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1500
resultados
Última actualización
27/06/2026 [07:57:00]
Resultados 375 a 400 de 1500
Resumen de: EP4765420A1
0001 Disclosed is a battery pack, which includes a plurality of battery modules; a pack case having an outer wall and a plurality of cross beams that partition an inner space surrounded by the outer wall, the pack case being configured such that the plurality of battery modules are respectively arranged in the partitioned spaces; and a gas movement channel provided inside the cross beams and the outer wall, wherein the battery pack is configured such that, when gas is generated in any one of the battery modules, the gas is discharged to the outside of the pack case through the gas movement channel of the outer wall and the cross beam adjacent to the battery module in which the gas is generated.
Resumen de: EP4765295A1
0001 A lithium secondary battery may include an electrode assembly including a positive electrode, an electrolyte, and a battery case including an internal space for accommodating the electrode assembly and the electrolyte. The positive electrode includes a positive electrode active material, and the positive electrode active material includes a lithium nickel-based oxide containing 50 mol% to 70 mol% of nickel among all metals excluding lithium. An electrolyte filling factor (EFF) index defined by Equation 1 is 1.52 to 1.88. EFF = R E × S U N C
0002 In Equation 1, R
Resumen de: EP4765302A1
0001 The present invention relates to a lithium secondary battery including a battery case, and an electrode assembly and an electrolyte accommodated in the battery case, wherein a G value, defined by Equation (1) below, is 1.8 to 3.5. G = V CH − V C 0 V total × C × 100
where, in Equation (1) above, V
Resumen de: EP4765291A1
0001 The present invention relates to a lithium secondary battery having improved high-temperature cycle characteristics, and particularly, to a lithium secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes lithium iron phosphate and lithium nickel cobalt manganese oxide as a positive electrode active material, a loading amount of the positive electrode is in a range of 32 mg/cm<2> to 60mg/cm<2>, and the electrolyte includes a lithium salt; a first organic solvent; a second organic solvent; a first additive; and a second additive, wherein the first organic solvent is a cyclic lactone compound, the second organic solvent is a carbonate-based organic solvent, the first additive is an oligomer including a repeating unit derived from a monomer represented by Formula 1 and a repeating unit derived from a monomer represented by Formula 2, and the second additive is an imidazole-based compound.
Resumen de: EP4765362A1
A pouch-type exterior according to an embodiment of the present disclosure may include a cup portion formed into a recessed shape; and a terrace portion connected to the cup portion. A circumference portion of the cup portion may include a concave portion that curves inwards; a first circumference portion located between a bottom portion of the cup portion and the concave portion; and a second circumference portion located between the concave portion and the terrace portion. The concave portion may curve inwards from the first circumference portion and the second circumference portion.
Resumen de: EP4765438A1
The present application provides a battery apparatus, an energy storage apparatus, and an electric apparatus. A battery apparatus (200) includes a battery cell (300) and an electronic control assembly (400). The electronic control assembly includes a circuit board (51), a housing (40), and a covering structure (53). The circuit board is provided with a connector receptacle (52). The housing (40) is provided with an accommodating cavity (401), the circuit board (51) is installed in the accommodating cavity (401), and the housing (40) is provided with an opening (402) for the connector receptacle (52) to extend out. The covering structure (53) is disposed on the housing (40) and at least partially covers a gap (403) between the connector receptacle (52) and a side wall of the opening (402). The gap (403) between the connector receptacle (52) and the side wall of the opening (402) is covered, reduced, or occluded by using the covering structure (53), so that the electronic control assembly meets requirements of a required protection level.
Resumen de: EP4765255A1
0001 The present disclosure provides a positive electrode slurry composition including a positive electrode active material, a positive electrode conductive material, and a positive electrode binder, wherein the positive electrode binder includes an aramid-based polyamide polymer including a repeating unit of Formula 1 and a repeating unit of Formula 2, and wherein the molar fraction of the repeating unit of Formula 2 is 11 to 30 mol% based on the number of moles of the total repeating units of the aramid-based polyamide polymer. Formula 1 -NH-A<1>-NHCO-A<2>-CO- 0002 In Formula 1, A<1> and A<2> are each independently a divalent organic group having an aromatic ring. Formula 2 -NH-B<1>-NHCO-B<2>-CO- 0003 In Formula 2, B<1> and B<2> are each independently a divalent aliphatic organic group.
