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METHOD FOR MANUFACTURING ELECTRODE LAYER

Resumen de: EP4601029A1

Provided is a manufacturing method of an electrode layer, including a step A of measuring a surface shape of a transport member, a step B of placing a collector foil on the transport member after the surface shape is measured, and transporting the collector foil by moving the transport member, a step C of supplying, onto the transported collector foil, an electrode active material containing an electrode active material, a conductive auxiliary agent, and an electrolytic solution, and a step D of passing the electrode material supplied onto the collector foil through a gap formed between the transport member and a distal end of a film forming member which is disposed at a position spaced apart from a surface of the transport member to regulate a thickness of the electrode material and form an electrode material film, in which, in the step D, a disposing position of the film forming member is controlled based on measurement information of the surface shape of the transport member, which is obtained in the step A.

METHOD FOR PRODUCING ELECTRODE LAYER

Resumen de: EP4601028A1

Provided is a manufacturing method of an electrode layer, including a step A of forming an electrode material film on a collector foil, where the collector foil is transported using a transport member in which a plurality of pallets are connected in one direction, along a connection direction of the pallets, a step B of spacing the connected pallets apart from each other to divide a laminate of the collector foil and the electrode material film for each one pallet, and a step C of transporting the pallet on which the divided laminate of the collector foil and the electrode material film is placed along the connection direction of the pallets, and measuring a density and a thickness of the electrode material film using an X-ray examination device.

BATTERY CELL AND BATTERY MODULE

Resumen de: EP4601111A1

A battery cell (100A) includes a positive electrode tab (110A). The positive electrode tab (110A) includes a first base part (111A), a first upper end part (112A) decreasing in thickness away from the first base part (111A), and a first upper projection part (114A) that is positioned between the first base part (111A) and the first upper end part (112A) and protrudes further outward than the first base part (111A).

ELECTRODE SHEET AND ELECTROCHEMICAL DEVICE

Resumen de: EP4601060A1

An electrode and an electrochemical apparatus are provided. The electrode includes a current collector, an active layer, and an insulation layer. The active layer is coated on at least one surface of the current collector. The insulation layer is coated on the at least one surface of the current collector and connected to a periphery of the active layer. The insulation layer includes a water-based binder and an inorganic material, and a peel strength of the insulation layer after being immersed in water for 1 minute at a preset temperature is less than or equal to 7N/m. During recycling process of the electrode and the electrochemical apparatus, by performing water immersion, the current collector and the insulation layer in the electrode have relatively low peel strength, so that the current collector may be fully and efficiently recycled, resulting in high recycling rate of the electrode and the electrochemical apparatus.

NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Resumen de: EP4601026A2

Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery. The negative electrode includes a current collector; and a negative active material layer, wherein the negative active material layer includes a first active material layer on the current collector and including a first crystalline carbon, a Si-C composite, and a first binder; and a second active material layer on the first active material layer and including a second crystalline carbon, a Si-C composite, and a second binder, a particle diameter of the first crystalline carbon is smaller than a particle diameter of the second crystalline carbon, and based on the total negative active material layer, an amount of the first binder is larger than an amount of the second binder, an amount of the Si is about 3 wt% or more based on 100 wt% of the negative active material layer.

ENERGY STORAGE DEVICE CHARGING CONTROL METHOD AND RELATED APPARATUS

Resumen de: EP4601151A1

The disclosure provides a charging control method for an energy storage device and a related apparatus, and the method includes the following. A corresponding first usage device is determined based on a destination of a current trip in trip information, and a predicted power consumption amount of the first usage device is determined based on weather information of the trip information. A first charging amount of a first energy storage battery corresponding to the first usage device is determined based on the trip information and the predicted power consumption amount of the first usage device. Finally, a vehicle-mounted charger is controlled to charge the first energy storage battery based on the first charging amount of the first energy storage battery. In this way, the allocation efficiency of the energy storage capacity of the control system is improved.

BATTERY CELL AND BATTERY DEVICE INCLUDING THE SAME

Resumen de: EP4601058A1

A battery cell includes an electrode assembly in which a plurality of separators and a plurality of electrode plates including a plurality of electrode tabs are stacked in a first direction, a cell case accommodating the electrode assembly, a cap plate assembly covering an open end of the cell case and including an electrode terminal, and a current collector electrically connecting the plurality of electrode tabs and the electrode terminal. The plurality of electrode tabs include bent portions having a bend shape. The bent portions are arranged in a layered manner in the first direction. The current collector is welded to a plurality of the bent portions, while being disposed to face a second direction, intersecting the first direction.

