LG Energy Solution Patente

An integrated isotope battery comprises: a substrate including a first surface, an opposite second surface, and a plurality of recesses formed in the first surface of the substrate; a layer formed at least in the plurality of recesses of the substrate, wherein the layer is of a conductivity type opposite to a conductivity type of the substrate, so that a first p-n-junction is formed at an interface between the layer and the substrate; a radioactive radiation source layer formed at least in the recesses on the layer, the radioactive radiation source layer being configured to emit radioactive radiation; a first layer formed at least in the recesses on the radioactive radiation source layer; and a second layer formed at least in the recesses on the first layer, wherein the second layer is of a different conductivity type from the first layer, so that a second p-n-junction is formed at an interface between the first layer and the second layer.

Provided is an isotope cell, including a plurality of isotope unit cells that includes an electrode including a first electrode and a second electrode, a radioactive source arranged between the first electrode and the second electrode, and an energy conversion layer arranged between the first electrode and the second electrode, and a connector that is arranged in at least some of gaps each existing between any adjacent isotope unit cells among the plurality of isotope unit cells, and electrically connects each electrode of the adjacent isotope unit cells.

A battery module according to an embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a module case configured to accommodate the battery cell stack; and a top plate disposed on an upper side of the battery cell stack, the top plate including: a mounting hole; and a protruding wall disposed at one edge of the mounting hole and protruding upward. Thereby, the battery module according to the present embodiment can prevent bending of the top plate and loss of the wireless communication function of the cell monitoring unit.

Disclosed is a battery pack including a battery pack housing having a receiving portion configured to receive a plurality of battery modules and a cover plate coupled to an open upper surface of the battery pack housing, wherein the battery pack housing includes side walls formed in a quadrangular frame shape, a plurality of openings is formed in the side walls, and any one of a cover and a venting valve is selectively coupled to an outer surface of each of the plurality of openings.

The present disclosure relates to a positive electrode slurry composition, a positive electrode, and a lithium secondary battery including the same, and particularly to a positive electrode slurry composition for a lithium secondary battery which includes a positive electrode active material, a film-forming additive, and a solvent, wherein the film-forming additive is a compound represented by Formula 1, a positive electrode for a lithium secondary battery, and a lithium secondary battery including the same.

A shim plate including a shim body and a coating layer is provided. The shim body is made of a stainless steel material. The coating layer is coated on a surface of the shim body. The shim plate is disposed between a first die block and second die block to create slot die coater with a slot defined within.

A battery treatment apparatus according an embodiment of the present disclosure comprises: a jig including an internal space into which the battery is inserted; a punching unit configured to move in a direction toward the jig and form a reaction hole in the battery; and a driving unit configured to move the jig and the punching unit, wherein the jig is configured to be able to limit movement of the battery immersed in the discharge material.

An anode composition according to an embodiment of the present invention comprises a silicon-based active material and a carbon-based active material, and simultaneously satisfies an optimal sphericity ratio represented by formula (1) and an optimal particle diameter ratio represented by formula (2). Formula (1): 0.7 ≤ X1/Y1 ≤ 1.5 Formula (2): 0.08 ≤ X2/Y2 ≤ 0.5. In formula (1), X1 denotes the sphericity of the silicon-based active material, and Y1 denotes the sphericity of the carbon-based active material, and in formula (2), X2 denotes an average particle diameter (D50) of the silicon-based active material, and Y2 denotes an average particle diameter (D50) of the carbon-based active material.

According to some embodiments, an energy analysis device includes a processor and a memory configured to store instructions that, when executed by the processor, cause the processor to perform operations including an operation of generating meteorological interpolation data for an area of interest to which a renewable energy power plant belongs by performing data interpolation based on observed values of meteorological observation data for the area of interest, an operation of generating a power generation estimation function based on the meteorological interpolation data and past power generation data of the renewable energy power plant, and an operation of estimating an expected power generation of the renewable energy power plant based on weather forecast data for the area of interest and the power generation estimation function.

A communication control method according to an embodiment of the present invention is a communication control method of a battery system control device interworking with one or more battery management systems (BMSs) and a network switch, and may comprise the steps of: monitoring a dynamic host configuration protocol (DHCP) allocation process between the network switch and each battery management device; collecting client internet protocol (IP) addresses and media access control (MAC) addresses during the monitoring; and matching and storing the IP addresses with battery management devices having MAC addresses matched with the collected MAC addresses.

