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1357
results.
Updated on
04/05/2026 [07:57:00]
Results 475 to 500 of 1357
Absstract of: EP4734217A1
0001 A method for manufacturing a pouch-type secondary battery according to one embodiment comprises the steps of: accommodating an electrode assembly including a positive electrode and a lithium metal negative electrode in an inner space of a pouch-type case; injecting a composition for a polymer electrolyte into the pouch-type case; curing the composition for a polymer electrolyte; and degassing, wherein the curing step may involve curing the polymer electrolyte without pressurizing the pouch-type case.
Absstract of: EP4734272A1
Provided is a secondary battery in which battery capacity is improved while having relatively few restriction in shape, an amount of moisture introduced from the outside is reduced, and structural stability is improved. A secondary battery according to the present invention include an electrode assembly, an exterior film configured to surround a portion of the electrode assembly, and a cap configured to cover a remaining portion of the electrode assembly. The cap includes a connection part coupled to the exterior film, and a terminal part coupled to the connection part, exposed to each of the inside and outside of the connection part, and electrically connected to the electrode assembly at a portion thereof, which is exposed to the inside of the connection part. At least a portion of the terminal part is embedded into the connection part.
Absstract of: EP4734175A1
0001 The present invention relates to a positive electrode active material comprising: a single particle-form lithium nickel-based oxide having a Ni content of 50 mol% to 75 mol% and doped with a doping element M<1>; and a coating layer formed on the single particle-form lithium nickel-based oxide and comprising a coating element M<2>, wherein an oxidation number AON
Absstract of: EP4734158A1
A battery manufacturing system includes an electrode process device for performing an electrode process; and a roll map creating device for creating a roll map including coordinate value data indicating locations on an electrode and measurement and inspection data generated as the electrode process is performed on the electrode and matched to the coordinate value data, where the roll map creating device receives an input of a defect location of the electrode and generates tag coordinates of a tag corresponding to the defect location, define, based on the tag coordinates, a leading removal criteria coordinate leading to the tag coordinates and a following removal criteria coordinate following the tag coordinates, and create a surviving electrode roll map excluding electrode removal sections between the leading removal criteria coordinate and the following removal criteria coordinate.
Absstract of: EP4732963A1
Disclosed herein relates to a slot die coater including: a first die block provided with a manifold for accommodating an electrode slurry; a second die block coupled to the first die block; and a coater shim interposed between the first die block and the second die block in a form that wraps around both sides and the rear surface of the manifold, wherein at front surfaces of the first die block and the second die block, an area not sealed by the coater shim while communicating with the manifold forms an electrode slurry slot, and on the surface of the first die block and/or the second die block in contact with the coater shim, a groove formed concavely to have an open end toward the front surface of the first die block and the second die block forms an insulating solution slot.
Absstract of: EP4734188A1
0001 The present invention relates to a negative electrode for a lithium secondary battery, using lithium metal as a negative electrode active material, and, specifically, to a negative electrode for a lithium-sulfur battery, having, on a lithium metal layer, a protective layer comprising ion conductive inorganic particles and a binder polymer, and thus exhibiting the effect of improving the lifespan and coulombic efficiency of the lithium secondary battery.
Absstract of: EP4734229A1
0001 An electric battery pack comprises a container (2) including a bottom wall (2A), side walls (2C) and an upper lid (2B). Within the container are disposed assemblies of battery cells (4) arranged side by side and spaced apart from one another. A temperature-regulating system uses a temperature-regulating liquid that flows from an inlet collector chamber (11) located below the battery cells (4), through the spaces (9) defined between the battery cells (4), into an outlet collector chamber (13) arranged above the battery cells (4). The temperature-regulating system includes a heat exchanger (6) to maintain the temperature of the temperature-regulating liquid within a determined range. The heat exchanger consists of a heat exchange plate (6), including one or more passages (15) for a secondary fluid, which is associated with the lid (C) or the bottom wall (2A) of the container (2), so that the flow of the temperature-regulating liquid comes into contact with the heat exchange plate (6) inside the container (2). In a preferred example, the heat exchange plate (6) is associated with the lid (C) of the container (2), in such a way as to constitute a lower wall of the outlet collector chamber (13) of the temperature-regulating liquid, and is furthermore arranged in contact with upper surfaces of the battery cells (4), in such a way that the heat exchange plate (6) is able to exchange heat both with the flow of the temperature-regulating liquid and with the battery cells (4) t
Absstract of: EP4734179A1
The current invention is concerned with sulfurized vinyl aromatic polymers including sulfurized poly(styrene) (SPS) and sulfurized poly(vinylpyridine) (SPVP) and their use as cathode active materials for lithium-sulfur (Li-S) batteries. Respective Li-S batteries are fabricated from cathodes using SPS and SPVP, respectively, a lithium metal foil anode, an electrolyte, and a separator. The current invention is further concerned with cathodes, which comprise respective sulfurized vinyl aromatic polymers, electrochemical cells, which comprise respective cathodes and batteries and battery packs, which comprise respective electrochemical cell, as well as the use of the batteries and battery packs for energy storage.