MICROPOROUS BREATHABLE FILM AND METHOD OF MAKING THE MICROPOROUS BREATHABLE FILM

Resumen de: EP4600017A2

Microporous breathable films include a polyolefin and an inorganic filler dispersed in the polyolefin. Methods for forming polymeric films and articles of manufacture prepared therefrom are described.

BATTERY DIAGNOSIS METHOD, AND BATTERY DIAGNOSIS APPARATUS AND BATTERY SYSTEM PROVIDING SAME

Resumen de: EP4600673A2

Discussed is a battery diagnosis apparatus that includes a measuring unit to measure a battery voltage at opposite ends of a battery, and a battery current flowing through the battery; a storage unit to store an internal resistance value of the battery calculated based on the battery voltage and the battery current at each diagnosis time point; and a control unit to calculate, for the each diagnosis time point, a moving average that is an average of a plurality of internal resistance values corresponding to a number of previously stored samples based on the diagnosis time point, and comparing the internal resistance value calculated for the each diagnosis time point with an upper band threshold that is larger than the moving average by a predetermined value and a lower band threshold that is smaller than the moving average by a predetermined value to diagnose a defect in the battery.

UMBRELLA HUB AND BATTERY PACK ASSEMBLY

Resumen de: EP4599732A1

An assembly is provided that includes an umbrella hub and a battery pack. The umbrella hub includes a hub body and a support portion. The hub body to be disposed about an umbrella pole. The hub body including an upper surface and a lower surface. The support portion disposed at the lower surface of the hub body. The battery pack includes a housing, an outer periphery, an inner periphery, a projection, and a battery cell. The housing includes a first portion and a second portion. The outer periphery and the inner periphery are each defined in part by the first portion and the second portion. The projection extends from the inner periphery. The projection to rest on the support portion of the umbrella hub to couple the battery pack to the umbrella hub. The battery cell disposed in the housing to supply or receive power through an electrical connection.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: EP4601021A2

The present invention relates to a positive electrode active material for a secondary battery which includes a first positive electrode active material and a second positive electrode active material, wherein an average particle diameter (D₅₀) of the first positive electrode active material is twice or more an average particle diameter (D₅₀) of the second positive electrode active material, and the second positive electrode active material has a crystallite size of 200 nm or more.

ELECTRICAL POWER OUTPUT CONTROL BASED ON MECHANICAL FORCES

Resumen de: EP4599783A2

A surgical instrument comprising a jaw assembly is disclosed. The surgical instrument further comprises a motor-driven drive system configured to manipulate the jaw assembly. The surgical instrument also comprises a control system configured to control the drive system and, also, control a power supply system configured to supply electrical power to electrodes defined in the jaw assembly. In use, the surgical instrument can be used to apply mechanical energy and electrical energy to the tissue of a patient at the same time, or at different times. In certain embodiments, the user controls when the mechanical and electrical energies are applied. In some embodiments, the control system controls when the mechanical and electrical energies are applied.

UNDERBODY FOR VEHICLE

Resumen de: EP4601082A2

Disclosed is an underbody for a vehicle, comprising at least one battery module, a tray member fastened to a lower portion of a vehicle body frame and including a receiving portion having a structure with an open lower surface to accommodate the at least one battery module, a cover member to cover the open lower surface of the receiving portion, a thermal interface material interposed between the at least one battery module and the cover member. The cover member includes a flow path to circulate a refrigerant fluid.

BATTERY DEVICE AND BATTERY MANAGEMENT SYSTEM

Resumen de: EP4601076A2

A battery management system determines a charging current to charge a battery pack in each period based on a derating factor of a charge cycle including a plurality of periods, updates the derating factor based on a result of comparing a voltage of the battery pack in each period with a voltage upper limit value set in the corresponding period, and uses the updated derating factor in a next charging cycle.

CAPACITANCE REDUCING BATTERY SUBMODULE WITH THERMAL RUNAWAY PROPAGATION PREVENTION AND CONTAINMENT FEATURES

Resumen de: EP4601081A2

A battery system includes a can with a lip around an opening. At least an interior surface of the can is anodized and the lip of the can includes a longer and shorter side. The can further includes a flange on the longer side of the lip and a plurality of layers that are inserted into the can. The plurality of layers includes a battery cell and a thermally conducting layer with a fin and the fin has a spring force that pushes the fin towards the anodized interior surface. The battery system further includes a lid that is configured to cover the opening of the can, where the flange is configured to wrap around the lid when the lid covers the opening of the can.

