LG Energy Solution Patente

In one aspect, a computer-implemented method may include receiving, at edge processing devices, measurements from sensors associated with a battery pack. The computer-implemented method may include processing, at the edge processing devices, the measurements using a data profiler to generate data profiles including e voltage values, transforming, at the edge processing devices, the voltage values to generate transformed voltage values, determining, at the edge processing devices using the voltage values and the transformed voltage values, features, and determining, using trained edge computer-implemented models, a lithium plating occurrence prediction of the battery pack. The computer-implemented method may include modifying, using the lithium plating occurrence prediction, operation of the battery pack.

Disclosed is an apparatus, a battery manufacturing system, a battery manufacturing method and a battery product. The apparatus comprises a receptacle configured to receive a battery material and a gas withdrawal system configured to withdraw a gas from the battery material.

Disclosed herein is an isotope battery (1, 1a, 1b, 1c, 1d) and its fabrication method. The isotope battery (1, 1a, 1b, 1c, 1d) comprises a first conductivity type semiconductor layer (110a), a radiation source (130) provided on a first side surface of the first conductivity type semiconductor layer (110a) and having at least partially a droplet shape, and a second conductivity type semiconductor layer (120a) facing the first side surface of the first conductivity type semiconductor layer (110a) with the radiation source (130) in-between. The isotope battery (1, 1a, 1b, 1c, 1d) of the present disclosure and its fabrication method may be mass-produced by a simple process without wasting expensive materials.

The present invention relates to a method of preparing a positive electrode which includes forming a solid electrolyte by mixing a lithium salt and a polymer for a solid electrolyte in a dry atmosphere, forming a dry mixture by stirring after adding a conductive agent and a positive electrode active material to the solid electrolyte in a dry atmosphere, and pressing after coating a current collector with the dry mixture.

The present disclosure relates to a battery cell and a manufacturing method thereof. The battery cell according to one embodiment of the present disclosure includes an electrode assembly including a cathode, an anode and a separator; and a battery case including a sealing portion that houses the electrode assembly and seals an outer periphery of the electrode assembly, wherein the sealing portion includes a first area, and a second area excluding the first area, and wherein the first area is an area where the crystallinity of the battery case is higher than that of the second area.

A battery control apparatus and a battery control method are disclosed. The battery control apparatus according to an embodiment of the present disclosure includes a measuring unit for measuring a voltage of a battery and outputting a voltage measurement value representing the measured voltage, a memory for storing a multi-stage charging protocol data including a first current rate, a second current rate used in another constant current charging procedure following a constant current charging procedure using the first current rate, and a first criterion SOC associated with the first current rate, and a processor for identifying a SOC of the battery based on the voltage measurement value. The processor performs a temporary discharging procedure, when the SOC of the battery reaches the first criterion SOC while the constant current charging procedure using the first current rate is in progress, determines an adjusted second current rate different from the second current rate, based on discharging information of the temporary discharging procedure, and performs a constant current charging procedure using the adjusted second current rate, after the temporary discharging procedure is finished.

A positive electrode active material includes a lithium nickel-based oxide having the content of nickel (Ni) ranging from about 50 mol% to 70 mol% among total transition metals, and a coating layer formed on a surface of the lithium nickel-based oxide and including cobalt (Co) and lithium (Li). The coating layer has a form including both dot-shaped and film-shaped phases, and the weight ratio of lithium (Li) to cobalt (Co) in the positive electrode active material ranges from about 5 to 20.

A secondary battery inspection apparatus according to an embodiment of the present disclosure for solving the above problems includes a plurality of first mirrors formed radially to be spaced apart from a central axis of a body by a first radius; a plurality of second mirrors formed radially to be spaced apart from the central axis by a second radius smaller than the first radius; a plurality of prism mirrors disposed on the inner side of the plurality of first mirrors and the plurality of second mirrors in a direction of facing the plurality of first mirrors and the plurality of second mirrors, respectively, and formed radially to be spaced apart from the central axis by a third radius smaller than the second radius; and a light receiving unit that receives light reflected through the prism mirror.

A battery cell of the present invention includes a wound electrode stack, wherein the electrode stack includes a plurality of positive electrodes and a plurality of negative electrodes, and for at least two of the electrodes, the winding center of the electrode with a lower active material loading amount is located inward of the winding center of the electrode with a higher active material loading amount.

