LG Energy Solution Patente

Disclosed is a height adjustment jig for cylindrical battery cells, the height adjustment jig including a support unit having a cylindrical mounting portion formed in the center thereof and a pressing unit configured to press a cylindrical battery cell received in the mounting portion, wherein the support unit includes a lower portion of the support unit having an inner diameter corresponding to the outer diameter of the cylindrical battery cell, an upper portion of the support unit having an inner diameter greater than the inner diameter of the lower portion of the support unit, and a stepped portion located between the lower portion of the support unit and the upper portion of the support unit, and the support unit is configured in a structure in which a plurality of units, such as four or more even-numbered units, is coupled to each other.

Disclosed is a height adjustment jig for cylindrical battery cells, the height adjustment jig including a support unit having a cylindrical mounting portion formed in the center thereof and a pressing unit configured to press a cylindrical battery cell received in the mounting portion, wherein the support unit includes a lower portion of the support unit having an inner diameter corresponding to the outer diameter of the cylindrical battery cell, an upper portion of the support unit having an inner diameter greater than the inner diameter of the lower portion of the support unit, and a stepped portion located between the lower portion of the support unit and the upper portion of the support unit, and the support unit is configured in a structure in which a plurality of units, such as three or more odd-numbered units, is coupled to each other.

A battery pack according to an embodiment of the disclosure includes a battery cell assembly and a pack case accommodating the battery cell assembly. The pack case is made by coupling a plurality of parts with a cooling flow path formed inside and includes a bottom cover facing a lower surface of the battery cell assembly. (Representative figure: FIG. 4)

The inventive concept of the present disclosure provides a learning system for secondary battery manufacturing, including: a simulation device configured to construct a virtual factory in which a plurality of manufacturing equipment configured to perform secondary battery manufacturing processes are disposed, and to output the virtual factory to a display device; and an input device configured to transmit a user input signal generated based on an input of a user to the simulation device, wherein the simulation device is configured to change a position of the virtual factory displayed on the display device in accordance with the user input signal, and to output, to the display device, content associated with a manufacturing equipment selected by the user input signal from among the plurality of manufacturing equipment.

A battery cell according to an aspect of the present disclosure includes a battery case, an electrode assembly accommodated in the battery case, and an insulator interposed between the electrode assembly and one bottom surface of the battery case, the insulator having a shape in which the area in contact with the electrode assembly and the bottom surface of the battery case is smaller than the area in contact with the electrode assembly.

The present disclosure relates to a battery module and battery pack capable of preventing tab disconnection due to swelling of a battery cell, and a vehicle including the same. A battery module and battery pack including a cell assembly configured such that a plurality of battery cells including electrode leads are stacked, wherein the cell assembly includes a plurality of bent portions formed to be bent at predetermined radii on at least one of a plurality of electrode leads arranged along a stacking direction of the plurality of battery cells, and a vehicle including the same are provided.

Disclosed are a pouch-shaped secondary battery degassing apparatus for removing gas from a pouch-shaped secondary battery including a first pocket portion configured to receive an electrode assembly and a second pocket portion configured to capture gas, the pouch-shaped secondary battery degassing apparatus including a first jig unit located at one surface of the second pocket portion, the first jig unit being configured to take in gas captured in the second pocket portion, and a second jig unit located at the other surface of the second pocket portion, the second jig unit being configured to take in the gas captured in the second pocket portion, wherein the first jig unit includes a first support plate, a first intake portion, and a first suction portion, and the first support plate is formed such that a region thereof where the first intake portion is located protrudes farther toward the one surface of the second pocket portion than a region thereof where the first suction portion is located, and a pouch-shaped secondary battery degassing method using the same.

A device for automatically coupling high-voltage (HV) and low-voltage (LV) connectors of a battery pack is provided. A connector coupling device for the battery pack includes a cylinder configured to move a connector toward a connector housing provided on the battery pack, an XY stage connected to the cylinder and configured to insert the connector into the connector housing, and a correction unit connected to the XY stage and configured to correct a position of the connector inserted into the connector housing.

According to exemplary embodiments, a battery pack is provided. The battery pack may include a pack housing including a bottom portion; first and second battery cell assemblies on the bottom portion; and a flame cover on the first and second battery cell assemblies. Each of the first and second battery cell assemblies may include a plurality of battery cells arranged in a first direction parallel to the bottom portion. The flame cover may include a plate and a fire-resistant film on the plate. The plate may include a first plate portion overlapping the first battery cell assembly in the vertical direction and including a plurality of first venting holes; a second plate portion overlapping the second battery cell assembly in the vertical direction and including a plurality of second venting holes; and bridges connecting the first plate portion and the second plate portion. The fire-resistant film may overlap each of the plurality of first venting holes and the plurality of second venting holes in the vertical direction.

