Abstract: A system, a method, and a computer program product for providing heterogeneous unifying battery storage. A state-of-health value of a battery is determined. The state-of-health value of the battery is less than an original capacity value of the battery. The battery is connected to an electrical power source for re-conditioning. A target state-of-health value for the battery and a number of cycles required to achieve the target state-of-health value of the battery are determined. Each cycle in the number of cycles includes at least one of: a charging the battery and a discharging the battery. The battery is re-conditioned by cycling the battery using the determined number of cycles. Cycling includes drawing electrical power from the electrical power source.

Abstract: A battery pack heating system includes: a main positive switch, a main negative switch, an inverter, an external port, a motor, a control module for auxiliary charging branch, a vehicle control unit, a motor control unit, and a battery management module. The battery management module is configured to send, when an acquired state parameter of the battery pack meets a preset low-temperature-low-power condition, a low-temperature-low-power heating request instruction to the vehicle control unit and the control module respectively. The control module is configured to send a first control signal to control the auxiliary charging branch to be connected. The vehicle control unit is configured to send a second control signal to enable the motor control unit to control on-off of the switch modules in the inverter, and a third control signal to enable the battery management module to control on-off of the main positive switch.

Abstract: A battery pack system, a control method thereof and a management device are provided. A battery pack is connected in series with a discharge circuit unit and a charge circuit unit; a battery management unit is to monitor a temperature of the battery pack, to periodically send, when the temperature of the battery pack is lower than a threshold, a turn-on-instruction to the discharge circuit unit and the charge circuit unit alternately to control the discharge circuit unit and the charge circuit unit to be alternately turned on in heating cycles; the discharge circuit unit is to be turned on according to the turn-on-instruction to enable electricity of the battery pack to flow into the energy storage unit in discharging-phase; and the charge circuit unit is to be turned on according to the turn-on-instruction to enable electricity of the energy storage unit to flow into the battery pack in charging-phase.

Abstract: A vehicle includes an electrified propulsion system powered by a traction battery over an electrical distribution system (EDS) and a controller programmed to monitor at least one of a current flow and a temperature at a plurality of locations throughout the EDS. The controller is also programmed to implement at least one mitigation action over a predetermined time window in response to detecting a filtered current value exceeding a threshold.

Abstract: A charging device for charging a lithium-ion secondary battery based on at least a constant voltage method is provided. In the charging device, before starting charging with a constant voltage or while performing charging with a constant voltage, a first current pulse having a peak current value i1 larger than a charge current value i0 is applied at least once.

Abstract: Provided are a multi-stage constant current charging method and a charging apparatus. The multi-stage constant current charging method includes the following. Perform a multi-stage constant-current charging on a battery, where a constant-current charging cut-off voltage is larger than a second voltage. Perform a constant-voltage charging on the battery, where a constant-voltage charging cut-off current is larger than a second current.

Abstract: An electrical battery system for a vehicle includes a first battery pack and a second battery pack. The first battery pack has a larger total nominal energy capacity than the second battery pack. The first battery pack includes an array of a first type of battery cells and the second battery pack includes an array of a second type of battery cells. The second type of battery cells withstands a larger maximal 30-seconds discharge pulse current than the first type of battery cells. The first type of battery cells have a higher nominal energy capacity per unit volume than the second type of battery cells, and the battery cells of the second battery pack are better thermally insulated than the battery cells of the first battery pack. Additionally, a vehicle drive train includes such an electrical battery system or a vehicle includes such an electrical battery system.

Abstract: A system and method for balancing a battery having a plurality of cells connected in series. The system includes a plurality of reactive charge transfer units connected with the plurality of cells, a first control unit and a second control unit. The first control unit is configured to determine a state of charge of the plurality of cells, determine a reference value associated with the battery, identify an overcharged cell or a discharged cell in the battery, and determine a charge differential between state of charge of the overcharged cell or the discharged cell and the reference value associated with the battery. The second control unit is configured to arrange charge transfer between the overcharged cell or the discharged cell, and remaining pack of cells in the battery. The first and the second control units are configured to function iteratively until cell balancing is attained.