The present invention relates to a positive electrode active material including a small-particle diameter lithium iron manganese phosphate-based oxide and a large-particle diameter lithium iron phosphate-based oxide, wherein the small-particle diameter lithium iron manganese phosphate-based oxide has an average particle diameter (D₅₀) of 1 µm or less, the large-particle diameter lithium iron phosphate-based oxide has an average particle diameter (D₅₀) of 4 µm to 10 µm, and the small-particle diameter lithium iron manganese phosphate-based oxide and the large-particle diameter lithium iron phosphate-based oxide are included in a weight ratio of 75:25 to 98:2.

A sealing gasket capable of improving sealing force and electrolyte leakage prevention performance of a battery cell and effectively preventing electrolyte leakage due to deformation caused by a crimping process, and a battery cell including the same are disclosed. A battery cell according to an embodiment of the present disclosure comprises: a battery housing configured to accommodate an electrode assembly of a secondary battery and having an opening at one side; a battery cap coupled to the battery housing to cover the opening of the battery housing; and a sealing gasket surrounding the battery cap to seal a space between the battery cap and the battery housing. The sealing gasket and an upper end of the battery housing are configured to be bent by a crimping process to wrap around a rim of the battery cap. The sealing gasket has a groove in a portion corresponding to an upper surface corner of the rim of the battery cap.

A method for inspecting a battery, according to an embodiment of the present invention, relates to a method for inspecting the quality of a battery in a manufacturing process, the method comprising the steps of: acquiring an image capturing at least a portion of the exterior of the battery to preprocess the image; detecting one or more defect candidate regions in the preprocessed image by using one or more detection algorithms; extracting position information of the defect candidate regions and shape feature information of the defect candidate regions; and inputting, into a pre-trained machine learning model, information related to the detection algorithms, the position information of the defect candidate regions, and the shape feature information of the defect candidate regions, to determine whether corresponding defect candidate shapes are defective.

According to an embodiment disclosed in this document, there is provided a battery diagnosis device including a memory configured to store battery data regarding a battery cell containing a plurality of active materials and at least one processor, in which the at least one processor is configured to identify a capacity of the battery cell, identify a reaction ratio of each of the plurality of active materials based on a voltage profile of each of the plurality of active materials, identify a degraded reaction capacity of each of the plurality of active materials based on the reaction ratio and the capacity of the battery cell, and identify a occupied by each of the plurality of active materials in a positive electrode capacity loss rate based on the reaction capacity and the positive electrode capacity loss rate.

Disclosed is a battery module, which includes: a plurality of battery cells stacked on one another and having electrode leads protruding therefrom; and at least one sensing assembly mounted to at least one side of the plurality of battery cells and configured to electrically connect the electrode leads, wherein the at least one sensing assembly includes: a sensing bus bar electrically connected to the electrode leads; and a plurality of sensing housing parts configured so that the sensing bus bar is mounted to a front surface thereof, the plurality of sensing housing parts allowing the electrode leads to pass therethrough toward the sensing bus bar, the plurality of sensing housing parts being detachably assembled with each other.

A battery system includes a battery module that utilizes the first and second retention housings to hold a battery cell retention frame therein that can be either air cooled or fluid cooled. In particular, the first and second retention housings have an inlet port and an outlet port, respectively, for routing fluid through the battery cell retention frame for cooling cylindrical battery cells thereon. Alternately, the battery cell retention frame can be air cooled for cooling the cylindrical battery cells. Also, the first and second retention housings provide improved structural integrity to the battery module.

Disclosed is a battery system that is easy to install or expand and has improved safety. The battery system according to an aspect of the present disclosure includes a plurality of battery containers, each including a battery rack, a container housing accommodating the battery rack in an internal space, and a first power line configured to transmit charge power and discharge power, wherein the first power lines of the battery containers are connected to each other; and a control cabinet including a control module configured to control the plurality of battery containers, a cabinet housing accommodating the control module in an internal space, and a second power line configured to be connected to the first power line of one of the plurality of battery containers.

According to an aspect of the present invention, there is provided a voltage determination circuit a voltage supply unit that supplies a predetermined voltage, a first switch that receives the supply voltage to switch according to a first threshold voltage, a second switch that receives the supply voltage to switch according to a second threshold voltage, and a third switch that receives an output of the second switch to switch according to a third threshold voltage.

Disclosed is a battery module with an improved safety by appropriately controlling venting when a thermal event occurs inside the battery module. The battery module includes a cell assembly having at least one battery cell; a module case configured to accommodate the cell assembly in an inner space thereof and having a venting hole formed therein to discharge a venting gas generated from the cell assembly; and a venting unit provided at an outer side of the module case and having a venting channel so that the venting gas discharged from the venting hole is introduced therein and discharged to the outside, the venting unit having a protrusion configured to protrude toward an outer surface of the module case from the inside of the venting channel.

