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1525
results.
Updated on
12/09/2025 [07:43:00]
Results 800 to 825 of 1525
Absstract of: US2025279545A1
An electric power storage device includes a plurality of electric power storage units and a housing case. The electric power storage units are arranged in an X direction and laminated in the X direction. Lower surfaces of the electric power storage units are bonded to a lower case with an adhesive member. A protruding portion extending in the X direction is formed in an upper case. The protruding portion protrudes toward the lower case and abuts against an upper surface of the electric power storage units. As a result, the electric power storage units receive a load on the adhesive member side (lower case side) and are pressed down.
Absstract of: US2025279542A1
A separator, a method for preparing the same, and a secondary battery and an electrical device related the same are described. The separator includes a porous substrate and a coating disposed on at least one surface of the porous substrate, in which the coating includes a three-dimensional skeleton structure and fillers having a porous structure, and at least part of the fillers having the porous structure is filled into the three-dimensional skeleton structure.
Absstract of: US2025279544A1
A binder includes a bonding material particle. The bonding material particle includes a core and a shell. The core includes a crystalline polymer. The shell wraps at least a part of an outer surface of the core, and the shell includes an amorphous polymer.
Absstract of: US2025279543A1
The purpose of the present invention is to provide: a safer polyolefin microporous membrane; a storage device separator, storage device assembly kit, and storage device using the polyolefin microporous membrane; and a storage device. In one embodiment, the polyolefin microporous membrane comprises at least one of each of layer A and layer B, polyolefin contained in at least one of layer A and layer B has one or more types of functional groups, and a crosslinked structure is formed by (1) the functional groups undergoing condensation reactions with each other, (2) the functional group reacting with a chemical substance inside the storage device, or (3) the functional group reacting with a different type of functional group, after accommodation in the storage device.
Absstract of: US2025279546A1
A battery is provided. The battery includes a first electrode, a second electrode spaced apart from the first electrode, and a separator including a fiber disposed between the first electrode and the second electrode, the fiber including a core and a sheath at least partially surrounding the core, wherein the core of the fiber includes a phase change material, and wherein the sheath of the fiber includes a polymer material.
Absstract of: US2025279540A1
Provided are a separator for a lithium secondary battery, a lithium secondary battery including the same, and a method of preparing the separator for a lithium secondary battery. The separator for a lithium secondary battery includes: a substrate; a first layer disposed on a surface of the substrate and consisting of inorganic particles; and a second layer disposed on the first layer and consisting of polymer binder particles, wherein an average particle diameter of the inorganic particles is less than 300 nm, and an average particle diameter of the polymer binder particles is 200 nm to 500 nm. The separator, due to reduced surface roughness and improved packing density of the first layer consisting of the inorganic particles, may have a uniform coating. The lithium secondary battery including the separator may have improved adhesion between the separator and electrodes, and thus the lithium secondary battery may have improved bending strength.
Absstract of: US2025279667A1
A battery charging system can include each of a heating element, a heating fan, and a cooling fan located in an airflow path, and a controller configured to operate the heating mode when a battery is connected to the battery charging system and a sensed temperature of the battery is less than a predetermined low threshold. The controller can be configured to operate the heating mode by disconnecting a charging power from the battery, supplying a fan power to the heating fan to force air to flow along the airflow path, supplying a heat power to the heating element to emit heat into the airflow path, and disconnecting a cooling power from the cooling fan. In the heating mode, air flowing along the airflow path flows through the heating fan and enters the heating element, and subsequently exits the heating element and passes along the cooling fan.
Absstract of: US2025279518A1
An energy storage system is disclosed and includes: at least one battery pack; and one or more electrically conductive components each of which including one or more pre-ceramic polymer layers, where the one or more pre-ceramic polymer layers of each of the one or more electrically conductive components electrically insulate the one or more electrically conductive components from other electrically conductive components of the at least one battery pack.
Absstract of: US2025279534A1
The present disclosure relates to a battery cell comprising a case body accommodating an electrode assembly, a case cover covering at least one face of the case body which is open, and a vent notch portion formed by being recessed at at least one of one surface of the case body or one surface of the case cover. The vent notch portion includes a straight portion having a straight pattern, and a curved portion connected to the straight portion and having a curved pattern. A width of the straight portion is different from a width of the curved portion.
Absstract of: US2025279572A1
A battery management system (BMS) communication system includes a battery module including a housing and a plurality of battery cells in which a battery cell comprises a voltage sensing tab, a first printed circuit board (PCB) mounted on a side of the housing of the battery module and including a temperature sensor electrically connected to the voltage sensing tab of the battery cell to measure a temperature of the battery cell, and a second PCB stacked on a surface of the first PCB and including a cell sensing module electrically connected to the voltage sensing tab and the temperature sensor to exchange signals therewith, in which an antenna pattern module is mounted on a surface of the second PCB.
Absstract of: US2025276911A1
The present disclosure relates to a positive electrode active material and a recycling method thereof. In the positive electrode active material and a recycling method thereof, the positive electrode active material is at least one type selected from a lithium nickel oxide (LNO)-based positive electrode active material, a nickel-cobalt-manganese (NCM)-based positive electrode active material, a nickel-cobalt-aluminum (NCA)-based positive electrode active material and a nickel-cobalt-manganese-aluminum (NCMA)-based positive electrode active material, in which single particles are included, a content of F is about 5,700 mg/kg to 6,500 mg/kg, an a-axis lattice parameter measured by an XRD analysis is about 2.8753 Å to 2.8772 Å, a c-axis lattice parameter is about 14.243 Å to 14.255 Å, a cell volume is about 101.968 Å3 to 102.168 Å3 and a crystallite size is greater than about 130 nm and equal to or less than 136 nm.
Absstract of: US2025276913A1
The present application provides a positive electrode active material, a preparation method therefor, a secondary battery, and an electrical apparatus. The chemical formula of the positive electrode active material is LiaNixCoyM1−x−yO2, where M comprises one or more of Mn, Al, B, Zr, Sr, Y, Sb, W, Ti, Mg and Nb, 0.55≤x≤1.0, 0≤y≤0.45, 0.8≤a≤1.2, the positive electrode active material being a hollow structure, and the inner diameter d1 of the hollow structure being 0.3 μm-5 μm.
Absstract of: US2025276912A1
To provide: a range of gas mixture compositions that make it possible to hinder Li/Ni cation mixing and transition metal peroxidation; and a method for producing a nickel-rich cathode active material, comprising a firing process using the gas mixtures. The method for producing a nickel-rich cathode active material comprises a firing step, in which a cathode precursor containing at least a predetermined amount of nickel, and a metal oxide solid raw material containing lithium raw material, are fired in a reactor having an atmosphere comprising a gas mixture containing oxygen in the range of 94% by volume to 98% by volume. The oxygen content of the gas mixture is preferably 95% by volume to 97% by volume.
Absstract of: US2025276907A1
Embodiments described herein relate to recycling of spent lithium battery material. In some aspects, a method can include suspending a lithium source in a solvent containing an oxidation reagent to extract lithium, forming an extracted lithium solution, separating the extracted lithium solution from residual solids of a lithium source, purifying the extracted lithium solution by precipitating and filtering impurities, and precipitating the lithium in the purified lithium solution to generate lithium carbonate (Li2CO3). In some embodiments, the method can further include preprocessing the lithium source to improve kinetics of the lithium extraction. In some embodiments, the preprocessing can include a cutting or shredding step to downsize the lithium source. In some embodiments, the lithium source can include lithium-ion battery waste. In some embodiments, the oxidation reagent can include sodium persulfate (Na2S2O8), potassium persulfate (K2S2O8), ammonium persulfate (NH4)2S2O8, hydrogen peroxide (H2O2), ozone (O3), and/or nitrous oxide (N2O).
Absstract of: US2025279541A1
In one embodiment of the present invention, provided is a separator for a non-aqueous secondary battery, the separator including: a heat-resistant porous layer that contains an aromatic type resin and inorganic particles, and an adhesive layer that is provided on the heat-resistant porous layer, and that contains adhesive resin particles having a phenyl group-containing acrylic type resin, in which the adhesive resin particles having a phenyl group-containing acrylic type resin are adhered to the heat-resistant porous layer, and in which an average primary particle diameter of the inorganic particles is from 0.01 μm to less than 0.50 μm.
Absstract of: US2025279455A1
The electrochemical cell device includes a cell, a support body, and a fixing member. The cell has a first end and extends from the first end in a first direction. The support body supports one end portion of the cell including the first end. The fixing member is located between the cell and the support body and is in contact with a first surface of the cell along the first direction and a second direction intersecting the first direction. The first surface includes a contact area in contact with the fixing member and a non-contact area not in contact with the fixing member. The contact area has a second end on the first end side. A length in the first direction from the second end to the non-contact area on a side opposite to the first end is larger at a second part located at an end portion in the second direction than at a first part located at a center portion in the second direction.
