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960
resultados
Última actualización
06/08/2025 [07:11:00]
Resultados 525 a 550 de 960
Resumen de: WO2025152103A1
A continuous recovery device and method for lithium ion battery positive electrode sheets. The recovery device comprises a conveying mechanism (1), a loading mechanism (2), a pulse mechanism (3), and an unloading mechanism (4); the conveying mechanism (1) comprises a conveying line (11) and a plurality of clamps (12), the plurality of clamps (12) are uniformly distributed on the conveying line (11) in the conveying direction of the conveying line (11), and the conveying line (11) is sequentially provided with a loading area (111), a pulse area (112), and an unloading area (113) in the conveying direction of the conveying line (11); the loading mechanism (2) is configured to install a positive electrode sheet to be processed into a clamp (12) in the loading area (111), each clamp (12) is configured to sequentially convey the corresponding positive electrode sheet from the loading area (111) to the unloading area (113) through the pulse area (112), and the pulse area (112) is located on the side of the conveying line (11) facing the ground; the pulse mechanism (3) comprises a first driving member (31) and a pulse member (32), the first driving member (31) is spaced apart from and arranged below the pulse area (112), and the first driving member (31) is transmittingly connected to the pulse member (32), so that the pulse member (32) abuts against the positive electrode sheet; and the unloading mechanism (4) is configured to unload aluminum foil separated from the positive electr
Resumen de: WO2025152136A1
The present disclosure provides an iron phosphate material, and a preparation method therefor and a use thereof. The method comprises the following steps: mixing a solution of a temperature-sensitive polymer having an upper critical solution temperature, a solution containing an iron source, and a solution containing a phosphorus source to obtain a mixed solution; carrying out gelation treatment on the mixed solution, then adding an alkali liquid, adjusting the pH value until the solution is acidic, and heating to obtain a precipitate; carrying out aging reaction on the precipitate together with a phosphoric acid solution to obtain a precursor material; and carrying out calcination treatment on the precursor material to obtain the iron phosphate material. In the present disclosure, by introducing the temperature-sensitive polymer, a thermo-responsive reversible sol-gel is prepared as a medium to fractionate and distribute the alkaline precipitant, so as to achieve uniform diffusion of the precipitant, avoid the problems of excess local concentration and poor product uniformity, and suppress movement of nanoparticles, thereby preventing agglomeration of iron phosphate particles.
Resumen de: WO2025152071A1
The present application relates to the technical field of battery material preparation, and discloses a lithium manganese iron phosphate positive electrode material, and a preparation method therefor and a use thereof. In the preparation method, a manganese iron hydroxide is used as a precursor to prepare a lithium manganese iron phosphate positive electrode material. A lithium manganese iron phosphate positive electrode material having a more uniform element distribution, a more stable structure, and better electrical performance can be obtained by means of conditional controls such as pre-sintering treatment. The present application has a simple process, a high element utilization rate and low costs, is environmentally-friendly and easy to realize large-scale industrial production, and has broad industrialization prospects.
Resumen de: WO2025152044A1
A surface modified hard carbon negative electrode material, a preparation method therefor and a use thereof, relating to the field of sodium ion batteries. The preparation method comprises mixing hard carbon powder, water, and a surface modifier to form a solid-liquid mixture, drying the solid-liquid mixture, and performing vacuum dehydration to obtain the surface modified hard carbon negative electrode material. The surface modifier is an organic compound containing both a carboxyl group and a carbonyl group. The carboxyl group in the surface modifier reacts with the hydroxyl group on the surface of a hard carbon negative electrode, so that the carbonyl group is accurately and uniformly insert into the surface of hard carbon. The introduced carbonyl groups can be used as active "anchoring points" in the electrolysis process to preferentially control and catalyze the decomposition of an inorganic salt and inhibit the excessive decomposition of an organic solvent, so that a uniformly distributed inorganic salt-rich SEI film is formed. The inorganic salt-rich SEI film is beneficial to the transmission of Na+ at an interface and maintenance of the structural stability of the SEI film, and finally the surface modified hard carbon negative electrode material having high first coulombic efficiency and excellent cycling stability is obtained.