BOX OF BATTERY, BATTERY, POWER CONSUMPTION DEVICE, AND METHOD AND DEVICE FOR PRODUCING BATTERY

Resumen de: EP4601101A2

Embodiments of the present application are provided with a box (11) of a battery (10), a battery (10), a power consumption device, and a method and device for producing a battery. The box of the battery includes: an electrical chamber (11a); a thermal management component (13); and a collection chamber (11b), configured to collect emissions from the battery cell (20) provided with the pressure relief mechanism (213) when the pressure relief mechanism (213) is actuated; wherein the thermal management component (213) is configured to isolate the electrical chamber (11a) from the collection chamber (11b), a pressure relief region is disposed on the thermal management component (13), and the emissions collected by the collection chamber (11b) is discharged through the pressure relief region. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

BATTERY ASSEMBLY AND DEVICE

Resumen de: EP4601079A1

The present disclosure provides a battery assembly and a device. By controlling a size parameter of a heat absorption sheet arranged on a side surface of a housing of a cell in a battery assembly, a mass of a heat absorption main material, a size parameter of the housing, and related parameters in a thermal runaway process to meet a specific relation, the heat absorption sheet can be ensured to fully suppress heat of a battery with thermal runaway from diffusing to an adjacent battery, and does not excessively affect space utilization of the battery assembly containing a number of cells.

BATTERY BOX AND BATTERY PACK APPLYING THE SAME

Resumen de: EP4601088A1

The disclosure relates to the technical field of batteries and particularly discloses a battery box and a battery pack applying the same. The battery box includes a bottom plate (1), a lateral plate (2), a lower support (3), a partition (4), and an upper support (5), in which a top surface of the bottom plate is provided with a first protrusion, the lateral plates are provided perpendicular to the bottom plate on two opposite edges of the bottom plate, an interior side of the lateral plate is arranged with a first snap-block (21) and a second snap-block (22) along an extension direction, the first snap-block is closer to the bottom plate than the second snap-block, two opposite ends of the lower support are provided on the first snap-block respectively, a bottom of the lower support is abutted against a first protrusion (11), a top of the lower support is arranged for placing cells, two opposite ends of the partition are fixedly connected to the second snap-block respectively, a top of the partition is provided with a second protrusion (41), two opposite ends of the upper support are provided on the second snap-block respectively, a bottom of the upper support is abutted against the second protrusion, and a top of the upper support is arranged for placing cells.

CYLINDRICAL SECONDARY BATTERY

Resumen de: EP4601086A1

Disclosed is a cylindrical secondary battery (100) in which an insulating member (170) located between a rivet terminal (150) and a cylindrical can (210, 310) includes protrusions (172a, 172b, 272a, 272b, 372a, 372b) protruding therefrom upward and downward, thereby preventing rotation of the rivet terminal (150). The cylindrical secondary battery (100) may include an electrode assembly (120) including a positive electrode plate (121), a separator (123), and a negative electrode plate (122), a cylindrical can (210, 310) configured to accommodate the electrode assembly (120) and to be electrically connected to the negative electrode plate (122) and including an open lower end portion, a rivet terminal (150) configured to be electrically connected to the positive electrode plate (121) through an upper surface of the cylindrical can (210, 310), an insulating member (170) located between the cylindrical can (210, 310) and the rivet terminal (150), and a non-polar cap plate (160) configured to seal the lower end portion of the cylindrical can (210, 310). The insulating member (170) includes protrusions (172a, 172b, 272a, 272b, 372a, 372b) formed on at least one surface thereof facing the cylindrical can (210, 310) or the rivet terminal (150).

POUCH-TYPE SECONDARY BATTERY

Resumen de: EP4601085A1

This invention relates to a pouch-type secondary battery including: a first pouch having a first cup portion recessed in a predetermined first direction to form a first inner space, and a first edge portion extending from the first cup portion in a predetermined horizontal direction perpendicular to the first direction and surrounding at least a portion of the first cup portion; and a second pouch disposed to face the first pouch, wherein the second pouch has a second cup portion recessed in a direction opposite to the first direction to form a second inner space for accommodating an electrode assembly together with the first inner space, and a second edge portion extending from the second cup portion in the horizontal direction to surround at least a portion of the second cup portion and coupled to the first edge portion; wherein the second inner space may include: an overlapping space that overlaps the first inner space based on a case of projection in the first direction, and an additional space that extends from the overlapping space in the horizontal direction and does not overlap the first inner space.

