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1500
resultados
Última actualización
27/06/2026 [07:57:00]
Resultados 300 a 325 de 1500
Resumen de: EP4765300A1
A lithium secondary battery according to exemplary embodiments includes: a battery case; and an electrode assembly accommodated inside the battery case, wherein the electrode assembly includes a unit cell stack in which n (n is an integer of 2 or more) unit cells including a positive electrode and a negative electrode are arranged in a thickness direction, the unit cell stack includes a first unit cell and a second unit cell, the first unit cell includes a first positive electrode, and a positive electrode active material of the first positive electrode is composed of a first positive electrode active material represented by the following Chemical Formula 1. Chemical Formula 1 LipFe(1-q)M1qO4In Chemical Formula 1, M1 is any one of W, Cu, V, Cr, Ti, Zr, Zn, Al, In, Ta, Y, La, Sr, Ga, Sc, Gd, Sm, Ca, Ce, Nb, Mg, B, and Mo, andp and q are 5≤p≤7 and 0≤q≤0.5, respectively.
Resumen de: EP4765430A1
The present disclosure relates to a battery module including: a plurality of battery cells; a module case configured to store the plurality of battery cells and having a plurality of venting holes formed on one side thereof; and a barrier member provided inside the module case and configured to partition the plurality of battery cells into a plurality of cell groups and to communicate each of the plurality of cell groups with the venting hole corresponding thereto.
Resumen de: EP4765429A1
0001 The present disclosure relates to a battery module including: a plurality of battery cells; a module case configured to store the plurality of battery cells and having a plurality of venting holes formed on one side thereof; and a barrier member provided inside the module case and configured to partition the plurality of battery cells into a plurality of cell groups and to cover the venting hole corresponding to each cell group.
Resumen de: EP4764547A1
An apparatus for diagnosing a battery according to an embodiment of the present disclosure comprises a profile obtaining unit configured to obtain a charging profile representing a voltage change of a battery in a charging process; and a control unit configured to calculate a voltage change amount of the battery at a charging start point of the charging profile, calculate a target resistance of the battery based on the calculated voltage change amount and an initial SOC of the battery at the charging start point, and diagnose a state of the battery by comparing the target resistance with a first resistance profile in which a target resistance of the battery calculated in a previous charging cycle is stored.
Resumen de: EP4764568A1
The present invention relates to a lithium secondary battery, and more specifically to a lithium secondary battery having a multi-directional lead-tab structure. The lithium secondary battery of the present invention includes: an electrode assembly which is formed by alternately laminating an electrode plate having a current collector, an active material, and a tab, and an isolation layer; a lead which is electrically connected to the tab; and a battery case, wherein the lead is divided into an anode lead and a cathode lead, and at least two or more anode leads and cathode leads are provided. The battery of the present invention uses the same lead-tab size as the prior art and is suitable for use with high current.
Resumen de: EP4765338A1
A battery management apparatus according to an embodiment disclosed herein includes a temperature estimation unit configured to estimate a temperature of a battery based on electrochemical impedance spectroscopy (EIS) data related to impedance of the battery, a data acquisition unit configured to acquire measurement data related to a measured temperature of the battery, and a temperature correction unit configured to correct the estimated temperature of the battery to correspond to the measured temperature of the battery based on at least one correction coefficient generated based on an error between the measured temperature of the battery according to the measurement data and the estimated temperature of the battery.
Resumen de: EP4764543A1
A battery diagnostic device according to an embodiment disclosed herein includes a data acquisition unit configured to acquire voltage data and current data of a battery, a state of charge (SOC) calculation unit configured to calculate an SOC of the battery based on the current data, an error calculation unit configured to calculate an SOC error of the battery based on the calculated SOC of the battery and a reference SOC of the battery, and a state of health (SOH) prediction unit configured to calculate an SOH of the battery based on the SOC and the SOC error of the battery, input the calculated SOH of the battery into a linear regression model to derive a linear regression equation of the SOH of the battery, and predict the SOH of the battery based on the linear regression equation.
Resumen de: EP4763513A1
The present invention relates to a pouch film laminate including a sealant layer; a barrier layer; and a base material layer, wherein the pouch film laminate further includes a high-melting-point resin layer on at least one surface of the barrier layer, wherein the high-melting-point resin layer includes a solid-state polymer electrolyte (SPE), and the high-melting-point resin layer has a melting point higher than melting points of the sealant layer and the based material layer.
