LG Energy Solution Patente

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A calibration apparatus and method for a charger/discharger are provided. The charger/discharger calibration apparatus according to the present disclosure includes acquiring reference measurement information from a reference charger/discharger, the reference measurement information being a measurement result of charge/discharge information of a first battery while a charge/discharge test is performed on the first battery by the reference charger/discharger, acquiring target measurement information from a target charger/discharger, the target measurement information being a measurement result of charge/discharge information of a second battery while the charge/discharge test is performed on the second battery by the target charger/discharger, and generating calibration information for the target charger/discharger by comparing the reference measurement information with the target measurement information.

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A battery cell according to an embodiment of the present disclosure includes an electrode assembly in which a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode are wound around a winding axis to define a core and an outer circumferential surface, the first electrode including a first uncoated portion that is not coated with an active material layer along a winding direction, a housing including an open portion on one side and configured to accommodate the electrode assembly through the open portion, a current collector including an edge portion disposed on the electrode assembly, an uncoated portion coupling portion extending inward from the edge portion and coupled to the first uncoated portion, and a terminal coupling portion spaced apart from the uncoated portion coupling portion, located at a central portion, and exposed to outside of the housing, a terminal extending through a closed portion of the housing located opposite to the open portion to be exposed to outside of the housing, and coupled to the terminal coupling portion, and a terminal block configured to be coupled to an inner side of the current collector.

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The present invention relates to an anode assembly, a manufacturing method therefor, and an all-solid-state battery comprising same, the anode assembly comprising a first layer that includes LiX, a second first layer that includes amorphous carbon, and an anode current collector, wherein X is a halogen element. According to the present invention, the anode assembly having excellent charge and discharge efficiency and capacity retention rate, the manufacturing method therefor, and the all-solid-state battery comprising same can be provided.

A battery pack according to an embodiment of the present disclosure includes a plurality of battery cells; a pack case configured to store the plurality of battery cells and having a discharge hole configured to discharge gas generated inside to the outside; a first protective cover configured to cover a first area, which is a partial area of the discharge hole; and a second protective cover installed closer to the discharge hole than the first protective cover and configured to cover a second area, which is another partial area of the discharge hole, so as to have a cover area overlapping the first protective cover.

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A battery diagnosis apparatus according to an embodiment disclosed herein includes an information obtaining unit configured to obtain a shunt voltage and a shunt current of a current detection resistor (shunt resistor), a storage unit configured to store a voltage of the battery pack, and a control unit configured to store a first voltage, which is a voltage of the battery pack at a first point in time corresponding to a rest state of the battery pack, and a second voltage, which is a voltage of the battery pack at a second point in time after a first interval from the first point in time and diagnose a state of the current detection resistor, based on the difference between the second voltage and the first voltage and the shunt current.

A battery management apparatus according to an embodiment disclosed herein includes a voltage obtaining unit configured to obtain voltage data of each of a plurality of battery cells over time and a controller configured to calculate a first value regarding a voltage behavior of each of the plurality of battery cells in each of a plurality of cycles based on the voltage data obtained in the plurality of cycles, calculate a second value through normalization of the first values in each of the plurality of cycles, calculate time-series data of the second value of each of the plurality of battery cells for the plurality of cycles, and analyze a trend of time-series data of the plurality of battery cells to detect an abnormal battery cell.

The present disclosure provides additive materials to be added to sulfide-containing solid electrolyte materials for use in solid state batteries, solid state batteries using such additive materials in their solid electrolyte materials, and methods of making such solid state batteries. The additive materials provided herein allow the solid state batteries using such additive materials to operate under relatively lower pressures compared to solid state batteries without such additive materials.

The present disclosure provides additive materials to be added to sulfide-containing solid electrolyte materials for use in solid state batteries, solid state batteries using such additive materials in their solid electrolyte materials, and methods of making such solid state batteries. The additive materials provided herein allow the solid state batteries using such additive materials to operate under relatively lower pressures compared to solid state batteries without such additive materials.

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A battery pack according to certain aspects of the present disclosure comprises: a plurality of battery cells; a pack frame in which an upper part is opened, and the battery cells are mounted or the battery cells are mounted while being housed in a module frame; and a pack cover that covers the pack frame, wherein the pack cover includes a first plate and a second plate located on an upper part of the first plate, and wherein an insulating coating is formed on at least a part of a surface of the first plate.

A battery diagnosis device according to an embodiment disclosed in this document may include an acquisition unit that acquires pack data related to a state of a battery pack and cell data related to a state of a plurality of battery cells included in the battery pack, an identification unit that identifies, based on the pack data, a first OCV section in which a voltage standard score (Z-Score) difference between the plurality of battery cells decreases as an open circuit voltage (OCV) of the battery pack increases and a second OCV section in which the voltage standard score difference between the plurality of battery cells increases as the OCV of the battery pack increases, an extraction unit that extracts, based on the cell data, a diagnostic feature value from voltage standard scores of the plurality of battery cells corresponding to each of the first OCV section and the second OCV section and a diagnosis unit that diagnoses an abnormality of the battery pack based on the extracted diagnostic feature value.