Resumen de: US2025239660A1
A battery system includes: a battery pack including a plurality of battery cells, a battery management system monitoring and managing the battery pack, a power supply for supplying a voltage to the battery management system, and a wake-up circuit connected to a first CAN bus line and a second CAN bus line, and connecting the power supply and the battery management system to each other when a CAN bus voltage difference, which is a voltage difference between a first voltage of the first CAN bus line and a second voltage of the second CAN bus line, is greater than or equal to a predetermined threshold level.
Resumen de: US2025239588A1
A negative electrode for a secondary battery includes a current collector and a negative electrode active material layer provided on at least one surface of the current collector. The negative electrode active material layer includes a first region corresponding to 50% of a total thickness of the negative electrode active material layer from a surface facing the current collector and a second region corresponding to 50% of the total thickness of the negative electrode active material layer from a surface opposite to the surface facing the current collector. The negative electrode active material layer includes two or more types of negative electrode active materials having D50 different from each other and satisfies the Equations 1 and 2. A secondary battery including the negative electrode is also provided.
Resumen de: US2025237078A1
A tombstone audio device for enhancing memorializing a decedent at a tombstone includes a clamp that has a first jaw which is slidably engaged to a second jaw thereby facilitating the clamp to have an adjustable width. In this way the clamp can be attached to a tombstone. An audio unit is provided and the audio unit is integrated into the clamp. The audio unit stores a pre-recorded message comprising a eulogy of the decedent associated with the tombstone. The audio unit emits the pre-recorded message when the audio unit is actuated to facilitate a visitor of the tombstone to hear the eulogy.
Resumen de: US2025237435A1
A drying treatment apparatus includes: a housing having a charging port for charging crushed pieces, and a discharging port for discharging the crushed pieces; a screw conveyor including a screw blade provided in an internal space of the housing, and a driving device that drives the screw blade, the screw conveyor conveying the crushed pieces charged through the charging port to the discharging port using a pushing-out action of the screw blade; and a heater that heats the housing. In the drying treatment apparatus, the driving device drives the screw blade while the heater is heating the housing.
Resumen de: US2025237707A1
Methods and systems for estimating a battery parameter for a rechargeable battery. A sequence of a first zero current period, a first battery measurement of the first battery circuit, delivery of a known quantity of charge to the first battery circuit, a second zero current period, and a second battery measurement is performed. The known quantity of charge may be obtained from various sources. The battery parameter is estimated using an inverted open circuit voltage model, the first and second battery voltage measurements, and the known quantity of charge. The battery parameter may be a battery capacity and/or battery state of health.
Resumen de: US2025237618A1
An inspection device and an inspection system are provided. The inspection device includes a first conveying mechanism (10), a radiographic imaging inspection mechanism (20), a stacking mechanism (30), a second conveying mechanism (40) and a tomographic imaging inspection mechanism (50). The first conveying mechanism (10) is used to convey a battery cell. The radiographic imaging inspection mechanism (20) is used to inspects the battery cell. The stacking mechanism (30) is used to stack battery cells into a battery cell group. The second conveying mechanism (40) is used to convey the battery cell group. The tomographic inspection mechanism (50) is used to inspect the battery cell group.
Resumen de: US2025237633A1
The present invention is a multi-sensor that combines at least VOC and H2 detection into a single device. The sensor may also include additional features, such as: A technology that avoids drifting or a self-calibration mechanism that eliminates the need for in-field calibration; Optional dry contact and/or relay outputs to control external systems; Wired or wireless communication capabilities to connect to other systems, such as fire panels. The sensor can be used in a variety of stationary energy storage systems, including but not limited to: UPS systems; Energy storage systems; and Battery packs.
Resumen de: US2025237312A1
A housing has a housing hole shaped in a cylindrical form. A plurality of ports are arranged in an axial direction, a circumferential direction or a radial direction of a housing hole. At least one split rotor is arranged in the housing hole in the axial direction. A communication passage is formed in the at least one split rotor and is configured to switch between a communicating state and a blocking state between a predetermined one of the plurality of ports and another one of the plurality of ports. A shaft is configured to rotate the at least one split rotor around a central axis of the housing hole. A minute gap is formed between the at least one split rotor and an inner wall of the housing hole to enable minute movement of the at least one split rotor in the radial direction.
Resumen de: US2025237573A1
Proposed are a leak inspection apparatus for secondary battery cells and a leak inspection method for secondary battery cells and, more particularly, a leak inspection apparatus for secondary battery cells and a leak inspection method for secondary battery cells to determine whether leakage occurs in a secondary battery cell being inspected by creating a pressure difference between the inside of a casing of the secondary battery cell accommodated in a chamber part and the internal space of the chamber part and detecting swelling of the secondary battery cell.
Resumen de: US2025236959A1
An electrochemical method of recycling and regenerating transition metal oxides includes heating a mixture of salts to obtain a molten salt solution, and immersing a working electrode, a counter electrode and optionally a reference electrode into the molten salt solution, where the working electrode is electrically connected to a cathode material comprising a transition metal oxide. A voltage is applied to the working electrode, such that electrodissolution of the transition metal oxide occurs and an alkali metal species comprising lithium or sodium ions and a transition metal species comprising transition metal ions are produced in the molten salt solution. During application of the voltage and dissolution of the transition metal oxide, a regenerated transition metal oxide is concurrently electrochemically produced, e.g., in the form of a film or a powder.
Resumen de: US2025236705A1
The present disclosure is directed to microporous ladder polymers containing amine-functionalized monomer segments, amidoxime-functionalized monomer segments, or a combination thereof. Monomer compounds for preparation of the polymers are also described, as well as membranes and electrochemical cells containing the polymers.
Resumen de: US2025236537A1
A positive electrode material, a preparation method of same, a positive electrode plate, a secondary battery, and an electrical device are described. The positive electrode material includes a ternary positive electrode substrate and optionally a coating layer. The coating layer coats a surface of the ternary positive electrode substrate. The ternary positive electrode substrate includes Li, Ni, Al, and an M element. The M element includes a combination of one or more of Mn, Co, Ti, Zr, W, Nb, Mo, Si, Mg, B, Cr, or Ta. A volume-based particle size distribution curve of the positive electrode material is a bimodal curve.
Resumen de: US2025236574A1
Provided are a carbon fluoride modification method, modified carbon fluoride and a lithium/carbon fluoride battery. The modification method comprises: mixing carbon fluoride with a composite solvent, subjecting same to a modification treatment, and then performing solid-liquid separation, so as to obtain modified carbon fluoride, wherein the composite solvent comprises water and an ether solvent. The composite solvent is used to modify carbon fluoride; and under the synergistic effect of water and the ether solvent, unstable components in a carbon fluoride material can be removed by means of reaction, thereby improving the chemical stability of the carbon fluoride material and reducing side reactions of carbon fluoride with an electrolyte solution, and therefore the storage stability of a lithium/carbon fluoride battery is improved. The modification method is simple and feasible, does not need the step of pre-charging, and is easy to implement and suitable for large-scale production.
Resumen de: US2025236533A1
An oxide composite positive electrode material coated with copper oxide in-situ, a preparation method therefor, and an application thereof. The chemical general formula of the oxide composite positive electrode material coated with copper oxide in-situ is: γCuO—NaaCubMncMdO2+δ; in NaaCubMncMO2+δ, Cu, Mn and M together occupy a transition metal site in a crystal structure; M is an element introduced through doping to substitute for the transition metal site; and γCuO is a coating layer generated in-situ on the surface of NaaCubMncMdO2+β by the Cu element added in excess during a sintering process for preparing the oxide composite positive electrode material coated with copper oxide in-situ.
Resumen de: US2025236536A1
Provided is a positive electrode active material including core particles including zirconium-doped layered lithium nickel-manganese-aluminum-based composite oxide, wherein the core particle is a secondary particle formed by agglomerating a plurality of primary particles, an average particle diameter (D50) of the secondary particles is about 10 μm to about 25 μm, and in the zirconium-doped layered lithium nickel-manganese-aluminum-based composite oxide, a zirconium content is about 0.2 mol % to about 0.8 mol % based on 100 mol % of a total metal excluding lithium. The positive electrode active material according to some embodiments may maximize capacity, while minimizing a production cost, to ensure long cycle-life characteristics and improve high-voltage characteristics and high-temperature characteristics. If the positive electrode active material is applied to a rechargeable lithium battery, high initial charge/discharge capacity and efficiency may be achieved under high-voltage operating conditions, and long cycle-life characteristics may be realized under high-voltage and high-temperature conditions.
Resumen de: US2025236535A1
A metal oxide product for manufacturing a positive electrode active material for lithium-ion rechargeable batteries comprises one or more oxides of one or more metals M′, wherein M′ comprises:Ni in a content x between 20.0 mol % and 100.0 mol %, relative to M′,Co in a content y between 0.0 mol % and 60.0 mol %, relative to M′,Mn in a content z between 0.0 mol % and 80.0 mol %, relative to M′,D in a content a between 0.0 mol % and 5.0 mol %, relative to the total atomic content of M′, wherein D comprises at least one element of the group consisting of: Al, B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, Y, V, W, Zn, and Zr,wherein x+y+z+a=100.0 mol %,wherein the metal oxide product comprises secondary particles each comprising a plurality of primary particles.
Resumen de: US2025236528A1
This application provides a silicon-based negative electrode active material. The silicon-based negative electrode active material includes a silicate containing an alkali metal element. The silicon-based negative electrode active material contains both element S and element Mg.
Resumen de: US2025236209A1
An apparatus for performing vehicle-to-vehicle charging includes a charging cable having a fluid tube along which a cooling fluid flows configured to connect a vehicle equipped with a battery and a charging vehicle supplying electric power for charging the battery of the vehicle requiring a charge, a cooling device provided in the charging vehicle and configured to cool the cooling fluid, a heat supply device provided in the charging vehicle configured to supply heat to the cooling fluid, and a fluid regulation device configured to regulate the flow of the cooling fluid in such that the cooling fluid having been cooled by the cooling device or heated by the heat supply device in the charging vehicle is supplied to the vehicle requiring a charge along the fluid tube, in order to cool or increase the temperature of the battery of the vehicle requiring a charge using the cooling fluid.
Resumen de: US2025236165A1
A power storage device is a power storage device provided on a lower surface of a floor panel of a vehicle, the power storage device including: a housing case; a power storage module housed in the housing case; and a cooler housed in the housing case to cool the power storage module, wherein the housing case includes a bottom plate, a refrigerant passage through which a refrigerant flows is formed in a portion of the housing case, the portion being located above the bottom plate, and the refrigerant passage is connected to the cooler.
Resumen de: US2025235728A1
An energy storage system according to one or more embodiments of the present disclosure includes: a container; a plurality of accommodation portions in the container and configured to accommodate a battery rack or an air conditioner; a partition wall between each pair of adjacent accommodation portions; a ventilation hole passing through the partition wall and connecting with the adjacent accommodation portions; and a blocking member configured to selectively open or close the ventilation hole.
Nº publicación: US2025235727A1 24/07/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Resumen de: US2025235727A1
An energy storage system includes a battery module including a plurality of battery cells, a battery rack supporting the battery module, a detector configured to detect at least one of a change in temperature or a change in size of the battery module, and a fire extinguisher configured to spray a fire extinguishing agent on the battery module based on data detected from the detector.
BOPI
Sede Electrónica
