Abstract: Systems, methods, and articles for a portable power case are disclosed. The portable power case is comprised of at least one battery and at least one PCB. The portable power case has at least two access ports, at least two leads, or at least one access port and at least one lead and at least one USB port. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, and a tablet. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and generators. The portable power case provides for modularity that allows the user to disassemble and selectively remove the batteries installed within the portable power case housing.

Abstract: A method and device for determining an available capacity of a battery, a battery management system, and a storage medium, relating to the field of battery technologies. The method includes: obtaining the at least one DOD interval corresponding to the SOC interval of the operation of the battery, and the number of cycles and the cycle temperature corresponding to the at least one DOD interval; obtaining a recoverable amount of capacity fade of the battery according to the at least one DOD interval, the number of cycles and the cycle temperature, and determining an actual available capacity of the battery.

Abstract: A portable electronic device may include a battery assembly, a battery swell detection unit in proximity to the battery assembly, the battery swell detection unit includes a circuit, a switch positioned to be moved by swelling of a battery cell, a processor, and memory having programmed instructions that cause the processor, when executed, to detect battery swelling based on a position of the switch.

Abstract: A vehicle includes an energy storage system, a battery cooling system, and a thermal event management system. The energy storage system includes a battery arranged within a battery housing. The battery cooling system includes a first conduit positioned internal to the battery housing and adjacent the battery. The first conduit is configured to facilitate circulating a first fluid through the battery housing to thermally regulate the battery. The thermal event management system includes a second conduit with a fluid diverter positioned therealong. The second conduit is positioned adjacent to at least one of the battery or the battery housing. The second conduit is configured to receive a second fluid. The fluid diverter is configured to facilitate selectively providing fluid communication between the second conduit and the battery housing so that the second fluid flows out of the second conduit and at least one of into or around the battery housing.

Abstract: An electric vehicle includes an electrical system and performs a method of charging the electric vehicle. The electrical system includes a first battery subpack, a second battery subpack, wherein the first battery subpack, the second battery subpack, and an electrical load of the electric vehicle are connected in parallel, and a processor. The processor is configured to control a first connection between the first battery subpack and a first charge port and a second connection between the second battery subpack and a second charge port to charge each of the first battery subpack and the second battery subpack while providing power to the electrical load.

Abstract: This disclosure describes methods, apparatuses, and systems for training machine-learned models to determine optimal parameter settings associated with a sensor. For example, a system can input training data into a first machine-learned model configured to output an optimized sensor setting associated with a sensor parameter, the training data includes first sensor data and second sensor data. The system can input the training data into a second machine-learned model configured to output a detected feature. The system can determine a difference between the detected feature and a known feature. The system can alter a model configuration parameter used to capture or process the training data to minimize the difference to obtain a trained first or second machine-learned model. The system can further transmit the trained first and second machine-learned models to a vehicle configured to be controlled based on the first and the second machine-learned models.

Abstract: A method for managing a state of charge (SOC) of an energy store of a vehicle comprising storing an encoding of a dynamic weight value, computationally determining an estimated travel time to a stopover location, using the estimated travel time to modify the dynamic weight value to provide an updated dynamic weight value, and responsive to providing the updated dynamic weight value, increasing the SOC of the energy store while the vehicle travels over a roadway to provide a target SoC of the energy store when the vehicle arrives at the stopover location.

Abstract: Discussed is a pre-charge circuit and a battery system including the same, and the battery system includes: a battery pack configured to include a plurality of battery cells; a pre-charge relay configured to include a first MOSFET and a second MOSFET connected in series between a first electrode and an output terminal of the battery pack, a third MOSFET connected in parallel with the first MOSFET, and a fourth MOSFET connected in parallel with the second MOSFET; and a BMS configured to generate a gate voltage for controlling on and off of the relay.

Abstract: The present disclosure is directed to providing a battery pack, which may output a current that satisfies the operating specifications of a load even over a wide voltage range by including a plurality of current paths. In addition, according to an aspect of the present disclosure, since a current path corresponding to an input voltage range is automatically selected, there is an advantage of providing a battery pack compatible with an input of a wide voltage range.

