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1111
resultados
Última actualización
25/01/2026 [07:40:00]
Resultados 375 a 400 de 1111
Resumen de: EP4683035A1
This application discloses a charging method and apparatus, an electronic device, and a computer-readable storage medium, where the method includes: during a process of charging a secondary battery, charging the secondary battery with a first charging current until a SOC of the secondary battery reaches a preset value; and under a condition that the SOC of the secondary battery reaches the preset value, charging the secondary battery with a second charging current. A minimum value of the first charging current is greater than a maximum value of the second charging current. A positive electrode active material of the secondary battery includes LiMPO<sub>4</sub>, where M includes Mn and Fe elements.
Resumen de: EP4682971A1
A negative electrode for an energy storage device according to an aspect of the present invention includes a negative electrode active material layer containing natural graphite particles and a binder, wherein the natural graphite particles have an internal porosity of not greater than 2%, the natural graphite particles have an average particle diameter of not less than 6 µm and not greater than 10 µm, the binder in the negative electrode active material layer has a content of not less than 0.1% by mass and not greater than 2.0% by mass, the binder is particulate, and a ratio (B/A) of an average particle diameter B of the binder to an average particle diameter A of the natural graphite particles is not less than 0.015 and not greater than 0.0375.
Resumen de: EP4682998A1
A current collector, an electrode sheet and a battery. The current collector comprises: n non-conductive layers and n+1 conductive layers, wherein the n non-conductive layers and the n+1 conductive layers are alternately stacked, and the outermost layer is the conductive layer, n being an integer greater than 1; and each non-conductive layer comprises one non-conductive metal layer or a plurality of stacked non-conductive metal layers, and each conductive layer comprises at least one metal conductive layer. The current collector has high safety, low processing difficulty, low cost and a high yield.
Resumen de: EP4683017A1
Provided are a single-cell battery and a battery pack including a plurality of single-cell batteries. The single-cell battery includes a housing, a cell, a current collector plate and an end cover; where the housing is provided with an accommodation cavity and an opening communicating with the accommodation cavity; the housing includes an inner surface enclosing to form the accommodation cavity and an end surface connected to an edge of the inner surface and located at the opening; the cell is arranged in the accommodation cavity; the current collector plate is arranged in the accommodation cavity and includes a current collecting portion and a connecting portion connected with each other; the current collecting portion is electrically connected to the cell, and the connecting portion is connected to the end surface; the end cover seals the opening and is connected to a side of the connecting portion away from the end surface; the housing is welded with the connecting portion and the end cover at the end surface. In the present application, an edge of the housing at the opening, the connecting portion and the end cover are stacked and connected in sequence, and then the three can be welded together through one connection process.
Resumen de: EP4683078A1
A pressure relief structure includes a bottom plate (1). The bottom plate (1) is provided with exhaust channels (11). Two ends of each of the exhaust channels (11) are exhaust ports (12). A plurality of exhaust channels (11) are provided. The plurality of exhaust channels (11) are arranged side by side. At least one heat insulation cavity (17) is provided between adjacent two of the exhaust channels (11). The heat insulation cavity (17) is hollow. The exhaust channels (11) are provided with a plurality of cell pressure relief vents (13). The cell pressure relief vents (13) are provided corresponding to the cells (22).
Resumen de: EP4683092A1
This application provides a composite separator and a battery. In a first aspect, this application provides a composite separator, which includes a base film and an adhesive coating. The adhesive coating includes polyethylene wax particles and inorganic particles. The polyethylene wax particles can play a good adhesive role, prevent dimensional changes caused by release of internal stress, and improve the problem of wrinkling of the separator upon electrolyte injection. The inorganic particles play a supporting role. By adjusting the weight ratio and the size ratio of the polyethylene wax particles and the inorganic particles, and the weight of the polyethylene wax particles per unit area, the air permeability increase before and after providing the adhesive coating and the air permeability increase of the composite separator before and after hot pressing can be reduced on the basis of ensuring the adhesion force of the composite separator, and the electrical performance of the battery can be improved.
Resumen de: CN121039508A
A system and method related to estimating a battery state of health (SOH) and/or a battery state of charge (SOC) without a long charge-discharge cycle is provided. A test system uses a machine learning trained estimation model to provide an estimate of battery SOH or battery SOC based on battery test results for specific battery characteristics based on battery chemistry. Once the battery chemistry is entered, the test system automatically applies a test to the battery and calculates a value for a particular characteristic based on the test results. The trained estimation model then estimates a battery SOH or battery SOC using the values of the particular characteristics. The system is a data-based driven method that estimates a battery state of health and/or a battery state of charge based on selection of particular characteristics (or parameters), and correlates values of these characteristics with the battery state of health and/or the battery state of charge.