Resumen de: EP4765254A1
0001 The present disclosure provides a positive electrode slurry composition comprising a positive electrode active material, a conductive material, and a binder, wherein the binder includes an aramid-based polyamide polymer including a repeating unit of Formula 1 and hydrogenated nitrile butadiene rubber (H-NBR), wherein the molar fraction of the repeating unit of Formula 1 is 95 to 100 mol% based on the number of moles of the total repeating units of the aramid-based polyamide polymer. Formula 1 -NH-A<1>-NHCO-A<2>-CO- 0002 In Formula 1, A<1> and A<2> are each independently a divalent organic group having an aromatic ring.
Resumen de: EP4765251A1
0001 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 (D<50>) of 1 µm or less, the large-particle diameter lithium iron phosphate-based oxide has an average particle diameter (D<50>) 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.
Resumen de: EP4764479A1
The present invention provides a method of detecting and analyzing foreign matter in a battery cell which includes: preparing a battery cell to be inspected; obtaining a separator from an electrode assembly by disassembling the battery cell to be inspected; and analyzing the presence or absence of metallic foreign matter on a surface of the separator by introducing the separator into an X-ray fluorescence analysis apparatus, wherein the method is characterized in that the metallic foreign matter exists by penetrating through the surface of the separator facing a positive electrode and the surface of the separator facing a negative electrode in the electrode assembly before disassembly.
Resumen de: EP4764554A1
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.
Resumen de: EP4764527A1
0001 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.
Resumen de: EP4765248A1
0001 The present invention relates to positive electrode material powder including a single particle type lithium nickel-based oxide in which an amount of nickel among metals excluding lithium is 80 mol% or more, wherein the positive electrode material powder has a D<50> of 5.0µm or more, and has a crystal strain of 280×10<-6> or less, and a method of preparing the same.
Resumen de: EP4765419A1
The present disclosure relates to a battery pack, and the battery pack according to an aspect of the present disclosure includes a battery pack housing; at least one battery assembly accommodated in the battery pack housing; and a vent assembly disposed in the battery pack housing, wherein the vent assembly includes a vent body configured to provide a vent channel for fluidic connection between an inside and an outside of the battery pack housing; a membrane disposed in the vent channel to keep dust or moisture out; and a detector of a film or sheet shape configured to block at least part of the vent channel to measure a pressure of the vent channel.
Resumen de: EP4765231A1
The present disclosure relates to a negative electrode for a lithium secondary battery and a method of manufacturing the same. The negative electrode satisfies a ratio of porosity to orientation index (O.I.) of a carbon-based negative electrode active material within a predetermined range, thereby shortening the movement path of lithium ions in a negative electrode active layer and significantly lowering diffusion resistance of lithium ions, thereby the rapid charging performance of the negative electrode is excellent. In addition, the negative electrode has an advantage of excellent energy density of the negative electrode because the density of the negative electrode active layer is improved within a range that does not damage the shortened movement path of lithium ions.
Resumen de: EP4765306A1
The present invention relates to a 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 and impregnated with an electrolyte; a hollow center pin disposed on a winding axis of the electrode assembly and having a plurality of holes formed on an outer circumferential surface thereof; an electrolyte solid disposed inside a hollow of the center pin and including a first polymer electrolyte having a melting point of 60°C to 73°C; a battery case accommodating the electrode assembly and the center pin; and a sealing body sealing an open end of the battery case. A secondary battery with improved electrolyte impregnability may be achieved by using the electrolyte solid in the secondary battery.
Resumen de: EP4765274A1
The present disclosure may provide an electrode assembly in which a positive electrode, a negative electrode, and a separator interposed therebetween are wound, wherein at least one of the positive electrode and the negative electrode includes an uncoated portion at a long side end, and a winding turn portion of the uncoated portion is provided at one end of the electrode assembly, wherein the winding turn portion includes a cutting portion and a bending portion including a plurality of uncoated portion layers configured to be bent by pressure.