A battery, comprising: battery components including an electrode assembly; an inflatable pouch case enclosing the battery components inside, the inflatable pouch case having an inner surface facing the battery components and an outer surface opposite to the inner surface; and electrode leads electrically connected to the electrode assembly and extending through the inflatable pouch case from the inside of the inflatable pouch case to an outside of the inflatable pouch case; the battery being characterized in that the outer surface of the inflatable pouch case is sealingly bonded to a surface of each of the electrode leads.

Disclosed herein relates to a battery pack for accommodating a battery module, including: a pack case in which a battery module settles; wherein the pack case includes: a main separation wall; a base plate coupled to the main separation wall and including a module area wherein the battery module is settled; and a side wall coupled along a perimeter of a base plate coupled to the main separation wall; wherein the main separation wall includes an insulating material with low thermal conductivity.

A system for allocating a communication ID according to an embodiment includes a plurality of slave BMSs each storing a plurality of first certificates, and a master BMS including a certificate chain, wherein the master BMS includes a memory for storing the certificate chain, and a processor that transmits a certificate transmission request signal to the plurality of slave BMSs based on detecting communication connection with the plurality of slave BMSs, receives each of the plurality of first certificates from each of the plurality of slave BMSs, verifies the integrity of each of the plurality of first certificates using the certificate chain, determines the validity of each of the plurality of slave BMSs based on whether each of the plurality of first certificates is intact, and allocates a first communication ID to valid slave BMSs among the plurality of slave BMSs.

A secondary battery according to an embodiment of this specification includes an electrode assembly, an exterior film having an inner space, in which the electrode assembly is accommodated, and an exterior opening, through which the inner space communicates with the outside, a cover member configured to cover the exterior opening of the exterior film, and a gasket member disposed between the cover member and the exterior film, wherein the gasket member is provided with a plurality of cover sealing parts that are in contact with the exterior film, and the exterior film is provided with a film sealing part on any one surface of surfaces perpendicular to the exterior opening, wherein I<DV> defined as a factor is 0.5 or more. The secondary battery may induce the ventilation direction to ensure safety.

A battery diagnosis device according to an embodiment of this document includes a memory in which one or more instructions are stored and a processor configured to execute the one or more instructions, and the processor is configured to acquire an equivalent cycle of the battery based on the battery being discharged for a first designated duration and predict the life of the battery when the battery is operated in a designated mode based on at least one of a first discharge energy used until the battery degrades by a designated percentage, a second discharge energy usable by the battery for a second designated duration, the equivalent cycle, or any combination thereof.

A battery diagnostic device according to an embodiment disclosed herein may include an interface configured to acquire a voltage value of one or more battery cells measured during a designated time interval and acquire an external temperature of the battery cells, and a controller configured to calculate a difference between voltage values at two points in time included in the designated time interval, select a discharge threshold corresponding to the external temperature and a target point in time of the two points in time, and diagnose a state of the battery cells by comparing the discharge threshold with the difference.

Disclosed herein relates to an inspection device including: an inspection jig including a first jig having a plurality of first pressure sensing elements and a second jig having a plurality of second pressure sensing elements, wherein the inspection jig is configured to generate thickness data regarding the thickness of a battery cell provided between the first jig and the second jig while the battery cell is in contact with the first jig and the second jig; and a processor configured to detect the bending dimensions and bending shape of the battery cell based on first pressure data generated from the plurality of first pressure sensing elements, second pressure data generated from the plurality of second pressure sensing elements, and the thickness data.

Disclosed are a sealing apparatus for sealing a sealed portion of a battery case having an electrode assembly received therein, the sealing apparatus including a first sealing unit configured to be located on one side of the sealed portion of the battery case and a second sealing unit configured to be located on the other side of the sealed portion of the battery case, wherein the first sealing unit includes a first heating block configured to be heated to a predetermined temperature, a first support block in tight contact with the first heating block, a first sealing tool located in tight contact with one surface of the first support block, the first sealing tool being configured to press one surface of the sealed portion, and a pair of first stopper portions located on both sides of the first support block and rotatably coupled thereto, each of the first stopper portions having a contact surface inclined so as to have different heights along a circumferential surface thereof, and a sealing method using the same.

Disclosed are an electrode tab inspection apparatus capable of quickly and accurately determining whether stacked electrode tabs are defective at low cost and an electrode tab inspection method using the same, and more particularly an electrode tab inspection apparatus including a photographing unit configured to photograph the electrode tab through transmission photography, an edge setting unit configured to set an edge for the part of a photograph result of the photographing unit in which the color or brightness changes, and a classification unit configured to classify the edge set by the edge setting unit as being related to stability or not being related to stability and an electrode tab inspection method using the same. The inspection apparatus and method achieve a detection rate of 100% for defects in the electrode tab.

