LG Energy Solution Patente

A battery control device, according to one embodiment of the present invention, is located in a battery system including a plurality of batteries, and may comprise: at least one processor; and a memory that stores at least one command executed by the at least one processor. The at least one command may include: a command for monitoring the voltage of each of the batteries while the batteries are connected in parallel to a DC link and charged; a command for sequentially disconnecting batteries that have reached a predetermined target voltage from the DC link; and a command for reconnecting a battery, among the batteries disconnected from the DC link, of which the voltage difference with the last battery connected to the DC link is within a set range when the last battery connected to the DC link reaches the target voltage, to the DC link.

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According to an embodiments of the present disclosure, provided is a bipolar unit cell comprising:a laminate which includes a positive electrode current collector, a positive electrode material layer formed on one surface of the positive electrode current collector, a negative electrode current collector, a negative electrode material layer formed on one surface of the negative electrode current collector, and a separator, and in which the positive electrode material layer and the negative electrode material layer are stacked so as to face each other while interposing a separator between them, anda sealing portion that is attached form the other surface of the positive current collector to the other surface of the negative current collector to integrally form the laminate and seal the inside,wherein a conductive layer is formed on the outside of at least one of the positive electrode current collector and the negative electrode current collector, and a bipolar battery having a structure in which two or more of the bipolar unit cells are stacked.

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Disclosed is a battery module. The battery module includes a frame having a space therein and configured to extend along a front and rear direction and have a top plate; a battery array positioned inside the frame and including a plurality of battery cells stacked along a right and left direction; and an elastic partition compressed between the battery array and the top plate and configured to extend along the front and rear direction.

A secondary battery separator supply device related to one example of the present invention comprises a plurality of separator modules arranged to supply a separator travel path of a lamination process with separators, and a housing arranged to allow for the plurality of separator modules to be accommodated, and arranged with a guide rail connecting the separator travel path and a gateway in a direction different from the travel direction of the separator, wherein the plurality of separator modules may be mounted on the housing to move in a direction closer to or farther from the gateway along different guide rails, and may be arranged to be positioned at a supply position on the separator travel path upon a supply mode and to be positioned at a replacement position capable of being exposed to the outside of the housing upon a replacement mode.

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An apparatus for diagnosing a battery according to an embodiment of the present disclosure comprises a profile obtaining unit configured to obtain a charging profile representing a voltage change of a battery in a charging process; and a control unit configured to calculate a voltage change amount of the battery at a charging start point of the charging profile, calculate a target resistance of the battery based on the calculated voltage change amount, and diagnose a state of the battery by comparing the target resistance with a first resistance profile in which a target resistance of the battery calculated in a previous charging cycle is stored.

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The present disclosure relates to a battery module including: a plurality of battery cells; a module case configured to store the plurality of battery cells and having a plurality of venting holes formed on one side thereof; and a barrier member provided inside the module case and configured to partition the plurality of battery cells into a plurality of cell groups and to cover the venting hole corresponding to each cell group.

A fire-resistant pad according to the present disclosure may comprise a thermal insulation layer containing a silicone-aerogel composite including silicone and aerogel, wherein the silicone-aerogel composite may contain a predetermined amount of aerogel.

The present invention provides a battery device comprising: a housing including a base frame and a top frame; a plurality of battery cells disposed on the base frame; a top pad covering the plurality of battery cells and in contact with the plurality of battery cells; and a flame blocking cover attached to the top pad and spaced apart from the top frame with a venting space therebetween.

According to an embodiment disclosed in the present document, a battery diagnosis device may include: an information acquisition interface for acquiring time-series data on a voltage of each of a plurality of battery banks included in a battery pack; and a processor, wherein the processor calculates each piece of filtering data by removing noise from the time-series data of each of the plurality of battery banks, calculates each piece of first feature data and each piece of second feature data by converting each piece of filtering data, calculates a first index value and a second index value corresponding to each of the plurality of battery banks on the basis of each piece of the first feature data and each piece of the second feature data, and diagnoses a state of each of the battery banks on the basis of at least a part of the first index value and the second index value.

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A power control device according to an embodiment of this document includes a power control unit electrically connected to a battery and related to power supply, at least one area control unit electrically connected to the power control unit, and an end device electrically connected to the electric power control unit, in which the power control unit is configured to receive first power from the battery, transmit second power that is at least a part of the received first power to at least one of the end device, the at least one area control unit, or any combination thereof, and operate the end device based on the second power.

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A thermal barrier pad is provided including: a porous insulation absorbing material having a first main surface and a second main surface; an endothermic solution composition absorbed in the insulation absorbing material; a heat conductive sheet covering at least one of the first main surface and the second main surface of the insulation absorbing material; and a heat dissipating pouch surrounding the insulation absorbing material and the heat conductive sheet and including a metal layer, wherein the endothermic solution composition includes: about 0.20 wt.% to about 0.45 wt.% of a surfactant; about 0.3 wt.% to about 5.0 wt.% of a thickening agent; and about 60 wt.% to about 80 wt.% of water.

The present disclosure relates to a battery module including: a plurality of battery cells; a module case configured to store the plurality of battery cells and having a plurality of venting holes formed on one side thereof; and a barrier member provided inside the module case and configured to partition the plurality of battery cells into a plurality of cell groups and to communicate each of the plurality of cell groups with the venting hole corresponding thereto.

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The present disclosure relates to a separator for an electrochemical device and a method for manufacturing the same. In particular, the separator according to an aspect of the present disclosure has an advantage of improving pore characteristics of the separator manufactured by electrospinning, thereby improving electrochemical performance when the electrospun separator is used in an electrochemical device.

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Disclosed is a battery pack. The battery pack includes a case providing a space therein and having a pack cover; a battery module located inside the case; a module cover located between the battery module and the pack cover and spaced apart from the pack cover; and a fastening member configured to fix the inner cover and the pack cover

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