Resumen de: EP4765401A1
0001 The present disclosure provides a multi-layer stacked battery pack and a vehicle. The battery pack includes: a single-layer module, where the single-layer module includes a frame and a battery module, the frame includes an edge frame and a bottom plate, the undersides of both are connected to enclose a battery chamber that accommodates the battery module; and an upper cover; where a plurality of single-layer modules are stacked along a height direction, the bottom plate of an upper single-layer module of the single-layer modules is connected to the edge frame of an lower single-layer module of the single-layer modules, among adjacent two of the single-layer modules, to close the battery chamber, and the upper cover is connected to the edge frame of a top single-layer module of the single-layer modules.
Resumen de: EP4765314A1
0001 The present disclosure relates to a battery pack including: a plurality of battery cells; a pack case configured to store the plurality of battery cells and having a venting device provided on one side to discharge venting gas generated from the battery cell to the outside thereof; and an extinguishing member provided in the pack case and configured to provide an extinguishing agent to the venting device.
Resumen de: EP4765257A1
An electrode according to an embodiment of the present disclosure may include a sheet portion; and a tab portion protruded from the sheet portion and disposed closer to a side in a width direction of the sheet portion. An edge of the tab portion may include an end line located at an outermost side of the tab portion; a first side line located at a side in a width direction of the tab portion; a second side line located at an opposite side in the width direction of the tab portion; a first connection line connecting the first side line to the sheet portion; and a second connection line connecting the second side line to the sheet portion, wherein the second connection line is longer than the first connection line.
Resumen de: EP4765324A1
According to some embodiments, a battery management device includes a data acquisition unit configured to acquire battery data from a multi-pack battery including a main battery pack and one or more sub-battery packs and a control unit configured to determine whether a low-temperature pack in a low-temperature state exists among packs of the multi-pack battery based on the battery data, select a discharge pack from among the remaining packs of the multi-pack battery, excluding the low-temperature pack, based on the battery data when the low-temperature pack exists, and supply power by discharge of the discharge pack to a temperature management device configured to manage a temperature of the low-temperature pack.
Resumen de: EP4765313A1
0001 Disclosed is a battery pack which includes a plurality of battery modules; a pack case configured to accommodate the plurality of battery modules therein and having a concave portion concavely formed in a bottom plate on which each of the battery modules is mounted; and a fire extinguishing member accommodated in the concave portion and arranged at a lower portion of the battery module, the fire extinguishing member generating a fire extinguishing material when a thermal event occurs in the battery module.
Resumen de: EP4764561A1
A battery diagnosis device according to an embodiment disclosed in this document may include an acquisition unit that acquires state data representing a state of charge (SOC) and a voltage standard score (Z-Score) of a battery, an estimation unit that estimates, based on the state data, a first SOC section in which balancing of the battery occurs and a second SOC section in which balancing does not occur, an extraction unit that extracts, based on the state data, a first voltage standard score corresponding to the first SOC section and a second voltage standard score corresponding to the second SOC section, and a diagnosis unit that diagnoses an abnormality of the battery based on the first voltage standard score and the second voltage standard score.
Resumen de: EP4765394A1
A battery module according to an embodiment of the present disclosure may include a module housing having an accommodation space, and a plurality of pouch-type battery cells placed horizontally and stacked in a thickness direction within the accommodation space, wherein the battery cell includes a body portion accommodating an electrode assembly, and a sealing portion extended from an edge of the body portion, at least part of the sealing portion being folded down to prevent moisture buildup.
Nº publicación: EP4765418A1 24/06/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: EP4765418A1
A battery pack according to the present invention includes: a battery module; a middle case that is configured to accommodate the battery module and includes a top plate, a bottom plate spaced apart from the top plate so that a battery accommodation space is formed between the bottom plate and the top plate, and a middle wall that connects the top plate with the bottom plate so as to partition the battery accommodation space; and a side case coupled to the top plate and the bottom plate outside the battery accommodation space to cover the side of the battery accommodation space. The middle wall is spaced apart from the battery module to form a flow path through which a fluid may move when the fluid is vented from the battery module.
BOPI
Sede Electrónica
