Abstract: A battery-powered infusion pump for delivery of insulin or other medicament may collect and store data related to the pump. The infusion pump can communicate some or all of the stored data to another device, and control the timing and amount of data communicated in order to conserve battery life.

Abstract: Discussed is a battery management apparatus that may include a voltage measuring unit configured to measure a voltage of a battery; a communication unit configured to output voltage information for the voltage measured by the voltage measuring unit; a power unit configured to provide an operation power to the communication unit; an environment information measuring unit configured to measure environment information including at least one of ambient temperature and humidity of the power unit; and a control unit configured to receive the measured environment information from the environment information measuring unit, judge whether the power unit is operable based on at least one of the received environment information, a capacity of the power unit, and a consumed current and a communication time consumed for the communication unit to output the voltage information, and control the communication unit according to a judgment result about whether the power unit is operable.

Abstract: A method for estimating the charge state of a battery includes initializing the charge state, including estimating an initial charge state value. The initializing includes: receiving a stored charge state value for a sleep mode time of the battery, computing a charge state value from a measurement of the no-load voltage at the terminals of the battery at a wake-up time of the battery, and computing an error in the measurement of the no-load voltage due to the relaxation of the battery. The error is computed as a function of the current temperature of the battery and of a target relaxation duration modelled for each temperature. The initial value of the charge state is computed based on a comparison between the recorded and computed charge state values and as a function of the error.

Abstract: A controller for detecting voltages of battery cells in a battery pack includes converters coupled to the battery cells and switching units. An anode of each battery cell is coupled to a respective converter through a respective first path, and a cathode of each battery cell is coupled to the respective converter through a respective second path. The switching units are coupled between the battery cells and the converters. The converters are coupled to anodes of the battery cells through the switching units. When a switching unit corresponding to a battery cell is turned on, an anode of the battery cell provides an operating current and a sampling current through a respective first path to a respective converter, and the operating current flows from the anode of the battery cell through the respective converter to ground.

Abstract: A battery system includes a lithium ion battery that couples to an electrical system. The battery system also includes a battery management system that electrically couples to the lithium ion battery and controls one or more recharge parameters of the lithium ion battery. Additionally, the battery management system monitors one or more parameters of the lithium ion battery. Further, the battery management system controls the recharge parameters of the lithium ion battery based on at least one lithium plating model and the monitored parameters. Furthermore, the at least one lithium plating model indicates a relationship between the one or more parameters of the lithium ion battery and a likelihood of lithium plating occurring in the lithium ion battery.

Abstract: In a power feeding control device, N-channel first FET and second FET are located in a current path for current flowing from a positive terminal to a negative terminal. The drain of the first FET is located downstream of the source. The drain of the second FET is located upstream of the source. The cathode of a first diode is connected to the negative terminal. A first drive circuit and a second drive circuit switch ON or OFF the first FET and the second FET by adjusting the gates of the first FET and the second FET, with respect to the cathode of the first diode.

Abstract: An example foldable mobile computing device includes a first side including a first power storage device coupled to a first regulator. The device includes a second side including a second power storage device coupled to a second regulator and connected in parallel with the first power storage device. The second side is configured to articulate relative to the first side about a hinge. The device includes processing circuitry configured to determine a power storage capacity of the first power storage device and to determine a power storage capacity of the second power storage device. The device is also configured to adjust, based on the power storage capacity of the first power storage device and the power storage capacity of the second power storage device, at least one of an impedance of the first regulator or an impedance of the second regulator.

Abstract: Systems and methods for diagnosing health of a battery using in-vehicle impedance analysis. The method includes receiving a sensed current measurement for a cell of the battery; generating a current profile as a function of the sensed current measurement, including pulses to a peak current, the pulses having a pulse frequency (w); applying a current with the current profile to the cell; for each pulse in the current profile, receiving a voltage measurement for the cell that is responsive to the pulse, calculating an impedance for the cell responsive thereto, the impedance comprising a real component at the pulse frequency (RZw), and an imaginary component at the pulse frequency (IZw), identifying a battery health problem when either RZw exceeds a preprogrammed first threshold for the pulse frequency, or when IZw exceeds a preprogrammed second threshold for the pulse frequency, and storing the RZw and the IZw for the cell.

