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1369
resultados
Última actualización
21/08/2025 [07:15:00]
Resultados 650 a 675 de 1369
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.
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
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.
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.
Resumen de: EP4600680A1
A method for diagnosing a battery according to first aspect of the present disclosure diagnoses a battery assembly including a battery bank provided by connecting a plurality of battery cells in parallel with each other, and the method includes a differential battery bank profile generating step of generating a differential battery bank profile representing a relationship between a differential capacity, which is obtained by differentiating a capacity of the battery bank with respect to a voltage of the battery bank, and the voltage of the battery bank; and a diagnosing step of diagnosing a state of the battery bank based on a difference value between a differential capacity value of a target peak located in a predetermined voltage section among a plurality of peaks of the differential battery bank profile and a differential capacity value of a valley adjacent to the target peak.
Resumen de: EP4601066A1
Embodiments of this application provide an electrolyte solution, a battery containing the same, and a power consuming apparatus. The electrolyte solution includes: a first additive, where the first additive includes at least one of compounds represented by formula (I) and formula (II); and a second additive, where the second additive includes at least one of SO<sub>2</sub> and CO<sub>2</sub>. Cycle performance and service life of the battery containing the electrolyte solution are both improved.
Resumen de: EP4601039A1
A positive electrode active material, according to the present invention, is a positive electrode active material comprising a lithium nickel-based oxide which is in the form of single particles comprising a single nodule, quasi-single particles which are composites of at most 30 nodules, or a combination thereof, wherein the positive electrode active material has a D<sub>90</sub> of 8.0 µm to 11.5 µm, and a negative skewness factor (NSF) expressed by formula 1 below of 0.20 to 0.35. Formula 1 NSF = (D<sub>50</sub> - D<sub>10</sub>) / I<sub>max</sub>. In formula 1, D<sub>50</sub> is the particle diameter at the point where the cumulative volume is 50% on a volume cumulative particle size distribution graph of the positive electrode active material, D<sub>1o</sub> is the particle diameter at the point where the cumulative distribution is 10% on the volume cumulative particle size distribution graph of the positive electrode active material, and I<sub>max</sub> is the maximum volume fraction on the volume cumulative particle size distribution graph of the positive electrode active material.
Resumen de: EP4601069A1
An electrode assembly according to an embodiment of the present invention may be provided by alternately stacking elenglisctrodes and separators in a predetermined stacking direction, wherein, when an electrode, which is disposed at the outermost side, of the electrodes is defined as the outermost electrode, and a separator, which is disposed at the outermost side, of the separators is defined as the outermost separator, a distal end portion of the outermost separator may be provided to press a distal end portion of the outermost electrode inward in the stacking direction.
Resumen de: EP4601070A1
The present application relates to the technical field of material technology, more particularly to a cathode lithium-supplementing additive, a preparation method thereof, a lithium-rich cathode, and a secondary battery. The cathode lithium-supplementing additive includes: a lithium-rich iron-based material and a passivation material in situ bonded to an outer surface of the lithium-rich iron-based material; a chemical formula of the passivation material is aLi2O·bFexOy, 1≤x≤3, 1≤y≤4, 0.0001≤a≤0.01, 0.0001≤b≤0.01. The lithium-rich iron-based cathode lithium-supplementing additive of the present application has a good lithium-supplementing effect on the cathode material, and can timely supplement the loss of lithium ions in the material during the charge and discharge cycle. In addition, the passivation material can effectively prevent the interface from reacting with water and carbon dioxide in the environment to form excessive residual alkali, improve the moisture resistance and processing performance of the lithium-supplementing material, improve the cycle performance of the cathode material, and improve the cycle performance of the battery and service life.
Resumen de: EP4600210A1
The present invention relates to a lithium silicon oxide exhibiting suppressed gas generation upon application to an aqueous slurry, a negative electrode including the same, and a lithium secondary battery including the negative electrode, and provides a lithium silicon oxide having peaks with 2θ being 23.8±0.5°, 24.3±0.5°, and 24.7±0.5° in an XRD pattern measured using non-monochromatized CuKα rays, and satisfying Mathematical Equation 1, a negative electrode including the same, and a lithium secondary battery including the negative electrode.
