LG Energy Solution Patente

A battery cell inspection device includes a frame, an assembly mounting member which is movably mounted on the frame and on which a cell tray assembly is mounted, an ascent/descent driver mounted on the frame and moving up/down the assembly mounting member, an inspection jig disposed above the assembly mounting member in the frame and contacting a battery cell to measure a voltage of the battery cell, and a stopping member disposed above the assembly mounting member and including at least two stopping surfaces formed at different heights. An ascent height of the assembly mounting member is adjusted through selective contact between a part of the assembly mounting member and the stopping surfaces.

A battery module of the present disclosure may include a cell stack composed of a plurality of battery cells that each has an electrode lead; and a cover frame covering the front or rear part of the cell stack, wherein the plurality of electrode leads may include a lead overlapping portion formed to overlap at least partially on the outside of the cover frame and configured to be welded, and wherein the cover frame may include a body portion having a slit through which the electrode lead passes; and a support portion that is disposed to be spaced apart from the lead overlapping portion, is positioned between the lead overlapping portion and the body portion, and assists in the mutual close contact and welding of the lead overlapping portions.

A battery module according to exemplary embodiments may include battery cells, a module frame, and a first thermal barrier, wherein the module frame may accommodate the battery cells, and the module frame includes a top plate including vent holes, and the first thermal barrier may be disposed between the battery cells and the top plate.

The present invention provides an ultrasonic welding horn for a secondary battery used in an ultrasonic welding apparatus for a secondary battery. The ultrasonic welding horn: is vertically arranged with a predetermined length, includes an upper end connected to an ultrasonic vibration unit of the ultrasonic welding apparatus, is configured to perform welding by applying ultrasonic waves while being inserted into a can of a secondary battery and pressing against an object to be welded, and includes a ring-shaped ring structure detachably coupled to an outer periphery of a lower end.

A battery active discharge device may include a capacitor arranged on a vehicle side and configured to maintain a link voltage in a smoothed state, a pre-charge resistor arranged on a battery side and configured to charge or discharge the capacitor arranged on the vehicle side, a main positive relay arranged on the battery side, and a pre-charge relay having a first end connected to a first end of the main positive relay and a second end connected to a first end of the pre-charge resistor.

According to some embodiments, a battery inspection device includes a photographing unit configured to photograph a feed state of a negative electrode being fed toward a winding core to form a jelly roll of a cylindrical battery cell and generate a negative electrode feed-state image and a processing unit configured to measure a first distance indicating the feed state of the negative electrode based on the negative electrode feed-state image, calculate a negative electrode feed amount index indicating a feed amount of the negative electrode based on the first distance, and diagnose a winding state of the jelly roll based on the negative electrode feed amount index.

A battery storage casing includes a lower surface part (100) configured to define a lower surface of the casing, in which a cooling flow path (110) is formed on the lower surface part and provides a path through which a cooling fluid flows, and in which one part of the cooling flow path and another part of the cooling flow path intersect each other when the lower surface part is viewed from a location spaced apart from the lower surface part in an upward/downward direction H.

The present disclosure provides a battery cell unit including: a plurality of battery cells; a battery cell unit frame that forms an accommodation space for the plurality of battery cells and seals the accommodated plurality of battery cells against the outside; and an insulating oil that is capable of cooling the plurality of battery cells and is hermetically injected into the accommodation space of the battery cell unit frame to immerse the plurality of battery cells, wherein the battery cell unit frame is provided with a cooling flow path penetrating therethrough through which coolant can flow in and out.