Abstract: Method and apparatus related to battery cell sampling voltage compensation are provided. The method includes after confirming that all battery cells connected to a voltage sampling apparatus are in a normal state, charging or discharging a battery pack at a preset current to obtain sampling voltages of a plurality of battery cells using the voltage sampling apparatus. The method further includes determining, based on the obtained sampling voltages of the plurality of battery cells, a battery cell requiring sampling voltage compensation in a plurality of modules. The method further includes calculating an impedance voltage of a cross-module busbar and performing sampling voltage compensation on the battery cell requiring sampling voltage compensation based on the impedance voltage of the cross-module busbar. A position of the battery cell requiring sampling voltage compensation and the impedance of the cross-module busbar can be determined.

Abstract: A battery charger is described that can support multiple battery applications with a single USB type-C port. An architecture can include a single charger transferring power to multiple battery stacks. The architecture can include a plurality of battery stacks each respectively housed in a distinct electronic device. The architecture is expandable from one charger with one USB type-C port coupled to a plurality of battery stacks, to a plurality of chargers with respective USB type-C ports all coupled to a plurality of battery stacks respectively housed in distinct electronic devices.

Abstract: The disclosure concerns a method for determining a predicted state of health of a device battery in a battery-operated machine. A state of health characteristic model for a state of health time characteristic is provided using a number of linked parameterizable characteristic functions that each indicate a state of health over a time period of ageing times, the characteristic functions being initially parameterized. A number of data points are captured that each indicate a state of health and an ageing time. A parameter of one of the characteristic functions is adapted based on the data points in the respective time periods of the characteristic functions. A parameter of another of the characteristic functions, for which there is no data point available, is also adapted. The state of health characteristic model is provided based on the adapted characteristic functions.

Abstract: Apparatus (100) and method for testing cell contact of battery cells (102) of a battery module (104), which battery cells are electrically connected in parallel via a contacting system (106, 107). The apparatus includes a sensor positioning system (108) for positioning a sensor device (110) at a plurality of test points (112) of the battery module, which is movable along a longitudinal axis (X), a transverse axis (Y), and a vertical axis (Z), and a current generation circuit (114) for generating a battery cell current (I), which is a discharging current from the battery cell or a charging current into the battery cell. The sensor device includes at least one field sensor (118), which, after the sensor device is positioned at one of the test points, detects a field in the region of the test point, which is generated by the battery cell current generated with the current generation circuit.

Abstract: A battery malfunction detection method includes: applying a preset number of vibration signals with different frequencies to a battery to be detected through a vibration generation device; collecting a response signal of the battery to be detected through a response collection device, where the response signal includes the preset number of vibration response amplitudes of the battery to be detected; determining whether the battery to be detected is malfunctioning according to the response signal.

Abstract: A method for detecting internal short circuit within an electrochemical cell, from on-line measuring and processing thermodynamics data and kinetics data on the electrochemical cell. The thermodynamics data comprises open-circuit voltage data, entropy variations and/or enthalpy variations data, and combinations thereof. The kinetics data comprises cell voltage, cell temperature, cell internal resistance and current, and combinations thereof.

Abstract: The present disclosure relates to a battery test system for a vehicle that includes a camera configured to capture an image of a vehicle identification number located on the vehicle, the camera being coupled to a processor which determines characters of the vehicle identification number from the image of the camera and correlates the characters of the vehicle identification number to a vehicle identification number database to receive battery parameters for the vehicle, a battery tester that is removably connected to terminals of a battery of the vehicle and configured to receive battery test results, and a display which conveys information relating to the battery parameters and the battery test results.

Abstract: A battery classification apparatus includes a profile generating unit configured to obtain battery information about capacity and voltage of a battery and generate a differential profile representing a corresponding relationship between the capacity and a differential voltage based on the capacity and the voltage, and a control unit configured to obtain the differential profile from the profile generating unit, detect a plurality of peaks in the obtained differential profile, and classify the battery into any one of a plurality of preset groups based on a plurality of classification conditions preset for the number of the plurality of detected peaks and the differential voltage.

Abstract: An estimation device includes: a derivation unit deriving a derivation history based on a current, a voltage and a temperature of a lead-acid battery; a first specifying unit specifying a specific gravity of an electrolyte solution; a second specifying unit specifying at least one of: a first degree of softening of a positive electrode material; a second degree of corrosion of a positive electrode grid; a third degree of sulfation of a negative electrode; and a fourth degree of shrinkage of a negative electrode material based on the specified specific gravity, the derived derivation history, and at least one of respective first-third relationships between the specific gravity, respective first-third histories and the respective first-third degrees, and a fourth relationship between a fourth history and the fourth degree; and an estimation unit configured to estimate a degree of deterioration of the battery based on the specified degree.

