, and a controller operably connected to the at least one electrochemical cell, the thermal control system and the memory. The controller is configured to execute the program instructions to identify a first requested operation, obtain a first generated target temperature which is based on the physics-based model and the identified first requested operation, and control the thermal control system based upon the obtained first target temperature while controlling the at least one electrochemical cell based upon the identified first requested operation.

Abstract: A method for charging a battery that is a non-aqueous electrolyte secondary battery includes first and second steps. The first step is estimating an SOC of the battery based on at least one of a voltage and a current of the battery. The second step is, based on a relationship between the SOC of the battery and an entropy change ?S, determining a maximum charging current to the battery in accordance with the SOC of the battery such that the maximum charging current becomes larger as the entropy change of the battery becomes greater.

Abstract: A method of transmitting mobile device battery data, comprises: displaying a graphical user interface on a user's mobile device to receive battery data sharing permissions for the mobile device; receiving, via the graphical user interface, the permissions; calling a battery application program interface; receiving, from the battery application program interface, battery data of the user's mobile device; and transmitting the received battery data to another mobile device based on the received permissions.

Abstract: A method, system and device for active balance control of a battery pack are disclosed. The method includes: calculating a reference balance current ratio of a battery cell to a battery pack in each batch; calculating an actual balance current ratio of the battery cell to the battery pack at each moment in any batch; allowing the actual balance current ratio to track the reference balance current ratio of the corresponding batch in real time by executing a preset tracking algorithm; and performing balance control on the battery pack according to a tracking result. The system includes a first calculation module, a second calculation module, a tracking module, and a balance control module. The device includes a memory and a processor.

Abstract: A battery device includes a storage battery unit, a current sensing unit, a temperature sensing unit, a storage unit and a processing unit. The current sensing unit detects load current. The temperature sensing unit detects the battery temperature of the storage battery unit. The storage unit stores a cycle number, multiple threshold intervals, and multiple charging voltage values. According to the load current, the battery temperature and the cycle number, the depth of discharge of the storage battery is acquired. The storage unit stores the load current, the battery temperature and the cycle number. The processing unit operates a charging procedure. The charging voltage value corresponding to the working threshold interval is selected to be the main charging voltage value, and the DC voltage that is identical to the main charging voltage value is used to perform a constant voltage charge for the battery unit.

Abstract: A fuel gauge system for measuring the amount of current in a battery is provided. The fuel gauge system includes a first resistive element connected in series to the battery, a second resistive element connected in series to the first resistive element, a first switch connected in parallel to the second resistive element to control a current flowing in the second resistive element, a second switch connected in series to the second resistive element to control the current flowing in the second resistive element, a controller configured to output a first switching signal to the first switch and output a second switching signal to the second switch, and a fuel gauge circuit configured to measure a battery current flowing in the first resistive element and the second resistive element.

Abstract: Disclosed is a battery management method and apparatus that selects a function to be verified from functions of the battery management apparatus, transmits input information used to obtain an execution result information of the selected function to at least one counterpart battery management apparatus, receives, from the counterpart battery management apparatus, reference battery information that is generated by the counterpart battery management apparatus based on the input information, and determines whether an abnormality is present in the selected function based on the execution result information and the received reference battery information.

Abstract: A control device on a power receiving side includes a charging portion that charges a battery based on power that is received by a power receiving portion that receives power from a power transmitting device, a control portion 54 that performs charging control, and a nonvolatile memory. The nonvolatile memory stores status information of the battery, and the control portion performs charging control based on the status information stored in the nonvolatile memory.

Abstract: The present invention relates to a battery management system, and to a battery management system, in which a voltage measuring unit measuring a voltage of a battery and a control unit controlling the battery based on the measured voltage value are separated in a battery management controller included in an existing battery management system and the voltage measuring unit is included in the battery disconnecting unit, thereby preventing insulation resistance between the voltage measuring unit and the control unit from being decreased.

