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1482
resultados
Última actualización
03/04/2026 [07:26:00]
Resultados 125 a 150 de 1482
Resumen de: US20260094825A1
This disclosure relates to a cathode for a lithium secondary battery and a lithium secondary battery including the same. According to one embodiment of the present disclosure, the cathode for a lithium secondary battery includes: a cathode current collector, and a first cathode active material layer and a second cathode active material layer sequentially stacked on one surface of the cathode current collector. The first cathode active material layer includes a first conductive material and a first cathode active material having a single-particle structure, or a mixture of the first cathode active material and a second cathode active material having a secondary-particle structure, and the second cathode active material layer includes a second conductive material and the second cathode active material, or a mixture of the first cathode active material and the second cathode active material.
Resumen de: US20260094867A1
A method for producing a sulfide solid electrolyte including an argyrodite-type crystal structure includes: pulverizing and mixing raw materials with a pulverizer to prepare an intermediate containing a glass component, wherein the raw materials include lithium, phosphorus, sulfur, and chlorine; and heat-treating the intermediate at 360 to 500° C. A molar ratio of the chlorine to the phosphorus, c (CIP), of the raw materials is greater than 1.0 and 1.9 or less.
Resumen de: US20260094863A1
A method for preparing an electrolyte and an electrolyte prepared by the preparation method are provided. The preparation method includes the steps of: (S1) preparing a solution comprising a polyethylene oxide(PEO)-based copolymer having crosslinkable functional groups and a ceramic compound; (S2) supplying a substrate to a transfer path by unwinding the substrate using an unwinder; (S3) forming a coating film by coating the solution on the substrate; (S4) forming a polymer film by transferring the substrate having the coating film formed thereon to a drying section and drying the same; (S5) forming an electrolyte layer by transferring the substrate having the polymer film to a vapor deposition section and vapor-depositing a polar compound on the polymer film; and (S6) winding and recovering the substrate including the electrolyte layer using a rewinder.
Resumen de: US20260094869A1
An electrolyte solution for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The electrolyte solution for the rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and additives including first to third additives.
Resumen de: US20260096052A1
A telecommunications cabinet can include a base cabinet structure, a front door, an air intake assembly, an exhaust damper, a series of batteries, a telecommunications unit, and a battery dehumidification system, with the front door, the air intake assembly, the exhaust damper, the batteries, the telecommunications unit, and the battery dehumidification system all carried on or in the base cabinet structure, as the case may be. The battery dehumidification system can include at least one fan and at least one of a thermostat and at least one environmental (temperature and/or humidity) sensor. The thermostat and/or one or more environmental sensors can generate a corresponding operational signal, the one or more corresponding operational signal configured to selectively control the operation of the one or more fans to selectively force at least a portion of the waste heat from the telecommunications unit towards the battery.
Resumen de: US20260091252A1
Disclosed is a composition which is applied to products or elements generating heat or having possibility of ignition or explosion during driving, storage and/or maintenance processes. The composition is capable of effectively responding to the heat, ignition, and explosion. For example, the composition is applied to an article comprising a plurality of the products or elements. The composition is capable of responding to abnormal heat generation, explosion, and ignition occurring in any one element or product, and capable of preventing or minimizing propagation of such heat generation, explosion, and ignition to other adjacent elements or products. The composition also exhibits excellent handleability and storage stability.
Resumen de: US20260094893A1
The present embodiments provide a battery cooling system with a configurable number of frames disposed between end plates that allows a coolant to flow between the battery cooling system to control a temperature of battery cells disposed in the battery cooling system. The end plates disposed on opposing ends of the system can include manifolds that allow the coolant to move through the end plates. Further, each frame can include a number of subframes to retain battery cells and allow the coolant to flow adjacent to the battery cells. A wet bus can be disposed in the frame and a dry bus disposed on an exterior of the frame can electrically connect the battery cells to exterior circuitry.
Resumen de: US20260094892A1
A prismatic battery assembly includes a cell, a heat dissipating element, and a layer of anisotropic material. The cell includes an enclosure having a first end, a second end, a side wall extending between the first end and the second end, and a terminal disposed at the first end. The heat dissipating element extends along the second end. The layer of anisotropic material extends in a direction parallel to the side wall and has a first level of thermal conductivity in the direction parallel to the side wall and a second level of thermal conductivity in a direction transverse to the side wall. The first level of thermal conductivity is greater than the second level of thermal conductivity. Heat generated within the enclosure of the cell is dissipated along the layer of anisotropic material in the direction parallel to the side wall and into the heat dissipating element.