Resumen de: EP4682565A1
Disclosed is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a processor configured to control a stimulation application device to intermittently apply a second electric stimulation greater than a first electric stimulation to a target cell during a state change period, and a communication unit configured to obtain current time series data during the state change period and voltage time series data representing a change history of a full-cell voltage of the target cell during rest periods of the second electric stimulation given in the state change period. The processor generates a measurement full-cell profile based on the current time series data and the voltage time series data, and analyzes the measurement full-cell profile to estimate a negative electrode scale factor.
Resumen de: EP4682972A1
This disclosure relates to the field of battery technologies and discloses a battery, a preparation method thereof, and an electric apparatus. The battery includes a positive electrode plate, a negative electrode plate, and a separator. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer located on at least one side of the negative electrode current collector. The negative electrode active material layer includes a negative electrode active material. The negative electrode active material includes graphite. A quantity proportion of secondary particles in the negative electrode active material is greater than or equal to 65%; an oil absorption value of the negative electrode active material is 40 mL/100g to 65 mL/100g; and a particle size by volume D<sub>v</sub>1 of the negative electrode active material is 4 µm to 8 µm.
Resumen de: EP4683037A1
A method for charging a battery according to an embodiment of the present disclosure is a method for charging a battery by dividing a charging section into a plurality of charging sections, and includes a first charging step for charging the battery in an nth (n is a natural number) charging section; a first rest step having a rest period for a first time after the first charging step is terminated; a second charging step for charging the battery in an n+1th charging section; and a second rest step having a rest period for a second time after the n+1th charging section is terminated.
Resumen de: EP4683046A1
The present disclosure provides a temperature control device and a control method for the temperature control device and a computer storage medium. The control method includes: determining that a first predetermined condition is satisfied, controlling a main refrigerant path to be in communication with a second refrigerant branch, to enable a heat accumulator to store energy; obtaining an outlet water temperature of a main heat transfer path; and based on the outlet water temperature being less than a first set value and determining that a second predetermined condition is satisfied, controlling the main heat transfer path to be in communication with a second heat transfer branch, to enable the heat accumulator to release heat. According to the control method of the present disclosure, a refrigerant system is controlled to operate, and the main refrigerant path is controlled to be in communication with the second refrigerant branch, to store heat in the heat accumulator. When a battery pack has a heating demand, that is, when the outlet water temperature of the main heat transfer path is less than a first determined temperature, the main heat transfer path is controlled to be in communication with the second heat transfer branch. This allows the heat stored in the heat accumulator to be transferred to the battery pack through the second heat transfer branch and the main heat transfer path, to compensate for insufficient heating at an initial start-up stage of a compressor and
Resumen de: EP4683074A1
A battery pack P includes a battery module M including two end plates 1 and at least one battery cell C that is arranged between the two end plates 1, and a case 2 that houses the battery module M and includes a bottom wall 3 to which the two end plates 1 are fixed. inside the case, at least a fixing part 4 fixing the bottom wall 3 and one end plate 1 of the two end plates is covered with an insulator 5, 6 having waterproof and electrical insulation properties. The battery pack P according to the above configuration, if water enters the case 2, prevents the creation of a short circuit due to ionic conduction in water.
Resumen de: CN120814139A
Techniques and apparatus for providing battery protection. One example technique for providing battery protection generally includes monitoring (502) a voltage of a battery node during a shutdown mode of a device having a battery coupled to the battery node; determining (504) that the voltage of the battery node is below a first threshold voltage; and disconnecting a path between the battery node and a power supply node of the device in response to the determination (506).
Resumen de: CN121002666A
Provided is an electrode comprising: a base body; an electrode composite layer on the substrate; and an insulator layer on the electrode composite layer. The insulator layer includes: a porous layer on the electrode composite layer and having a skeleton and voids; and a particle layer that is on the porous layer and contains particles. The melting point (Tma) or the glass transition temperature (Tga) of the particles is higher than the melting point (Tmb) or the glass transition temperature (Tgb) of the porous layer. The volume average particle diameter (nm) of the particles is greater than the average diameter (nm) of the voids.
Resumen de: US2024306729A1
An aerosol provision device is provided having a power source including a first temperature sensor, processing circuitry including a second temperature sensor, and a use sensor including a third temperature sensor. A temperature of the aerosol provision device may be determined based on at least two of: the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor, and the temperature measures by the third temperature sensor, and at least one device function may be controlled based on the determined temperature of the aerosol provision device, and at least one threshold temperature.
Resumen de: CN120787387A
The invention relates to a temperature control device for a battery system, comprising a main body (1) and a plurality of support sleeves (2) arranged in a flow channel (4) for battery cells (3), a wall section (8) of the main body (1) being penetrated by receiving openings (7) leading into the support sleeves (2). In order to create a temperature control device of the aforementioned type having an integrated cooling fluid flow channel in such a way that the temperature control device can be produced as lightweight, simply and inexpensively as possible and can simply measure the electrical power of the battery cells (3), it is proposed that the support sleeve (2) is formed from a wall section (8) of the main body (1).
Resumen de: CN120917574A
Disclosed herein is an anode comprising a current collector; an anode active layer disposed on the current collector, wherein the anode active layer includes anode active particles, an anode conductive material, and an anode binder; wherein the anode binder comprises a copolymer comprising a first repeating unit and a second repeating unit; wherein the first repeating unit is derived from the polymerization of a first monomer comprising an ether bond or comprising a plurality of hydroxyl groups, and wherein the second repeating unit is derived from the polymerization of an ethylenically unsaturated monomer comprising a hydrophilic pendant group.
Resumen de: WO2024199701A1
The present invention concerns a three-dimensional (3D) network of metal fibers comprising a plurality of metal fibers and a metallic compound, an electrode having said three-dimensional (3D) network of metal fibers, a battery comprising said electrode, a filter having said three-dimensional (3D) network of metal fibers, a catalyst having said three-dimensional (3D) network of metal fibers, and a method of producing a three-dimensional (3D) network of metal fibers by electroless deposition.
Resumen de: EP4682110A1
The present invention relates to a positive electrode active material, which includes a single particle type lithium nickel-based oxide including nickel, cobalt and manganese, having an amount of nickel among total metals excluding lithium of 90 mol% or more, and including 1 to 30 nodules, wherein D<sub>50</sub> is in a range of 5 µm to 7um, and a maximum value of heat flow, which is measured with a differential scanning calorimeter (DSC) while a coin-half cell prepared by using the positive electrode active material is charged to 4.25 V and then heated from room temperature to 380°C at a heating rate of 10°C/min, is 15.0 W/g or less, and a preparation method thereof.
Resumen de: EP4682978A1
The present invention provides a positive electrode active material including a lithium composite transition metal oxide containing nickel, cobalt, manganese, and aluminum, wherein an amount of nickel among metal other than lithium in the lithium composite transition metal oxide is 90 mol% or greater, and a molar ratio Al/Ni of aluminum to nickel is 0.015 to 0.034, and the present invention provides a positive electrode and a lithium secondary battery including the positive electrode active material.
Resumen de: EP4682977A1
The present invention provides a positive electrode active material, and a positive electrode, a positive electrode slurry, and a lithium secondary battery including the positive electrode active material, wherein the positive electrode active material includes a lithium nickel-based oxide including nickel, cobalt, and manganese and having a nickel content of 90 mol% or greater among metals excluding lithium, and a metal element M1 doped on the lithium nickel-based oxide, wherein the metal element M1 is one or more selected from the group consisting of Al, Ti, Zr, W, Mo, and Nb, and wherein the positive electrode active material has an absolute value of zeta potential measured at room temperature is 30 mV or greater.
Resumen de: EP4683020A1
A secondary battery including a case having a bottom surface, the bottom surface including a recessed portion and a non-recessed portion, the recessed portion being recessed into an interior of the case, and the non-recessed portion being flat, and an upper surface facing the bottom surfaces, the upper surfaces including a cap assembly, and an electrode assembly accommodated in the case.
Resumen de: EP4682912A1
Provided are a method for treating a sulfur-atom-containing material including bringing at least one sulfur-atom-containing material selected from a raw material containing a sulfur atom, an electrolyte precursor containing a sulfur atom, and a sulfide solid electrolyte into contact with a liquid base oil, and bringing the resulting inclusion containing the sulfur-atom-containing material and the liquid base oil into contact with an alkaline aqueous solution, which can safely and effectively cope with the occurrence of leakage of the sulfur-atom-containing material such as a raw material, an intermediate, and a product containing a sulfur atom; an apparatus for producing the sulfur-atom-containing material; and a device and a container for transporting the sulfur-atom-containing material.
Resumen de: EP4682970A1
Provided is an all-solid-state secondary battery having a high capacity and excellent heat resistance, and a positive electrode for constituting the all-solid-state secondary battery. The all-solid-state secondary battery according to the present invention is related to Goals 3, 7, 11, and 12 of the SDGs.The positive electrode for an all-solid-state secondary battery according to the present invention contains a positive electrode active material and a sulfide-based solid electrolyte, and at least a portion of the surface of the positive electrode active material is coated with a coating layer having a composition that contains a compound containing a P-O bond and a compound containing a B-O bond. Also, an all-solid-state secondary battery according to the present invention includes: at least one electrode body in which a negative electrode and a positive electrode face each other with a solid electrolyte layer interposed between the negative electrode and the positive electrode, and the positive electrode is the positive electrode for an all-solid-state secondary battery according to the present invention.
Nº publicación: EP4683068A1 21/01/2026
Solicitante:
PANASONIC ENERGY CO LTD [JP]
Panasonic Energy Co., Ltd
Resumen de: EP4683068A1
Provided is an electrical device with improved appearance of a label adhered to an outer case. The electrical device includes an outer case 2 made of resin, a label 4 adhered to an adhesion region 3 provided on a surface of the outer case 2, and a heat-generating member 5 stored in the outer case 2. The adhesion region 3 includes a plurality of grooves 31 extending in one direction.
BOPI
Sede Electrónica