The technical concept of the present disclosure provides a battery pack including: a pack housing; a cell assembly including a frame provided on the pack housing and battery cells accommodated in the frame; a mounting block provided between the frame and the pack housing; and a first bolt fastening the frame to the mounting block and spaced apart from the pack housing, wherein the mounting block includes an insulation layer provided at a portion in contact with the frame and a portion in contact with the pack housing.

The battery module includes a plurality of battery cells, a module frame that accommodates the plurality of battery cells, end plates positioned on a front side and a rear side of the plurality of battery cells, respectively, and a cover frame that covers a top surface and both side surfaces of the module frame. Two or more folding portions are formed on each edge of the cover frame.

An object of the present disclosure is to provide an Ultrasonic welding apparatus, ultrasonic welding method, a battery cell manufactured thereby, a battery pack, and an automobile including the same, which are capable of ensuring sufficient welding strength between a current collector plate and a terminal (rivet) of the battery cell. An ultrasonic welding device according to an embodiment of the present disclosure includes a welding horn having a plurality of protrusions at the end of a welding tip to press at least one member to be welded among a current collector plate and a rivet into a contact surface having a protruding shape. A plurality of protrusions are formed by protruding from the end face in a direction toward the member to be welded. Among the plurality of protrusions, the first protrusions arranged in the central area of the knurled portion are formed in a hexagonal cross-sectional shape, and the first protrusions have a transverse cross-sectional area that decreases as they move toward the member to be welded.

A battery module including a module case, the module case being configured to accommodate a battery cell stack, an end plate located on a side of the module case, an insulating cover located on an inner side of the end plate, and a plurality of fastening portions, each fastening portion including a fastening projection protruding from the insulating cover and a projection fastening hole located in the end plate, the fastening projection being inserted and fastened to the projection fastening hole, the fastening portions being configured to fasten the end plate and the insulating cover, wherein the fastening portions are arranged at positions asymmetrical to each other in a left-right direction.

According to exemplary embodiments, a battery pack is provided. The battery pack may include a pack housing including a base plate, a center beam extending in a first direction and on the base plate, and a cross beam on the base plate crossing the center beam and extending in a second direction perpendicular to the first direction; a battery cell assembly on the base plate; and a first adhesive layer between the cross beam and the base plate.

The present disclosure relates to a battery pack capable of preventing tab disconnection due to swelling of a battery cell, and a vehicle including the same, and provides a battery pack including a cell assembly including a plurality of battery cells arranged at least in a row, and a busbar assembly electrically connected to the cell assembly, wherein the busbar assembly may include a busbar frame having a predetermined length and provided along an arrangement direction of the plurality of battery cells, and at least one busbar connected to the electrode leads of the plurality of battery cells and mounted to the busbar frame so as to be movable along a longitudinal direction of the busbar frame, and a vehicle including the same.

Disclosed is a battery module including a plurality of pouch-shaped battery cells, each of the pouch-shaped battery cells including an electrode assembly, a receiving portion configured to receive the electrode assembly, a terrace portion forming an edge of the receiving portion, and a sealed portion located outside the terrace portion, wherein a guide portion having a predetermined shape is interposed between the pouch-shaped battery cells, and one side of the guide portion is located so as to extend to the vicinity of the sealed portion.

A battery module according to an exemplary embodiment of the present disclosure includes a plurality of battery cell assemblies, each including one or more battery cells and a cell cover configured to enclose five surfaces of the one or more battery cells excluding an upper surface, and a busbar frame assembly coupled to at least one surface of the plurality of battery cell assemblies.

Disclosed are a top cap welding apparatus for cylindrical battery cells, the top cap welding apparatus including a transfer unit configured to move a cylindrical battery case in which an electrode assembly having an outwardly exposed electrode tab is received, a pressing unit disposed in front of the battery case, the pressing unit being configured to press the battery case, a support unit disposed 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 while pressing the electrode tab against the top cap at a predetermined pressure, and a top cap welding method for cylindrical battery cells using the same.