Resumen de: EP4765292A1
0001 Provided are an electrolyte, and an alkali metal secondary battery containing same. The electrolyte comprises a combination of an alkali metal salt and a solvent. The solvent comprises a combination of an ionic liquid, a weak polar solvent and an inert diluent, the weak polar solvent being a cyclic ether solvent. The electrolyte has low viscosity and good flame retardance and wettability, and can perform in-situ repair when an artificial SEI film on a surface of an alkali metal negative electrode is damaged, thereby ensuring long-term cycle stability of the battery. A surface of the alkali metal negative electrode of the alkali metal secondary battery is coated in advance with a layer of polyionic liquid artificial SEI film, inhibiting side reaction between the electrolyte and the electrode, and also reducing consumption of the electrolyte in the process of forming an SEI film. Additionally, by means of an electrostatic shielding effect of ionic liquid cations on a polymer chain segment, ion distribution can be homogenized, promoting uniform deposition of ions, alleviating the growth of metal dendrites, further prolonging the cycle life of the battery, and improving coulombic efficiency.
Resumen de: EP4765305A1
The present disclosure relates to a battery cell testing device, and the battery cell testing device according to an aspect of the present disclosure is a battery cell testing device for determining characteristics of a battery cell, and includes a support frame configured to support the battery cell; and a sensor assembly disposed at a side of the support frame and configured to sense the characteristics of the battery cell, wherein the sensor assembly includes a sensor; and a holder coupled to the support frame to support the sensor.
Resumen de: EP4765223A1
0001 The present invention relates to an electrode mixture film including a binder having a three-dimensional fiber network structure, and an electrode active material accommodated in the fiber network structure, wherein an R value defined by factors of density and tensile strength of the electrode mixture film is 5.0 to 10.0, and by increasing sheeting completeness of the electrode mixture film, the electrode mixture film may satisfy the range of the R value, through which it is possible to provide an electrode mixture film having excellent mechanical strength and excellent appearance characteristics and allowing a lamination process with a current collector to be stably performed.
Resumen de: EP4764558A1
A battery management apparatus according to an embodiment disclosed herein includes a data obtaining unit configured to obtain voltage data related to a voltage change with respect to time for each of a plurality of battery cells, a pre-processing unit configured to obtain reconstructed voltage data in a predetermined time section from a data set comprising the voltage data of each of the plurality of battery cells, by using a data decomposition algorithm, a noise processing unit configured to generate battery cell data by performing noise processing based on characteristics of the reconstructed voltage data, and an abnormal cell detection unit configured to detect an abnormal battery cell based on the voltage deviation of each of the battery cell data.
Resumen de: EP4764537A1
0001 According to some embodiments, a data management system includes a plurality of Internet of Things (IoT) configured to measure battery data from a plurality of battery modules and perform a reporting task for the battery data according to a data reporting policy, and a management server configured to diagnose states of the plurality of battery modules based on the battery data and adjust the data reporting policy based on the states of the plurality of battery modules and the result of the reporting task.
Resumen de: EP4765238A1
0001 The present disclosure relates to a positive electrode active material, a method of preparing the same, and a lithium secondary battery including the same. Specifically, the positive electrode active material of the present disclosure includes a lithium nickel-based oxide having a content of nickel among total metallic elements excluding lithium of 70 mol% or more; a first coating layer formed on the lithium nickel-based oxide; and a second coating layer formed on the first coating layer, wherein the first coating layer includes coating element M1 (the M1 is at least one selected from the group consisting of nickel (Ni), cobalt (Co), and aluminum (Al)), the second coating layer includes coating element M2 (the M2 is titanium (Ti)), and a content of titanium are included in the second coating layer, which is measured by X-ray photoelectron spectroscopy (XPS), may be in a range of 0.7 atomic% to 3.3 atomic% based on a total content of Ni, Co, lithium (Li), and oxygen (O) are included in the lithium nickel-based oxide which is measured by the XPS.
Resumen de: EP4765263A1
The present invention relates to a cylindrical secondary battery including an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate are wound in one direction; a battery can in which the electrode assembly is accommodated; an electrolyte solution injected into the battery can; and a sealing body which seals an open end portion of the battery can, wherein an impregnation rate of propylene carbonate (PC) in the positive electrode plate is equal to or greater than a reference rate, and a positive electrode active material in a single particle form is applied to the positive electrode plate, and the present invention relates to a preparation method of the cylindrical secondary battery.
Resumen de: EP4765403A1
A battery pack according to the present disclosure may include: a pack case having a storage space configured to store a plurality of battery cells therein and an opening formed on one side; a pack lid configured to cover the opening; a partition frame coupled to the pack case so as to partition the storage space; and a bolt member having at least a portion configured to pass through the pack lid and to be coupled to the partition frame, and a first thread portion disposed at an end close to the partition frame, wherein the first thread portion may include a high-temperature-sensitive material whose physical properties change in a predetermined high-temperature environment so that bonding strength between the bolt member and the partition frame is weakened.