The present invention relates to a method for manufacturing a pre-lithiated negative electrode capable of suppressing formation of by-products during a pre-lithiation process, the method including the steps of preparing a negative electrode including a negative electrode active material layer having a moisture content of 800 ppm or more and provided on at least one surface of a negative electrode current collector layer; and bringing a transfer stack including a lithium metal layer and a base layer into contact with one surface of the negative electrode active material layer, with the lithium metal layer facing the one surface, and also relates to a lithium secondary battery including a pre-lithiated negative electrode manufactured therefrom.

According to some embodiments, a battery management device includes: an interface configured to obtain an open- circuit voltage (OCV) value of each of battery cells of a battery; and a controller configured to calculate an OCV difference value representing a change amount of the OCV value of each battery cell during a reference period, to set a classification reference value based on a distribution of the OCV difference values of the battery cells, and to classify states of the battery cells based on the classification reference value.

A battery diagnosis apparatus according to the present disclosure is directed to providing a battery diagnosis apparatus, a battery pack, an electric vehicle and a battery diagnosis method for diagnosing anomalies in a single battery cell or each of a plurality of battery cells connected in series using time-dependent changes in cell voltage of each battery cell without a process of comparing the cell voltage of each battery cell with the cell voltage of other battery cell(s).

Disclosed is a battery cell having an electrode tab with an enhanced safety, and a battery module, a battery pack and a vehicle including the same. The battery cell includes an electrode assembly including a cell body and an electrode tab provided to at least one of both sides of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead drawn out of the cell case by a predetermined length and connected to the electrode assembly through the electrode tab, and a tab protection module accommodated in the cell case and configured to cover at least a part of the electrode tab.

Disclosed is an electrode assembly, a battery, a battery pack and a vehicle. In the electrode assembly, the first uncoated portion provided at a long side end of a first electrode includes a segment region divided into a plurality of independently bendable segments by a plurality of cut grooves provided along a winding direction. The segment region includes a plurality of segment groups disposed with a group separation pitch along the winding direction. The plurality of segment groups constitute at least one segment alignment on one side of the electrode assembly. At least some of central points of winding turn arcs where the p number of segment groups are located are not located on a predetermined alignment line extending in the radial direction from the center of the core.

A battery cell tracking method includes acquiring an identification (ID) of a target semifinished cell on a process line, acquiring process data corresponding to the target semifinished cell, and mapping the ID and the process data.

Provided is a method of tracking a cell, the method including obtaining (P110), in a first sub-process included in a secondary battery manufacturing process, an electrode identifier (ID) identifying to a unit electrode, obtaining (P120), in a second sub-process included in the secondary battery manufacturing process, a cell ID for identifying to a semi-finished cell including the unit electrode, and matching (P130) the electrode ID and the cell ID.

A cell tracking method executed by a cell tracking system including a sensor subsystem (110,130) and a signal processing subsystem, the method comprising:detecting, by the sensor subsystem (110), a semifinished cell (306) on a process line (300);generating, by the signal processing subsystem, a virtual identification, ID, for the detected semifinished cell (306) upon detection of the semifinished cell (306);acquiring a cell ID of the semifinished cell (306) by detecting, by the sensor subsystem (130), a code object formed on the semifinished cell (306); andmatching, by means of the signal processing subsystem, the virtual ID and the cell ID.

The invention relates to a battery manufacturing system and a corresponding method for manufacturing batteries, the manufacturing system comprising a cylindrical roller configured to apply a roll pressure onto a battery cell while rolling over the battery cell; and a protrusion protruding from a lateral surface of the cylindrical roller in a radial direction of the cylindrical roller; a pressure measurement device configured to measure a measured pressure applied and/or received by the cylindrical roller while rolling over the battery cell; and a control unit configured to adjust a position of the cylindrical roller as a function of the measured pressure.

The present disclosure relates to an electrode assembly including electrodes and separators, and an apparatus for manufacturing such an electrode assembly. An electrode assembly according to an embodiment of the present disclosure may include a first separator; a first electrode having one surface in contact with the first separator; a second separator having one surface in contact with the other surface of the first electrode; a second electrode having a different polarity from the first electrode and having one surface in contact with the other surface of the second separator; and a plurality of attachment tapes attached to the first separator, the first electrode, the second separator, and the second electrode to combine them together, wherein the first and second separators may have wider widths than the first and second electrodes, wherein widthwise edges of the first and second separators may include adhesive portions that are bonded to each other and non-adhesive portions that are not bonded to each other, and wherein the non-adhesive portions may not overlap the plurality of attachment tapes.