Abstract: A system and method of planning external electric power usage of a vehicle traction battery includes retrieving, remotely from the vehicle, data including a current charge level of a traction battery in the vehicle and an estimated range of the vehicle based on the charge level. Input of planned power usage of the traction battery by a set of devices is input remotely from the vehicle. An estimated change of the current charge level is determined based upon the planned power usage based on the current charge level, the estimated range, and the planned power usage. Based on the estimated change of the current charge level, a revised charge level of the traction battery and a revised estimated range of the vehicle is determined, and the revised charge level of the traction battery and the revised estimated range of the vehicle is output to a user computing device.

Abstract: The invention relates to a method for predicting an engine-start performance of an electrical energy storage system, in particular a motor vehicle starter battery. The method comprises the following method steps: generating engine-start data which are characteristic of the electrical energy storage system; evaluating the generated engine-start data; and outputting a result of the evaluation, which result relates to a prediction with respect to the engine-start performance of the electrical energy storage system. According to the invention, provision is made in particular for a vehicle make, a vehicle model and/or a vehicle variant of a vehicle to be started by the electrical energy storage system to be taken into account in order to evaluate the generated engine-start data.

Abstract: Discussed is a sensing apparatus that can include a voltage measuring unit configured to measure a voltage of a battery when a power is supplied thereto, an environment information measuring unit configured to measure environment information for the battery when power is supplied thereto, a connector unit configured to output a first connection signal when connected to the battery and output a second connection signal when connected to an external battery management system (BMS), a power unit configured to supply power to at least one of the voltage measuring unit and the environment information measuring unit according to an operation mode, and a control unit configured to control the operation mode of the power unit based on which of the first connection signal and the second connection signal is received from the connector unit and residual amount information of the power unit.

Abstract: The present invention relates to a method and system for evaluating insulation and lithium ion conductivity characteristics of a separator for an electrochemical device, in which insulation and lithium ion conductivity characteristics are evaluated while a separator-containing measurement object to be tested and an electrochemical device are made to face each other, and thus, the insulation and lithium ion conductivity characteristics of the separator can be evaluated by reflecting temperature and pressure changes and the like according to the actual operation state of the electrochemical device.

Abstract: In an embodiment, an apparatus is disclosed that includes a first battery management circuit. The first battery management circuit is configured to measure a voltage of a first battery cell of a battery pack and to generate a first voltage measurement based at least in part on the measured voltage of the first battery cell. The first battery management circuit is configured to receive a bit of a first response from a second battery management circuit. The bit of the first response is generated by the second battery management circuit based at least in part on a measured voltage of a second battery cell of the battery pack. The first battery management circuit is configured to sum the bit of the first response with a corresponding bit of the first voltage measurement and to provide the summed bit to a third battery management circuit as part of a second response.

Abstract: A device and method of estimating state-of-health of a battery is provided. A device of estimating a state-of-health (SOH) of a battery includes: a memory configured to load a program for calculating a state-of-balance (SOB) value by voltage of a plurality of cells constituting the battery and estimating a state-of-health balance value which is a state-of-health value of the battery to which the state-of-balance value by voltage is applied; and a processor configured to execute instructions included in the program loaded by the memory. A device and method of estimating state-of-charge of a battery is provided. A device of estimating state-of-charge (SOC) of a battery includes: a memory configured to load a program for correcting a voltage-to-remaining capacity correlation, in which a battery voltage is matched for each remaining capacity, based on a state-of-balance value by voltage of the battery; and a processor configured to execute instructions included in the program loaded in the memory.

Abstract: A power converter circuit included in a computer system may include a phase circuit and a sample circuit. The phase circuit compares a voltage level of the regulated power supply node to a reference voltage to generate a demand current that is used to adjust the voltage level of the regulated power supply node. The phase circuit also digitizes the demand current and stores the resultant bit stream in a memory circuit. The sample circuit generates timestamp information that points to particular storage locations in the memory circuit that correspond to trigger events, allowing the operation of the power converter circuit to be analyzed during different circumstances as well as to adjust operating parameters of the power converter circuit.

Abstract: An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability.

