Abstract: A battery apparatus is disclosed including a cell assembly including a plurality of battery cells; a housing having an accommodation space accommodating the cell assembly therein; a cooling port allowing a cooling fluid to flow into the accommodation space; a plurality of cell monitoring units disposed in the accommodation space to monitor the plurality of battery cells, respectively; and an antenna disposed outside the accommodation space and performing wireless communication with the plurality of cell monitoring units.

Abstract: The present disclosure relates to an EIS measurement apparatus, and an apparatus and method for detecting a temperature of a busbar using EIS. According to an embodiment, a busbar temperature detection apparatus using EIS is an apparatus for detecting a temperature of a busbar formed between a plurality of cells or modules, and may include an EIS measurement unit configured to additionally assign an EIS measurement channel to the busbar and to measure impedance from an electrical signal applied to the busbar, a temperature estimation unit configured to estimate a temperature of the busbar based on the impedance measured by the EIS measurement unit, and an abnormality detection unit configured to detect an abnormal temperature of the busbar by comparing the temperature estimated by the temperature estimation unit with a preset reference temperature.

Abstract: A remote battery diagnostic apparatus includes a remote controller remotely disposed from a device in which a battery including a plurality of battery cells is disposed and remotely receiving discrete time voltage data of each of the plurality of battery cells from a battery management controller of the battery, wherein the remote controller detects a battery cell outside a normal range of fluctuation index distribution data in which the plurality of battery cells are distributed according to a voltage fluctuation index of the discrete time voltage data and generates diagnostic information for the battery.

Abstract: The present disclosure relates to a device and a method for detecting a battery abnormality using a voltage deviation variation. According to one embodiment of the present disclosure, the device includes: a memory configured to store at least one instruction for detecting a battery abnormality using a voltage deviation variation; and a processor configured to perform an operation according to the instruction, wherein the processor is configured to: calculate a voltage change of the battery and store the calculated voltage change as a variable; and calculate a Differential Deviation Voltage Detection (DDVD), which is a change in voltage difference among respective cells within a battery module, and detect a battery abnormality using the voltage deviation variation (DDVD) and the stored variable.

Abstract: Proposed are an electrochemical impedance spectroscopy measurement apparatus and method, and a battery system. The electrochemical impedance spectroscopy measurement apparatus includes an EIS measurement part connected to each of a plurality of battery cells included in a battery module, and configured to perform electrochemical impedance spectroscopy (EIS) measurement on each of the plurality of battery cells during AC discharge of the battery module, and an AC discharge switching part connected to the battery module to form an AC discharge path, and configured to supply a driving voltage to a power consumption distribution switching element included in the AC discharge path through a plurality of driving voltage supply paths connected to nodes of the plurality of battery cells electrically connected.

Abstract: An electrochemical impedance spectroscopy measurement apparatus, method, and a battery system are provided. The method and the battery system use the apparatus. The electrochemical impedance spectroscopy measurement apparatus includes an EIS measurement part, and an AC discharge switching part. The EIS measurement part is connected to each of a plurality of battery cells included in a battery module, and is configured to perform electrochemical impedance spectroscopy (EIS) measurement on each of the plurality of battery cells during AC discharge of the battery module. The AC discharge switching part is connected to the battery module to form an AC discharge path so that AC discharge of the battery module is performed for electrochemical impedance spectroscopy (EIS) measurement in the EIS measurement part. The AC discharge path is connected to a node with the highest voltage among a plurality of nodes of the plurality of battery cells electrically connected.