The present disclosure relates to an apparatus for manufacturing a pouch for a secondary battery for manufacturing a pouch for a secondary battery including a pouch body and a sealing portion, and the apparatus for manufacturing a pouch for a secondary battery may include a pressure portion provided to selectively press the sealing portion of the pouch for a secondary battery along a vertical direction so that the sealing portion is bent toward the vertical direction orthogonal to the horizontal direction, and selectively press the sealing portion along the horizontal direction so that the bent sealing portion moves in a direction approaching the pouch body; and an adhesive tape supply unit that supplies an adhesive tape to a target adhesive surface of the sealing portion facing the side surface of the pouch body, wherein the adhesive tape may be adhered between the target adhesive surface and the side surface of the pouch body as the sealing portion is pressed in the horizontal direction by the pressure portion, thereby obtaining the advantageous effects of simplifying the structure and provision process, and improving space utilization and design freedom.

Disclosed are a cylindrical battery cell machining apparatus including a compression unit configured to press an upper part of a cylindrical battery cell to reduce the outer diameter thereof and a fixing unit located under the compression unit, the fixing unit being configured to allow the compression unit to be mounted thereto, wherein the compression unit includes a plurality of separable units coupled to each other such that slits are formed therebetween, an elastic member is added to each of the slits, and the plurality of separable units is interconnected via the elastic members, and a cylindrical battery cell machining method using the same.

A battery unit of the present disclosure may include a cell assembly including a plurality of battery cells; a case accommodating the cell assembly; a busbar frame assembly including a first busbar frame covering one surface of the cell assembly, a second busbar frame covering the other surface of the cell assembly, and a top frame connecting the first busbar frame and the second busbar frame at the upper side of the cell assembly; a cover member covering the upper end of the cell assembly; and a block member positioned between the case and the cell assembly and partitioning a space between the cell assembly and the case.

The present disclosure relates to a secondary battery inspection apparatus, and more specifically, to a secondary battery inspection apparatus capable of performing an appearance inspection while reducing errors when photographing all the outer surfaces of a battery without the battery deviating from its correct position.

A system for managing battery performs bidirectional charge/discharge active cell balancing of a plurality of battery cells using a single converter, thereby reducing the number of components required for active cell balancing and achieving cost and size reduction of the system for managing battery.

A battery module according to an embodiment of the present disclosure may include:pouch cells arranged in a first direction, each of the pouch cells including an electrode lead protruding in a second direction perpendicular to the first direction;a module frame configured to accommodate the pouch cells and open in the second direction, the module frame including a top plate having first vent holes and a first non-perforated portion;a first vent guide structure disposed between the pouch cells and the top plate, the first vent guide structure including second vent holes and a second non-perforated portion, and configured to guide venting toward the plurality of first vent holes; anda bus bar frame coupled to the module frame in the second direction and including a second vent guide structure configured to guide venting toward the first vent holes.Accordingly, the stability of the battery module may be improved.

The present invention relates to an apparatus for manufacturing a pre-lithiated electrode including: a traveling unit along which an electrode having electrode active material layers on both surfaces of an electrode current collector layer travels; a lamination unit configured to laminate a transfer laminate including a lithium metal layer and a base layer such that the lithium metal layer comes into contact with each of the electrode active material layers, at a first side surface and a second side surface of the traveling unit; a first peeling unit including a first peeling roll configured to peel the base layer from the transfer laminate at the first side surface of the traveling unit; and a second peeling unit including a second peeling roll configured to peel the base layer from the transfer laminate at the second side surface of the traveling unit, wherein among points on the electrode having a shortest distance from a center of the first peeling roll to the electrode traveling along the first side surface of the traveling unit, an upstreammost point P, and among points on the electrode having a shortest distance from a center of the second peeling roll to the electrodes traveling along the second side surface of the traveling unit, a downstreammost point Q are different from each other, and the traveling unit at the point P and the traveling unit at the point Q are located on different straight lines.

The present disclosure provides a battery pack including: a battery unit including a plurality of battery cells stacked in one direction, side plates disposed at both ends in the stacking direction of the plurality of battery cells, and a band member connected to at least one of the mutual upper ends and mutual lower ends of the side plates; and a pack case forming an accommodation space in which at least one battery unit is mounted, wherein the pack case includes a pack case inlet and a pack case outlet through which insulating oil can flow in and out to the battery unit, and the plurality of battery cells is stacked in a direction crossing the inflow direction of the insulating oil.