Abstract: Disclosed examples include systems and methods for determining an internal short condition in a battery. The method includes computing an estimated current value based on a measured battery voltage, a measured battery current, a measured battery temperature, and a model of the battery that includes steady state characteristics of the battery and transient characteristics of the battery. The method further includes computing an internal short current value according to the measured battery current and the estimated current value, and determining if a battery short condition exists according to the internal short current value.

Abstract: A method to control storage into and depletion from multiple energy storage devices. The method enables an operative connection between the energy storage devices and respective power converters. The energy storage devices are connectable across respective first terminals of the power converters. At the second terminals of the power converter, a common reference is set which may be a current reference or a voltage reference. An energy storage fraction is determined respectively for the energy storage devices. A voltage conversion ratio is maintained individually based on the energy storage fraction. The energy storage devices are stored individually with multiple variable rates of energy storage through the first terminals. The energy storage is complete for the energy storage devices substantially at a common end time responsive to the common reference.

Abstract: A battery state detection device detects a battery state and includes: a first permissible current calculating unit configured to calculate a first permissible current of a battery based on a voltage of the battery detected by a voltage detecting unit; a second permissible current calculating unit configured to calculate a second permissible current of the battery without using the voltage of the battery; and a permissible current determining unit configured to determine a permissible current of the battery corresponding to the battery state on the basis of at least one of the first permissible current and the second permissible current.

Abstract: A battery pack includes an electrode assembly having a cathode, an anode, and a separator interposed therebetween, a first pack case having the electrode assembly and an electrolyte disposed therein, a second pack case with the first pack case disposed therein and a portion of the interior surface separated from the first pack case exterior surface, a fire extinguishing agent disposed between the exterior surface of the first pack case and the interior surface of the second pack case and a cap assembly that simultaneously seals an open surface of the first and second pack cases when the first pack case is disposed in the second pack case. A first venting portion is configured to open to enable the fire extinguishing agent to flow into the interior of the first pack case when the pressure within the first pack case is equal to or greater than a critical pressure.

Abstract: The disclosure provides a battery which can include a power supply and power supply circuit, the power supply circuit connected to the power supply. The power supply can discharge through the power supply circuit. An electronic switch can control the power-on or off of the power supply, thereby avoiding the generation of sparks during the power on process and allowing for the normal use of the battery and the safety of the aircraft. The disclosure also provides an aircraft having the battery.

Abstract: A device includes an interface and a processor. The interface receives information for a parameter indicative of a status of a battery. The processor calculates a remaining capacity of the battery, calculates a capacity ratio of the calculated remaining capacity to a capacity reference of the battery, compares the parameter with a parameter reference to generate a first comparison result, compares the capacity ratio with a ratio reference to generate a second comparison result, sets an amount according to the first and second comparison results, and changes the calculated remaining capacity by the amount.

Abstract: The disclosure provides a battery which can include a power supply and power supply circuit, the power supply circuit connected to the power supply. The power supply can discharge through the power supply circuit. An electronic switch can control the power-on or off of the power supply, thereby avoiding the generation of sparks during the power on process and allowing for the normal use of the battery and the safety of the aircraft. The disclosure also provides an aircraft having the battery.

Abstract: An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes a memory for storing data related to the operation of the battery, and the battery management system is also configured to communicate the data related to the operation of the battery to other processors for analysis.

Abstract: A method and apparatus for measuring a voltage of a battery pack are provided. A battery control apparatus may include a voltage distributor configured to distribute a voltage of a battery pack including battery modules, using distribution elements connected to the battery pack, and a voltage extractor configured to extract a voltage value of the voltage of the battery pack by measuring the distributed voltage.