An exemplary embodiment of the present invention relates to a method for manufacturing an electrode for a lithium secondary battery, the method including: bringing a transfer stack, in which a base layer and a lithium metal layer are in direct contact with each other, into contact with one surface of an electrode active material layer such that the electrode active material layer and the lithium metal layer face each other; and pressing the electrode active material layer in contact with the transfer stack under a pressure of 6 kgf/cm<2> or less and aging the electrode active material layer, wherein the transfer stack is formed by bringing the lithium metal layer into contact with one surface of the base layer and press-rolling the lithium metal layer, an electrode for a lithium secondary battery manufactured thereby, and a lithium secondary battery including the electrode.

A battery system, according to one embodiment of the present invention, may comprise: an upper BMS; and a plurality of lower BMSs. Here, the upper BMS and the lower BMSs may be communicatively connected via a communication bus. In addition, each of the lower BMSs may be connected to a filter for reducing communication noise, and the upper BMS may be connected to a compensation circuit for compensating for attenuation of a communication signal caused by the filters.

According to an embodiment disclosed in this document, there is provided a battery diagnosis device including a memory for storing one or more instructions, and at least one processor, in which the one or more instructions, when executed by the at least one processor, are configured to acquire capacity data and differential capacity data related to a battery cell, identify a first peak and a second peak based on the differential capacity data, identify a capacity range including a state of charge (SOC) corresponding to each of the first peak and the second peak based on the differential capacity data, and estimate a positive electrode capacity loss of the battery cell based on the capacity range.

The technical concept of the present disclosure provides a battery device including: a housing; a cell assembly provided within the housing and including a plurality of battery cells; a first thermally conductive adhesive layer configured to attach a first region of the cell assembly to the housing; and a second thermally conductive adhesive layer configured to attach a second region of the cell assembly to the housing, wherein the thermal conductivity of the first thermally conductive adhesive layer is greater than the thermal conductivity of the second thermally conductive adhesive layer, wherein the adhesive strength of the first thermally conductive adhesive layer is less than the adhesive strength of the second thermally conductive adhesive layer.

A battery module according to one embodiment of the present invention includes a plurality of battery cells, a module case configured to accommodate the battery cells, a top cover configured to cover an upper portion of the module case, end plates provided at both longitudinal ends of the module case, and an isolation cover interposed between the battery cells and the end plate and configured to be structurally coupled to the end plate.

An insulating composition according to one embodiment of the disclosure is an insulating composition including solids in an amount of 35% by weight or less based on the total weight, the solids include inorganic particles, a polymer material, and clay, the clay has positive charges and negative charges distributed within particles thereof and is included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the solid content, and the polymer material includes a functional group-containing polymer. The insulating composition has low viscosity at high shear rates and high viscosity at low shear rates, thereby providing excellent coating processability and enabling formation of a narrow insulation width by minimizing sliding portions during insulating layer formation, which can prevent the problem of reversal of the positive electrode/negative electrode capacity ratio that may occur due to sliding portions.

According to an embodiment disclosed in this document, there is provided a battery diagnosis device including an interface configured to acquire a temperature profile representing a temperature change of a battery cell with respect to a voltage change of the battery cell and a capacity profile representing a capacity change of the battery cell with respect to a voltage change of the battery cell and at least one processor, in which the at least one processor is configured to identify a first peak value representing a phase transition of the battery cell based on the temperature profile, and estimate a degree of degradation representing a degree of degradation of the battery cell based on identifying a first point corresponding to the first peak value in the capacity profile.

The present disclosure relates to a busbar and a battery module including the same, and the busbar according to an aspect of the present disclosure is a busbar for battery cells for electrical conduction between electrode leads of the battery cells, and includes a lead coupling portion having a coupling space where the electrode leads enter in a coupling direction; and a guide portion extending in the coupling direction from a side of the lead coupling portion to guide the electrode leads to enter the coupling space.

According to some embodiments, an energy analysis device includes a processor and a memory configured to store instructions that, when executed by the processor, cause the processor to perform operations including an operation of calculating a resource amount at an analysis target time point by summing wind speed values of dates that fall within a first analysis period having the analysis target time point as an end point based on wind data of an analysis target region, an operation of calculating past-year resource amounts corresponding to past years that fall within a second analysis period having the analysis target time point as an end point, and an operation of calculating a wind resource index at the analysis target time point based on the resource amount at the analysis target time point and the past-year resource amounts.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …