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1435
resultados
Última actualización
22/01/2026 [07:22:00]
Resultados 50 a 75 de 1435
Resumen de: EP4682997A1
This application provides a secondary battery and an electronic apparatus, where the secondary battery includes a packaging bag and an electrode assembly accommodated within the packaging bag. The electrode assembly includes a positive electrode plate and a negative electrode plate; where the positive electrode plate includes a positive electrode current collector, the positive electrode current collector including a first metal layer; and the negative electrode plate includes a negative electrode current collector, an elongation rate of the negative electrode current collector being 8% to 25%, and a tensile strength of the negative electrode current collector being 200 MPa to 450 MPa. When the elongation rate and tensile strength of the negative electrode current collector are within the above ranges, the debris generated by the negative electrode current collector is reduced when the secondary battery is subjected to an external impact, which can lower the probability of the negative electrode current collector debris acting as a short-circuit site and triggering the positive electrode current collector-negative electrode material layer short-circuit mode, thereby contributing to improving the safety performance of the secondary battery.
Resumen de: CN121039857A
The present technology relates to solid polymer electrolyte membranes comprising a heterogeneous mixture of at least two different polymers, one of which is a branched polyether having at least 3 branches. Methods for their manufacture, as well as electrochemical cells, batteries and electrochemical energy accumulators comprising them, and uses thereof are also described.
Resumen de: WO2024192311A1
The present disclosure is directed to a multi‐port battery pack charger. The charger includes at least two receptacles for coupling with and charging at least two battery packs. The charge includes at least two AC to DC power supplies for providing a DC charging current to charge the at least two battery packs. The charger also includes a bridge assembly circuit to enable the charger to share the charging current provided by the at least two power supplies amongst the at least two receptacles.
Resumen de: WO2024192215A1
Provided are new electrode constructions that allow for improved energy density and robust structure, optionally without the presence of surface cracks. The electrodes as provided include an electrode active material, the electrode active material optionally comprising carbon at 75 wt% or greater, a current collector optionally incorporated into said electrode active material, and a first fluid permeable sheet layer on or in a first surface of the electrode active material. The presence of the fluid permeable sheet layer as provided herein allows for manufacture of electrodes with high levels of active material without formation of flaws, optionally surface cracking, that interrupt the energy storage or delivery characteristics of the resulting electrode.
Resumen de: EP4682558A1
A battery management device includes: an interface that obtains voltage measurement values generated by measuring voltage from a battery at regular time intervals within a first time period; and a controller that: derives an average rate of change of the voltage measurement values during the first time period; compares the voltage measurement values with corresponding values according to the average rate of change to derive voltage difference values during the first time period; and determines whether an error exists in the voltage measurement values during the first time period based on the voltage difference values.
Resumen de: EP4682973A1
The present disclosure provides a method for detecting a defective cell. The method may include: charging a cell in a manner that the state of charge (SOC) of the cell falls within a reference range, obtaining first charge data including differential voltage information of a negative electrode of the cell while the cell is being charged, where the negative electrode includes graphite and silicon, calculating a charging parameter associated with the silicon of the negative electrode based on the first charge data, and determining whether the cell is defective based on the charging parameter associated with the silicon.
Resumen de: EP4683023A2
An electrode transfer table includes: a base plate; a support portion configured to protrude from the base plate in a vertical direction; and a sheet seating portion configured to protrude from an end of the support portion in a direction facing the base plate and on which an electrode sheet for forming a pair of electrodes may be arranged, wherein the sheet seating portion may include: a first sheet seating portion on which a first electrode of the electrode sheet may be seated; and a second sheet seating portion spaced apart from the first sheet seating portion with a gap therebetween and on which a second electrode of the electrode sheet may be seated.
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: CN120936854A
A system for testing thermal runaway in a battery cell includes a first layer of first dielectric material at least partially wrapping the battery cell, and a wire at least partially wrapping the first layer of first dielectric material. The system also includes a second layer of a second dielectric material at least partially wrapping the wire, and a power source configured to supply power to the wire. In one example, the first layer of the first dielectric material includes a polyimide film and the second layer of the second dielectric material includes mica. The system also includes a temperature sensor in contact with the first layer, the second layer, and/or the battery cell. The controller is to receive a temperature reading from the temperature sensor and to control power provided by the power source to the wire based at least in part on the temperature reading.
Resumen de: CN120958639A
A method includes forming a cooling plate including an electrically conductive material and having a plurality of openings, and applying a dielectric coating on the cooling plate. The method further includes placing the cooling plate in proximity to a metal sheet including one or more metals and exposing the cooling plate to moisture and/or water. In one example, a minimum lateral distance between the cooling plate and the metal plate is at most 0.5 inches. The method further includes applying a voltage across the cooling plate and the metal plate when the cooling plate is exposed to moisture and/or water, and measuring a leakage current through the cooling plate resulting therefrom. A thickness of the dielectric coating on an edge of an opening of the plurality of openings is at least 0.003 inches.
Resumen de: CN120957890A
A battery assembly includes a housing and a plurality of battery modules within the housing. Each battery module includes an array of battery cells, one or more first sensors configured to measure one or more first parameters of the corresponding battery module, and a first processor configured to receive sensing signals from the one or more first sensors of the corresponding battery module. One or more second sensors are located within the housing, but outside the battery module, and are configured to measure one or more second parameters of the battery assembly. A second processor within the housing is to receive data from each of the first processors and the one or more second sensors, and to transmit controller input data to a controller external to the battery assembly, the controller input data based on data received from the first processors and the one or more second sensors.