Resumen de: EP4765299A1
0001 The present invention relates to an electrode assembly excellent in insulation and a secondary battery including the same, and the electrode assembly according to the present invention includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, satisfies Expression (1) below, and has a thickness of 10 mm or greater. A × B + 6 B ≥ 90
In Expression (1) above,
A is a ratio of an overall length to an overall width of the electrode assembly, and
B is a thickness value of the separator measured in µm.
Resumen de: EP4765779A1
0001 According to some embodiments, a data management system includes a first inspection device configured to generate a first inspection image and a first inspection value related to a result of a first manufacturing process of a battery cell, a second inspection device configured to generate a second inspection image and a second inspection value related to a result of a second manufacturing process of the battery cell, a collation device configured to receive the first inspection image, the first inspection value, the second inspection image, and the second inspection value using a plurality of communication schemes, and a management server configured to record the first inspection image and the second inspection image transmitted from the collation device separately from the first inspection value and the second inspection value transmitted from the collation device.
Resumen de: EP4765387A1
The present application discloses a battery and an electric device. The battery comprises a case, a heat exchange assembly, and at least one battery cell; the case comprises a plurality of first side beams, and the plurality of first side beams are connected to define a first accommodating cavity; the at least one battery cell is located in the first accommodating cavity; the heat exchange assembly is located in the first accommodating cavity, and comprises at least one heat exchange piece used for exchanging heat with the battery cell; and an accommodating slot is formed in at least one first side beam, and the at least one heat exchange piece is at least partially accommodated in the accommodating slot. In this way, the internal space of the case is saved, the space utilization rate of the battery is improved, and the structural compactness of the battery is improved, thereby improving the volumetric energy density of the battery.
Resumen de: EP4765296A1
The present disclosure relates to a secondary battery that can be charged and discharged and a method for manufacturing the secondary battery that can be charged and discharged. A secondary battery according to an embodiment of the present disclosure may include a plurality of electrode assemblies each having an electrode tab bundle, an interposed electrode interposed between the plurality of electrode assemblies, and a case accommodating the plurality of electrode assemblies and the interposed electrode.
Resumen de: EP4763758A1
Disclosed are a current collector plate alignment apparatus and a battery cell produced using the same, and a battery pack and a vehicle including the battery cell. A current collector plate alignment apparatus according to an embodiment of the present disclosure is an apparatus for aligning a current collector plate provided in a battery cell, and includes a seating member on which the current collector plate is seated; an alignment member that moves toward the current collector plate to align the current collector plate; and an operating member that operates the seating member and the alignment member.
Resumen de: EP4765459A1
0001 A battery pack according to the present disclosure includes: a plurality of battery cells; a bus-bar assembly connected to the battery cells; and at least one sensing assembly connected to the bus-bar assembly, wherein the sensing assembly may include: a sensing member including at least one sensing branch configured to sense at least some of the plurality of battery cells; and at least one support member coupled to the sensing branch and configured to support the sensing branch.
Resumen de: EP4764862A1
0001 A battery management device according to an embodiment of the present disclosure may include a memory configured to store at least one instruction and one or more processors configured to execute the at least one instruction, and the one or more processors may obtain measured values by measuring electrical characteristics of battery cells, obtain subtracted values by subtracting a representative value representing the measured values from the measured values, determine a range in which data compression is to be performed based on the subtracted values, generate a first partial stream according to a subtracted value of any one of the battery cells among the subtracted values or generate a second partial stream according to a measured value corresponding to the subtracted value, based on whether the subtracted value is included in the range, and generate a data stream indicating the measured values based on at least one of the first partial stream, the second partial stream, or any combination thereof.
Resumen de: EP4765407A1
0001 A battery pack according to an embodiment of the present disclosure includes: a first cell array structure having a plurality of battery cells and a first end frame at one end, and disposed to a side in a first direction; a second cell array structure having a plurality of battery cells and a second end frame at one end, and disposed to a side in a second direction so as to be stacked with the first cell array structure; and a first connecting bus-bar configured to electrically connect the first cell array structure and the second cell array structure stacked on each other, wherein the first end frame and the second end frame may have different electrode terminal structures.
Nº publicación: EP4765339A1 24/06/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: EP4765339A1
A battery management device disclosed herein includes a communication unit configured to receive temperature data of a 3-lead battery cell and a charging signal of the battery cell and a control unit configured to apply a current to a heating channel connecting electrodes of the same polarity based on the charging signal being a fast charging signal and stop applying the current based on a temperature of the 3-lead battery cell received from a temperature sensor reaching a reference temperature.
BOPI
Sede Electrónica