Abstract: The present application provides a battery and an apparatus. The battery includes: a first-type battery cell group and a second-type battery cell group which are connected in series, wherein the first-type battery cell group is composed of multiple first-type batteries connected in parallel, and the second type battery cell group is composed of at least one second type battery cell connected in parallel; the first-type battery cell and the second-type battery cell are battery cells of different chemical systems, and the volume energy density of the first-type battery cell is less than that of the second-type battery cell; and the capacity Cap1 of the first-type battery cell group is greater than the capacity Cap2 of the second-type battery cell group, in which Cap1 is the sum of the capacities of the corresponding first-type battery cells, and Cap2 is the sum of the capacities of the corresponding second-type battery cells.

Abstract: A vehicle power supply system includes a first secondary battery, a second secondary battery whose output voltage is lower than that of the first secondary battery, a power conversion device configured to convert an input AC voltage into a DC voltage and output the DC voltage, a battery pack configured to receive the DC power output from the power conversion device and charge the first secondary battery, DC/DC converters configured to step down an input DC voltage to output the stepped-down DC voltage, and a power control unit configured to control the battery pack. The first secondary battery is connected to input ports of the DC/DC converters via the battery pack. An output port of the DC/DC converter is connected to a video media control unit, and the DC/DC converter is provided separately from the video media control unit. An output port of the DC/DC converter is connected to the second secondary battery.

Abstract: A relay temperature measuring device is provided. The device includes a sensor that measures an output of a battery and generates output measurement information and one or more relays that are disposed on a conductive line between the battery and a load. Additionally, a controller compares a relay temperature calculated using both-end measurement power information generated by measuring both ends of a conductor in a vehicle and the output measurement information with a preset temperature reference value, and connects or disconnects the relays based on a comparison result.

Abstract: A charging system for a secondary battery capable of minimizing a reduction in the capacity retention rate and the charge-discharge efficiency of a secondary battery. A charging system according to an aspect of the present disclosure includes a secondary battery, a charger that charges the secondary battery, a unit that calculates a charge capacity of the secondary battery, and a charge control unit that controls the charger to perform a first charging step of charging the secondary battery until a first voltage is reached, and a second charging step of charging the secondary battery at a constant voltage of the first voltage. The charge control unit terminates charging when the charge capacity of the secondary battery reaches a charge termination capacity set in a range less than a full charge capacity that is based on the first voltage of the secondary battery.

Abstract: An electric system is disclosed. The electric system comprises a battery subassembly, a current limiter, a non-current-limiting path in parallel with the current limiter, a battery management system (BMS) adapted for causing the battery assembly to energize the electric system using the current limiter upon a start of a precharge phase, and an electric vehicle module (EVM) communicatively coupled to the BMS. The EVM is adapted for causing the battery assembly to energize the electric system using the non-current-limiting path following a completion of the precharge phase. The electric system may be integrated in an electric vehicle. A method for energizing an electric system is also disclosed.

Abstract: Controller determines an output limit value that defines an upper limit of a current or power recommended for suppressing cell deterioration based on a voltage, a current, and a temperature of each cell, and notifies host controller in electric vehicle of the determined output limit value. When electric vehicle climbs a hill, controller calculates a current value or power value to be discharged from power storage unit, the current value or power value being required for electric vehicle to climb the hill at a speed not less than a set minimum speed, while suppressing an amount of deterioration of cells within an allowable range, and when the calculated current value or power value is larger than the output limit value, replaces the output limit value with the calculated current value or power value.

Abstract: A method identifies a measure that is not provided for by a manufacturer on or using a removable battery pack having at least one energy storage cell and a monitoring unit. The method includes detecting and storing a voltage of the removable battery pack and/or a cell voltage of the at least one energy storage cell using the monitoring unit before the monitoring unit is set to a quiescent state or when the removable battery pack is set to a state other than a charging operating state. The method also includes comparing the detected voltage of the removable battery pack and/or the detected cell voltage with a previously-stored voltage of the removable battery pack or a previously-stored cell voltage using the monitoring unit when the monitoring unit is set to an operating state or when the removable battery pack is in the state other than the charging operating state.