Resumen de: CN120882827A
Two-component thermally conductive adhesives with high conductivity filler loading are disclosed.
Resumen de: EP4682102A1
The present application belongs to the field of lithium battery technology, particularly relating to a preparation method for injected lithium manganese iron phosphate cathode material, electrodes, and lithium batteries. The method comprises: mixing, grinding, and drying lithium source, iron source, phosphorus source, and carbon source to obtain a lithium iron phosphate precursor; The lithium iron phosphate precursor is subjected to a first stage sintering and a second stage sintering in an inert gas atmosphere to obtain lithium iron phosphate material; The lithium iron phosphate material is processed into a flaky form, and manganese ions are implanted on both sides of the flaky lithium iron phosphate material in a preset vacuum degree environment to obtain lithium manganese iron phosphate cathode material.
Resumen de: EP4683071A1
The present application provides a battery and an electric apparatus capable of improving the structural performance of a mounting structure in the battery. The battery includes: a battery cell; a box, configured to accommodate the battery cell, where the box includes a first wall and a second wall that are oppositely arranged, the first wall and the second wall intersect with a first direction, a first cross beam is disposed between the first wall and the second wall, the first cross beam includes a third wall that intersects with the first direction and is close to the first wall, a gap is disposed between the third wall and the first wall, and the first cross beam is provided with a first through hole extending along the first direction; and a mounting structure, configured to at least partially pass through the first through hole and abut against the third wall in the gap.
Resumen de: EP4683039A2
A battery system (100) includes a unit cell (10) including a sulfide-based all-solid-state battery, a battery module (200) in which a plurality of the unit cells (10) is stacked between a pair of restraining members (31, 32), an intermediate plate (60) disposed between the stacked unit cells (10), a detection unit configured to detect a load applied to the intermediate plate (60), and an estimation unit (300) configured to estimate generation of hydrogen sulfide in the unit cell (10), based on a change in load applied to the intermediate plate (60).
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: WO2024236152A1
The invention relates to a battery housing (1) for receiving a plurality of battery components (3, 4), having a first battery housing component (10), a second battery housing component (20), and at least one battery component holder (30) which has a plurality of receiving cavities (31) for receiving the battery components (3, 4). Each of the receiving cavities (31) has an inner wall (311) which extends from a first opening (312) of the respective cavity (31) to a second opening (312) of the respective receiving cavity (31), and the at least one battery component holder (30) is sandwiched between the first battery housing component (10) and the second battery housing component (20) and is connected to each of the battery housing components such that the respective first openings (312) face the first battery housing component (10) and the respective second openings (313) face the second battery housing component (20). The inner walls (311) of the respective receiving cavities (31) each have at least one groove (40) which runs from the first opening (312) to the second opening (313) such that, when a battery component (3, 4) is inserted into the receiving cavity (31), a respective cooling fluid channel (50) is formed which runs from the first opening (312) of the receiving cavity (31) to the second opening (313) of the receiving cavity (31) and which is delimited by the groove (40) and the battery component (3, 4). The invention also relates to a battery (5) having a battery hou
Resumen de: CN120883433A
The invention relates to a membrane assembly comprising a rupture membrane and comprising at least one reinforcing frame, the reinforcing frame being connected to the rupture membrane, the reinforcing frame connected to the rupture membrane being designed to be inserted into a cell housing from the inside and to be connected to the cell housing from the outside by means of a thermal bonding method. The invention also relates to a method for connecting a rupture membrane to a battery cell housing, and to a battery cell having a membrane assembly.
Resumen de: WO2024192206A1
An indicating system apparatus (100) and a method (1000) for ground support equipment (104) for electric aircraft (108). The ground support equipment (104) may include a ground support module (132, 136, 140), configured to support operation of an electric aircraft (108), one or more housings (144a-c) may be configured to house the ground support module (132, 136, 140), a cable module (116a-c) configured to connect the ground support module (132, 136, 140) and the electric aircraft (108), an indicator (148a-c, 160a-c, 164a-c) configured to indicate informatic communication of the ground support module (132, 136, 140) and the cable module (116a-c) and a controller (152) communicatively connected to the ground support module (132, 136, 140) and the cable module (116a-c) and configured to control the indicator (148a-c, 160a-c, 164a-c).
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).
Nº publicación: EP4681269A1 21/01/2026
Solicitante:
KARLSRUHER INSTITUT FUER TECH KOERPERSCHAFT DES OEFFENTLICHEN RECHTS [DE]
Karlsruher Institut f\u00FCr Technologie, K\u00F6rperschaft des \u00F6ffentlichen Rechts
Resumen de: CN120917590A
The invention relates to an electrode assembly for arrangement in a battery and to a battery having such an electrode assembly, the electrode assembly (1) having at least two layers (10, 20), each of which is formed by a pair of electrodes, each of which has an elongated anode planar element (11, 21) and an associated elongated cathode planar element (12, 22), the anode surface element and the cathode surface element are spaced apart from each other by a separating layer (13, 23), and at least one of the anode surface element (11, 21) or the cathode surface element (12, 22) has a surface profile with a cutout (14, 24), the surface shape of the at least one anode planar element (11, 21) or the cathode planar element (12, 22) differs from the surface shape of the elongated associated second anode planar element (11, 21) or the cathode planar element (12, 22), wherein the electrode pair forms an asymmetric electrode pair.
BOPI
Sede Electrónica
