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1362
resultados
Última actualización
02/05/2026 [08:13:00]
Resultados 25 a 50 de 1362
Resumen de: US20260121196A1
An energy storage battery cabinet includes: a cabinet body and at least two battery cell layer groups. The cabinet body has a first direction, a second direction, and a third direction which are substantially orthogonal to each other. The at least two battery cell layer groups are disposed in the cabinet body along the third direction. Each of the at least two battery cell layer groups includes at least one battery cell in each of the first direction and the second direction. Two adjacent battery cell layer groups of the at least two battery cell layer groups in the third direction abut against each other.
Resumen de: US20260121034A1
A positive electrode active material, and a preparation method and a use thereof. The chemical formula of the positive electrode active material is Li1+aNaxPyNi0.5+bMn1.5+cMzOd, where −0.1≤a≤0.2, −0.2≤b≤0.2, −0.2≤c≤0.2, 3.8≤d≤4.3, 0
Resumen de: US20260121041A1
0000 A positive electrode material precursor and a preparation method thereof and an application thereof are provided. The positive electrode material precursor is a core-shell structure, including an inner core, an outer shell, and an intermediate layer provided between the inner core and the outer shell; where the inner core is formed by accumulating a first sheet-like material, and the first sheet-like material is formed by stacking a plurality of layers of a primary sheet-like material; the intermediate layer is formed by accumulating the primary sheet-like material; the outer shell is formed by accumulating a second sheet-like material, and the second sheet-like material is formed by stacking a plurality of layers of the primary sheet-like material; and a layer number of the layers of the primary sheet-like material in the second sheet-like material is less than that in the first sheet-like material.
Resumen de: US20260121068A1
An electrochemical device includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active material layer, and a second negative electrode active material layer, and the first negative electrode active material layer is located between the negative electrode current collector and the second negative electrode active material layer. The first negative electrode active material layer includes a first silicon-based material, the second negative electrode active material layer includes a second silicon-based material, Dv10 of the first silicon-based material is 3 μm to 10 μm, Dv10 of the second silicon-based material is 1 μm to 4 μm, and Dv10 refers to a particle size corresponding to a cumulative volume percentage of 10% in a volume-based particle size distribution starting from small particles.
Resumen de: US20260121061A1
A positive electrode active material that enables an increased discharge capacity retention rate of cycling performance is provided. A secondary battery includes a positive electrode pressed under a linear pressure higher than or equal to 100 kN/m and lower than or equal to 3000 kN/m and a negative electrode. When a test battery that includes the positive electrode and a negative electrode containing lithium undergoes, in an environment at higher than or equal to 25° C. and lower than or equal to 45° C., a cycling test of 50 repetitions of a cycle of charging and discharging in which, after constant current charging is performed at a charge rate of 0.5 C (1 C=200 mA/g) until a voltage of 4.7 V is reached, constant voltage charging is performed until the charge rate reaches 0.05 C at a voltage of 4.7 V, and then constant current discharging is performed at a discharge rate of 0.5 C until a voltage of 2.5 V is reached, and the discharge capacity of the battery is measured in each cycle, a discharge capacity value measured in the 50th cycle is greater than or equal to 35% and less than 100% of the maximum discharge capacity value in all the 50 cycles.
Resumen de: US20260121221A1
“electrode assembly having a porous electrically insulating material, and first and second endplates. The electrode assembly comprises opposing first and second longitudinal end surfaces separated along a stacking direction of an electrode and a counter electrode of the electrode assembly. First and second endplates are separated in the stacking direction and overlie the first and second longitudinal end surfaces.”
Resumen de: US20260121106A1
0000 Method for producing a solid-state secondary battery electrode, using PTFE, capable of reducing resistance of the electrode and achieving strength of a positive electrode mixture sheet, and a binder. Method for producing a solid-state secondary battery sheet, including (1) preparing a composition for producing a secondary battery sheet by using a binder that is a powder which comprises a polytetrafluoroethylene resin and a conductive aid homogeneously mixed and which is free of an active material, and (2) applying a shear force while mixing the composition for producing a secondary battery sheet to obtain an electrode mixture, wherein step (2) is carried out with a content of a solvent in the composition for producing a secondary battery sheet being 10% by mass or less.
Resumen de: US20260121022A1
An electrochemical device includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive active material layer. The positive active material layer includes a first powder and a second powder. After the electrochemical device is fully discharged, an X-ray diffraction pattern of the positive active material layer exhibits a first diffraction peak in a diffraction angle 2θ range of 17.3° to 19.3°, and exhibits a second diffraction peak in a 2θ range of 19.8° to 21.8°.
Resumen de: US20260121057A1
0000 Provided is a method for producing a secondary battery electrode, using PTFE, capable of reducing electrical resistance thereof and achieving excellent strength at the same time, and a binder. A method for producing a secondary battery electrode using a non-aqueous electrolytic solution, including step (1) of preparing a powder composition for producing an electrode by using a binder that is a powder which is composed of a composition essentially including a polytetrafluoroethylene resin and a conductive aid and which is free of an active material, and step (2) of applying a shear force while mixing the composition for producing an electrode to obtain an electrode mixture, wherein step (2) is carried out with a content of a solvent in the composition for producing an electrode being 10% by mass or less.