Abstract: A system and method for monitoring characteristics of an electric energy device includes generating an external short from the electric energy device. The external short occurs at a known distance from a sensor and has at least one known external resistance. The received signal representing change in electromagnetic field due to the applied external short may be analyzed to determine a signal parameter that is then analyzed in comparison to a lookup table, based on the known conditions including distance, temperature and the external resistance. The output of this analyses in comparison with expected values may be utilized to identify a characteristic of the energy device.

Abstract: A charge and discharge control device includes a controller configured to: predict, for each of vehicles included in a vehicle group, a remaining capacity of a storage battery mounted on each of the vehicles within a future predetermined period using a behavior prediction model that predicts behavior of each of the vehicle; optimize, for each vehicle, an instruction value of a charge and discharge power amount of the storage battery within the predetermined period such that an accumulation value of the charge and discharge power amounts follows a demand value for the vehicle group while minimizing a degradation amount of the storage battery using the predicted remaining capacities of the storage batteries and a battery degradation prediction model that predicts the degradation amount of the storage battery from the remaining capacity; and control a charging and discharging operation of the storage battery according to the optimized instruction value.

Abstract: Disclosed is a system and methods for measuring electrochemical state of rechargeable batteries such as state of charge (SoC) and state of health (SoH). In various aspects, the system may include an inductive coil attached to the battery and a battery current sensor. Alternating current with a fixed frequency is applied to the coil to generate magnetic fields, and the magnetic fields induce losses including Eddy current loss and a loss related to battery currents. The system compensates for the effect of the loss related to battery currents for battery electrochemical state estimation. In another aspect, the system uses both coil-based measurement and ampere hour counting (AHC) measurement for SoC measurement. The system conducts coil-based SoC measurement only occasionally to reset the accumulated error of AHC-based SoC measurement. In yet another aspect, the system combines coil-based measurement with other measurements.

Abstract: A positive electrode-side input terminal is connected to a first positive electrode-side battery terminal, a negative electrode-side input terminal is connected to a second negative electrode-side battery terminal, a first switch is connected between a first negative electrode-side battery terminal and a second positive electrode-side battery terminal, a second switch is connected between a second positive electrode-side battery terminal and a first connection point between the positive electrode-side input terminal and the first positive electrode-side battery terminal, a third switch is connected between the first negative electrode-side battery terminal and a second connection point between the negative electrode-side input terminal and the second negative electrode-side battery terminal, a positive electrode-side output terminal is connected to a line connecting the second switch and the second positive electrode-side battery terminal, and a negative electrode-side output terminal to a line connecting the

Abstract: The invention relates to the field of vehicle battery monitoring technologies, and in particular to a monitoring method, apparatus, and system for a low-voltage vehicle battery, a server, and a medium, to solve a technical problem that a capacity of an existing low-voltage vehicle battery drops too much, which causes a vehicle to fail to be started.

Abstract: Provided is a secondary battery inspection device capable of improving inspection accuracy while simplifying the inspection of a secondary battery. Value of a model parameter of a secondary battery model is identitied based on a sampling period T. In the secondary battery model, impedance of internal resistance of a secondary battery 200 is expressed by an IIR transfer function and an FIR transfer function. When impulse current I(t) is input to a specified model as the secondary battery model the value of the model parameter of which is identified, a model output voltage as a voltage change form output from the specified model is estimated. The performance of the secondary battery 200 according to the sampling period T is evaluated based on the measurement result of the voltage of the secondary battery 200 when the impulse current I(t) flows into the secondary battery 200, and the specified model output voltage.

Abstract: Systems and methods for monitoring the isolation resistance of one or more fuel cells are described herein. In one example, a system includes a current transformer having a hollow core. First and second portions of a load line from a fuel cell are located within the hollow core. The first portion of the load line is electrically between an anode of a fuel cell and an electrical load, while the second portion of the load line being electrically between a cathode of the fuel cell and the electrical load. The current transformer is configured to output an electrical signal proportional to a current passing through the hollow core. This electrical signal can then be used to determine the isolation resistance of the fuel cell.

Abstract: An examination method includes bringing conductor probes into contact with surfaces of an examination target to measure voltage or electric resistance at points on the surfaces of the examination target, and determining whether or not the voltage or the electric resistance is out of an allowable range at any of the points. The examination target is a resin current collector, an electrode sheet having an active material layer laminated on a resin current collector, a separator-attached electrode sheet in which a separator is combined with an electrode sheet, or a unit cell including one set of a positive electrode resin current collector, a positive electrode active material layer, a separator, a negative electrode active material layer, and a negative electrode resin current collector, which are laminated in order. With the examination method, a defect such as a short circuit can be easily found and production yield can be improved.