Abstract: A battery management device includes a detection circuit, a charge control circuit, and a discharge control circuit. The detection circuit is configured to output a first control signal and a second control signal according to a volume of a rechargeable battery. The charge control circuit is electrically coupled to the rechargeable battery and the detection circuit, and configured to open a charge loop of the rechargeable battery according to the first control signal. The discharge control circuit is electrically coupled to the rechargeable battery and the detection circuit, and configured to close a discharge path of the rechargeable battery according to the second control signal.

Abstract: This disclosure relates to systems and methods for charging a battery. An example embodiment may include a battery, a battery charger device and a controller. The controller is configured to cause the battery charger device to charge the battery with a plurality of pulses and rests. Each pulse includes a respective pulse duration and a respective pulse current. Each rest includes a respective rest duration. While in a first charge phase, the controller is configured to adjust at least one of: the respective pulse duration, the respective pulse current, or the respective rest duration based on at least one sample of a characteristic voltage of the battery. Subsequently, the controller is configured to initiate a second charging phase. The controller is further configured to cause the battery charger device to charge the battery according to a second charge waveform.

Abstract: A secondary battery system includes a secondary battery, a measurement part, a designation part, and a controller. The measurement part measures a volume change rate of the secondary battery. The designation part designates a threshold value. The controller controls a current flowing through the secondary battery, based on the volume change rate of the secondary battery measured by the measurement part and the threshold value.

Abstract: A method and device is disclosed for charging and/or maintenance of lead-acid and alkaline accumulator batteries, allowing a charge, discharge, or recovery in control-conditioning cycles of these batteries. To increase efficiency of the battery recovery process, its charge is created by a reversible current in consecutive stages. Correction of the charging mode is provided based on voltage and temperature of the accumulator battery.

Abstract: A method for operating a buck converter as a power source for electronics of a battery system, includes: operating the buck converter in a first mode in which the buck converter provides a first output voltage; receiving a first control signal; and in response to receiving the first control signal, operating the buck converter in a second mode in which the buck converter provides a second output voltage for a System Basis Chip of the battery system. The first output voltage has a first value in a range of a to b, and the second output voltage has a second value in the range of c to d, wherein b is less than c.

Abstract: A process of charging or discharging a Li—S battery or cell is provided. A device for carrying out the process of charging or discharging the Li—S battery or cell is also provided. A process for manufacturing the Li—S battery is provided.

Abstract: A method and device is disclosed for charging and/or maintenance of lead-acid and alkaline accumulator batteries, allowing a charge, discharge, or recovery in control-conditioning cycles of these batteries. To increase efficiency of the battery recovery process, its charge is created by a reversible current in consecutive stages. Correction of the charging mode is provided based on voltage and temperature of the accumulator battery.

Abstract: A battery management system for a vehicle includes a controller programmed to charge a battery at a predetermined charge current. The controller activates an electrical load to discharge the battery for a predetermined time in response to a charge current of the battery becoming less than the predetermined charge current at a predetermined voltage limit. After discharging for the predetermined time, the controller resumes charging at the predetermined charge current. A current magnitude during the discharge and the predetermined time may be based on factors including the predetermined charge rate, a battery temperature, and a charge current magnitude during charging.

Abstract: One embodiment of the invention is an apparatus for determining the initiation of a charging process for a secure charging apparatus. The apparatus has circuitry for authorising a user, circuitry for confirming connection of a device, and circuitry for confirming charging of the device.

Abstract: The present invention relates to a method for operating a battery charger, and a battery charger. The method comprising the steps of determining a capacity of the battery, determining an initial charging current, apply the calculated initial charging current as a charging current to the battery, determining the voltage change with time ?V/?t for the voltage over the battery, adjusting the charging current based on the ?V/?t.

Abstract: A method and corresponding device, for monitoring a charge of a battery. The method obtains a battery current measurement value and a battery voltage measurement value, and applies a current integration method to update a primary charge estimate value representative of the charge stored in the battery by taking into account the battery current measurement value. The method further determines an ancillary charge estimate value representative of the charge stored in the battery using a battery model taking into account the battery voltage measurement value, and determines an error value for the ancillary charge estimate value, in which the error value expresses the reliability of the battery model. The method also applies a correction to the primary charge estimate value as function of the ancillary charge estimate value and the error value. Interpretation of the correction applied in this manner allows determination of current sensor offset and battery capacity change.