Absstract of: EP4734224A1
0001 An extinguishing system 100 of a battery module 200 is disclosed. The system includes an extinguishing agent 110, at least one consumable unit 120, a plurality of sensors 130. The plurality of sensors include a temperature sensor and a pressure sensor, at least one conducting element 140, at least one connecting switch 141 and a control unit 300. the control unit 300 is configured to determine the internal temperature value Ti and the internal pressure value Pi of the battery module based on the signals received from the plurality of sensors. The control unit is configured to selectively operate the at least one connection switch to transmit an electrical current C to the at least one consumable unit. The electrical current C heats the conducting element which in turn melts the unit, exposing the extinguishing agent into the entire inner volume of the battery module in a controlled manner.
Absstract of: EP4734235A1
An insulation apparatus includes a panel portion including an insulating layer, a pair of frame portions arranged to surround opposing sides of the panel portion, and an insulating portion positioned between the panel portion and each of the frame portions, wherein a space is formed between each of the frame portions and the panel portion.
Absstract of: EP4734236A1
A secondary battery (2), including a case (100), an electrode assembly (200) inside the case (100), a cap assembly (400) sealing the case (100), the cap assembly (400) including a first terminal (420) and a second terminal (430), a first tab member (301) extending in a first direction from the electrode assembly (200), a first sub plate (500) between the electrode assembly (200) and the case (100), the first sub plate (500) being connected to the first tab member (301), a first terminal plate (600) connected to the first terminal (420) and the first sub plate (500), and a first direct connecting portion (650) in the first sub plate (500) to allow the first terminal plate (600) and the first tab member (301) to be directly welded together.
Absstract of: EP4734186A1
An electrode structure includes a positive electrode substrate. A composite layer is disposed on a surface of the positive electrode substrate, with the composite layer including a conductive adhesive layer mixed with an active material. An insulating layer is disposed on opposite side surfaces of the composite layer. Also disclosed are a method of manufacturing an electrode structure, and a secondary battery including an electrode structure.
Absstract of: EP4734227A1
A battery pack includes at least one housing, at least one battery and at least one liquid cooling plate. The housing has an accommodation space and comprises a first end portion and a second end portion arranged opposite to each other. The first and the second end portions are respectively provided with a first liquid inlet and a first liquid outlet. The battery is arranged within the accommodation space. The liquid cooling plate abuts on the housing and configured to accommodate a cooling liquid, and comprises a third end portion and a fourth end portion arranged opposite to each other. The third and the fourth end portions are respectively provided with a second liquid outlet and a second liquid inlet. The first end portion abuts on the third end portion, and the second end portion abuts on the fourth end portion.
Absstract of: EP4734160A1
A method of forming a shaped electrode film and products thereof, are described. The electrode film having a shaped edge may aid in the core circularity of electrode assemblies, which may improve the structural stability of energy storage devices with minimal change in electrode assembly design and manufacturing.
Absstract of: EP4734244A1
A secondary battery may include an electrode assembly, a case accommodating the electrode assembly and including an electrode terminal coupled to an electrode tab of the electrode assembly, a case cover on an open side of the case, and a support portion protruding from the case cover to one side and coupled to a housing accommodating the case, wherein the support portion is configured to be elastically deformed and released from the housing based on receiving an external force.
Absstract of: EP4734242A1
A secondary battery, including an electrode assembly, a case accommodating the electrode assembly, and a vent in the case, the vent being deformable by a first operating pressure and rupturable by a second operating pressure greater than the first operating pressure.
Absstract of: EP4734228A1
0001 Provided are a cell bracket and an immersion-type liquid-cooled battery pack. A first surface (4a) of the cell bracket includes a plurality of cell limiting grooves (41) configured to accommodate cells (21) of the battery pack. A protrusion block (42) for supporting a cell (21) is disposed in a respective cell limiting groove (41). In a state where an end surface of the cell (21) abuts against the protrusion block (42), a flow gap (41a) exists between a groove bottom surface of the cell limiting groove (41) and the end surface of the cell (21). The cell bracket further has a second surface (4b) opposite to the first surface (4a). A communication hole (43) penetrating the first surface (4a) and the second surface (4b) is disposed on the cell bracket and is configured to communicate with a liquid hole of a liquid-cooled plate of the battery pack.
