LG Energy Solution Patente

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According to exemplary embodiments, a die coater is provided. The die coater includes: a first die including a manifold; a shim on the first die; a plurality of coating gap measuring devices coupled to the first die; and a second die coupled to the first die, wherein each of the plurality of coating gap measuring devices is configured to measure a distance from a lip, which is a slurry discharge part of the first die, the shim, and the second die, to a coating roll.

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A pouch type secondary battery which comprises an electrode assembly; a battery case comprising an accommodation portion for accommodating the electrode assembly and a terrace portion formed along a perimeter of the accommodation portion; an electrode lead connected to the electrode assembly and protruding to the outside of the battery case via the terrace portion; a lead film disposed between the electrode lead and the battery case; and a gas guide film disposed between the electrode lead and the lead film, wherein the terrace portion comprises a sealing portion with a portion thereof sealed along the perimeter of the accommodation portion, and the lead film comprises inorganic particles is provided. The pouch type secondary battery includes inorganic particles in a gas permeable lead film, and may thus improve gas discharge performance.

Disclosed herein relates to a battery device including: a base frame; a plurality of cell assemblies provided on the base frame, each including a plurality of battery cells; an inner frame provided on the base frame and disposed between the plurality of cell assemblies; a thermally conductive adhesive layer attaching the plurality of cell assemblies to the base frame; and a first thermal barrier pad containing a first thermally expandable material, disposed between each of the plurality of cell assemblies and the inner frame.

The present disclosure relates to a diagnostic information collecting method for vehicle diagnosis and a battery system. A method in which a master electronic control unit (ECU) collects diagnostic information for vehicle diagnosis from a plurality of slave ECUs according to an aspect of the present disclosure includes receiving a data request for the diagnostic information from a diagnostic device, determining whether a total capacity of a required buffer corresponding to a data length of diagnostic data including the diagnostic information and the number of the plurality of slave ECUs is less than a buffer size allocated for diagnosis, collecting a plurality of diagnostic data from the plurality of slave ECUs in a multi-channel or single-channel communication method based on whether the total capacity is less than the buffer size, and transmitting the plurality of diagnostic data to the diagnostic device.

The present invention relates to an electrode manufacturing device and an electrode manufacturing method, which provides an electrode manufacturing device and an electrode manufacturing method, capable of effectively preventing over-drying by adjusting a speed of a fan in a drying part to a lower rotation speed than the rotation speed before a shutdown based on the internal humidity of the drying part, upon restart of a coating part after the shutdown.

According to some embodiments, a battery management device includes an interface configured to acquire battery data of a battery and a controller configured to calculate a first state of health (SOH) value of the battery based on the battery data, calculate a first SOH correction value for the first SOH value using a regression equation that calculates an SOH correction value based on error factors causing an error in the first SOH value, and calculate a second SOH value by applying the first SOH correction value to the first SOH value.

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Disclosed herein relates to a coating device including: a coating die including a first discharge port for discharging a first coating solution; and a first shim disposed within the coating die and including a second discharge port for discharging a second coating solution, wherein the first shim includes a protruding portion protruding outside the coating die. [Claims]

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An electrode assembly according to an embodiment of the present disclosure includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrode lead connected to the positive electrode or the negative electrode. The electrode lead includes a lower lead layer, an intermediate lead layer disposed on the lower lead layer, and an upper lead layer disposed on the intermediate lead layer. The electrode assembly according to an embodiment of the present disclosure and a battery cell including the same may improve heat generation by maintaining existing sealing process parameters and using a material having a high thermal conductivity.

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The present disclosure provides a method for manufacturing a separator, the method including (S10) preparing a separator coating slurry composition including pore-inducing particles; inorganic particles; a particle-type binder and a solvent; (S20) applying the separator coating slurry composition to at least one surface of a porous polymer substrate to form a porous coating layer; (S30) removing at least some of the pore-inducing particles of the porous coating layer by an etching solution; and (S40) drying the porous coating layer from which the at least some of the pore-inducing particles have been removed.