Resumen de: US20260121062A1
The present invention relates to a solid composite cathode material comprising a ceramic oxide electrolyte material and a lithium electrode material. It was found that the addition of lithium halide to the selected electrolyte and cathode materials strongly enhances the electrochemical performance.
Resumen de: WO2026085935A1
Disclosed in the present application are a composite laminated structure for a solid-state battery and a preparation method therefor. The composite laminated structure comprises a ceramic layer and a conductive layer which are arranged in a laminated manner, wherein the ceramic layer and the conductive layer form an integrated structure by means of a co-firing process; at least one of a film corresponding to the ceramic layer and a film corresponding to the conductive layer is formed by means of a tape casting technique; and the conductive layer comprises a negative electrode metal material and a phase material, the mass ratio of the phase material to the negative electrode metal material is (0-5):(95-100), and the melting point of the phase material is 300-1000°C.
Resumen de: US20260121140A1
A battery pack comprising a housing defining a volume. The battery pack includes a battery module arranged within the housing, where the battery module comprises a plurality of battery cells configured to provide an electrical output. The battery pack includes a first detector positioned within the battery module proximate to the plurality of battery cells, where the first detector is configured to detect a deformation of one of the plurality of battery cells to identify a potential thermal runaway.
Resumen de: US20260121128A1
In a circumference direction of a roll core of a battery cell of a battery, a positive electrode tab is electrically connected to a positive electrode plate at a first location, and a negative electrode tab is electrically connected to a negative electrode plate at a second location, where a winding end of the positive electrode plate extends beyond a winding end of the negative electrode plate, and the first location is any location at which the positive electrode plate extends beyond the winding end of the negative electrode plate. A part of the positive electrode plate between the second location and the first location is a positive electrode extension section, at least an inner surface of the positive electrode extension section is passivated, and the inner surface is a surface of a side that is of the positive electrode extension section and that faces the negative electrode plate.
Resumen de: US20260116674A1
A roll stacking device for secondary batteries according to the present embodiment comprises: an input conveyor for transferring cells; a discharge conveyor spaced apart from the input conveyor; and a roll module having rolls for stacking the cells transported by the input conveyor on the upper side of the discharge conveyor in a forward-backward direction, wherein the rolls include a roll body on which at least one cell seating portion is formed and an adsorption pad which is mounted on the roll body and adsorbs the cells.
Resumen de: US20260116775A1
The present disclosure provides a method for separating manganese in leaching of cobalt and/or nickel from delithiated solid raw material, the method comprising providing delithiated solid raw material comprising cobalt and/or nickel, providing5 acidic solution, combining the delithiated solid raw material with the acidic solution, allowing cobalt and/or nickel in the delithiated solid raw material to leach to obtain a leach solution comprising cobalt and/or nickel, providing manganese in the leach solution as the only reducing agent, and allowing the manganese to precipitate as manganese dioxide while the cobalt and/or nickel are dissolved. The present0 disclosure also provides use of delithiated solid raw material comprising cathode material in the method.
Resumen de: US20260121217A1
An energy storage container is proposed which comprises an exhaust air outlet and a feed device. The feed device is arranged to add a dilution fluid to the fire fluid flowing through the exhaust air outlet in the event of a fire.
Resumen de: US20260121029A1
0000 Anodes having high top layer sphericity may include a first active material layer including a plurality of first active material particles having a first particle sphericity and a first particle size layered onto and directly contacting a current collector, and a second active material layer including a plurality of second active material particles having a second particle sphericity and a second particle size layered onto and directly contacting the first layer. The second particle sphericity is greater than the first particle sphericity. In some examples, the second particle size is greater than the first particle size.
Resumen de: US20260121053A1
0000 The present invention relates to a binder for an anode for a secondary battery, an anode including the binder, and a secondary battery including the anode. More particularly, the present invention relates to a binder for an anode for a secondary battery that has excellent heat resistance and mechanical properties and an improved binding force because a copolymer is used for the binder, and an anode for a secondary battery. In addition, expansion and shrinkage of the anode may be efficiently suppressed, such that charge and discharge life characteristics and performance of the secondary battery may be improved.
Resumen de: US20260121064A1
An electrochemical device includes a positive electrode, a negative electrode, and an electrolyte; where the positive electrode includes a positive electrode active material layer, the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes a first positive electrode active material and a second positive electrode active material; after the electrochemical device is fully discharged, a Raman spectrum of the positive electrode active material layer has a first characteristic peak at a wavenumber ranging from 398 cm−1 to 408 cm−1 and a second characteristic peak at a wavenumber ranging from 940 cm−1 to 960 cm−1; and the second positive electrode active material includes element aluminum.