Resumen de: TW202423696A
A thermal-insulating electro-insulating coating system and a coated article. The thermal-insulating electro-insulating coating system comprises: (a) a first coating formed by a first coating composition, wherein the first coating remains intact after immersion in HF aqueous solution with a concentration of 20% for 168 hours; and (b) a second coating formed by a second coating composition applied on the first coating, wherein the second coating has a thermal conductivity of 0.1 W/m.K or less; wherein the coating system has a volume resistivity of greater than or equal to 1010 Omega.cm as measured at 25 DEG C after baking at 400 DEG C for 10 minutes. A coated article comprising the thermal-insulating electro-insulating coating system. The thermal-insulating electro-insulating coating system can provide excellent corrosion resistance, resistance to high temperature baking and excellent electrical insulation performance after high temperature baking.
Resumen de: EP4601061A1
Disclosed are a lithium-ion battery electrolyte, a lithium-ion battery and an electronic device. The electrolyte at least includes: a non-aqueous solvent, including a linear carboxylic acid ester solvent; a lithium salt, at least one of which contains sulfur; and an additive, including thiophene, and the content of the thiophene in the electrolyte is 0.1wt% to 3wt%.
Resumen de: EP4601077A1
A battery device includes a cell assembly, including a first battery cell and a second battery cell, stacked in a first direction. The first battery cell and the second battery cell respectively include a receiving portion in which an electrolyte and an electrode assembly are received within a case, and a plurality of extension portions protruding outwardly from the receiving portion in the first direction. The second battery cell is disposed to contact at least one of the extension portions of the first battery cell.
Resumen de: EP4601024A1
A secondary battery is provided. The secondary battery includes a cathode, an anode, and an electrolyte, wherein the electrolyte includes a fluorine-containing sulfonylimide lithium salt, and the content in percentage by mass of the fluorine-containing sulfonylimide lithium salt is L%, based on the total mass of the electrolyte; and the anode includes an anode active material and a solid electrolyte interface film on the surface of the anode active material, the anode has a compacted density of Y g/cm<3>, the solid electrolyte interface film has a thickness of M nm, and the anode active material has an OI value of N. The secondary battery satisfies: 2.5 ≤ 50LM+15Y+6N≤17. The secondary battery satisfying the defined relationship has excellent low-temperature performance and rate performance.
Resumen de: EP4601042A1
This application relates to a hard carbon material and a preparation method thereof, an electrochemical apparatus, and an electronic apparatus. The hard carbon material includes a porous skeleton, a first element, and element zinc, where the first element includes at least one of element nitrogen, element sulfur, element boron, element phosphorus or element selenium. A percentage of the first element with respect to a total mass of the hard carbon material is denoted by A1%, and a percentage of the element zinc with respect to the total mass of the hard carbon material is denoted by A2%, where the hard carbon material satisfies 1.5≤A1/A2≤5. When applied to an electrochemical apparatus, the hard carbon material in this application can significantly improve the energy density of the electrochemical apparatus.
Resumen de: TW202431690A
An electrode assembly includes unit cells stacked in a stacking direction, each including an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, the electrode structure extends in a longitudinal direction perpendicular to the stacking direction, an end portion of the electrode current collector extends past an outer surface of the electrode active material layer and the separator structure. The electrode assembly further includes an adhesive layer including a resistive polymeric material, and an electrode busbar attached to the end portions of the electrode current collectors through the adhesive layer. The adhesive layer is configured to adhere with the electrode busbar and the electrode current collectors below a transition temperature, and at least partially melt at or above the transition temperature to increase an electrical resistance between the electrode busbar and the electrode current collectors.
Resumen de: WO2024076987A1
A rechargeable battery cell can include an electrode having a plurality of three-dimensional channels defined therethrough, with at least 90% of three dimensional channels sized to have pores between 50 nanometers to 400 microns. An ion exchange material can be arranged to define an interface with at least a portion of the electrode. In some embodiments the electrode includes a zinc (Zn) containing anode and a cathode including at least one of nickel hydroxide (Ni (OH)2), nickel oxyhydroxide (NiOOH), manganese dioxide (Mn02), copper oxide, and bismuth oxide.