Abstract: A method and a related terminal for displaying battery power to improve accuracy of displaying battery power. The method includes acquiring a power increase of a battery according to a preset time interval when the battery enters a charging state, where the battery has completed discharging before entering the charging state, acquiring power stored in the battery and an open circuit voltage OCV of the battery at a time when the acquired power increase of the battery reaches a preset threshold, generating an Open Circuit Voltage-State Of Capacity (OCV-SOC) curve according to the acquired power stored in the battery and the acquired OCV when the battery completes charging, and displaying the battery power according to the generated OCV-SOC curve.

Abstract: System and methods for determining battery system energy capability in a vehicle are presented. A voltage offset of a battery system may be determined based on comparison of an open circuit voltage of the battery system and a measured voltage. An estimated remaining pack energy may be determined based, at least in part, on the voltage offset. Similarly, an estimated total pack energy may be determined based, at least in part, on the voltage offset. An energy capability of the battery system may be determined based on the estimated remaining pack energy and the estimated total pack energy.

Abstract: Systems and methods may place a battery in a first constant voltage charging mode and monitoring a diminishing current of the battery while the battery is in the first constant voltage charging mode. Additionally, the battery may be placed in a constant current charging mode when the diminishing current falls to a first predetermined threshold. In one example, a rising voltage of the battery is monitored while the battery is in the constant current charging mode and the battery is placed in a second constant voltage charging mode at an end of the charge cycle in response to the rising voltage reaching a second predetermined threshold. Moreover, a charge current corresponding to the constant current charging mode may be adjusted based on a charge capacity of the battery.

Abstract: A battery management controller includes input channels to receive a voltage signal from a battery and output channels to provide diagnostic signals to an operator. The controller is programmed to output a diagnostic signal predictive of a thermal condition in response to the voltage decreasing at a rate greater than a predetermined rate that signals that the voltage is decreasing toward a local minimum that precedes an increase in the voltage indicative of a battery temperature increase rate becoming greater than a threshold. The diagnostic signal may be used to alert the operator of the condition. The controller may be further programmed to issue commands to mitigate the thermal condition based on the diagnostic signal.

Abstract: A storage battery capacity measurement device is provided in in-plant equipment including a storage battery system connected to an intra-equipment electric wire. The storage battery system includes plural storage batteries connected in parallel to the intra-equipment electric wire. The storage battery capacity measurement device is configured to execute a determining one storage battery among the plural storage batteries as a measurement target storage battery, and at least one storage battery other than the measurement target storage battery as a measurement support storage battery, discharging an electricity amount of the measurement target storage battery from an upper limit to a lower limit, and charging the discharged electricity amount to the measurement support storage battery, and calculating a discharge capacity of the measurement target storage battery, based on an integrated value of a current flowing through the measurement target storage battery during discharge.

Abstract: A battery class determination device includes a detector for sensing a terminal voltage and charge/discharge currents of a lead storage battery, an inner resistance calculator for calculating a direct-current inner resistance of the lead storage battery based on the terminal voltage and the charge or discharge current sensed by the detector, and a class determiner. The inner resistance calculator calculates, at a switchover between a discharge control and a charge control over the lead storage battery, a direct-current inner resistance in a first period before the switchover, and a direct-current inner resistance in a second period after the switchover. The class determiner determines a class of the lead storage battery based on the direct-current inner resistance in the first period and the direct-current inner resistance in the second period.

Abstract: A battery management system is provided, which may include a power supply module, a measurement module, a switch module and a processing module. The power supply module may be electrically coupled to a load or a charging power source via the switch module. The measurement module may measure a plurality of operation signals from the power supply module. The processing module may determine the operation status of the power supply module by cross comparison between the operation signals, and activate a safety protection item according to the operations signals and the operation status; the processing module may determine to activate a global protection process to turn off the switch module or activate a local protection process to turn off the switch module after a buffer time according to the danger level of the safety protection item.