A battery cell according to an embodiment of the present invention may include: an electrode assembly in which a positive electrode and a negative electrode are alternatingly interposed with a separator therebetween; and a pouch-type exterior including an accommodation portion that is recess-formed to accommodate the electrode assembly. The accommodation portion may include a center region; and a pair of end regions located on opposite sides of the center region, having a depth dimension smaller than a depth dimension of the center region, and being asymmetric to each other.

Disclosed is a battery module manufacturing method including (S1) a step of receiving a cell assembly including a plurality of secondary batteries in a module frame, (S2) a step of locating the module frame at a cover frame seated on a folding jig, and (S3) a step of folding the cover frame such that the cover frame wraps around a part of an outer surface of the module frame through the folding jig, wherein, in step (S2), a first protrusion and a second protrusion provided on edges of both sides of the folding jig are inserted into a first hole and a second hole formed in edges of both sides of the cover frame, respectively.

The present disclosure relates to a battery cell gripper gripping a cylindrical battery cell and a jig device including the same, and the battery cell gripper according to an embodiment of the present disclosure includes a holder clamping a side surface of the cylindrical battery cell and a first direction transfer unit moving the holder in a first direction to connect bottom surfaces of both sides of the cylindrical battery cell (Representative figure: 2)

Disclosed are a battery case shaping apparatus including a punch configured to shape a battery case, a die plate unit having a shaping hole configured to allow a part of the punch to be inserted thereinto, and an angle adjustment unit configured to adjust an inclination angle of the die plate unit, and a battery case shaping method using the same.

The present invention relates to a lithium secondary battery including a pre-lithiated negative electrode and a positive electrode, in which a charge capacity N/P ratio (%) expressed by Formula 1 satisfies a range of 108% or more and 123% or less, thereby securing life performance, and to a battery module and a battery pack including the same.

A battery diagnostic device according to an embodiment of the present disclosure may include a memory storing at least one instruction and at least one processor executing the at least one instruction, and the at least one processor may identify an individual vector representing a voltage of any one battery cell included in a battery unit at a specific point in time and a voltage change amount over a predetermined time interval after the specific point in time, identify, based on the individual vector, a specified number of reference vectors at each of a plurality of past points in time before the specific point in time, identify a first distribution characteristic among voltages of unit battery cells included in the battery unit, corresponding to the individual vector, and second distribution characteristics among voltages of the unit battery cells, corresponding to respective reference vectors, and set a diagnostic criterion for diagnosing the one battery cell based on the first distribution characteristic and the second distribution characteristics.

A battery pack according to one embodiment of the present invention comprises: a plurality of battery modules; and a heat diffusion prevention unit provided between adjacent battery modules, wherein the heat diffusion prevention unit maintains a spacing between the battery modules, blocks heat transfer, and provides a discharge path such that gas generated during thermal runaway of any one of the battery modules can be discharged upward.

A heating assembly includes a base member, a heat generating member provided on one or both sides of the base member, and a heat transfer member covering the heat generating member and contacting a battery cell to transfer heat to the battery cell.

The present disclosure relates to a grip device. The grip device according to an aspect of the present disclosure is capable of picking up or placing a cylindrical secondary battery, comprising a gripper comprising a pad and a frame supporting the pad; and an actuator configured to move the gripper in one direction, wherein the pad comprises a pad part comprising a grip surface capable of contacting the outer circumferential part of the cylindrical secondary battery and a coupling part provided on one side of the pad part and coupled to the frame in a shape fitting manner.

The present disclosure relates to a welder for welding an electrode tab of a secondary battery, and the welder may include an anvil on which the electrode tab is mounted, and a horn configured to move from an opposite direction to the anvil with the electrode tab positioned therebetween to weld the electrode tab. The horn may include a body portion including a first contact surface that contacts the electrode tab, and an expansion portion detachably coupled to the body portion, the expansion portion including a second contact surface that extends from the first contact surface and contacts the electrode tab.

The present disclosure relates to a tape supply unit, an apparatus for manufacturing a pouch for a secondary battery using the same and a method for manufacturing a pouch for a secondary battery using the same, and more particularly, to a tape supply unit for simplifying the structure and manufacturing process and improving process efficiency and productivity, an apparatus for manufacturing a pouch for a secondary battery using the same and a method for manufacturing a pouch for a secondary battery using the same. The apparatus for manufacturing the pouch for the secondary battery according to the present disclosure is configured to manufacture the pouch for the secondary battery including a pouch body accommodating an electrode assembly and a sealing portion disposed at the pouch body, and includes a support unit configured to support the sealing portion at a side, and a tape supply unit configured to supply an adhesive tape to a target adhesive surface of the sealing portion, wherein the tape supply unit includes a supply roll configured to supply a tape feed including the adhesive tape and a release sheet to which the adhesive tape is attached, and a mover configured to apply pressure to the release sheet to maintain tension of the tape feed, and move toward the support unit to attach the adhesive tape to the target adhesive surface.