The present disclosure relates to a secondary battery including an electrode assembly; an electrode tab electrically connected to the electrode assembly and bent to be in close contact with an end of the electrode assembly; a pouch provided to surround a perimeter of the electrode assembly; an electrode lead including a first lead portion electrically connected to the electrode tab and accommodated inside the pouch to be stacked on the electrode tab, and a second lead portion having one end connected to the first lead portion and the other end exposed to the outside of the pouch; and a protector provided to surround an edge of the first lead portion, thereby obtaining the advantageous effect of minimizing damage to a pouch and improving stability and reliability.

The present disclosure relates to a battery module and a battery pack including the same, and more particularly, to a battery module for preventing the spread of gases and/or flames to other battery cells when the gases and/or flames are produced from a specific battery cell and a battery pack including the same. The battery module according to the present disclosure includes a first cell unit, a second cell unit spaced apart from the first cell unit in a first direction, a first side beam covering an end of the first cell unit in a second direction perpendicular to the first direction, and a second side beam coupled to the first side beam, the second side beam covering an end of the second cell unit in the second direction, and at least a part of the first side beam and at least a part of the second side beam may overlap each other in the second direction.

A battery module according to an embodiment of the present disclosure may include: pouch cells arranged in a first direction, each of the pouch cells including an electrode lead protruding in a second direction perpendicular to the first direction; a module frame configured to accommodate the pouch cells and open in the second direction, the module frame including a top plate positioned above the pouch cells; a vent suppression structure between the pouch cells and the top plate; and a first end plate coupled to the module frame in the second direction and including first vent holes.

A charge/discharge noise characteristic enhancement circuit may include a register configured to detect an abnormal signal and output a first micro control unit (MCU) reset signal and a register signal, a first delay circuit configured to delay the first MCU reset signal output from the register and output a second MCU reset signal, an AND gate configured to receive the second MCU reset signal and the register signal and output a third MCU reset signal, a second delay circuit configured to delay the third MCU reset signal output from the AND gate and output a fourth MCU reset signal, and an MCU configured to perform a reset operation based on the first MCU reset signal or the fourth MCU reset signal.

The present disclosure relates to a pouch type secondary battery, and more specifically, to a pouch type secondary battery capable of easily determining whether an electrolyte is depleted from the outside without the need to disassemble a battery case.

Disclosed are a battery pack including a plurality of cylindrical battery cells, a metal plate configured to electrically connect the plurality of cylindrical battery cells to each other, a monopole antenna attached to the plurality of cylindrical battery cells, and an antenna module connected to the monopole antenna, and a battery pack inspection apparatus for inspecting the same.

Disclosed are a top cap welding apparatus for cylindrical battery cells, the top cap welding apparatus including a transfer unit configured to transfer a cylindrical battery case in which an electrode assembly having an outwardly exposed electrode tab is received, a pressing unit located in front of the battery case, the pressing unit being configured to press the battery case, a support unit located at the rear of the battery case, the support unit being configured to support the battery case, a top cap holder configured to locate a top cap at the rear of the electrode tab, a top cap support unit configured to support the rear of the top cap, and a welding unit configured to weld the electrode tab and the top cap to each other, wherein the welding unit includes a welding mask configured to bring the electrode tab into tight contact with the top cap and a debris removal unit configured to remove debris generated during welding by injecting gas and/or suctioning the debris, and a top cap welding method for cylindrical battery cells using the same.

Disclosed are a pouch battery cell analysis apparatus and a pouch battery cell analysis method using the same, and more particularly a pouch battery cell analysis apparatus including a measurement unit configured to measure the voltage value of a pouch battery cell, a controller configured to determine whether the pouch battery cell is defective based on the voltage value measured by the measurement unit, a cutting member configured to cut a pouch case of the pouch battery cell, a gripping member configured to grip the pouch case in tight contact with the pouch case, and an analysis unit located above the pouch battery cell, and a pouch battery cell analysis method using the same.