Abstract: A dynamic natural adaptive charging method, comprises: (a) connecting a charger with a main charging circuit of a lithium battery pack to be charged and a BMS communication interface, regulating an excitation voltage of the charger to a voltage of the lithium battery pack to be charged, and switching on the charger and the lithium battery pack to be charged when the output voltage of the charger is equal to the voltage of the battery pack; (b) increasing the excitation voltage by 0.6 to 1V for charging until the charging current is decreased to a first set value; (c) repeating step (b) until voltages of all single batteries in the lithium battery pack to be charged reach a second set value; and (d) regulating the excitation voltage to a nominal voltage of the lithium battery pack to be charged and charging with the maximum output current of the charger.

Abstract: Systems and control devices for charging and discharging a lithium-ion battery and relevant methods are provided. A variable frequency triggering oscillation charge-discharge device constructs an oscillation loop with a lithium-ion battery using an inherent impedance characteristic of the lithium-ion battery to charge and/or discharge the lithium-ion battery in the form of an oscillation current generated by the oscillation loop, to avoid direct current (DC) charge-discharge for the lithium-ion battery or battery pack that causes polarization and lithium precipitation of the lithium. Accordingly, the lithium-ion battery has longer battery life, higher charging threshold voltage, higher charge, and controlled internal temperature increase. Thus, the suitable temperature range for the lithium-ion battery is broadened.

Abstract: A system and method for charging a plurality of batteries is disclosed. A battery charging hub may have a plurality of charging/discharging ports capable of applying varying charging programs based on the state of a battery. A battery charging hub may include wired or wireless communication ability to allow the battery charging hub to communicate with remote units regarding the state and quality of batteries at the charging hub. A virtual disposable battery is also disclosed.

Abstract: An electrical load control method includes: collecting, by an electrical load control apparatus, state information of one or more electrical loads; receiving, by an output device, the state information of the one or more electrical loads from the electrical load control apparatus; outputting, by the output device, the state information; receiving, by an input device, one or more control objects among the one or more electrical loads and control methods for the one or more control objects; and receiving, by the electrical load control apparatus, a signal corresponding to the received one or more control objects and the received control methods for the one or more control objects from the input device to deliver a signal corresponding to a respective control method for each of the one or more control objects.

Abstract: A method for managing the lifetime of a battery is disclosed herein. An ambient temperature is measured near a battery. The ambient temperature rises above a first threshold and, in response to detecting that the ambient temperature has risen above the first threshold, the battery is discharged. A battery system and a device operable with a battery are also disclosed.

Abstract: A battery management system for a motor vehicle is disclosed. The system includes at least one battery having multiple battery cells, an automotive electronic control unit including a device for sensing battery quantities, where the battery quantities are the battery terminal current, the battery terminal voltage and a measured or estimated battery or battery box temperature, the battery terminal current, the battery terminal voltage, the measured or estimated battery or battery box temperature, and an automotive alternator supplying a regulation voltage, where the automotive electronic control unit is adapted to drive the battery through a charging cycle, in which a certain charge voltage and/or a certain charge current is supplied to the battery to charge the battery, and the automotive electronic control unit is adapted to control the regulation voltage based upon the sensed battery quantities to supply the certain charge voltage and/or the certain charge current to the battery.

Abstract: This disclosure relates to systems and methods for charging a battery. An example embodiment includes receiving information about an initial state of charge of a battery. If an initial state of charge is less than a predetermined threshold and if a charger is electrically coupled to the battery, a charger may be configured to charge the battery according to a preferred charge rate higher than a default charge rate. A charging duration is determined based on a type of the battery, the initial state of charge, a target state of charge, and the charge rate. A controller may determine a partial charge condition based on at least one of: providing electrical current to the battery at the charge rate for the charging duration or receiving information indicative of a state of charge of the battery reaching the target state of charge.