Abstract: Method and apparatus for powering electric motors. The electric motors are connected to a DC power supply by a parallel modular converter that includes a plurality of parallel power converters that convert the DC power to AC power. The parallel modular converter selectively connects different parallel power converters to different ones of the electric motors to provide an adequate supply of electrical power to meet the load conditions of the electric motor. As the load conditions of the electric motors dynamically change, the parallel modular converter can selectively connect certain PPCs to different motors to satisfy the changing load conditions.

Abstract: A gauging method for a battery discharge-capacity corresponding to a temperature includes steps of detecting a temperature of a battery module of an electronic device according to a predetermined condition; detecting an internal impedance of the battery module and estimating the battery discharge-capacity of the battery module according to the internal impedance if the temperature meets the predetermined condition; and detecting an output current and a voltage of the battery module according to the temperature and calculating the battery discharge-capacity of the battery module according to the temperature, the voltage and the output current if the temperature does not meet the predetermined condition.

Abstract: Disclosed is a chargeable device having a processing circuitry configured to detect a voltage level at a first point of the processing circuitry. The first point is electrically coupled via a first resistor to a source of measurement signal and via a diode to a second point. The second point being electrically coupled via a second resistor to a first charger contact of the chargeable device and via a third resistor to a second charger contact of the chargeable device. The processing circuitry is configured to determine, from the voltage level detected at the first point, whether or not the first charger contact and the second charger contact of the chargeable device are electrically connected to a charger and whether or not the charger is energized.

Abstract: Methods and apparatuses for determining a state of charge of a battery are provided, wherein measurements of a terminal voltage of the battery and stored precharacterization parameters are used for determining the state of charge.

Abstract: This battery state determination device (10) is provided with: a voltage detection unit (13) that detects the voltage (V) of a rechargeable battery (M) to be evaluated; a current detection unit (12) that detects the current of the rechargeable battery (M); a charge state detection unit (11) that detects the state of charge (SOC) of the rechargeable battery (M); and a determination unit (11) configured so as to calculate the absolute value of the voltage gradient (G), which indicates the change in voltage with respect to the discharge amount (Ah), when the state of charge (SOC) of the rechargeable battery (M) is less than 40%, compare the absolute value of the voltage gradient (G) to a pre-set upper limit value (Gmax), and, when the absolute value of the voltage gradient (G) is greater than the upper limit value (Gmax), determine that a small short circuit has occurred in the rechargeable battery (M).

Abstract: A method for determining an average value of a periodic or quasi-periodic voltage signal that can be transmitted on a communication bus with a transmission period greater than the period of the signal. The method includes acquiring measurements of the signal with a measurement period corresponding to the transmission period of the average value on the bus, obtaining the average value from the acquired measurements, applying, for each measurement, a variable delay, defining a time of measurement within the measurement period, relative to a reference time, and obtaining the average value from the result of the measurement made at each time of measurement and from the results of the measurements made previously.

Abstract: To efficiently control charging and regenerative control for a secondary battery.

Abstract: An impedance measuring device outputs an alternating current of a prescribed frequency to a positive electrode terminal and a negative electrode terminal of the laminated type battery. The impedance measuring device detects an alternating-current potential difference between the positive electrode terminal and an intermediate-point terminal, and an alternating-current potential difference between the negative electrode terminal and the intermediate-point terminal. The impedance measuring device adjusts an amplitude of the alternating current such that the alternating-current potential difference between the positive electrode terminal and the intermediate-point terminal, and the alternating-current potential difference between the negative electrode terminal and the intermediate-point terminal coincide. The impedance measuring device computes an impedance of the laminated type battery on the basis of the alternating current adjusted and the alternating-current potential difference.

Abstract: A manufacturing method according to the present invention is a method for manufacturing a nonaqueous electrolyte secondary battery including graphite as a negative-electrode active material. The manufacturing method includes: a step of assembling the battery including a positive electrode and a negative electrode; and a step of performing an initial charging process of performing first charging on the battery. In the initial charging process, charging is performed at a relatively large first current value when a gas generation amount caused in the battery during the charging does not depend on a charging current value, and the charging is performed at a second current value smaller than the first current value when the gas generation amount depends on the charging current value.