Abstract: A vehicle power supply circuit monitoring system and a vehicle power supply circuit monitoring method are provided. The vehicle power supply circuit monitoring system is adapted to a vehicle power supply and a vehicle load device, and includes a power monitoring circuit and a control circuit. The power monitoring circuit is electrically connected to the vehicle power supply and the control circuit. The power monitoring circuit monitors two different input load powers at two different time points. The control circuit calculates an external power loop equivalent impedance according to the two different input load powers. When the external power loop equivalent impedance is greater than a designed impedance threshold, the control circuit executes a warning procedure.

Abstract: A thermal monitor control system for a refuse vehicle includes a plurality of onboard devices including a first onboard device and a second onboard device, a plurality of sensors including a first sensor configured to collect a first data set and a second sensor configured to collect a second data, and a processing circuit configured to receive the first data set from the first sensor and the second data set from the second sensor, define a normal operating profile, receive a third data set from the first senor and a fourth data set from the second sensor, compare the third data set and the fourth data set to the normal operating profile, and cause the onboard messaging system to display the alert to the operator in response to determining that the third data set or the fourth data set differs from the normal operating profile.

Abstract: Battery cell monitoring systems comprising a flexible substrate and components integrated onto the flexible substrate, and methods of operating the same are disclosed. The components comprise a computing device and at least one sensor, where the at least one sensor is configured to generate sensor signals indicative of a physical state of the battery cell. The computing device is configured to hold characteristic data values which have been generated based on prior sensor signals. The computing device is configured to receive the sensor signals from the at least one sensor and to generate battery cell status data in dependence on the sensor signals and the characteristic data values.

Abstract: The present disclosure relates to a battery diagnosis system including a processor configured to: receive high-voltage battery information of a parked car; measure impedance of a battery through the received battery information; and determine, based on a comparison between a normal battery impedance and an abnormal battery impedance, that a battery having an abnormal battery impedance is an abnormal battery.

Abstract: A short circuit detection method is provided for a starting battery. The method includes acquiring status information of the starting battery in real time, estimating a state-of charge (SOC) of the starting battery by an ampere-hour integral based on the status information, and confirming, based on an estimation result for the SOC, whether the starting battery is short-circuited.

Abstract: An artificial neural network and method are provided. The method includes receiving a set of input voltages; converting a respective input voltage in said set of input voltages into a respective set of local currents using a voltage-to-current conversion; multiplying said respective set of local currents by a respective set of binary signals to establish a respective set of conditionally inverted currents; summing said respective set of conditionally inverted currents into a respective local current; summing all respective local currents into a global current; and converting the global current into an output voltage using a load circuit.

Abstract: A portable hybrid generator system includes a first unit and a second unit. The first unit includes a first housing, a first output port, and a primary energy source disposed within the first housing. The primary energy source is electrically coupled to the first output port. The second unit is separate from the first unit. The second unit includes a second housing, an input port, a second output port, and an energy storage device disposed within the second housing. The energy storage device is electrically coupled to the input port and the second output port. The energy storage device includes at least one battery. The input port and the first output port facilitate selectively electrically coupling the first unit to the second unit to charge the energy storage device. The primary energy source is specifically calibrated or calibratable to charge the energy storage device based on the at least one battery.

Abstract: This application provides a battery module and a vehicle. The battery module includes a plurality of battery cells. Each battery cell includes a battery top cover; a thermally conductive sampling piece, fitting snugly with the battery top cover; a thermally conductive connecting plate, where one end of the thermally conductive connecting plate fits snugly with the thermally conductive sampling piece; a circuit board, disposed above the battery top cover, where another end of the thermally conductive connecting plate is connected to the circuit board; and a thermometric element, electrically connected to the circuit board. The thermometric element is configured to collect a temperature signal of the thermally conductive connecting plate and transmit the temperature signal to the circuit board. The battery module provided in this application facilitates real-time and accurate collection of battery temperatures.