Abstract: Disclosed is a charge protection circuit including: a switch that switches between allowing and not allowing power supply from an external power source to a charging circuit that supplies power for charging a rechargeable battery; a detector that detects at least one of a current flowing from the charging circuit to the rechargeable battery and a voltage between two electrodes of the rechargeable battery; a determiner that determines whether a detection result of the detector is abnormal; and a controller that, in response to the determiner determining that the detection result of the detector is abnormal, causes the switch to switch to an interrupting state so as to interrupt power supply to the charging circuit.

Abstract: The battery system includes a secondary battery, a voltage sensor, a current sensor, a temperature sensor, and a processor. The processor is configured to calculate a polarization overvoltage by subtracting a voltage drop amount caused by a DC resistance and a reactive resistance of the secondary battery determined in accordance with a temperature and an SOC of the secondary battery from a voltage difference between OCV and CCV of the secondary battery.

Abstract: Disclosed is a battery pack including a battery module having a plurality of battery cells, and a heat dissipation member provided in contact with a bus bar at a side surface of the battery module where electrode leads of the battery cells and the bus bar coupled to the electrode leads are disposed.

Abstract: Used batteries are screened based on a measured Sectional Constant-Current Impulse Ratio (SCCIR). A used battery is partially charged over a small voltage range using a Constant Current (CC) until a voltage target is reached, and the current integrated to obtain the CC charge applied, Qcc. Then the battery continues to be charged using a Constant Voltage (CV) of the voltage target until the charging current falls to a midrange current target before the battery is fully charged. The current is integrated over the CV period to obtain the CV charge applied, Qcv. The measured SCCIR is the ratio of Qcc to (Qcc+Qcv) and is input to a calibration curve function to obtain a modeled State of Health (SOH) value for sorting. The calibration curve function is obtained by aging new batteries to obtain SCCIR and SOH data that are modeled using a neural network.

Abstract: The present invention provides a method for reasonably adjusting an end-of-discharge voltage of a lithium battery with attenuation of a battery life. The method includes: acquiring an end-of-charge voltage, an end-of-discharge voltage and a rated capacity based on a basic parameter table for a lithium battery, then setting a safety end-of-charge voltage and a safety end-of-discharge voltage to obtain an initial safety discharge capacity, and finally setting a preset discharge capacity of the battery; using an Ampere-hour integration method to estimate a discharged power, taking the preset discharge capacity as a discharge standard, and stopping discharge when the discharged power reaches the preset discharge capacity; and the safety discharge capacity being gradually less than the preset discharge capacity within a battery life cycle, and the battery stopping discharge when the voltage reaches the safety end-of-discharge voltage.

Abstract: A method for operating a battery of a parked motor vehicle includes determining an operating state of the motor vehicle, determining a current charging state of the battery when the operating state of the motor vehicle is a parked state, determining a first upper charging state limit value of the battery, first active lowering of the charging state of the battery when the current charge state is greater than the first upper charging state limit value, determining a second upper charging state limit value of the battery, and ending the first active lowering of the charging state when the charge state of the battery falls below the second upper charging state limit value. The invention also relates to a motor vehicle.

Abstract: A safety circuit for a power system of a vehicle includes a hazardous voltage interlock loop (HVIL) circuit configured to disconnect a high-voltage energy source from a high-voltage system, the HVIL-circuit comprising a contactor and a HVIL control unit; a current meter arranged to measure a current; a fuse; a switching circuit controlling the contactor of the HVIL-circuit. A safety circuit control unit is connected to the current meter and to the switching circuit for controlling the contactor. The safety circuit control unit is configured to, if the HVIL control unit provides a control signal to the switching circuit to open the contactor, and if the current measurement exceeds a first threshold current value, control the switching circuit to delay the opening of the contactor by a controllable time period.

Abstract: The invention relates to a method for operating an electrical energy store, comprising a storage cell for storing electrical energy and a control unit, wherein a safety switch is provided which is designed to interrupt an electrical line of the electrical energy store, wherein a current flowing through the electrical line is detected and an actuation of the safety switch only occurs if the current is below a predefinable threshold value.

