LG Energy Solution Patente

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An electrode manufacturing apparatus according to an embodiment of the present disclosure includes a pair of rolls arranged side by side with a gap between the pair of rolls; a first bearing rotatably supporting the roll; a second bearing facing the first bearing in an axial direction of the roll and rotatably supporting the roll; and a gap adjustment unit configured to adjust at least one of a gap between the two first bearings supporting the pair of rolls, or a gap between the two second bearings supporting the pair of rolls.

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The present invention relates to a test device for testing a performance of a battery, and more specifically, relates to a cycling test device for testing a performance of a battery by repeating charging and discharging of the battery within a constant temperature for a long period of time.According to one example of the present invention, a cycling test device may be provided, which comprises: a first refrigerator having a cooling capacity for maintaining a temperature in a chamber at a constant temperature in consideration of a heat load in the chamber; a second refrigerator provided to be separated from the first refrigerator and having a cooling capacity greater than the cooling capacity of the first refrigerator, to lower the temperature in the chamber; and a control part controlling the second refrigerator to be selectively driven in cooling operation for lowering the temperature in the chamber.

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Example embodiments provide a battery pack. The battery pack includes: a pack housing including plates and a side wall; first and second battery cell assemblies on the plates; first and second exhaust devices coupled to the side wall, in which the first exhaust device is closer to the first battery cell assembly than the second exhaust device and the second exhaust device is closer to the second battery cell assembly than the first exhaust device; a first forced exhaust motor configured to open the first exhaust device; and a second forced exhaust motor configured to open the second exhaust device.

The present disclosure relates to a battery pack including a plurality of battery cells that can be charged and discharged. A battery pack according to an embodiment of the present disclosure may include a plurality of battery cells, a case forming an internal space in which the plurality of battery cells are accommodated, and a reinforcing member interposed between inner walls of the case to prevent deformation of the case, wherein the reinforcing member may include a first reinforcing member contacting one inner wall of the case, a second reinforcing member contacting the other inner wall of the case, and a third reinforcing member formed thicker than the first and second reinforcing members and connecting the first and second reinforcing members between the first and second reinforcing members. At this time, the third reinforcing member may have a rod shape extending in a length direction of the battery cell, and the third reinforcing member may include a through hole formed along a direction in which the third reinforcing member extends.

An electrode assembly according to the present disclosure includes a plurality of electrodes having electrode tabs and an electrode lead coupled to the electrode tabs, wherein the plurality of electrode tabs include a first type electrode tab and a second type electrode tab coupled to one surface of the electrode lead and formed to extend longer than the first type electrode tab.

The present invention relates to a method of manufacturing an all-solid-state battery, comprising: (1) manufacturing an all-solid-state battery by stacking a positive electrode current collector, a positive electrode layer, a solid electrolyte layer, a negative electrode layer, and a first negative electrode current collector in a sequence; (2) charging and discharging the manufactured all-solid-state battery; (3) peeling off and removing the first negative electrode current collector from the all-solid-state battery in a discharged state; and (4) disposing a second negative electrode current collector in contact with the negative electrode layer; and an all-solid-state battery manufactured by the above method.

The present disclosure may provide a battery module including a plurality of battery cells having a storage portion and a sealing portion, respectively, and configured to be stacked on each other, a module case configured to store the plurality of battery cells in an inner space, a bus-bar assembly located on a side of a terrace portion where an electrode lead is located, among the sealing portions of the battery cells, and electrically connected to the electrode lead, and a pressing member coupled to the bus-bar assembly and configured to pressurize the terrace portion when internal pressure of the battery cell increases.

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The present disclosure relates to a secondary battery that can be charged and discharged and a method for manufacturing such a secondary battery. A secondary battery according to the present disclosure may include an electrode assembly; a pouch-type exterior material having an internal space that accommodates the electrode assembly and an exterior material opening that allows the internal space to communicate with the outside; and a cover member inserted into the exterior material opening, wherein the exterior material may include a plurality of wing portions folded to meet an outer surface facing the outside among surfaces of the cover member, and the plurality of wing portions may be coupled to the outer surface of the cover member to seal the internal space. A method for manufacturing a secondary battery according to the present disclosure may include a preparation step of preparing an electrode assembly and an exterior material sheet where a plurality of wing portions are formed; a packaging step of wrapping the electrode assembly with the exterior material sheet so that an internal space accommodating the electrode assembly and an exterior material opening allowing the internal space to communicate with the outside are formed; a cover member insertion step of inserting a cover member into the exterior material opening; a folding step of folding the plurality of wing portions so that the plurality of wing portions meet an outer surface facing the outside among surfaces of the cover member; and a sealing step of sealing the internal space by coupling the plurality of wing portions and the outer surface of the cover member.

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The present disclosure relates to a separator for an electrochemical device, a method for manufacturing the same and an electrochemical device including the separator, and more particularly, to a separator for an electrochemical device using different binders in a coating layer and patterning the coating layer, thereby reducing a difference between positive electrode adhesive strength and negative electrode adhesive strength, improving wetting and reducing resistance, a method for manufacturing the same and an electrochemical device including the separator.

A data collection device according to an embodiment disclosed in the present document may comprise: a memory for storing a plurality of shading data; and a processor that determines a data set including the plurality of shading data and compresses and manages the data set.

A method of controlling a cycling pressure of a secondary battery can include assembling the secondary battery by stacking a cathode, a separator, and an anode in order; activating the secondary battery by applying a pressure of 5 MPa or less; and cycling the secondary battery by applying the pressure of 5 MPa or less.

A data collection device according to an embodiment disclosed herein may include a data acquisition unit configured to acquire data from a vehicle, and a processor configured to determine a compression environment for compressing the data based on the type of data according to a state of the vehicle and compress and manage the data based on the compression environment.

A diagnosis apparatus according to an embodiment disclosed herein includes a first information generation unit configured to receive an infrared (IR) signal transmitted from an external transmitter and generate first information related to a frequency of the IR signal, a second information generation unit configured to receive the IR signal and generate second information related to a light quantity of the IR signal, and a processor configured to diagnose a state of the transmitter based on the first information and the second information.

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The present invention relates to a dry electrode including a current collector, and an electrode mixture film including an electrode active material and a fiberizable binder disposed on the current collector, wherein the current collector has a modulus of 13 GPa to 30 GPa.

The present invention provides a structure of a battery module, comprising: a cell laminate comprising: a plurality of battery cells laminated in a widthwise direction; and a barrier member interposed therebetween; a housing comprising: a pack frame accommodating the cell laminate; and a cover covering an upper end of the pack frame; and a barrier receptor coupled to an inner surface of the cover the barrier receptor having a shape open in downward direction with an upper end of the barrier member inserted therein, wherein the barrier member and the barrier receptor are provided with overlapping sections of a predetermined length extending in upward direction and overlapping in widthwise direction, and the barrier member and the barrier receptor are slidable in upward direction while maintaining contact with each other.

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The present disclosure relates to a secondary battery that can be charged and discharged, and may include an electrode assembly; a pouch-type exterior material having an internal space that accommodates the electrode assembly and an exterior material opening that allows the internal space to communicate with the outside; and a cover member inserted into the exterior material opening, wherein the cover member may include a body portion blocking the exterior material opening; and a leg portion extending from the body portion toward the internal space.

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