A battery assembly according to the present invention comprises: a busbar capable of conducting electricity; a busbar frame configured to support the busbar; an end plate configured to cover the busbar frame; a substrate including a substrate body and a substrate bending portion that is bent between the end plate and the busbar frame to contact the busbar from the substrate body; and a fuse located on the substrate bending portion to interrupt electricity flowing through the substrate, wherein the fuse faces the end plate, and the end plate includes a spaced portion formed at a position corresponding to the fuse and spaced apart from the fuse.

According to exemplary embodiments, a battery pack is provided. The battery pack may include: a base plate; a battery cell assembly on the base plate, wherein the battery cell assembly includes a cell stack including battery cells stacked in a first direction, and an end plate on a side surface of the cell stack in the first direction; and a cross beam on the base plate and extending in a second direction perpendicular to the first direction. The end plate may include a plurality of first pins on a surface facing the cross beam, and first spacers extending from each of the first pins in a third direction perpendicular to each of the first and second directions. The cross beam may include a plurality of first slots penetrating an outer wall facing the end plate, and first recesses extending from each of the first slots in the third direction.

Disclosed are a top cap welding apparatus for cylindrical battery cells, the top cap welding apparatus including a transfer unit configured to transfer a cylindrical battery case in which an electrode assembly having an outwardly exposed electrode tab is received, a pressing unit located in front of the battery case, the pressing unit being configured to press the battery case, a support unit located at the rear of the battery case, the support unit being configured to support the battery case, a top cap holder configured to locate a top cap at the rear of the electrode tab, a top cap support unit configured to support the rear of the top cap, and a welding unit configured to weld the electrode tab and the top cap to each other, wherein the welding unit includes a temperature adjustment unit configured to control the temperature of a welding mask configured to bring the electrode tab into tight contact with the top cap such that the temperature does not rise to a predetermined temperature or higher, and a top cap welding method for cylindrical battery cells using the same.

According to exemplary embodiments, a battery pack is provided. The battery pack may include: a pack housing including a bottom plate, side walls, and a lid plate; a plurality of battery cell assemblies on the bottom plate; and a first fire-resistant sheet between the plurality of battery cell assemblies and the lid plate. The first fire-resistant sheet may include a plurality of overlapping parts that are folded and overlapped.

A battery module according to an embodiment of the present invention includes: a battery cell stack in which a plurality of battery cells are stacked in one direction; and a module frame accommodating the battery cell stack and having an inner surface and an outer surface, wherein at least one venting part penetrating the inner surface and the outer surface is formed on one surface of the module frame, and a cover layer including a barrier layer and a refractory layer is positioned between one surface of the module frame where the venting part is formed and the battery cell stack.

Provided are a battery module configured to ensure structural stability even when a thermal event occurs, a battery pack, and a vehicle including the battery pack. A battery module includes a cell assembly including a plurality of battery cells, and a compression pad assembly located between the plurality of battery cells, the compression pad assembly including a heat blocking unit in which at least one hollow portion is formed.

Die coater system configured for coating a foil with an active material, comprises a die block assembly with at least one discharge port for dispensing an active material slurry onto the foil, wherein the discharge port defines a discharge direction and extends in a lateral direction, wherein the die coater system further includes at least one adjustment device coupled to a back side of the die block assembly opposite to the discharge port, wherein the adjustment device includes an actor configured to urge at least a section of the die block assembly forwards or backwards in the discharge direction.