Resumen de: US20260094888A1
Aspects of the subject disclosure relate to thermal runaway event detection system for enhanced safety integrity in battery systems. The system includes a first electronic control unit (ECU), a second ECU, a sensor, and a monitoring circuit configured to receive sensor data from the sensor and pass the sensor data to the first ECU and the second ECU. The second ECU is configured to receive the sensor data from the monitoring circuit, determine whether the sensor data indicates an occurrence of a thermal runaway event associated with a battery of a vehicle, in which the second ECU detects the thermal runaway event independent of the first ECU. The second ECU can generate an alert notification to a user of the vehicle based on a determination that the sensor data indicates an occurrence of a thermal runaway event to cause a remedial action associated with the thermal runaway event.
Resumen de: US20260094886A1
An apparatus for inspecting a pouch sealing thickness, the apparatus including a first confocal sensor unit configured to measure a first thickness of one of a side sealing and a tab sealing of a pouch battery cell, a second confocal sensor unit configured to measure a second thickness of the side sealing and the tab sealing of the pouch battery cell, resulting in two measured thicknesses, a transport unit configured to transport the pouch battery cell to the first confocal sensor unit and the second confocal sensor unit, and a control unit configured to determine whether the pouch battery cell has a sealing defect from the two measured thicknesses.
Resumen de: US20260094882A1
A lithium-ion battery includes a positive electrode plate, a negative electrode plate and a separator provided between the positive electrode plate and the negative electrode plate. The separator includes a base film; and the puncture force A of the separator, the thickness B of the base film, the puncture force C of the positive electrode current collector, the thickness D of the positive electrode current collector, the puncture force E of the negative electrode current collector and the thickness F of the negative electrode current collector satisfy a specific ratio, the contact between the positive electrode and the negative electrode under mechanical abuses can be reduced, thereby decreasing the formation of short circuit points, reducing heat generation, lowering the probability of thermal runaway, and improving the safety performance of the battery.
Resumen de: US20260094881A1
Disclosed are an electrolyte coating, a solid-state battery and an electrical device. The electrolyte coating is coated on the surface of a solid-state electrolyte. The solid-state electrolyte includes one or both of a sulfide electrolyte and a halide electrolyte, wherein the electrolyte coating is a copolymer of tridecafluorooctyl methacrylate and n-butyl methacrylate. By coating the electrolyte coating on the surface of the sulfide electrolyte and the halide electrolyte, the present disclosure significantly increases the stability thereof in the air (even with high humidity) on the premise of not substantially affecting the conductivity thereof.
Resumen de: US20260094857A1
An apparatus for manufacturing a secondary battery includes a roller configured to contact a substrate coated with a slurry for a secondary battery. The apparatus also includes a support structure rotatably supporting the roll. A cleaning part is provided with the support structure and adjustable between a position spaced from the roller and a position in which the cleaning part is in contact with the roller. The cleaning part is configured to remove contaminants from the roller when the cleaning part is in contact with the roller. A driving part is provided to drive the cleaning part, and a controller is provided to control the driving part.
Resumen de: US20260094890A1
A battery management system includes a battery monitoring unit configured to monitor a temperature and voltage of a battery and determine whether an abnormality occurs in the battery, a fire monitoring unit configured to detect an occurrence of a fire, and a chiller control unit configured to control a cooling temperature of a chiller according to results of monitoring by the battery monitoring unit and the fire monitoring unit. The chiller control unit is configured to reduce the cooling temperature of the chiller when the battery monitoring unit determines that the abnormality occurs. The chiller control unit is also configured such that, when the fire monitoring unit detects a fire, the chiller control unit operates the chiller at a lower cooling temperature than the reduced cooling temperature used when the abnormality occurs.
Resumen de: US20260094818A1
The negative electrode of the secondary battery includes a negative electrode current collector and a negative electrode active material layer that is supported by the negative electrode current collector and that contains a negative electrode active material. The negative electrode active material layer includes an upper layer and includes a lower layer. The negative electrode active material contains at least a graphite particle, and a Si-containing particle in which a carbon and a Si are compounded to be composite. A response area size of the negative electrode active material contained in the upper layer is smaller than a response area size of the negative electrode active material contained in the lower layer, and a Si amount of a first Si-containing particle contained in the upper layer is smaller than a Si amount of a second Si-containing particle contained in the lower layer.
