LG Energy Solution Patente

According to some embodiments, a battery diagnosis device includes a data management unit configured to collect an electric signal dataset of a welding process of forming an electrode tab on a plurality of sample battery cells and collect a fracture energy dataset of a fracture experiment for measuring a tensile strength while separating the electrode tab from the plurality of sample battery cells and a control unit configured to generate a fracture energy estimation model for estimating fracture energy values corresponding to electric signal values based on the electric signal dataset and the fracture energy dataset, and to estimate fracture energy values corresponding to electric signal values of a target battery cell using the fracture energy estimation model.

A battery managing apparatus according to an embodiment of the present disclosure includes a profile acquisition unit configured to acquire a first profile for each of a plurality of batteries included in a battery pack; and a diagnosis unit configured to calculate a target value based on a capacity value for each of the plurality of batteries as a diagnostic factor on a basis of a first target point included in each of the plurality of first profiles, generate a distribution profile indicating a correspondence relationship between a plurality of calculated target values and the number of each of the plurality of target values, determine whether the distribution profile satisfies a predetermined condition, and diagnose a state of the battery pack according to a determination result.

A battery managing apparatus according to an embodiment of the present disclosure includes a profile acquisition unit configured to acquire a first profile for each of a plurality of batteries included in a battery pack; and a diagnosis unit configured to calculate a target value based on a capacity value for each of the plurality of batteries as a diagnostic factor on a basis of a first target point included in each of a plurality of first profiles, generate a distribution profile indicating a correspondence relationship between a plurality of calculated target values and the number of each of the plurality of target values, determine whether the distribution profile satisfies a predetermined condition, and diagnose a state of the battery pack according to a determination result.

A positive electrode may include both a first positive electrode active material having an olivine crystal structure and a second positive electrode active material having a layered crystal structure in the positive electrode active layer, resulting in high safety and excellent charge/discharge capacity of the positive electrode. In addition, the positive electrode may have the advantage of excellent energy density and output, which may be a result of including a first positive electrode active material represented by a chemical formula as defined in the specification and which includes three or more metals in addition to lithium.

High-strength carbon steel suitable as a material for a can for secondary batteries, a metal can manufactured by processing the same, and secondary batteries manufactured by accommodating an electrode assembly in the can are provided. A material for manufacturing the metal can is provided in the form of a meal plate. The metal can is manufactured by subjecting the meal plate to deep drawing. The metal can is manufactured from a carbon steel containing a precipitation strengthening element including Nb in a ratio of more than 0.05 wt% and 0.100 wt% or lower. The carbon steel contains C in a ratio of 0.01 wt% or higher and 0.100 wt% or lower. The carbon steel contains Mn in a ratio of 0.1 wt% or higher and 0.5 wt% or lower. The carbon steel contains Si in a ratio of more than 0.001 wt% and 0.5 wt% or lower.

According to some embodiments, a simulation system includes an interface panel configured to receive manipulation inputs from an operator; a main simulator configured to load training contents that reproduces processes for manufacturing a cylindrical battery through electrode etching based on the manipulation inputs and provide the training contents to the operator through interaction with the operator; and a display configured to display detailed images of the processes based on characteristics of the training contents.

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According to some embodiments, a data management system includes a first inspection device configured to generate a first inspection image and a first inspection value related to a result of a first manufacturing process of a battery cell, a second inspection device configured to generate a second inspection image and a second inspection value related to a result of a second manufacturing process of the battery cell, a collation device configured to receive the first inspection image, the first inspection value, the second inspection image, and the second inspection value using a plurality of communication schemes, and a management server configured to record the first inspection image and the second inspection image transmitted from the collation device separately from the first inspection value and the second inspection value transmitted from the collation device.

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According to some embodiments, a battery inspection system includes a transport device configured to transport a battery cell, an inspection device configured to generate a plurality of inspection images for the battery cell, and a control device configured to determine a correction value for an appearance dimension of the battery cell based on the plurality of inspection images and determine whether the battery cell is defective based on the correction value.

There are provided a system control apparatus for a power system and a control method thereof. The system control apparatus includes a main protector installed in a main power channel, first to n-th sub-protectors installed in first to n-th secondary power channels, respectively, and a controller to determine a location of occurrence of a short circuit by controlling at least one of the main protector and the first to n-th sub-protectors when it is determined that the short circuit has occurred in the power system based on a measurement value of a current flowing in the main power channel. n is a natural number of 2 or greater.

A battery management apparatus according to the present disclosure includes a profile obtaining unit configured to obtain a first profile for each of a plurality of batteries included in a battery pack; and a diagnosing unit configured to calculate a target value for each of the plurality of batteries based on a first target point or a target ratio for each of the plurality of first profiles, generate a distribution profile representing a corresponding relationship between the calculated plurality of target values and the number of each of the plurality of target values, determine whether the distribution profile satisfies a predetermined condition, and diagnose a state of the battery pack based on the determination result.

A slot die coater of the present disclosure has a slot for discharging a coating solution in the opposite direction of gravity onto a surface of a substrate that is continuously driven and transferred by a coating roll, and the slot die coater includes a first die block; and a second die block forming the slot between the first die block and the second die block, wherein a center of rotation axis of the coating roll is positioned toward the second die block rather than an upper part of a first die lip forming a tip of the first die block with respect to the substrate.

The present disclosure relates to a positive electrode and a method of manufacturing the same. The positive electrode includes lithium manganese iron phosphate with an olivine structure as a positive electrode active material, which provides high structural stability. In addition, the lithium manganese iron phosphate can be easily controlled for particle size distribution by doping and/or substituting with one or more metals, therefore the positive electrode including the same has the advantages of excellent rolling density and energy density.

The present disclosure relates to a battery module, and a battery module according to one aspect of the present disclosure may include a plurality of battery cells; a controller controlling the plurality of battery cells; and a flexible circuit board electrically connecting the plurality of battery cells and the controller, wherein the flexible circuit board may include a substrate body including a plurality of coupling members each coupled to the plurality of battery cells and a plurality of circuit members each connecting the plurality of coupling members and the controller; and a film including a cover member in the shape of a thin film covering an outer surface of the substrate body and a partition member extending from the cover member and interposed between neighboring circuit members of the plurality of circuit members.

Disclosed herein relates to a secondary battery manufacturing apparatus including: a folding device configured to manufacture an electrode assembly, the electrode assembly comprising a plurality of unit cells stacked in a first direction and a separator sheet wound to cover an upper surface, a bottom surface, a first side, and a second side of each of the plurality of unit cells; a cutting device configured to cut a first side part of the separator sheet to form a first cutting region extending in a second direction on the separator sheet; and a taping device configured to attach a tape connecting two portions of the separator sheet separated by the first cutting region to the separator sheet.

A positive electrode active material including a compound represented by Chemical Formula 1 having an olivine structure in the core is provided. The positive electrode active material including the compound represented by Chemical Formula 1may be manufactured by chemical vapor deposition (CVD) using a solid-state carbon source, providing a uniform porous carbon layer on the surface of the core.

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According to exemplary embodiments, a method for managing cell tracking data is provided. The method comprises the steps of: loading cell tracking data including an unrecognized jelly roll ID and a jelly roll ID adjacent to the unrecognized jelly roll ID, wherein the jelly roll ID is used to distinguish jelly rolls which are wound structures of a positive electrode, a negative electrode, and a separator, and restoring the unrecognized jelly roll ID on the basis of the jelly roll ID.

The present disclosure relates to a battery module assembly apparatus, and according to an aspect of the present disclosure, the battery module assembly apparatus is a battery module assembly apparatus for assembling a circuit board to a semi-assembly of a battery module, and may include a fixing frame that is fixed to a side of the semi-assembly; and a rotating frame that is rotatably coupled to the fixing frame and configured to move the circuit board placed on a side of the rotating frame to an outer surface of the semi-assembly.

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