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1315
results.
Updated on
03/11/2025 [07:10:00]
Results 125 to 150 of 1315
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.
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.
Absstract of: US2025333306A1
The present invention relates to a method of preparing high-purity lithium sulfide through wet and dry processes. More particularly, the present invention provides a lithium sulfide preparation method including a wet process of reacting lithium hydroxide (LiOH) with hydrogen sulfide (H2S) gas in an organic solvent and a dry process of reacting a dried reaction product resulting from the wet process with hydrogen sulfide (H2S) gas. The lithium sulfide preparation method enables mass production of lithium sulfide.
Absstract of: US2025333326A1
A cathode lithium-supplementing material and preparation method and application thereof are provided. The cathode lithium-supplementing material includes the cathode lithium-supplementing material includes a lithium-containing core and a coating layer coated on a surface of the lithium-containing core, the material of the coating layer is selected from a semi-finished carbon layer containing hydroxyls. The provided coating layer, on the one hand, plays a role in isolating harmful components such as water and carbon dioxide in the air, thereby effectively ensuring the stability of the lithium-rich material contained in the cathode composite material layer; on the other hand, the coating layer is the semi-finished carbon layer containing hydroxyls, which has a partial conductivity function and can improve the conductivity of the cathode lithium-supplementing material; moreover, the semi-finished carbon layer containing hydroxyls has high toughness, which is conducive to completely coating the lithium-containing core, ensures the effect of isolating the cathode lithium supplementing material from water vapor during storage, thereby having stable performance and being beneficial for the widespread application.
Absstract of: US2025333317A1
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to the efficient and rapid synthesis of high-performance sodium ion electrolytes. The electrolytes have the general formula Nau+yNw−yMyLazCl3−vXv. The electrolytes possess superionic conductivity and display a low electronic conductivity, which ensures negligible electron transport contribution to the measured total conductivity and thereby enhancing safety when applied in energy storage devices. The synthesis of the electrolytes is significantly faster when compared to the synthesis of lithium electrolytes and the process can be scalable to produce large amounts of electrolytes.
Absstract of: US2025333328A1
Positive electrode active materials for a rechargeable battery, methods for preparing the same, and rechargeable lithium batteries including the same are disclosed. A positive electrode active material includes a first particle including a compound represented by Chemical Formula 1, and a second particle including a compound represented by Chemical Formula 2. Here, the Mn content (e.g., amount) of Chemical Formula 2 based on 100 mol % of transition metals of Chemical Formula 2 is 1 to 5 times the Mn content (e.g., amount) of Chemical Formula 1 based on 100 mol % of transition metals of Chemical Formula 1 (e.g., all metals excluding lithium).
Absstract of: US2025337040A1
The present disclosure relates to a battery assembly comprising: a case; a cell stack in which a plurality of battery cells are stacked and accommodated inside the case; and a heat dissipation pad disposed between the cell stack and the case and comprising a metal foam layer and at least one insulating layer.
Absstract of: US2025337036A1
A battery pack includes: prismatic battery cells arranged in two linear rows; a cooling plate disposed vertically below the battery cells; a thermal interface material disposed between the battery cells and the cooling plate; a thermal insulation material disposed at vertical bottoms of a linear space between the two linear rows of battery cells; a first cooling fluid channel that is configured to receive a cooling fluid, that extends linearly in the direction of the linear space, and that is disposed vertically above the thermal insulation material; and a second cooling fluid channel that is configured to receive the cooling fluid, that extends linearly in the direction of the linear space and parallel to the first cooling fluid channel, and that is disposed vertically above the thermal insulation material.
Absstract of: US2025337046A1
Immersion cooling systems are provided for managing thermal energy levels within a traction battery pack system. An exemplary immersion cooling system may include an injection shield arranged to subdivide an interior volume of a battery enclosure assembly into a first interior volume section and a second interior volume section. The injection shield may include a plurality of injection holes configured to spray a cooling fluid (e.g., a dielectric fluid) onto portions of a battery module that is housed within the second interior volume section. The immersion cooling system may additionally include a fluid manifold extending outside of the interior volume of the battery enclosure assembly, and one or more runner pipes that fluidly connect the fluid manifold to the second interior volume section. Together, the fluid manifold and the runner pipe may establish a dedicated vent gas exit flow path for expelling battery vent byproducts from the enclosure assembly during a battery thermal event.