Abstract: An impedance measuring device outputs an alternating current of a prescribed frequency to each of a positive electrode terminal and a negative electrode terminal of a laminated type battery and detects an alternating-current potential difference between the positive electrode terminal and an intermediate-point terminal and an alternating-current potential difference between the negative electrode terminal and the intermediate-point terminal. The impedance measuring device adjusts an amplitude of the alternating current such that the alternating-current potential difference between the positive electrode terminal and the intermediate-point terminal and the alternating-current potential difference between the negative electrode terminal and the intermediate-point terminal coincide, and computes an impedance on the basis of the adjusted alternating current and alternating-current potential differences.

Abstract: A method for estimation of state-of-health (SOH) characteristics of a battery in hybrid vehicles includes charging and discharging the battery at least one time within an upper region of a state-of-charge (SOC) window, wherein the battery; charging and discharging the battery at least one time within a lower region of the SOC window, calibrating a battery management unit included in the hybrid vehicle by using the reached levels outside the SOC window, and estimating the SOH characteristics of the battery during the charge and discharge periods by using the battery management unit.

Abstract: An energy storage device comprises a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode has a negative substrate layer, and a negative composite layer arranged on the surface of the negative substrate layer. The separator has a separator substrate layer. The negative composite layer contains a non-graphitizable carbon having a particle diameter D50 of 2.0 ?m or more and 6.0 ?m or less. A corrected negative electrode density, which is defined as a value obtained by dividing, by a thickness of the separator substrate layer, a value obtained by multiplying a density of the negative composite layer by a thickness of the negative composite layer, is 1.2 (g/cm3) or more and 5.1 (g/cm3) or less.

Abstract: A method and apparatus for wireless device power management is provided. The method comprises providing a charge to an intermediate power cell by electrically connecting the intermediate power cell to a power source, disconnecting the intermediate power cell from the power source, and electrically connecting the wireless device to the intermediate power cell. Such electrical connecting enables power cell recharging within the wireless device.

Abstract: The disclosure provides a battery which can include a power supply and power supply circuit, the power supply circuit connected to the power supply. The power supply can discharge through the power supply circuit. An electronic switch can control the power-on or off of the power supply, thereby avoiding the generation of sparks during the power on process and allowing for the normal use of the battery and the safety of the aircraft. The disclosure also provides an aircraft having the battery.

Abstract: A method to control storage into and depletion from multiple energy storage devices. The method enables an operative connection between the energy storage devices and respective power converters. The energy storage devices are connectible across respective first terminals of the power converters. At the second terminals of the power converter, a common reference is set which may be a current reference or a voltage reference. An energy storage fraction is determined respectively for the energy storage devices. A voltage conversion ratio is maintained individually based on the energy storage fraction. The energy storage devices are stored individually with multiple variable rates of energy storage through the first terminals. The energy storage is complete for the energy storage devices substantially at a common end time responsive to the common reference.

Abstract: Disclosed is a battery charging management system of an automated guided vehicle that travels in an unpiloted manner by using a mounted battery as a driving source, the mounted battery being charged in a charging station, wherein a battery charging controller that monitors a remaining capacity of the mounted battery is mounted on the automated guided vehicle, the battery charging controller starts a charging operation for the mounted battery in the charging station when the remaining capacity of the battery is lower than a predetermined value, and a charging route of the vehicle is cut off when a charging amount of the mounted battery reaches a predetermined capacity during the charging operation.

Abstract: A method of determining the state of charge of a battery during charging may include providing a charging current having a first magnitude to the battery for charging, and changing a magnitude of the charging current from the first magnitude to a second magnitude. The second magnitude may be equal to the magnitude of current discharged from the battery during the charging. The method may also include determining a voltage across the battery after the changing, and determining a state of charge of the battery as a function of the determined voltage from a battery characterization curve.