Abstract: Methods and systems are provided for key predictors and machine learning for configuring cell performance. One or more parameters relating to operation of a cell may be measured, via a measurement apparatus, with the cell including a cathode, a separator, and a silicon-dominant anode, and cell performance may be managed, based on the one or more parameters, with the managing including assessing the cell performance using a machine learning model. The cell may be within a battery pack that includes a plurality of cells, each of which including a cathode, a separator, and a silicon-dominant anode. One or more of the plurality of cells from the battery pack in response to a determination, based on the assessing, of a different performance of the one or more of the plurality of cells. The battery pack may be in an electric vehicle.

Abstract: A current detection device includes a main busbar and a semiconductor chip. A detected current flows through the main busbar. The semiconductor chip is spaced apart from the main busbar. The semiconductor chip includes a branch busbar, a detection part, and an output part. The branch busbar is connected in parallel with the main busbar. The detection part is arranged adjacent to the branch busbar and detects a first magnetic field generated based on a branch current flowing from the main busbar to the branch busbar. The output part calculates and outputs a current value based on the first magnetic field detected by the detection part.

Abstract: A sensor arrangement for a network of busbar links of a battery module is provided, the sensor arrangement comprising: an array of sensors, each sensor having an output arranged to provide an indication of current in a respective busbar link of the network; a processor coupled to the outputs of the sensors and configured to: receive data from the sensor outputs; process the data to determine a current in each of a set of busbar links that are connected at a node of the network; and compare the currents in the busbar links of the set to determine an overall current at the node.

Abstract: The present disclosure relates to an apparatus and method for diagnosing a state of a battery pack, and more particularly, to an apparatus and method for diagnosing a state of a battery pack based on a SOC of a battery module included in the battery pack. According to the present disclosure, since the SOC of the battery module corresponding to an induced abnormal situation is estimated and the state of each battery module is diagnosed based on the estimated SOC, a risk factor that may occur in the battery module may be diagnosed in advance.

Abstract: A computer-implemented method for improved determination of state of health (SoH) of a battery of a device can include determining that the device is in a charging state such that a charge of the battery is increased over a charge procedure; determining that a state of charge (SoC) metric of the battery reported by a battery gauge system has increased by a fixed SoC interval; determining a charge time interval over which the SoC metric of the battery has increased by the fixed SoC interval; and determining a SoH metric indicative of the SoH of the battery based at least in part on the charge time interval; wherein determining the SoH metric is based at least in part on a known relationship between a reference time interval representative of time required to increase a reference battery at full SoH by the fixed SoC interval and the charge time interval.

Abstract: Testing of a battery module can be conducted using monitoring electronics attached to the battery module. Stimulus can be applied to the battery module and removed. After removal of the stimulus, the monitoring electronics can collect signals from the monitoring electronics reflecting parameters of the battery module as it relaxes back to a non-stimulated state. The stimulus can be provided by test equipment or by components of a system in which the battery module, having attached monitoring electronics, is implemented. The monitoring electronics attached to the battery module can provide autonomous recording of signals associated with the battery module that can provide data regarding the status of the battery module or one or more batteries contained in the battery module.

Abstract: A method for determining an open circuit voltage of an electrochemical device, including: a. collecting measurement data of the device, the measurements i. including at least the current It and the voltage Ut at the terminals of the device, ii. being time-stamped, and iii. being acquired during an uninterrupted and operational functional period of the device; b. calculating, for a plurality of times t, iv. a corrected intensity by applying a correction function to the measured intensity It, and v. an instantaneous charge based on a time series of the corrected intensity so as to obtain, for each time t, a set of collected and calculated data; c. grouping the data sets into ranges of instantaneous charge values based on the charge value of each set; and d. separately for each group, calculating an open circuit voltage of the device.

Abstract: The invention relates to a method and a device for measuring, in real time and in situ, thermodynamic data of a battery (enthalpy and entropy). The object of the invention is to provide a reliable method for measuring, in situ, online and in real time, the variation in entropy (?S) of a battery.

Abstract: A method for periodically activating a battery unit applied to an electronic device equipped with the battery unit includes steps as follows. A plurality of intervals are defined, wherein each of the intervals has an initial voltage value and a target voltage value, and the initial voltage value is greater than the target voltage value. An activation strategy for each of the intervals is defined. A voltage value of the battery unit is detected. One of the intervals is selected as a selected interval according to the voltage value of the battery unit, wherein the voltage value of the battery unit is less than or equal to the initial voltage value of the selected interval, and the voltage value of the battery unit is greater than the target voltage value of the selected interval. The battery unit is activated according to the activation strategy of the selected interval.