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The present invention relates to a battery charging control apparatus and method, and a battery system and a charging apparatus including same, wherein the battery charging control apparatus includes the commands of: obtaining temperature information of a battery system; and during charging of a battery via a charging apparatus, controlling a charging current of the battery on the basis of the temperature information of the battery system, and the battery system may include a battery management apparatus that, during charging of the battery via the charging apparatus, receives temperature information from a second temperature sensor located in the charging apparatus, and controls a charging current of the battery on the basis of temperature information received from at least one of a first temperature sensor and the second temperature sensor.

The present invention relates to a battery case having excellent durability and a secondary battery including the same, wherein the battery case according to the present invention includes a first polymer layer, a second polymer layer, and a gas barrier layer disposed between the first polymer layer and the second polymer layer, and includes at least one cup portion curved in one direction, wherein a K value according to Equation (1) is 63.0 or more. K=P/C+50DIn Equation (1),P is a thickness value of the battery case which is measured in µm,C is a depth value of the cup portion which is measured in mm, andD is a ratio of a thickness of the gas barrier layer to a total thickness of the first polymer layer and the second polymer layer.

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The present disclosure provides a cylindrical battery cell having a structure capable of rapid cooling through a bottom portion of a can, a battery pack including the battery cell and having a bottom cooling structure, and a vehicle including the battery pack as a power source. The battery cell includes a can having a sidewall portion extending in an axial direction, an opening present at a first end portion of the sidewall portion, and a bottom portion connected to a second end portion of the sidewall portion; an electrode assembly including a first electrode and a second electrode, the electrode assembly housed in the can; a cap covering the opening of the can and electrically connected to the first end portion of the sidewall portion; and a first electrode terminal installed at a central portion of the cap and electrically insulated from the cap, wherein the first electrode is electrically connected to the first electrode terminal, and the second electrode is electrically connected to the can and the cap.

An anode according to various embodiments comprises: a first metal layer formed of a lithium metal; and a second metal layer which is formed of a material other than the lithium metal and which at least partially overlaps and is bonded to the first metal layer, wherein the second metal layer can be interposed between a plurality of the first metal layers, or the first metal layer can be interposed between a plurality of the second metal layers. Other embodiments are possible.

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Provided is an electronic device for clustering data related to a battery charging pattern. The electronic device may be configured to: acquire a plurality of pieces of battery charging data for a plurality of vehicles; generate a plurality of features related to a battery charging pattern on the basis of the plurality of pieces of battery charging data; classify the plurality of features into a preset number of data sets by sampling the plurality of features; determine the number of clusters corresponding to each of the preset number of data sets on the basis of a clustering algorithm and an index for evaluating a clustering result; set a reference number of clusters corresponding to the plurality of features on the basis of the optimal number of clusters of each of the preset number of data sets; and cluster the plurality of features into clusters of the reference number of clusters.

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A notched tab scrap suction apparatus is disclosed. The scrap suction apparatus includes: a notched tab processing unit cutting a non-coated area provided at one widthwise end of an electrode traveling in lengthwise direction thereof to form a notched tab portion; a first roller provided under the notched tab processing unit and having a lower circumferential surface in contact with the electrode and the scrap traveling downward from the notched tab processing unit to change a traveling direction of the electrode and the scrap to a first direction; a second roller spaced apart from the first roller in the first direction and having a upper circumferential surface in contact with the electrode and the scrap traveling in the first direction to change a traveling direction of the electrode and the scrap to a second direction; and a suction unit spaced apart from the second roller in the second direction and positioned under the electrode traveling in the second direction.

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A secondary battery according to one embodiment of the present invention comprises: an electrode assembly; an electrode tab having one end electrically connected to at least one electrode in the electrode assembly; a battery case including an accommodation part for accommodating the electrode assembly and the electrode tab; and an electrode lead bonded to the other end of the electrode tab so as to protrude to the outside of the battery case, wherein the battery case further includes a space part which is connected to one end of the electrode lead and which is expanded by gas when the gas is generated inside the battery case, and the electrode tab can be broken by physical force transferred through the electrode lead when the space part is expanded by the gas to a predefined threshold level or more.