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1315
results.
Updated on
04/11/2025 [07:11:00]
Results 150 to 175 of 1315
Absstract of: US2025336926A1
Disclosed are a positive electrode active material for a rechargeable battery, positive electrodes including the positive electrode active material, and recharageable lithum batteries including the positive electrode active material. The positive electrode active material comprises first particles having an olivine structure, second particles having a spinel structure, third particles having a layered structure and fourth particles. A weight ratio of the fourth particles is about 0.5 wt % to about 5 wt % based on a total weight of the positive electrode active material.
Absstract of: US2025336930A1
Disclosed are positive electrode active materials for a rechargeable lithium battery, methods for preparing the same, and rechargeable lithium batteries including the same. For example, the positive electrode active material includes first particles including a compound represented by Chemical Formula 1, and second particles including a compound represented by Chemical Formula 2. The first particles and the second particles are included in a weight ratio of about 80:20 to about 60:40.
Absstract of: US2025336924A1
A positive electrode active material for a rechargeable battery, a positive electrode including the positive electrode active material, and a rechargeable lithium battery including the positive electrode active material are provided. The positive electrode active material includes first particles including a compound of Chemical Formula 1 and having a first average particle diameter, and second particles including a compound of Chemical Formula 2 and having a second average particle diameter that is greater than the first average particle diameter. The content (e.g., amount) of the first particles is greater than the content (e.g., amount) of the second particles, and wherein the positive electrode active material includes manganese (Mn) and cobalt (Co), and a ratio of the Mn content (e.g., amount) to the Co content (e.g., amount) in the positive electrode active material is about 7:1 to about 12:1.
Absstract of: US2025336923A1
Disclosed are positive electrode active materials for a rechargeable lithium battery, positive electrodes including the positive electrode active materials, and rechargeable lithium batteries including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, and second particles comprising a compound having a spinel structure. The amount of the first particles is greater than the amount of the second particles.
Absstract of: US2025336925A1
Disclosed are positive electrode active materials for a rechargeable lithium battery, positive electrodes including the positive electrode active materials, and rechargeable lithum batteries including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, and second particles having a spinel structure. The amount of the first particles is greater than the amount of the second particles.
Absstract of: US2025336919A1
The present application relates to a positive electrode active materials for a rechargeable lithium battery, positive electrodes including the same, and rechargeable lithium batteries including the same. For example, the positive electrode active material includes first particles including a compound of Chemical Formula 1 and having a first average particle diameter, and second particles including a compound of Chemical Formula 2 and having a second average particle diameter that is greater than the first average particle diameter. The content of the first particles is greater than the content of the second particles.
Absstract of: US2025336921A1
Positive electrode active materials for a rechargeable lithium battery, positive electrodes including the same, and rechargeable lithium batteries including the same are provided. A positive electrode active material includes first particles including a compound represented by Chemical Formula 1 and having an olivine structure, second particles including a compound represented by Chemical Formula 2 and having a spinel structure and third particles including a compound of Chemical Formula 3 and having a layered structure. The first particles and the second particles constitute a main active material of the positive electrode active material, and a content of the main active material is about 95 parts by weight to about 99.5 parts by weight based on about 100 parts by weight of the positive electrode active material.
Absstract of: US2025337030A1
A battery energy storage system comprises: (i) a structure dimensioned to receive one or more battery modules, each battery module including one or more battery cells; (ii) an off-gas detector configured to obtain air samples adjacent at least one of the battery cells and to generate signals indicating whether off-gas is detected in each of the air samples, wherein the off-gas detector is mounted on a support of a motion system; and (iii) a controller in electrical communication with the off-gas detector and the motion system, the controller being configured to execute a program stored in the controller to: (i) move the off-gas detector adjacent the at least one of the battery cells, and (ii) receive the signals from the off-gas detector indicating whether off-gas is detected in each of the air samples.
Absstract of: US2025337033A1
A battery cell includes a shell, an electrode assembly and a detection sensor. The shell includes a wall portion, the wall portion being provided with a mounting hole in communication with inside and outside of the shell. The electrode assembly is accommodated inside the shell. The detection sensor includes a sampling module and an encapsulation housing configured to encapsulate the sampling module. At least part of the encapsulation housing is inserted into the mounting hole and blocks the mounting hole. The sampling module is configured to sample an environment inside the shell.
Absstract of: US2025337056A1
An electrochemical device includes at least one enclosure for a stack of sheets of electrochemical device forming material including at least one sheet of a first type of electrode, at least one sheet of a second type of electrode and at least one separator sheet between the sheets of the two types of electrodes, where the enclosure includes a number of pieces including a first piece and a second piece, which pieces are joined to each other using welding, hemming, crimping or punchcrimping for forming an interior volume that houses the stack.
Absstract of: US2025337031A1
A battery and an electric apparatus are provided. The battery includes: at least one battery pack, where each battery pack includes: a plurality of battery rows, each battery row includes a plurality of battery cells arranged along a first direction, electrical connection portions of two adjacent battery cells in each battery row are connected by a first electrical connection member, and the plurality of battery rows are arranged along a second direction; and an information collection member, where the information collection member is disposed on one side of the plurality of battery rows in a third direction, the third direction, the second direction, and the first direction are perpendicular to each other, and the information collection member is electrically connected to a plurality of first electrical connection members corresponding to at least two battery rows.
Absstract of: US2025336979A1
Embodiments of the present disclosure describe metal organic framework (MOF)-like composite material (MOFite) including a salicylaldehydate-based iron metal organic framework composition and graphite, a lithium-ion battery including a cathode and an anode including a salicylaldehydate-based iron metal organic framework composition and graphite, and a scalable synthesis methods for salicylaldehydate-based metal-organic frameworks (SA-MOFs), specifically Fe-Tp, and their applications in lithium-ion batteries (LIBs).
Absstract of: US2025336920A1
A positive electrode active material, a positive electrode including the positive electrode active material, and a rechargeable lithium battery including the positive electrode are provided. The positive electrode active material includes first particles comprising a compound of Lia1Fex1B1y1PO4-b1 and having an olivine structure, second particles comprising a compound of Lia2Mnx2C1y2O4-b2 and having a spinel structure and third particles comprising a compound of Lia3COx3D1y3O4-b3. The first particles and the second particles constitute a main active material, and the content (e.g., amount) of the main active material is about 95 parts by weight to about 99.5 parts by weight on the basis of about 100 parts by weight of the positive electrode active material.
Absstract of: US2025336172A1
The present disclosure relates to a welding position recognition apparatus for a battery assembly and a method using the same. The welding position recognition apparatus for the battery assembly according to embodiments of the present disclosure comprises a photographing unit spaced apart from the battery assembly to photograph a surface of the battery assembly including an area to be welded, a moving unit connected to the photographing unit and horizontally moving in parallel with the surface of the battery assembly, and a control unit controlling the photographing unit and the moving unit, wherein the control unit performs: first photographing of a portion of the surface of the battery assembly by the photographing unit to select a reference point, and second photographing of the surface of the battery assembly spaced apart from the reference point by a correction distance by the photographing unit.
Absstract of: US2025336918A1
Examples of the disclosure include a positive electrode active material for a rechargeable lithium battery, a positive electrode including the positive electrode active material, and a rechargeable lithium battery including the positive electrode active material. Examples of the disclosure include a positive electrode active material including a first particle containing a compound having a first average particle diameter, and a second particle containing a compound having a second average particle diameter larger than the first average particle diameter.
Absstract of: US2025336917A1
Examples of the disclosure include a positive electrode, a rechargeable lithium battery including the positive electrode, and a positive electrode for a rechargeable lithium battery including a current collector, a first active material layer on the current collector. The first active material layer includes a first particle, a second particle, a first binder, and a first conductive material, and a second active material layer on the first active material layer. The second active material layer includes a third particle, a second binder, and a second conductive material. The first particle contains an olivine structured compound, the second particle contains a layered compound, the third particle contains an olivine structured compound, the first active material layer and the second active material layer have a cobalt (Co) content that is less than about 100 ppm, the first particle includes a plurality of first primary particles aggregated together.
Absstract of: US2025336988A1
A cooling device (1) for a fuel cell vehicle (2) that includes a cab (21) and a chassis frame (22) and that drives a motor (24) for traveling with electric power of a fuel cell (23) includes a hydrogen gas reservoir (3) and a heat exchanger (4). The hydrogen gas reservoir (3) is installed on a rear side of the cab (21) and outside in a vehicle width direction (D2) of the chassis frame (22), and stores hydrogen gas to be supplied to the fuel cell (23). The heat exchanger (4) is installed outside in the vehicle width direction (D2) of the hydrogen gas reservoir (3) and along the hydrogen gas reservoir (3), and exchanges heat between outside air and coolant (41) configured to cool at least the fuel cell (23).
Absstract of: US2025336976A1
The present disclosure relates to an electrode (1) for a secondary lithium metal battery, the electrode comprises: a current collector (2), an anode metal layer (3) comprising lithium, and at least one graded metal alloy layer (4a,4b) that extends along one or more opposing faces of the anode metal layer. The graded metal alloy layer comprising a mixture of lithium and a further metal composition, whereby the concentration of lithium relative to the further metal composition decreases outwardly from the anode metal layer. The disclosure further relates to a battery comprising the electrode and a method of manufacturing.
Absstract of: US2025336975A1
An electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed, in which the nano-fibrillation of a fibrillable binder is promoted, and mechanical properties and electrical properties of a battery may be improved. An electrode includes a freestanding dry electrode film, and the freestanding dry electrode film includes an electrode active material, a binder, and a conductive additive, and the conductive additive includes a porous carbon black-based compound which has a specific surface area of 600 m2/g or more and exhibits a first maximum peak in a pore width range of 1 to 10 nm and a second maximum peak in a pore width range of 10 to 100 nm in a graph in which the x-axis represents the pore width and the y-axis represents a pore volume per unit weight of the porous carbon black-based compound.
Absstract of: US2025337013A1
The present disclosure relates to an electrolyte solution for a rechargeable lithium battery and a rechargeable lithium battery including the same, wherein the electrolyte solution includes a non-aqueous organic solvent, a lithium salt, a first additive and a second additive.
Absstract of: US2025336971A1
Provided are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and a negative electrode for a rechargeable lithium battery including a negative electrode current collector, and a negative electrode active material layer on the negative electrode current collector, wherein the negative electrode active material layer includes a first active material layer, a second active material layer, and a third active material layer, which are sequentially stacked on the negative electrode current collector, the negative electrode active material layer includes a conductive material, and the second active material layer further includes silicon-containing particles.
Absstract of: US2025336932A1
Provided are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and for example, a positive electrode for a rechargeable lithium battery, including a current collector, a first positive electrode active material layer on the current collector, and a second positive electrode active material layer on the first positive electrode active material layer. The first active material layer includes a first particle represented by Formula 1 and having the form of a single particle and a second particle represented by Formula 2, and the second positive electrode active material layer includes a third particle represented by Formula 3 and having the form of a secondary particle in which a plurality of primary particles are aggregated. The first particle is present in a greater content than the second particle.
Absstract of: US2025336914A1
A positive electrode includes a positive electrode active material containing a plurality of first particles and a plurality of second particles having an average particle diameter smaller than an average particle diameter of the plurality of first particles, and letting a resistance of the plurality of first particles be R1 and a resistance of the plurality of second particles be R2 as measured using a scanning spreading resistance microscope, a ratio (log R2/log R1) of logarithms of the resistance (R1) of the plurality of first particles and the resistance (R2) of the plurality of second particles is 1.25 or less.
Absstract of: US2025336911A1
According to an aspect of the present invention, there is provided a method for manufacturing a secondary battery, the method including: preparing an electrode assembly in which electrodes and a separator are alternately laminated, and an adhesive is applied to the surface of at least one among the electrodes and the separator, thereby allowing the electrodes and the separator to adhere to each other; accommodating the electrode assembly in a battery case; injecting a gel polymer electrolyte composition into the battery case to impregnate the electrode assembly with the gel polymer electrolyte composition; and curing the gel polymer electrolyte composition, wherein the adhesive includes a first oligomer compound, the separator includes a porous substrate and ceramic coating layers disposed on both surfaces of the porous substrate, the ceramic coating layers include 92-100 wt % (exclusive of 100) of inorganic particles and 0-8 wt % (exclusive of 0) of a binder, and the gel polymer electrolyte composition includes a lithium salt, an organic solvent, a polymerization initiator, and a second oligomer compound.
Nº publicación: US2025336916A1 30/10/2025
Applicant:
DENKA COMPANY LTD [JP]
Denka Company Limited
Absstract of: US2025336916A1
A positive electrode composition contains carbon black, a carbon nanotube, a binding material, and an active material. The carbon black has a hydrochloric acid liquid absorption amount of 30 mL/5 g or more. The carbon nanotube has an average diameter of 5 to 15 nm.
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