For lithium-ion batteries that are composed of multiple battery cells and have a flat region in the SOC-OCV characteristic curve where the rate of change in open circuit voltage with respect to state of charge is less than or equal to a predetermined value, an equalization method is used to…
An apparatus for detecting abnormal cell of battery module includes a charging current detector configured to detect whether a charging current reaches a first criterion during charging of a battery module comprising a plurality of battery cells, a state of charge (SOC) detector configured to…
The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and a sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, a maximum state…
A battery pack includes: a pair of external terminals; a pair of first connection terminals; a first battery comprising a plurality of first battery strings connected in parallel between the pair of first connection terminals, each of the plurality of first battery strings comprising a plurality of…
A method for monitoring a status of an energy storage system connected to a power converter is disclosed. The energy storage system comprises a plurality of interconnected energy storage cells, and the power converter is configured to output power from the energy storage system to a power…
The present disclosure relates to a battery cell replacement detection apparatus and method, and is directed to providing a mechanism that can prevent the mount of non-genuine batteries in a battery pack by detecting whether the battery cell in the battery pack has been replaced. To achieve this…
A method for controlling an electrified vehicle (EV) having a battery pack includes transmitting, by the EV, a plurality of battery operation characteristics to a remote server over a period of time during which the battery pack undergoes a plurality of charge-discharge operations, and charging and…
This battery pack comprises: an electric circuit element part which is for use in assessment of a plurality of secondary batteries and which is disposed so as to be connectable to the plurality of secondary batteries; and a switching part connected to the electric circuit element part and to the…
A method, system, node and device are disclosed. A collector device configured to communicate with a vehicle system, a health node and at least one sensor is described. The collector device includes a communication interface configured to receive at least one measurement from the at least one…
Disclosed are a method and a device for detecting inconsistency of single cells in vehicle battery, and a medium. The method includes obtaining current battery data for a vehicle under test, determining whether the current battery data corresponds to a charging or discharging condition, and…
A battery apparatus (1) comprises a battery module (20) including a plurality of battery cells (210) and a battery management system (10) that receives operation information including mode information and task information about an operation being performed by the battery module (20) from the…
An apparatus and method for detecting a defective battery cell is proposed. The proposed apparatus includes a charger for supplying current to cause a battery cell to maintain a constant voltage, a measurement part for measuring the voltage and current of the battery cell, and a controller for…
A method of setting information about a battery pack includes deriving, by a main control unit (MCU), information about a number of a plurality of battery cells based on a set resistance value connected to an input terminal of the MCU; when the derived number of the plurality of battery cells and a…
An abnormal cell detection method of a battery pack including a plurality of cells, the method including obtaining a first plurality of discharge rates for each cell during a first rest period in a cell balancing state, prohibiting a cell balancing of the plurality of cells if a first cell having a…
An apparatus includes a first sampling switch coupled between a first voltage bus and a sampling capacitor, a first clock generator configured to produce a first gate drive signal fed into a gate of the first sampling switch, the first clock generator comprising a first capacitive coupled clock…
A method for measuring electrical quantities in an electrical system includes obtaining a first set of known electrical outputs of an electrical quantity sensor at a first temperature. The method also includes obtaining a second set of known electrical outputs of the electrical quantity sensor at a…
The present invention provides a battery pack comprising a slave BMS which diagnoses an error in a battery module. The battery pack of the present invention includes a master BMS and a first slave BMS. The first slave BMS, when an error has occurred in a first battery module, determines whether or…
Example devices and techniques are described herein for determining a relative state-of-charge of a battery. An example device includes memory, a battery, a temperature sensor and processing circuitry coupled to the memory and the temperature sensor. The temperature sensor may be configured to…
A method for estimating battery cell capacity may comprise deriving a discharge curve for each battery cell included in a module including a plurality of battery cells; deriving a charge curve for each battery cell included in the module; calculating an additional dischargeable capacity of a second…
A system for monitoring a battery module having a plurality of cells includes a sensor adapted to obtain respective cell voltages of the plurality of cells. The controller is adapted to receive data from the sensor, the controller having a processor and tangible, non-transitory memory on which…
Disclosed are a battery cell sampling voltage compensation method and apparatus and an electric apparatus. 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…
An electric aircraft battery pack that includes an integrated battery management component, which determines if a power supply connection between the battery pack and the electric aircraft should be terminated due to a failure, defect, or malfunction of the battery pack, such as a failure of a…
Provided are a battery sampling chip and a battery management system. The battery sampling chip includes: a selector module, including a first multiplexer and a second multiplexer, wherein the first multiplexer and the second multiplexer are both used to collect status data of a first group of…
A robotic system for manipulating an electrical component between a first location and a second location, the system comprising: a movement element for moving a manipulation tool between the first location and the second location; the manipulation tool having one or more gripping elements for…
The invention discloses a battery device, a detection method thereof, and a screening method and device of a battery unit. A difference between characteristic values of any two battery units in the target charge state within a first preset range is controlled. Through the difference in…
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…
A battery monitoring system includes a first group of a plurality of battery cells connected in series and including a first battery cell at a highest potential and a second battery cell at a lowest potential; a second group of a plurality of battery cells connected in series and including a third…
A method for determining a voltage inflection point of a cell core in a LFP battery includes: charging the LFP battery with a first current value and monitoring the State of charge (SOC) of the LFP battery, the first current value being greater than a predetermined threshold of current; if the SOC…
A current application unit includes a load element, a switching element, and a shunt resistor connected in series between both terminals of an assembled battery, and a drive control unit of the switching element to apply an alternating current having a predetermined frequency to the assembled…
A battery monitoring device for monitoring an assembled battery having multiple battery cells includes: a range specifying unit that specifies a detection range; a voltage detection unit that detects a voltage of each battery cell in the detection range, includes an A/D converter for inputting a…