Abstract: A sensor system comprises: an energy storage device; an intermittent energy release device electrically coupled to the energy storage device, wherein the intermittent energy release device causes the energy storage device to release stored energy intermittently; a sensor electrically coupled to the energy storage device; a register electrically coupled to the sensor, wherein the register stores readings from the sensor; a synaptic neural network core electrically coupled to the sensor, wherein the synaptic neural network core converts the readings from the sensor into a synthetic context-based object that is derived from the readings and a context object; a transponder electrically coupled to the synaptic neural network core; and a storage buffer within the transponder, wherein the storage buffer stores the synthetic context-based object for transmission by the transponder to a monitoring system.

Abstract: The present disclosure provides a charging method and a user equipment. The charging method includes: measuring a maximum output current value of a charger according to a received fast charging instruction; setting a charging current value for a battery of a user equipment according to the maximum output current value; receiving, from the charger, a first charging current corresponding to the charging current value; and disconnecting the charger if a charging temperature of the battery is detected to be higher than a preset temperature. The charging method and user equipment provided in the present disclosure solve problems in the prior art that the charger is damaged because of overloading in case of emergency charging, and that the battery of the user equipment is overcharged because of an over-high charging temperature, so that safe and fast charging is implemented.

Abstract: Disclosed are various systems and methods related to forecasting a low capacity state in an energy storage device of a node. A voltage is measured for the energy storage device of the node based upon measurement criteria. A counter for the node is adjusted based on the measured voltage, where the counter represents a history of instances of previous measurements of the voltage with respect to a voltage limit. The counter is adjusted in one direction if the measured voltage is below the voltage limit, and the counter is adjusted in the opposite direction if the measured voltage meets the voltage limit. If the counter meets a low capacity threshold, a low capacity condition is activated for the node. If the counter fails to meet the low capacity threshold, the value of the counter is stored for subsequent use during the next evaluation of the energy storage device.

Abstract: A method for charging rechargeable cells, in particular lithium ion cells. An apparatus for charging such cells. In order to specify a method for charging a lithium-based cell and an apparatus for charging a lithium-based cell, in which the capacitance of the cell is optimally used, the charging time is drastically shortened, the shelf life of the cell is extended and/or it is possible to increase the capacitance of the cell, a method is stated which includes the following steps, pulsed charging of the cell, wherein the charging current IL exceeds the nominal charging current ILmax of the cell during the charging pulses; and the cell is discharged between the charging pulses using load pulses.

Abstract: Some embodiments of the present invention provide a system that accurately and reliably updates a full charge capacity of a battery. During operation, the system charges the battery from an initial state to a rest point prior to reaching a fully charged state. The system then interrupts the charging process to allow the battery to relax to a resting voltage. Next, the system measures the resting voltage. The system then resumes the charging process toward the fully charged state. The system subsequently estimates the capacity of the battery based on the measured resting voltage and one or more other parameters.

Abstract: A method for charging a battery is provided, wherein current pulses are supplied to the battery, wherein each pulse is followed by a rest period during which no current is supplied to the battery, and wherein the state of charge of the battery is determined during the rest period.

Abstract: A method and system for application independent map-based cycle life testing of battery cells is provided. A target depth of discharge (DOD) and a charge/discharge current level is selected for the battery test. The battery is discharged to the target DOD. The battery is cycled within the DOD range one or more times, wherein the cycling comprises a charge pulse and a discharge pulse at the selected current levels. A reference performance test (RPT) is performed on the battery, wherein the RPT comprises a static capacity test and a dynamic power test. The cycling and RPT testing are repeated until an end of test condition is detected.

Abstract: The present invention provides a temperature controlling system for a battery in an energy storage system, the temperature controlling system including: a converter comprising a plurality of switches and a converter inductor, the converter being configured to increase or decrease a voltage of the battery; a DC linker comprising first and second capacitors that are coupled in series and configured to stabilize an output voltage of the converter; and an inverter comprising a plurality of switches and an inductor, the inverter being configured to invert an input voltage, wherein the inverter further comprises a switch coupled between a terminal of the inductor and a first node between the first and second capacitors of the DC linker to provide a current from the inductor to the battery.

Abstract: The present invention provides a temperature controlling system for a battery in an energy storage system, the temperature controlling system including: a converter comprising a plurality of switches and a converter inductor, the converter being configured to increase or decrease a voltage of the battery; a DC linker comprising first and second capacitors that are coupled in series and configured to stabilize an output voltage of the converter; and an inverter comprising a plurality of switches and an inductor, the inverter being configured to invert an input voltage, wherein the inverter further comprises a switch coupled between a terminal of the inductor and a first node between the first and second capacitors of the DC linker to provide a current from the inductor to the battery.