Resumen de: US20260094927A1
An energy storage system includes a housing including an internal space accommodating one or more battery modules, and at least one open side, a first door and a second door arranged adjacent to each other at the at least one open side of the housing, a connection unit having a first end connected to the first door and a second end connected to the second door, and a sealing unit fastened to the connection unit and arranged between the first door and the second door.
Resumen de: US20260094901A1
Batteries having convoluted, freeform shapes. These batteries can have curved and twisted surfaces that are freeform and do not have a constant radius or degree of rotation. A stack of battery layers can undergo a two-step heat press. The first heat press can be applied to the battery layers in a limited, low-stress region. This heat-press step can help to reduce delamination during a second heat-press step. In this second heat-press step, some or all of the battery layers can be pressed into a freeform shape and heat can be applied. The battery layers can then be placed in an enclosure.
Resumen de: US20260094819A1
The present invention relates to a cobalt-free positive electrode active material having improved thermal stability and electrochemical properties, and a lithium secondary battery using the same.
Resumen de: US20260094904A1
A cap assembly for a secondary battery, includes: a cap plate seated on and coupled to an open end of a case accommodating an electrode assembly, the cap plate having a through-hole therethrough; a terminal plate electrically connected to the electrode assembly, and inserted into the through-hole of the cap plate; a first insulating member between the cap plate and the terminal plate to provide electrical insulation between the cap plate and the terminal plate; and a second insulating member at an outside of the first insulating member to provide electrical insulation between the cap plate and the terminal plate. 127002700.3
Resumen de: US20260094836A1
Disclosed are a positive electrode and a preparation method thereof and a battery. The positive electrode includes a current collector, an active material layer, and a conductive layer disposed between the current collector and the active material layer. The conductive layer includes an MXene material. Adding the MXene material in the conductive layer may elevate the conductive performance and stability of the battery, and may also strengthen the adhesion between the current collector and the active material layer, enhance the peel force of the positive electrode, and improve the long-term cycle stability of the battery. In addition, since the addition of the MXene material enhances the adhesion between the current collector and the active material layer, under the condition that the peel strength of the electrode sheet is ensured, the content of binder in the active material layer may be reduced.
Resumen de: US20260094872A1
Ternary electrolyte compositions are described, having a primary solvent, a mediating solvent, a diluent, and at least one lithium salt.
Resumen de: US20260094877A1
An electrode group includes a positive electrode and a negative electrode wound together with a separator. The positive electrode includes a band-shaped current collector having a long side and a short side, a positive mixture layer applied parallel to the long side, a non-coated portion without the mixture, and an insulating portion covering the interface between the coated and non-coated areas. The negative electrode also has a band-shaped current collector and a negative mixture layer applied parallel to its long side. The insulating portion includes a first region covering part of the non-coated area and a second region covering part of the positive mixture layer. An end of the negative mixture layer, which extends parallel to its long side, is positioned to face the second region of the insulating portion.
Resumen de: US20260094837A1
A conductive material dispersion includes a carbon-based conductive material, a main dispersant, an auxiliary dispersant, and a dispersion medium, wherein the main dispersant is a nitrile-based copolymer and the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one selected from the group consisting of a styrene unit and an alkylene unit.
Resumen de: US20260094835A1
Provided herein are dry process electrode films, and energy storage devices incorporating the same, including an elastic polymer binder. In some embodiments, the dry process electrode films are PTFE-free or comprise an insubstantial amount of PTFE. The electrode films exhibit improved mechanical and processing characteristics. Also provided are methods for processing such elastic polymer binders, and for incorporating the elastic polymer binders in electrode films.
Nº publicación: US20260094906A1 02/04/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Resumen de: US20260094906A1
A battery module includes a plurality of battery cells, with each of the battery cells including battery cell terminals and a battery cell vent. The battery module also includes reinforcement frame including a plurality of reinforcement frame connection vents in fluid communication with the battery cell vents and a reinforcement frame discharge vent in fluid communication with the reinforcement frame connection vents. A busbar module electrically connects the battery cell terminals.
BOPI
Sede Electrónica