An electrode assembly according to the present disclosure includes an electrode including an electrode body, a first electrode tab extending from the electrode body, and a second electrode tab extending from the same side as a side of the electrode body, from which the first electrode tab extends, the electrode being provided in plurality to be stacked; and an electrode lead electrically coupled to the electrode tabs, wherein the first electrode tabs and the second electrode tabs of the plurality of electrodes are bent and stacked in different directions, to form a first electrode tab stack and a second electrode tab stack, respectively, wherein the electrode lead includes a first electrode lead provided to be in contact with the first electrode tab stack and the second electrode tab stack; and a second electrode lead coupled to the first electrode lead, and wherein the second electrode lead includes a facing portion facing the first electrode lead; and an extension portion extending from the facing portion in a direction distant from the electrode.

Disclosed is a battery pack including one or more battery modules, a pack case body configured to receive the battery modules, a cover added so as to cover an open surface of the pack case body, and a sound absorbing material disposed on an outer surface of the cover, wherein a groove is formed in the outer surface of the cover, and at least a part of the sound absorbing material is inserted into the groove.

The present disclosure relates to a secondary battery transfer device, and more specifically, to a secondary battery transfer device that may efficiently merge batteries together even if the number of lines through which secondary batteries are transferred is reduced, and may prevent an increase in the defect rate of batteries or delays in the transfer of batteries.

A battery module according to one embodiment of the present invention includes a plurality of battery cells, a module housing configured to accommodate the battery cells, and a resin portion provided in an upper region of an internal space of the module housing, configured to surround an outer circumferential surface of the plurality of battery cells, and configured to induce gas discharged from the upper portion of the battery cells to be discharged to the outside of the module housing.

The present disclosure relates to an electrolyte injection device for injecting an electrolyte into a cylindrical battery case accommodating an electrode assembly. The device includes: a main body including an inlet formed at an upper part through which an electrolyte flows in, an outlet formed at a lower part through which the electrolyte is discharged, and an electrolyte flow path formed to communicate the inlet and the outlet; and a buffer cap coupled to the outlet, wherein the buffer cap includes an opening part formed to allow the electrolyte to pass therethrough and a buffer protrusion protruding toward the main body from a central position of the opening part to guide a discharge direction of the electrolyte.

A secondary battery according to the present disclosure includes a battery case; an electrode including an electrode body and an electrode tab bent and extending from the electrode body, as an electrode accommodated in the battery case; a first electrode lead coupled to the electrode tab; a second electrode lead coupled to the first electrode lead at the opposite side of a side at which the first electrode lead faces the electrode tab, the second electrode tab extending to an outside of the battery case, and a coating member covering at least a portion of an end portion of the second electrode lead.

A secondary battery according to the present disclosure is configured to bend an electrode tab extending from an electrode body of an electrode, the electrode tab being provided in plurality, and includes a first roller configured to be located one side of the electrode and be rotated and moved and a second roller configured to be located at the opposite side of the one side of the electrode and be rotated and moved, wherein the first roller includes a first roller body configured to be in contact with the electrode body and a first pressing portion extending in a radial direction of the first roller body to press the electrode tab, wherein the second roller includes a second roller body corresponding to the first roller body and a second pressing portion corresponding to the first pressing portion, and wherein the first pressing portion and the second pressing portion are configured to alternately bend the plurality of electrode tabs in different directions.

The technical spirit of the present disclosure provides a folding device including: a position detector that detects a position of a battery cell and determines a position correction value based on the detected position of the battery cell and a reference position; a folding part configured to fold an edge part of the battery cell; and a moving stage configured to move the folding part based on the position correction value provided by the position detector.

A battery inspection apparatus according to the present disclosure includes an electromagnetic wave emitter device configured to emit electromagnetic waves toward a secondary battery, an electromagnetic wave detector device configured to detect the electromagnetic waves passing through the secondary battery, a rotational force transmitter configured to be coupled to the secondary battery, and a main movement device configured to apply pressure to the rotational force transmitter to rotate and move the secondary battery with respect to a battery movement direction while the electromagnetic wave detector device detects the electromagnetic waves passing through the secondary battery.