Resumen de: EP4600081A1
A temperature control method includes determining (S11) a target temperature regulating system operating normally among a plurality of temperature regulating systems, the temperature regulating system being configured to regulate the temperature of a battery pack, and the battery pack being configured to supply power to the temperature regulating system; determining (S12) a target control strategy matching a first state of the plurality of temperature regulating systems and a second state of a plurality of battery packs; and controlling (S13) the target temperature regulating system to regulate the temperature of the plurality of battery packs according to the target control strategy.
Resumen de: EP4600206A1
This disclosure provides a titanium doped anhydrous ferric phosphate material, a preparation method and a use thereof, which belongs to the technical field of preparation of ferric phosphate materials. The preparation method of the titanium doped anhydrous ferric phosphate material includes the following steps: providing a titanium containing ferrous sulfate raw material solution and a titanium free ferrous sulfate raw material solution; mixing the titanium containing ferrous sulfate raw material solution and the titanium free ferrous sulfate raw material solution to obtain a mixed solution; mixing the mixed solution with an oxidant and a phosphorus source to obtain a slurry containing ferric phosphate and titanium phosphate; and subjecting the slurry to aging, rinsing, drying, and sintering sequentially to obtain the titanium doped anhydrous ferric phosphate material. In this disclosure, the control in doping of titanium element in the titanium doped anhydrous ferric phosphate material can be achieve by adjusting the mixing ratio of the titanium containing ferrous sulfate raw material solution and the titanium free ferrous sulfate raw material solution, so that the content of titanium element in the final product is stable and controllable; the titanium doped anhydrous ferric phosphate material has a uniform nanoscale particle stacking morphology, which is conducive to the application of preparing battery materials.
Resumen de: WO2024076664A1
Disclosed herein is an apparatus comprising an electrode active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network and enmeshed in the network; and a surface treatment on the surface of the high aspect ratio carbon elements which promotes adhesion between the high aspect ratio carbon elements and the active material particles.
Resumen de: WO2024076553A2
A method of making substrates, such as grids, for assembly with lead-acid batteries is set forth herein. The grids can take the form of a strip of a multitude of serially-connected metal grids. The grids can ultimately be employed as positive electrodes or negative electrodes in a larger lead-acid battery assembly. Surfaces of the grids can be contacted with an aqueous solution, such as submergence in a bath thereof, as an example. The aqueous solution can comprise hydrogen peroxide.
Resumen de: WO2024076361A1
Electrolytes for improved electrochemical batteries are provided. A carbonate-based electrolyte can include a thioamide compound (e.g., thioacetamide (TAA), thiourea (THU), or thioformamide). The electrolyte can include a salt, a carbonate solvent, and the thioamide compound as an additive. The thioamide compound can be present in a concentration of, for example, 1 millimolar (mM) to 100 mM.
Resumen de: EP4601041A1
The present invention relates to: a copolymer composition comprising a first copolymer comprising an acrylic acid-based monomer unit and an acrylamide-based monomer unit, and a second copolymer comprising a vinyl pyrrolidone-based unit, an acrylate-based monomer unit comprising a hydroxyl group, and an acrylamide-based monomer unit; and a negative electrode slurry, a negative electrode, and a secondary battery comprising the copolymer composition.
Resumen de: EP4600279A1
The present invention relates to: a copolymer prepared by copolymerizing and hydrolyzing two or more monomers selected from the group consisting of an acrylonitrile-based monomer, an acrylate-based monomer, and an acrylic acid-based monomer with a vinyl acetate-based monomer; and a core-shell particle, a slurry composition, a separator, and a secondary battery which comprise same.
Nº publicación: EP4599488A1 13/08/2025
Solicitante:
FORM ENERGY INC [US]
Form Energy, Inc
Resumen de: TW202429736A
According to one aspect, an additive for an iron negative electrode of an alkaline electrochemical cell may include a powder of discrete granules including agglomerated particles, the agglomerated particles including at least one metal sulfide.
BOPI
Sede Electrónica