Absstract of: US2025279538A1
The techniques described herein relate to a traction battery pack assembly, including an enclosure assembly that provides an interior area and a cell stack within the interior area. The cell stack includes a plurality of battery cells disposed along a cell stack axis. Each battery cell includes at least one terminal tab that projects outward from the cell stack axis. Further included is a cap and a plurality of fingers projecting from the cap. Each of the fingers is spaced-apart from one another to provide at least one slot that receives a portion of the at least one terminal tab. Each of the plurality of fingers is provided by a cartridge assembly. Each of the cartridge assemblies holds agents and is configured to release the agents in response to a thermal event proximate the respective cartridge assembly.
Absstract of: US2025279533A1
The present disclosure relates to a battery cell including a case including an opening formed in one surface and an opposing surface facing the opening, and accommodating an electrode assembly through the opening, a cap plate coupled to the case to close the opening, and a vent portion having a shape of a groove on the opposing surface, wherein a ten-point average roughness of a surface of the vent portion is greater than a ten-point average roughness of an area adjacent to the vent portion.
Absstract of: US2025279561A1
An electrode for a rechargeable battery is provided. The electrode includes a substrate having an electrode uncoated region and an electrode active region. An electrode tab is attached to the electrode uncoated region, and an active material layer is formed on the electrode active region. A tape is disposed between the electrode uncoated region and the electrode tab.
Absstract of: US2025279655A1
An apparatus for extending battery life includes a control objective map module configured to derive a mapping between a state of charge (“SOC”) of each battery unit of a plurality of battery units with respect to an average SOC of the battery units. A highest capacity battery unit has a highest discharge amount between a SOC maximum and a SOC minimum and a lowest capacity battery unit has a lowest discharge amount between the SOC maximum and the SOC minimum. Each battery unit is connected to a shared bus through a direct current (“DC”) to DC power converter. The control objective map provides a current reference for a battery unit of the plurality of battery units in relation to a common current of the shared bus. The current reference for the battery unit includes a reference current for the DC to DC power converter connected to the battery unit.
Absstract of: US2025279656A1
According to embodiments of the present invention, a battery management apparatus, located in a battery system allowing for an addition of one or more new batteries, may include at least one processor; and a memory configured to store instructions executed by the at least one processor. Here, the instructions may cause the at least one processor to:in response to the battery system switching to a mode for adding a new battery into the battery system, determine a target state of charge (SOC) which is determined based on the state of health (SOH) of at least one battery and an initial SOC of the new battery, wherein the battery is a pre-installed battery; control charging and discharging of the battery so that the SOC of the battery becomes the target SOC; and terminate the control of charging and discharging when the SOC of the battery reaches the target SOC.
Absstract of: US2025279664A1
An energy processing apparatus includes: a first battery, a second battery, a first bridge arm, a first inductor, and a controller. A positive electrode of the second battery is connected with a first end of each phase of the first bridge arm, and a negative electrode of the second battery is connected with a second end of each phase of the first bridge arm and a negative electrode of the first battery. A first end of each phase of the first inductor is connected with a midpoint of the corresponding first bridge arm, and a second end of each phase of the first inductor is connected with a positive electrode of the first battery. The controller is connected with each phase of the first bridge arm, and is configured to: in a first preset state, to control the first and the second batteries to be charged and discharged.
Absstract of: US2025278828A1
An object overlap detection apparatus includes one or more photographing units configured to photograph objects from multiple angles. A determining unit is configured to determine whether there are overlapping objects by analyzing an image obtained by photographing the objects in a vertical direction using the one or more photographing units. The determining unit is also configured to determine whether there are overlapping objects by analyzing an image obtained by photographing a side of using the one or more photographing units. A controller is configured to receive information indicating whether the objects overlap from the determination units and to control one or more of an alarm signal, an operation of the photographing units, and transport of the objects.
Absstract of: US2025278840A1
An edge detection apparatus and method according to embodiments of the present invention may acquire a first electrode image and a second electrode image with different brightness values in which a same electrode is captured, and detect final edges of an uncoated portion from the second electrode image based on pixel coordinate information of edges of the uncoated portion obtained from the first electrode image, thereby improving detection accuracy of edge detection.
Nº publicación: US2025276904A1 04/09/2025
Applicant:
CONTEMPORARY AMPEREX TECH HONG KONG LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
Absstract of: US2025276904A1
A silicon-based negative electrode active material comprises Si and MSiO3, where M comprises one or more alkaline earth metal elements. An XRD diffraction pattern of the silicon-based negative electrode active material has a first diffraction peak at a diffraction angle 2θ between 26° and 26.8° with a half peak width of βA, and a second diffraction peak at a diffraction angle 2θ between 31° and 32° with a half peak width of βB. The silicon-based negative electrode active material satisfies 1.5≤βA/βB≤ 5.0.
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