Resumen de: WO2026086319A1
The embodiments of the present invention relate to a negative electrode material, a preparation method therefor, and an application thereof. The preparation method comprises: in an inert atmosphere, introducing a mixed gas of a first silicon source gas, a nitrogen source gas, and a first protective gas into a chemical vapor deposition furnace, so that the first silicon source gas and the nitrogen source gas are subjected to chemical vapor deposition in a porous carbon matrix so as to obtain a first nitrogen-doped silicon-carbon composite material; introducing a mixed gas of a second silicon source gas and a second protective gas into a chemical vapor deposition furnace, so that the second silicon source gas is deposited in the first nitrogen-doped silicon-carbon composite material so as to obtain a second nitrogen-doped silicon-carbon composite material; repeating the above steps multiple times; in an inert atmosphere, introducing a mixed gas of a third protective gas and a carbon source gas into a chemical vapor deposition furnace, and performing passivation treatment on the second nitrogen-doped silicon-carbon composite material so as to obtain a passivated silicon-carbon composite material; and performing nitrogen-containing carbon coating on the passivated silicon-carbon composite material to form a nitrogen-doped carbon coating layer so as to obtain a negative electrode material.
Resumen de: WO2026086064A1
Provided in the present application are a lithium-ion battery, a positive electrode sheet, a positive electrode active material and a preparation method therefor, and an electrical apparatus. The lithium-ion battery comprises a positive electrode sheet, the positive electrode sheet comprising a positive electrode film layer, and the positive electrode film layer comprising a positive electrode active material; the positive electrode active material comprises a first lithium iron phosphate material and a second lithium iron phosphate material which are mixed with each other; the first and second lithium iron phosphate materials each contain a doping element, the doping element in each of the first and second lithium iron phosphate materials independently comprising a doping element M, and the doping element M being one or more selected from titanium, vanadium, niobium and magnesium, the difference value between the average mass content of the doping element M in the first lithium iron phosphate material and the average mass content of the doping element M in the second lithium iron phosphate material being 1000 ppm-8500 ppm, and the primary particle average size of the first lithium iron phosphate material being greater than the primary particle average size of the second lithium iron phosphate material. In this way, batteries can achieve both high energy density and high power performance.
Resumen de: US20260121042A1
Provided are a cathode active material and a preparation method thereof, a cathode plate, a battery, and an electrical device. The cathode active material includes a plurality of primary particles. The equivalent number N(003) of (003) crystallographic planes and the equivalent number N(104) of (104) crystallographic planes of the cathode active material satisfy: N(003)*N(104) ranges from 1*104 to 3*104;N(003)=D(003)d(003);andN(104)=D(104)d(104),where: D(003) is an average thickness of crystallites in the cathode active material perpendicular to the (003) crystallographic plane, in nm; d(003) is an interplanar spacing of the (003) crystallographic planes in the crystallites of the cathode active material, in nm; D(104) is an average thickness of the crystallites in the cathode active material perpendicular to the (104) crystallographic plane, in nm; and d(104) is an interplanar spacing of the (104) crystallographic planes in the crystallites of the cathode active material, in nm.
Resumen de: US20260121043A1
0000 Provided are a cathode active material and a preparation method thereof. The cathode active material is secondary particles. An equivalent number R<(003) >of (003) crystallographic planes of the cathode active material and an equivalent number R<(104) >of (104) crystallographic planes of the cathode active material satisfy that R<(104)>/R<(003) >ranges from 1.4 to 1.8, R<(003)>=A<(003)>/B<(003)>, and R<(104)>=A<(104)>/B<(104)>, where represents an average thickness of crystallites in the cathode active material in a direction perpendicular to the (003) crystallographic plane, in nm, B<(003) >represents an interplanar spacing of the (003) crystallographic planes in the crystallites of the cathode active material, in nm, A<(104) >represents an average thickness of the crystallites in the cathode active material in a direction perpendicular to the (104) crystallographic plane, in nm, and B<(104) >represents an interplanar spacing of the (104) crystallographic planes in the crystallites of the cathode active material, in nm.
Resumen de: US20260121258A1
A lead connection for coupling a first end of a lead to a post and a bushing of a battery is described. The lead connection includes a first weld that includes the bushing and the post welded to the bushing. The lead connection also includes a second weld. The second weld includes the first weld and the first end of the lead. At least a portion of the first weld is distributed around and over the first end of the lead to electrically couple first end of the lead to the bushing and the post.
Nº publicación: US20260121191A1 30/04/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD.
Resumen de: US20260121191A1
0000 Disclosed is a battery module having a reinforcement member to reinforce the mechanical strength of a module case. To achieve the above-described object, the battery module according to the present disclosure includes a plurality of secondary batteries arranged in at least one direction, a module case including a cover portion, a bottom portion and a side portion to form an internal space in which the plurality of secondary batteries is mounted, and a reinforcement member disposed in the module case and fixed to a lower surface of the cover portion and an upper surface of the bottom portion.
BOPI
Sede Electrónica