According to exemplary embodiments of the present disclosure, a battery module is provided. The battery module includes: a plurality of battery cells; a module housing accommodating the plurality of battery cells; a first fire-resistant layer wrapping the plurality of battery cells such that a lower surface of the plurality of battery cells is open, and having a plurality of vent holes at an upper portion; a thermal insulation pad disposed on the first fire-resistant layer and having a plurality of slots at positions corresponding to the plurality of vent holes; a second fire-resistant layer positioned on the thermal insulation pad and covering the plurality of slots; an upper plate having a plurality of openings at positions corresponding to the plurality of slots and disposed on the second fire-resistant layer; and a flame barrier cover having a plurality of other openings at positions corresponding to the plurality of openings and installed on the upper plate.

Disclosed are a pouch-shaped secondary battery pressing apparatus including a pressing plate configured to press a pouch-shaped secondary battery, a support plate located in front of the pressing plate, and a driving unit configured to drive the pressing plate forward and backward, wherein the pressing plate includes a first pressing plate configured to press a central part of the pouch-shaped secondary battery and a second pressing plate disposed on each of both sides of the first pressing plate, the second pressing plate being configured to press an edge of the pouch-shaped secondary battery, and a pouch-shaped secondary battery pressing method using the same.

A battery module of the present disclosure may include a first battery cell stack including a stack of a plurality of first battery cells; a second battery cell stack including a stack of a plurality of second battery cells, the first battery cell stack and the second battery cell stack being arranged along a direction; a lower frame accommodating the first battery cell stack and the second battery cell stack, the lower frame having an open top; and an upper frame covering the first battery cell stack and the second battery cell stack, the upper frame being connected to the lower frame. The upper frame may have a plurality of slits that penetrate the upper frame completely, and a portion of the upper frame adjacent to the plurality of slits may rupture in response to thermal energy being concentrated at or above a predetermined value.

According to exemplary embodiments, a battery pack is provided. The battery pack may include: a bottom plate; a battery cell assembly on the bottom plate including a plurality of battery cells arranged in a first direction; a cover on the battery cell assembly; a venting guide structure including a base sheet on the cover and a venting sheet on the base sheet; and a lid plate on the venting guide structure. The venting guide structure may include: a first venting passage between the base sheet and the venting sheet; and a second venting passage between the venting sheet and the lid plate. The first venting passage and the second venting passage may be separated in the first direction.

According to exemplary embodiments of the present disclosure, there is provided a battery system. The battery system includes: a battery pack having a cooling flow path at an upper part and a venting passage at a lower part; and a battery pack stack in which a plurality of the battery packs are stacked vertically. Such a battery system can efficiently cool and then discharge high-temperature flammable gas, thereby preventing thermal runaway and thermal propagation between battery modules or between battery packs.

Disclosed herein is a battery manufacturing system comprising at least one intermediate conduit or intermediate container configured to receive a battery material mixture from a reactor configured for making the battery material mixture from substances including an active material, a binder and a solvent, and/or configured to provide the battery material mixture to at least one deposition device configured for applying the battery material mixture onto an electrode substrate, and at least one content measuring device configured to determine a content of at least one of the substances in the mixture.

Disclosed herein is a battery manufacturing system comprising at least one intermediate conduit or intermediate container configured to receive a battery material mixture from a reactor configured for making the battery material mixture; and at least one measuring device configured to determine a physical property of the mixture in the at least one intermediate conduit or intermediate container downstream of the reactor.

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.

An ultrasonic welding device for ultrasonically welding laminated workpieces while preventing generation of burrs and/or foreign substances, and a welded structure using the same are provided. The ultrasonic welding device includes a horn for pressing a first member to torsionally ultrasonically weld the first member and a second member in contact with the first member, wherein the horn includes a horn body having a cylindrical shape to perform torsional rotation, a horn tip extending from one end of the horn body and facing the first member, and a knurling portion protruding from the horn tip to form irregularities on the first member, and the knurling portion includes a plurality of knurling portions spaced apart from each other to prevent the first member from being extruded to an outside of the horn tip due to torsional rotation of the horn and to secure a space in which the first member is accommodated

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.