Disclosed is a sealing tape attachment apparatus including a first supply unit configured to supply a jelly-roll type assembly, a second supply unit configured to supply a sealing tape to be attached to a winding end of the jelly-roll type assembly, a cutting unit configured to cut the sealing tape, a suction unit configured to suction the sealing tape supplied from the second supply unit, and a pressing unit configured to attach the sealing tape to the electrode assembly, wherein the second supply unit is configured such that the length of the sealing tape supplied varies according to the diameter of the jelly-roll type assembly.

A secondary battery according to the present disclosure includes a first electrode, a second electrode, the first electrode and the second electrode being stacked in an alternating manner along a stack direction, and a separator configured to separate the first electrode from the second electrode, wherein the separator includes a first separator portion located between the first electrode and the second electrode, a second separator portion located opposite the first separator portion with respect to the first electrode, and a connection portion connecting the first separator portion to the second separator portion and covering an end portion of the first electrode, and wherein the connection portion has a gas vent hole having a larger length in a length direction parallel to an extension direction of the end portion of the first electrode than a width, the gas vent hole having a rounded corner.

The present disclosure relates to a pouch cell assembly including: a battery cell including an electrode assembly, an electrode lead electrically connected to the electrode assembly, and a battery case that covers the electrode assembly with the electrode lead extending to the outside and has sealed edges; and a clip-type clamp unit fitted to the battery case and fixed to the battery cell, wherein the clamp unit presses the battery case corresponding to the portion where the electrode lead extends.

Disclosed are a top cap welding apparatus for cylindrical battery cells, the top cap welding apparatus including a transfer unit configured to move a cylindrical battery case in which an electrode assembly having an outwardly exposed electrode tab is received, a pressing unit disposed in front of the battery case, the pressing unit being configured to press the battery case, a support unit disposed 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 pressing unit is configured to press the battery case while controlling the angle between the electrode tab and the top cap or the distance between the electrode tab and the top cap such that the electrode tab corresponds in position to the top cap, and a top cap welding method for cylindrical battery cells using the same.

Disclosed are a swage apparatus, which is capable of preventing the occurrence of a scratch defect caused by excessive pressure applied to an opening portion of a battery housing during a swage process, and a method of determining an error in the swage process. A swage apparatus according to an embodiment of the present disclosure performs a swage process of compressing an opening portion of a cylindrical battery housing in which an electrode assembly is accommodated, and the swage apparatus includes a swage module including a housing and a pressing operation part and a pressing part provided in the housing, the swage module being configured to compress the opening portion of the battery housing by operating the pressing operation part between a pressure-releasing position and a pressing position in an operation direction parallel to a central axis of the battery housing, and operating the pressing part by the pressing operation part, a load measurement part installed in the housing and configured to measure a load applied in the operation direction by the pressing operation part at the pressing position, and a swage process error determination part configured to determine a swage process error on the basis of a load measurement value applied in the operation direction by the pressing operation part.

Disclosed is a battery pack. The battery pack includes a bottom cover assembly; a battery module installed on an upper surface of the bottom cover assembly; a top cover assembly located on the battery module and having a flow path formed therein and an injection hole configured to communicate with the flow path and face the battery module; a hole cover coupled to a lower surface of the top cover assembly and configured to seal the injection hole; and a support fixed between the hole cover and the battery module and configured to support the hole cover.

An isotope battery unit is provided, which includes a first isotope battery layer including two or more first radiation sources extending in a first direction and a second isotope battery layer including two or more second radiation sources extending in a second direction different from the first direction, wherein the first isotope battery layer includes: the first radiation sources; a first conductivity-type semiconductor layer partially surrounding the first radiation sources such that one side surface of the first radiation sources is exposed; and a second conductivity-type semiconductor layer provided spaced apart from the first radiation sources with the first conductivity-type semiconductor layer interposed therebetween, and having first trenches on a surface spaced apart from the first conductivity-type semiconductor layer, wherein the first radiation sources and the second radiation sources cross and contact each other.

The present application relates to a negative electrode active material, a method for manufacturing a negative electrode active material, a negative electrode composition, a negative electrode for a lithium secondary battery including the same, and a lithium secondary battery including a negative electrode.

A cylindrical battery cell includes a battery case, and an electrode assembly including a first electrode and accommodated in the battery case. The first electrode includes a composite current collector including a positive electrode current collector and a negative electrode current collector facing the positive electrode current collector, a positive electrode active material layer formed on one surface of the positive electrode current collector to make up a positive electrode, and a negative electrode active material layer formed on one surface of the negative electrode current collector to make up a negative electrode.