Abstract: A charge/discharge input is for respectively supplying charge to, or drawing charge from, an electrochemical cell. A transition modifying circuit is coupled between the charge/discharge input and a terminal of the electrochemical cell and includes at least one of an inductive constituent, a capacitive constituent and a resistive constituent selected to generate an adjusted transition rate on the terminal sufficient to reduce degradation of a charge capacity characteristic of the electrochemical cell. A method determines characteristics of the transition modifying circuit. A degradation characteristic of the electrochemical cell is analyzed relative to a transition rate of the charge/discharge input applied to the electrochemical cell. An adjusted transition rate is determined for a signal to be applied to the electrochemical cell that will reduce the degradation characteristic.

Abstract: The apparatus of charging a rechargeable battery includes a voltage detector which detects a voltage value between terminals of a rechargeable battery, a current generator which generates current for charging the rechargeable battery and outputs the generated current to the terminals of the rechargeable battery, and a controller which controls the current generator based on the voltage value detected by the voltage detector. The current generator outputs a first current for which a direction thereof between the terminals of the rechargeable battery is constant, in a charging period of the rechargeable battery, wherein the first current comprises direct current, and a second current for which a direction thereof between the terminals of the rechargeable battery is periodically reversed, in an intermittent period of the rechargeable battery.

Abstract: The object aims to prevent or reduce the deterioration of a secondary battery by charge with an undue pulse. Disclosed is a discharge control device (100) for a secondary battery, which comprises: a detection unit (110) for detecting the charge of the secondary battery with a pulse having a level equal to or higher than a predetermined level; and a discharge control unit (130) for so controlling that at least one pulse having almost the same level as that of the above-mentioned pulse is discharged from the secondary battery when the charge of the secondary battery with the above-mentioned pulse is detected.

Abstract: Some embodiments of the present invention provide a system that accurately and reliably updates a full charge capacity of a battery. During operation, the system charges the battery from an initial state to a rest point prior to reaching a fully charged state. The system then interrupts the charging process to allow the battery to relax to a resting voltage. Next, the system measures the resting voltage. The system then resumes the charging process toward the fully charged state. The system subsequently estimates the capacity of the battery based on the measured resting voltage and one or more other parameters.

Abstract: A battery self heating system for batteries that experience battery impedance or internal battery resistance when temperature drops. The system comprises an energy storage element applied to the battery terminals to draw energy from the battery. The energy is stored in a magnetic or capacitive storage device. The system is self-resonant so that energy transfer from the storage device to the battery will occur at a frequency and load level that is compatible with the current state of the battery. Internal heating of the battery is accomplished by a cycle comprising the out flux and influx of energy through the impedance of the battery. Energy losses due to battery impedance are converted to heat thereby heating the battery internally.

Abstract: A battery pack includes a first battery and a second battery connected electrically in parallel and performing charge and discharge, and a heater generating heat. The first battery can perform charge and discharge with a current larger than that of the second battery. The second battery has an electric storage capacity larger than that of the first battery. The heater is placed at a position closer to the first battery than the second battery.

Abstract: In a semiconductor integrated circuit device including a digital circuit region in which a digital circuit is formed, and an analog circuit region in which an analog circuit is formed, the analog circuit region is separated into an active element region in which an active element of the analog circuit is formed, and a resistive and capacitive element region in which a resistor or a capacitor of the analog circuit is formed, the resistive and capacitive element region is arranged in a region adjacent to the digital circuit region, and the active element region is arranged in a region separated from the digital circuit region.

Abstract: The battery state-of-charge calculation device (100) is provided with a SOCV calculation unit (5) which outputs a first state of charge calculated based on voltage data, a SOCI calculation unit (6) which outputs a second state of charge calculated based on current data, an estimated impedance voltage calculation unit (12) which calculates an impedance voltage value based on an effective state of charge and the current data, a static determination unit (7) which determines that the impedance voltage value remains static for a predetermined time or longer in a range identified by a predetermined threshold value and outputs the determination result; and a SOC decision unit (20) which, based on the determination result, outputs the first state of charge as the effective state of charge where the impedance voltage value is static and outputs the second state of charge as the effective state of charge where the impedance voltage value is not static.