Abstract: A method of detecting safe and other states of battery while electric vehicle is being driven controls an inverter to generate ripple current on the battery; ripple voltages of a plurality of battery cells are measured, voltage phase shifts between the battery cells are calculated. The battery can be analyzed as normal or otherwise according to the voltage phase shift between plurality of the battery cells. A vehicle-mounted device and a non-volatile storage medium therein, for performing the above-described method, are also disclosed.

Abstract: Provided is an overcurrent protection circuit including an overcurrent detection unit configured to compare an output current flowing through a switch element and a predetermined overcurrent detection value to generate an overcurrent detection signal, an output activation detection unit configured to compare an output voltage and a predetermined threshold voltage to generate an output activation detection signal, a logic unit configured to combine the overcurrent detection signal and the output activation detection signal to generate a logic operation signal, and a diagnostic output unit configured to provide diagnostic output, the logic unit shifting the logic operation signal to a logic level of abnormal state when the overcurrent detection signal is shifted to a logic level of overcurrent detection state and holding the logic operation signal at that logic level, unless the output activation detection signal is shifted to a logic level of output activation state.

Abstract: Apparatus and methods prepare an adhesive tape platform with a battery for disposal at an end of its useful life. The adhesive tape platform determines when it is at the end of its useful life and performs an action to drain remaining battery life of the battery. When remaining life in the battery is less than a threshold level, the adhesive tape platform transmits a ready for disposal notification to an Internet of Things (IOT) system of the adhesive tape platform. The adhesive tape platform may determine its life expectancy and operational phases of the adhesive tape platform and assign battery usage for each of the operational phases such that the battery is depleted at an end of a last one of the operational phases. The adhesive tape platform may activate battery draining circuitry to drain the remaining battery life of the battery.

Abstract: The disclosed apparatus and method is a closed loop system that obtains, stores and transfers motive energy. Preferably, the majority of the electricity generated is utilized to service a load or supplied to the grid. A portion of the electric power produced is used to recharge the batteries for subsequent use of the electric motor. The system controls and manages the battery power by controlling the charging and discharging of the battery reservoir via a series of electrical and mechanical innovations controlled by electronic instruction using a series of devices to analyze, optimize and perform power production and charging functions in sequence to achieve its purpose.

Abstract: Temperature sensing circuits for devices described herein include a substrate material, a first conductive portion, a second conductive portion, and a third conductive portion associated with the substrate material, and a plurality of thermistors associated with the substrate material for sensing a temperature associated with the device. The plurality of thermistors include a first thermistor and a second thermistor. The first thermistor is connected to the first conductive portion. The first thermistor and the second thermistor are both connected to the second conductive portion. The second thermistor is connected to the third conductive portion.

Abstract: One embodiment discloses a DC-DC converter which, in a solar-related energy storage system, cuts-off the over-discharging of a battery, and a control method thereof. Specifically, disclosed are a DC-DC converter which protects a battery by appropriately switching between a sleep mode which minimizes battery consumption by maintaining only minimized functions and a cut-off mode which prevents the battery from over-discharging by physically cutting off a circuit connected to the battery, and a control method thereof.

Abstract: The invention relates to a method for operating an electrical energy store, comprising a storage cell for storing electrical energy and a control unit, wherein a safety switch is provided which is designed to interrupt an electrical line of the electrical energy store, wherein a current flowing through the electrical line is detected and an actuation of the safety switch only occurs if the current is below a predefinable threshold value.

Abstract: Methods and systems for protection/disconnect of airborne high-power/energy high-voltage modular multi-string battery packs (such as battery packs for airborne electric propulsion systems). The methods and systems are based on a dissimilar/redundant distributed battery pack protection architecture and use a smart mid-point battery disconnect in conjunction with centralized battery management system. The resulting battery disconnect/protection system is configured to detect bus faults, load faults and string faults and then take appropriate action to isolate the detected fault. For example, in response to a short circuit in one battery string, the faulty battery string may be disconnected from the positive and negative busbars while the remaining battery strings continue to provide power.

Abstract: A controller of a barcode reader is disclosed. The controller may receive, via a user input, a charge threshold associated with presenting a battery level indicator on the display panel. The controller may monitor, during a charging operation, a state of charge of the battery. The controller may determine that the state of charge satisfies the charge threshold. The controller may cause, during the charging operation, the display panel to indicate the battery level indicator.