Absstract of: US2025337262A1
A mobile battery manager for charging or discharging a stored battery system may include a converter, a resistive load, and a controller configured to charge or discharge the stored battery system to a desired state of charge determined at the mobile battery manager.
Absstract of: US2025337101A1
A method for producing a monocell for a planar battery, the monocell including a first and second electrode, each electrode having a coated metal foil portion and a non-coated metal tab, the coated foil portions and the tabs having a predefined position relative to each other, as well as a predefined shape and surface area, wherein the first electrode is sandwiched between two separator sheets attached to each other along an attachment lane running along the perimeter of the coated foil portion of the first electrode except at the position of the tab of the first electrode, so that the separator sheets form a pocket with the coated foil portion of the first electrode inserted therein and a portion of the tab of the first electrode extending out of the pocket, and wherein the second electrode is attached to the pocket.
Absstract of: US2025336949A1
A cathode active material for a lithium secondary battery according to the embodiments of the present disclosure includes composite particles including lithium-transition metal oxide particles, a carbon coating disposed on the lithium-transition metal oxide particles, and a carbon nanotube (CNT) coating formed on the carbon coating, wherein a content of the CNT coating measured through thermogravimetric analysis (TGA) is 0.8% by weight to 3.1% by weight based on the total weight of the composite particles.
Absstract of: US2025336945A1
A rechargeable lithium battery including a positive electrode, the positive electrode including a current collector, a first active material layer on the current collector, and a second active material layer on the first active material layer, wherein the first active material layer and the second active material layer each include a first particle, and the second active material layer further includes a second particle. The first particle is an olivine-based particle, and the second particle is a layered particle.
Absstract of: US2025337001A1
Some embodiments provide a secondary battery manufacturing equipment and secondary batteries manufactured using the same, in which tension of a separator may be maintained constant without compensating for the tension (e.g., with a separate device). When manufacturing an electrode assembly by stacking separators in a zigzag manner, the velocity of a driving roller and a final roller may be synchronized, so that the tension of the separator may be maintained constant without a separate separator tension compensation device. By controlling the design parameters of the secondary battery manufacturing equipment, the residual amount of the separators and the instantaneously required supply amount may be minimized and kept constant even if the size of the electrode assembly varies. Accordingly, there is no need for a separate tension compensation device or length compensation device to control the tension of the separator, thereby simplifying equipment and improving cell alignment precision during high-velocity stacking.
Absstract of: US2025336947A1
Disclosed are a positive electrode for a rechargeable lithium battery, the positive electrode 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 positive electrode active material layer includes a first positive electrode active material including a lithium transition metal composite oxide as secondary particles formed by agglomeration of a plurality of primary particles, and a second positive electrode active material including a lithium transition metal composite oxide as single particles. The second positive electrode active material layer includes a third positive electrode active material including a lithium transition metal composite oxide as secondary particles formed by agglomeration of a plurality of primary particles, and a fourth positive electrode active material including a lithium transition metal composite oxide as secondary particles.
Absstract of: US2025336946A1
A positive electrode active material, a method of preparing the same, a positive electrode including the same, and a rechargeable lithium battery including the positive electrode are provided. The positive electrode active material includes a lithium composite oxide, and a coating layer on a surface of the lithium composite oxide. The positive electrode active material further includes sodium (Na) and sulfur (S), wherein a mass fraction (S/Na) of the S to the Na is in a range of about 1 to about 3.
Absstract of: US2025333321A1
The present disclosure is directed to systems and methods of producing lithium carbonate. The lithium carbonate can be produced by contacting a lithium precursor with a carbon dioxide gas. The lithium carbonate produced from this method can include micron-sized lithium carbonate particles with nano-sized lithium carbonate particles coated on a surface of the micron-sized lithium carbonate particles.
Absstract of: US2025333315A1
The present disclosure relates to a negative electrode active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. The negative electrode active material for a rechargeable lithium battery includes a composite of silicon and amorphous carbon, and a closed pore increase rate according to Equation 1 is in a range of 20% to 100%.Closedporeincreaserate=(A-B)×100Equation1in Equation 1, A denotes a sum of an increase rate of closed pores and an increase rate of open pores of the negative electrode active material according to a first measurement method, and B denotes the increase rate of open pores of the negative electrode active material according to a second measurement method.