METHOD FOR PRODUCING LITHIUM-CONTAINING SOLUTION

Resumen de: EP4600391A1

Provided is a method for producing a lithium-containing solution that allows suppressing production cost for lithium production by suppressing solution amount after an adsorption step, increasing a lithium content rate in the lithium-containing solution, and suppressing amount of solution used in a step after a manganese oxidation step. The method for producing a lithium-containing solution performs the adsorption step, an eluting step, and an manganese oxidation step in this order. In the adsorption step, an anion-exchange resin is used together with the lithium adsorbent. This aspect allows hydrogen ions generated in the adsorption step to be adsorbed by the anion-exchange resin, thereby promoting an adsorption reaction. Therefore, the solution amount after the adsorption step can be suppressed, the lithium content rate in the lithium-containing solution increases, the amount of the solution used in the step after the manganese oxidation step is suppressed. This allows suppressing production cost for lithium production.

CURRENT COLLECTOR AND BATTERY

Resumen de: EP4601108A1

The present disclosure relates to the technical field of batteries, and for example, to a current collector (1) and a battery. The current collector (1) includes a pole post connecting portion (11), a main body portion (12) and a folded portion (13) which are sequentially connected. The pole post connecting portion (11) and the folded portion (13) are respectively located on an inner side and an outer side of the main body portion (12) or on the same side of the main body portion (12). One end of the main body portion (12) is connected to the pole post connecting portion (11), the other end of the main body portion (12) away from the pole post connecting portion (11) is bent to form at least one of the folded portion (13), and the pole post connecting portion (11) is connected to a pole post (41). The folded portion (13) overlaps the main body portion (12), and one of the folded portion (13) or the main body portion (12) is able to be welded to a tab (21) of a cell pack (2).

METHOD FOR DISCHARGING THE ELECTRIC CHARGE OF BATTERIES AND DEVICE THAT IMPLEMENTS SAID METHOD

Resumen de: EP4599939A2

A device (1) configured to implement a method for discharging the electric charge of batteries, cells and/or rechargeable batteries, comprising:- an inactivation chamber (2) of the batteries, cells and/or rechargeable batteries to be discharged introduced through an inlet path (21); the inactivation chamber (2) being delimited by one or more walls (22) and by a bottom (23);- an outlet path (25) of the discharged batteries, cells and/or rechargeable batteries defined in the inactivation chamber (2);- at least one inductive winding (3) configured to be powered by an electric current arranged externally to the walls (22) and wound around a winding axis (A), the winding axis (A) being preferably orthogonal to the bottom (23);the at least one inductive winding (3) being adapted to heat by induction the walls (22) of the inactivation chamber (2);the walls (22) being made of a material adapted to transmit heat so that the walls (22) heated by induction are adapted to heat by radiation the batteries, cells and/or rechargeable batteries arranged inside the inactivation chamber (2). The device comprises:- inerting means configured to introduce one or more inert gases into the inactivation chamber (2) so as to eliminate the oxygen and the humidity present inside the inactivation chamber (2);- a tank (7) of the discharged batteries, cells and/or rechargeable batteries received from the inactivation chamber (2) through the outlet path (25); the tank (7) and the inactivation chamber (2) be

SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: EP4601102A2

Provided is a separator which includes: a separator base including a porous polymer substrate having a plurality of pores, and a porous coating layer positioned on at least one surface of the porous polymer substrate and containing a plurality of inorganic particles and a binder polymer positioned on the whole or a part of the surface of the inorganic particles to connect the inorganic particles with one another and fix them; and a porous adhesive layer positioned on at least one surface of the separator base and including polyvinylidene-co-hexafluoropropylene containing vinylidene-derived repeating units and hexafluoropropylene-derived repeating units, wherein the ratio of the number of the hexafluoropropylene (HFP)-derived repeating units (HFP substitution ratio) based on the total number of the vinylidene-derived repeating units and the hexafluoropropylene-derived repeating units is 4.5-9%. An electrochemical device including the separator is also provided.

METHOD FOR SEALING SECONDARY BATTERY

Nº publicación: EP4600022A1 13/08/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: EP4600022A1

The present disclosure provides a method for sealing a secondary battery, which seals an electrode lead and a battery case of the secondary battery, the method comprising the steps of: providing a heater on a front surface of a sealer; providing the electrode lead between an upper sealer and a lower sealer contained in the sealer; heating the electrode lead with the heater; sealing the electrode lead and the battery case with the sealer; photographing the sealer around the heater with a camera disposed on a front surface of the heater to obtain shape information; measuring the temperature of the sealer around the heater with a temperature sensor to obtain temperature information; acquiring thermal expansion data according to the temperature of the sealer using the shape information, the temperature information, and the material information about the sealer; and measuring the temperature of the electrode lead with the temperature sensor and then predicting the thermal expansion value of the sealer at the electrode lead covered by the heater using the thermal expansion data.