Abstract: A smart battery device includes a battery unit, a temperature-sensing unit and a processing unit. The temperature-sensing unit senses the ambient temperature to generate a temperature signal. The processing unit is coupled to the battery unit and the temperature-sensing unit. In a charging mode, the processing unit receives the temperature signal and obtains the power capacity of the battery unit. The processing unit sets full capacity according to the temperature signal and generates an indication flag when the power capacity of the battery unit reaches the full capacity, wherein the indication flag is used to indicate that the battery unit is in a fully charged state.

Abstract: A riding-type mower includes a power supply device and the power supply device includes a plurality of battery packs and a power management module. The plurality of battery packs are detachably mounted to the riding-type mower and further configured to supply electric energy to a hand-held electric power tool. The plurality of battery packs each are provide with at least one battery cell group, and each battery cell group includes a plurality of battery cells electrically connected to each other. The power management module is configured to determine whether the plurality of battery packs satisfy a discharge condition and control a battery pack satisfying the discharge condition to discharge when the battery pack satisfies the discharge condition.

Abstract: Examples of the disclosure include a battery system comprising an output configured to provide output power to a load, one or more battery cells configured to store electrical energy to provide to the load, and a battery management system configured to receive one or more operational parameters of the battery system, determine whether the one or more operational parameters are less than at least one operational-parameter threshold, modify a discharge threshold of the one or more battery cells responsive to determining that the one or more operational parameters are less than the at least one operational-parameter threshold, and control the battery system to be in a battery-optimization mode responsive to determining that a discharge level of the one or more battery cells is below the discharge threshold.

Abstract: A method of charging a battery of a dental light irradiation device has the steps of powering the battery at a first charging current and measuring a first terminal voltage of the battery; powering the battery at a different second charging current and measuring a second terminal voltage of the battery; calculating a battery source voltage; and powering off the battery as soon as the battery source voltage reaches or exceeds the threshold voltage.

Abstract: According to various embodiments of the present invention, an electronic device may comprise a battery, a power management module, and a processor. The processor may be configured to: acquire power for battery charging from a source outside the electronic device through the power management module, charge the battery at a designated current value by using the power, check charging state information based on charging time and battery capacity according to charging in a designated charging state measurement interval after the charging is started, and when the charging state information satisfies a given condition, perform a designated operation associated with the battery. Various other embodiments are also possible.

Abstract: A circuit assembly for forming and testing batteries connected in parallel and in series includes a parallel test management device (PTMD) that connects to each battery and includes a main relay and a current transducer in series and an auxiliary relay in series with a current limiting resistor, which are parallel to the main relay. Parallel battery groups are formed by connecting multiple PTMD-battery combinations and a voltage equalizer in parallel. Multiple parallel battery groups are connected in series. A battery testing system (BTS) connects to the battery groups. The equalizers and the BTS pass current through the batteries simultaneously. The current through batteries and the voltage drop across the current transducer are about zero at the end of charge and discharge.

Abstract: Disclosed is a system that includes a plurality of battery cells connected in series; a first connection path from an intermediate battery cell of the plurality to an output bus of the system; a second connection path from a last one of the plurality of battery cells to an output bus; a circuit switch installed along the second connection path, the circuit switch configured to open or close the second connection path; and an undervoltage relay in the output bus, wherein the undervoltage relay is set at a threshold voltage, and wherein the undervoltage relay is configured to control the circuit switch when a voltage on the output bus exceeds the threshold voltage or drops below the threshold voltage.

Abstract: An electrical apparatus includes first and second battery interfaces disposed on a housing for electrically and mechanically connecting first and second battery packs in series. A controller is disposed within the housing and includes an apparatus microprocessor that receives first and second communication signals respectively outputted from respective microprocessors of the first and second battery packs. A first signal communication path communicates the first communication signal from the first battery pack microprocessor to the apparatus microprocessor by shifting a first voltage range of the first communication signal to a second voltage range that is suitable for inputting into the apparatus microprocessor.