Absstract of: US2025333327A1
A positive electrode active material includes a first positive electrode active material including a first lithium cobalt-based oxide doped with aluminum and magnesium, and a second positive electrode active material including a second lithium cobalt-based oxide doped with aluminum and magnesium. An average particle diameter (D50) of the second positive electrode active material is less than an average particle diameter (D50) of the first positive electrode active material. The first positive electrode active material and the second positive electrode active material each include an aluminum coating layer on particle surfaces, with the aluminum coating layer of the first positive electrode active material being in a form of a shell that continuously surrounds the particle surfaces. An aluminum content based on 100 at % of cobalt and aluminum as measured by energy profiling energy dispersive spectroscopy (EP-EDS) on the surface of the first positive electrode active material is about 6 at % to about 10 at %.
Absstract of: US2025333320A1
The present disclosure is directed to systems and methods of producing lithium carbonate. The lithium carbonate can be produced by contacting a lithium precursor with a carbon dioxide gas. The lithium carbonate produced from this method can include micron-sized lithium carbonate particles with nano-sized lithium carbonate particles coated on a surface of the micron-sized lithium carbonate particles.
Absstract of: US2025333325A1
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to oxyhalide electrolytes and synthesis of oxyhalide electrolytes. The electrolytes have the general formula AzNv-yMyOX5-y, exhibit superionic conductivity, and can be produced via a relatively fast synthesis route. The electrolytes can be a component of different types of batteries or sensors for ion detection.
Absstract of: US2025337264A1
A driver circuit for a BMS and method are disclosed, comprising a series arrangement of at least a cell and at least a busbar, and comprising: a first and second voltage rail having a respective first and second terminals for connection to ends of one of the busbar and the cell; a power supply voltage rail, configured to operate at a voltage which is higher than the second voltage rail; a determination circuit, for detecting a lower of supply, LOS, being the one of the first and second voltage rail which is at a lower voltage, and drawing a first bias current from the power supply draw to the LOS; further analog circuit blocks drawing a second bias current from the power supply rail to the LOS; and a current sink circuit arrangement drawing the sum of the first and second bias currents, from the LOS to a ground.
Absstract of: US2025337256A1
A protective apparatus of an energy storage device includes a current breaker that interrupts a current of the energy storage device, and a control part. The control part calculates a cumulative value of times during which the current exceeds a current threshold, and executes current interruption processing of interrupting the current when the calculated cumulative value exceeds a cumulative threshold associated with the current threshold, and the control part counts, as the cumulative value, times during which the current continuously exceeds the current threshold, and in a case where the current falls from a state of exceeding the current threshold, the control part does not reset the cumulative value when a time during which the current is below the current threshold is equal to or shorter than a reset time.
Absstract of: US2025337302A1
A gas engine replacement device includes a housing, a battery receptacle coupled to the housing and configured to removably connect to a battery pack having a memory storing battery pack configuration data, a motor located within the housing, a power take-off shaft receiving torque from the motor and protruding from a side of the housing, a power switching network configured to selectively provide power from the battery pack to the motor, and a first electronic processor coupled to the power switching network and configured to control the power switching network to rotate the motor. The first electronic processor is configured to receive the battery pack configuration data responsive to a connection of the battery pack to the battery receptacle and control the power switching network based on the battery pack configuration data.
Nº publicación: US2025337254A1 30/10/2025
Applicant:
ENERGYWITH CO LTD [JP]
ENERGYWITH CO., LTD
Absstract of: US2025337254A1
A method of charging a battery pack is a method of charging a battery pack by charging, with one charger, a battery pack configured by connecting, in parallel, a plurality of storage batteries configured to store and release power, the method comprising: a detection step of detecting voltage and current values with respect to each of the storage batteries, which are connected in parallel; a determination step of determining whether or not a voltage detected for each of the storage batteries in the detecting step, is equal to or less than a first set voltage; and a charging step of charging the storage batteries, which are connected in parallel, wherein: in a first case, in which the voltages of all the storage batteries are determined to be equal to or less than the first set voltage in the determination step.
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