Abstract: Certain embodiments of the present invention provide a battery heating circuit, comprising a switch unit 1, a switching control module 100, a damping component R1, an energy storage circuit, and an energy superposition unit; the energy storage circuit is configured to connect with the battery to form a loop, and comprises a current storage component L1 and a charge storage component C1; the damping component R1, the switch unit 1, the current storage component L1, and the charge storage component C1 are connected in series; the switching control module 100 is connected with the switch unit 1, and is configured to control ON/OFF of the switch unit 1, so as to control the energy flowing between the battery and the energy storage circuit.

Abstract: A method of pulse charging a secondary electrochemical storage cell is provided. The secondary cell includes a negative electrode comprising an alkaline metal; a positive electrode comprising at least one transition metal halide; a molten salt electrolyte comprising alkaline metal haloaluminate; and a solid electrolyte partitioning the positive electrode from the negative electrode, such that a first surface of the solid electrolyte is in contact with the positive electrode, and a second surface of the solid electrolyte is in contact with the negative electrode. The method of charging includes polarizing the cell by applying a polarizing voltage greater than about 0.1 V above the cell's rest potential for a first predetermined period of time; depolarizing the cell for a second predetermined period of time; and repeating the polarizing and depolarizing steps until a charging end-point is reached.

Abstract: A circuit for heating a battery includes a switch unit, control module, damping component, energy storage circuit, and superposition unit. The energy storage circuit forms a loop with the battery, and includes current and charge storage components. The damping component, switch unit, current storage component, and charge storage component connect in series. The control module switches on the switch unit so current flows between the battery and energy storage circuit and switches off the switch unit to stop current flow. The superposition unit superposes energy in the energy storage circuit with energy in the battery after the switch unit switches on and off. The control module switches the switch unit off after the first positive half cycle of current flow through the switch unit after the switch unit switches on. Voltage applied to the switch unit when the switch unit switches off is lower than the switch unit's voltage rating.

Abstract: Ambient noise sampled by a mobile device from a local environment is used to automatically trigger actions associated with content currently playing on the mobile device. In some implementations, subtitles or closed captions associated with the currently playing content are automatically invoked and displayed on a user interface based on a level of ambient noise. In some implementations, audio associated with the currently playing content is adjusted or muted. Actions can be automatically triggered based on a comparison of the sampled ambient noise, or an audio fingerprint of the sampled ambient noise, with reference data, such as a reference volume level or a reference audio fingerprint. In some implementations, a reference volume level can be learned on the mobile device based on ambient noise samples.

Abstract: Circuit and method for heating a battery. The circuit includes the battery with damping component, a switch unit, a switching control module, an energy storage circuit, a freewheeling circuit, and an energy superposition unit. The energy storage circuit connects with the battery to form a loop, and includes current and charge storage components. The damping component, switch unit, current storage component, and charge storage component connect in series. The switching control module turns on the switch unit such that current flows between the battery and energy storage circuit. The energy superposition unit superposes the energy in the energy storage circuit with the energy in the battery after the switch unit switches on and then off. The freewheeling circuit forms a serial loop with the battery and the current storage component to sustain current flow in the battery after the switch unit switches on and then off.

Abstract: The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a current pulse to the terminals of the battery during a charge, measuring a voltage at the terminals of the battery, determining a relationship of an open circuit voltage to an amount of charge in the battery using data which is representative of a state of health of the battery, calculating an open circuit voltage of the battery using the voltage measured at the terminals of the battery, a current applied to or removed from the battery and an impedance of the battery, and determining a state of charge of the battery using (i) the calculated open circuit voltage and (ii) the relationship of the open circuit voltage to the amount of charge.

Abstract: Methods and apparatuses are described for use in preserving and/or recovering the lifetime and charge storage capacity of batteries. The methods include pulse charging, energy juggling, energy leveling, all resulting in extended battery life. Methods of storing batteries for maintaining their capacity at their nominal level for extended periods of time are also presented.