Absstract of: EP4733265A1
0001 A positive electrode active material includes a first positive electrode active material having an average particle diameter (D<50>) in a range of 11 µm to 20 µm and in a form of secondary particles in which a plurality of primary particles are agglomerated; a second positive electrode active material having D<50> in a range of 5 µm to 10 µm and in a form of secondary particles in which a plurality of primary particles are agglomerated; and a third positive electrode active material having D<50> in a range of 1 µm to 7 µm and in a form of single particles; wherein the third positive electrode active material is in an amount in a range of 5 wt% to 20 wt% based on 100 wt% of the first positive electrode active material, the second positive electrode active material, and the third positive electrode active material.
Absstract of: EP4734240A1
A secondary battery includes a case and an electrode assembly provided in the case. The electrode assembly includes a first electrode plate having a first electrode tab, with an insulating layer covering a portion of one surface of the first electrode tab. The electrode assembly also includes a second electrode plate having a second electrode tab. A separator is disposed between the first electrode plate and the second electrode plate. The ratio of thickness of the first electrode plate to the thickness of the insulating layer is 45% to 65%.
Absstract of: EP4733780A2
0001 A jig for measuring a breakdown voltage of an insulator includes a support portion accommodating a specimen, support members on the support portion, the support members being connected to the support portion, a first plate connected to the support members, the first plate being movable along the support members, a pressurizing portion connected to a first side of the first plate, the pressurizing portion being configured to apply a pressure to the specimen, and a pressure control portion connected to a second side of the first plate, the pressure control portion being configured to adjust a moving distance of the first plate, wherein the pressurizing portion includes a rod configured to pressurize the specimen, a chuck to which the rod is detachably connected, and a pressure sensor between the chuck and the pressure control portion, the pressure sensor being configured to measure the pressure applied to the specimen.
Absstract of: EP4734208A1
0001 A non-aqueous electrolyte energy storage device according to one aspect of the present invention includes: a positive electrode including a lithium-transition metal composite oxide containing nickel and manganese; and a negative electrode including graphite, in which a molar ratio of cobalt to manganese in the lithium-transition metal composite oxide is less than 1.0, a molar ratio of nickel to manganese in the lithium-transition metal composite oxide is more than 1.0 and 1.5 or less, and a depth of charge of the graphite in a charged state is more than 0.40 and less than 0.65.
Absstract of: GB2644629A
A method of manufacturing a particulate transition metal carbonate material. A transition metal precursor salt in a liquid vehicle is mixed with a carbonate salt and/or a bicarbonate salt, and a precipitation reaction carried out to form a slurry of the transition metal carbonate. The particulate transition metal carbonate material has a volumetric median particle diameter Dv50 of from 0.2 to 10.0 µm. The transition metal salt may be a sulphate and may comprise one or more of manganese, nickel, cobalt and iron. The reaction may be carried out under sonication at ultrasound frequencies or under stirring. A slurry of produced metal carbonate particles may be provided to act as seed particles for precipitation reaction such that a precipitate of transition metal carbonate is deposited on the surface of the seed particles.
Absstract of: EP4732957A1
An electrode tab scrap collection device related to one example of the present invention comprises a negative pressure pump arranged to suck by generating a negative pressure, a separation part including an inflow port arranged so that scraps are introduced from the outside, and a discharge port arranged so that the introduced scraps are discharged, a suction pipe connected to the negative pressure pump, having a suction port arranged to suck air, and inserted into the separation part, a cover part connected to the lower portion of the separation part and being in communication with the discharge port, a collection container arranged to store the scraps and arranged to be combinable to or separable from the cover part, and a mounting lever arranged so that the collection container is combined to or separated from the cover part.
Absstract of: EP4734206A1
0001 Provided is a lithium secondary battery including a negative electrode including a negative electrode current collector and a negative electrode active material layer formed on the negative electrode current collector, a positive electrode, and an electrolyte including a lithium salt, an organic solvent, and an additive, wherein the negative electrode active material layer includes Si as a negative electrode active material, the organic solvent contains fluoroethylene carbonate, and Z below has a value of 0.1 to 0.2. z = X / Y
0002 The X above is a content (wt%) of Si with respect to the total weight of the negative electrode active material included in the negative electrode active material layer, and the Y above is a content (wt%) of fluoroethylene carbonate with respect to the total weight of the electrolyte, after the lithium secondary battery is activated.
Nº publicación: EP4733785A1 29/04/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Absstract of: EP4733785A1
0001 The present disclosure provides a device for diagnosing resistance characteristic, comprising: an acquisition unit that acquires a charging or discharging profile in a specified charge/discharge cycle of a unit cell; a generation unit that generates a capacity voltage differential data representing a capacity voltage differential value(dQ/dV) of the unit cell in a charge or discharge cycle included in the specified charge/discharge cycle, based on the charging or discharging profile; and a diagnosis unit that diagnoses resistance characteristic of the unit cell based on the capacity voltage differential data, a diagnosis method thereof, and a unit cell for secondary battery satisfying specific conditions according to the method.
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