The present disclosure provides a repeating frame having a high voltage connection structure and accommodating battery cells. The repeating frame includes: a plurality of the battery cells connected to each other in series, in which a positive electrode lead protrudes on one side and a negative electrode lead protrudes on the other side; and a high voltage connector having a pair of busbars arranged between the plurality of battery cells. Each of the pair of busbars is electrically connected to an electrode lead located between the plurality of battery cells.

The present application relates to a negative electrode for a lithium secondary battery, a method for manufacturing a negative electrode for a lithium secondary battery, and a lithium secondary battery including a negative electrode.

A battery cell according to the present invention includes: a cell case accommodating an electrode assembly therein; and a safety vent provided in a venting path of the cell case and including a first vent part configured to be deformed when a pressure inside the cell case reaches a venting pressure, and a second vent part having a lower melting point than the first vent part.

The present disclosure provides a battery module including a cell stack in which a plurality of cells are stacked, and a module case that accommodates the cell stack. In the battery module, the module case includes a case body having an opening portion, and an end cover assembly coupled to the opening portion of the case body, and the end cover assembly includes a mounting structure for fixing the battery module to a pack case, and a voltage and current sensing structure including a sensing line directly connected to the plurality of cells.

Provided is a battery cell activation process simulation system capable of efficiently train new trainees on actual activation process equipment without affecting the operation of actual activation process equipment. The system includes: a server storing basic information and training information about a training equipment as a training target battery cell activation equipment, and work history of a trainee participating in the training; a terminal providing the training information to the trainee participating in the training; an input interface provided at the terminal for inputting information of the trainee participating in the training; and a training contents selection logic constructing a training curriculum to be provided to the terminal based on an inputted information of the trainee.

A battery electrode coating device includes a coating die, a spacer shim mounted on the coating die, and a bolt-type fixing member that fixes the spacer shim to the coating die such that a fastening portion passes through the spacer shim and fastens to the coating die. A portion of the fastening portion positioned within a through hole of the spacer shim includes at least two steps having different diameters.

A cell stack assembly according to one embodiment of the present invention comprises: a cell stack comprising a plurality of battery cells; a first side beam provided on one side of the cell stack and having a first surface pressure absorbing portion configured therein to absorb surface pressure; and a second side beam provided on another side of the cell stack and having a second surface pressure absorbing portion configured thereinto absorb surface pressure. The first surface pressure absorbing portion and the second surface pressure absorbing portion are hollow structures, which absorb and disperse surface pressure due to volume expansion of the battery cells.

A system and method for managing battery may notify a vehicle user of a dangerous situation in advance by detecting whether simultaneous fusion of a positive relay and a negative relay has occurred while communication with the battery is interrupted.

The present disclosure relates to a cell assembly including: a cell block including a plurality of battery cells with electrode leads protruding therefrom; a busbar frame including a busbar electrically connected to the electrode leads and coupled with the cell block; and at least one heat dissipation unit provided between the cell block and the busbar frame and including heat dissipation pins.

According to exemplary embodiments, a battery pack is provided. The battery pack may include: a plurality of battery cells arranged in a first direction inside a pack housing; a plurality of separators interposed between the plurality of battery cells and having a height greater than the height of each of the plurality of battery cells; and an upper cover disposed on top of the plurality of battery cells and the plurality of separators and including a base and a plurality of accommodating parts protruding from the base to accommodate each of the plurality of separators. The upper cover may include: a thermoplastic case; and a fire extinguishing agent within the thermoplastic case.

According to an embodiment disclosed in this document, there is provided a battery diagnosis device including an interface configured to acquire a capacity profile representing a voltage with respect to a capacity of a battery cell including an electrode based on a lithium iron phosphate (LFP) material and at least one processor, in which the at least one processor is configured to acquire a first differential capacity profile representing a capacity change of the battery cell with respect to a voltage change of the battery cell, divide an entire voltage range included in the first differential capacity profile into one or more voltage ranges, and identify positive electrode degradation of the battery cell based on a first voltage range among the one or more voltage ranges.

A hopper includes a hopper body portion including an electrolyte inlet formed at one end portion, an electrolyte injection port formed at the other end portion, and a hollow connecting the electrolyte inlet and the electrolyte injection port and a buffer portion formed in a center of the electrolyte injection port of the hopper body portion. (Representative figure: 2)

According to exemplary embodiments, a method for generating a recipe for MSCC (Multi-Step Constant Current) charging is provided. The method includes: charging a modeling cell to collect charging data of the modeling cell; deriving a current-capacitance model based on the charging data; and generating a recipe for MSCC (Multi-Step Constant Current) charging based on the current-capacitance model.