Abstract: During an operation of the energy accumulator, a control unit is designed to detect event data relating to different charging/discharging events of the energy accumulator. The event data for a charging/discharging event indicates an event discharge depth of the energy accumulator within the scope of the charging discharging event. In addition, the control unit is designed to determine a discharge depth distribution based on the discharge data, which indicates a number of charging/discharging events with a corresponding event discharge depth for different discharge depths during the operation of the energy accumulator. The control unit is designed to determine status data relating to a cumulative charging of the energy accumulator based on the discharge depth distribution and based on a discharge depth characteristic curve of the energy accumulator, and/or to adjust an operating strategy for the energy accumulator depending on the discharge depth distribution and the discharge depth characteristic curve.

Abstract: A vehicle with a hybrid drivetrain including a fuel-fed engine coupled to a first drive axle, an electric motor coupled to a second drive axle and an APU for providing electrical power at stopover locations, and further including a controller for determining a location of the vehicle, a location of a stopover location, determining a target SOC of a battery for operating the APU at the stopover location and operating a hybrid control system to provide the target SOC for the vehicle at the stopover location.

Abstract: A battery discharge control system and method for a motor-driven vehicle may monitor a SOC of an auxiliary battery in real time and control electric power supply to a first electric component, a wireless communication module, a vehicle controller, and a second electric component which is an always-on component, based on a predetermined order according to the SOC of the auxiliary battery, thereby inhibiting the complete discharge of the auxiliary battery and eliminating driver's discomfort.

Abstract: An electric drive system includes at least one electric drive unit. The at least one electric drive unit includes an electric motor and inverters that are each supplied with DC voltage via a high-voltage bus. The electric drive system includes a main battery system that has a plurality of battery modules that supply DC voltage to each of the high-voltage buses. The electric device system includes a plurality of reserve batteries. A separate reserve battery is provided for each high-voltage bus. The drive system is configured to make a change to the supply of DC voltage when a corresponding control signal is present for each of the high-voltage buses. A change is made from a supply of DC voltage of the battery module of the main battery system that is assigned to the high-voltage bus to a supply of DC voltage of the reserve battery assigned to the high-voltage bus.

Abstract: The prevent invention relates a method and apparatus based on neural network for pre-diagnosing defect and fire in battery cell. A method based on neural network for pre-diagnosing defect and fire in battery cell in an apparatus for pre-diagnosing defect and fire in battery cell is proposed, the method including collecting, by the battery cell defect and fire pre-diagnosis apparatus, data including at least one of chemical composition, current, voltage, and temperature data measured for each predetermined time interval within each charge and discharge cycle while charging and discharging a plurality of batteries; training, by the battery to cell defect and fire pre-diagnosis apparatus, the neural network by inputting the collected data to the neural network; and predicting, by the battery cell defect and fire pre-diagnosis apparatus, a battery deviated from a main cluster of the neural network as defective.

Abstract: A thermal runaway detecting device for a battery system including a plurality of cells, including: a first measuring module for measuring temperature values of the plurality of cells via at least one temperature sensor; a second measuring module for measuring an output voltage value of the battery system; and a controller for determining validity of a temperature-based detection of thermal runaway by monitoring data received from the first measuring module, and detecting a thermal runaway of the battery system by selectively monitoring the temperature values or the output voltage value according to a result of the determining of validity of the temperature-based detection of thermal runaway.

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.

Abstract: The present disclosure provides a method and a system for improving the state of health (SoH) of rechargeable batteries. The method comprises receiving a plurality of battery parameters during charging of a battery and estimating model parameters of the battery using a mathematical model. The method also comprises comparing the estimated model parameters of the battery and the received battery parameters to determine degradation parameters of the battery in real-time, determining new charging current profile of the battery based on the degradation parameters of the battery, and applying the determined new charging current profile to the battery for improving the SoH of the battery.

Abstract: A method for converting voltage is disclosed, including implementing a first DC-DC converter in a power management unit; implementing a second DC-DC converter in the power management unit; implementing a controller communicatively coupled to a first output line of the first DC-DC converter and communicatively coupled to a second output line of the second DC-DC converter; coupling the power management unit to a supply voltage; and providing one or more output voltages on the first output line and the second output line.