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738
resultados
Última actualización
02/11/2026 [10:25:00]
Resultados 125 a 150 de 738
Resumen de: US20260341828A1
A charging control apparatus controls charging of a secondary battery 1 that is performed by supplying power from a power source 3, and includes: a control unit 18 configured to control power supplied from the power source 3; and a resistance acquisition unit 17 configured to obtain an internal resistance 5 of the secondary battery 1. The power source 3 can change a charging current 6 and supply power to the secondary battery 1. The control unit 18 performs suppression control on the power source 3 such that the product of the charging current 6 and the internal resistance 5 is smaller than or equal to a predetermined threshold 8.
Resumen de: US20260336471A1
A determination apparatus determines, from a plurality of batteries 1, a battery 1 suitable for an application 4, and includes: an information acquisition unit 12 configured to acquire battery information 21 regarding the batteries 1; a degradation estimation unit 14 configured to estimate, for each of the batteries 1, per-cause degradation information 6 indicating a degradation state per degradation cause 7 from the battery information 21; an application input unit 15 configured to receive an input of the application 4; and a determination unit 17 configured to, based on the estimated per-cause degradation information 6 and the input application 4, determine a battery 1 suitable for the application 4 from the plurality of batteries 1 while considering a degree of influence of each degradation cause 7 on the application 4.
Resumen de: WO2026223444A1
Disclosed herein are a preparation method for and a use of a single-ion conductor composite binder. The binder is formed by composite modification of a copolymer of butyl acrylate and lithium 2-acrylamido-2-methylpropanesulfonate with polyisobutylene. The binder is mainly characterized in that first, the binder can be fully dissolved in toluene which is a nonpolar solvent, thereby solving the problem of incompatibility between conventional binders and a sulfide electrolyte; next, a unique molecular structure design enables the binder to have both excellent bonding performance and ionic conductivity and can significantly reduce interface impedance. Butyl acrylate flexible segments provide elastic support, and a strong chemical bond is formed between a sulfonate group of the lithium 2-acrylamido-2-methylpropanesulfonate and the surface of a sulfide particle, thereby enhancing the binding force to the electrolyte. The binder of the present disclosure has a simple preparation process and controllable cost, is suitable for large-scale production, and provides an important material solution for promoting the industrialization of sulfide all-solid-state batteries.
Resumen de: WO2026223745A1
The present application discloses a composite separator, a secondary battery, and an electric device. The secondary battery comprises the composite separator, a positive electrode active material layer located on one side of the composite separator, and a negative electrode active material layer located on the other side of the composite separator; the composite separator comprises a polymer layer and conductive structures located on two sides of the polymer layer; each conductive structure is provided with through holes; the porosity of the composite separator is 15-30%; and the average pore diameter of the polymer layer is 100 nm to 20 μm.
Resumen de: WO2026223420A1
Disclosed are a lithium-ion battery positive electrode material and a preparation method therefor, and a lithium-ion battery. The lithium-ion battery positive electrode material comprises a matrix and a coating layer; the matrix comprises a non-metal doping element and a metal doping element; the coating layer comprises lithium sulfate, a non-metal coating element, and a metal coating element; in the matrix, the non-metal doping element is derived from a non-metal sulfide dopant, and the metal doping element is derived from a metal sulfide dopant and/or a metal sulfate dopant; and in the lithium sulfate, sulfur is derived from the non-metal sulfide dopant, and the metal sulfide dopant and/or the metal sulfate dopant. In the present application, the lithium sulfate in the coating layer suppresses damage to a crystal structure on the material surface and generation of inactive NiO during water washing, and the doped and coated elements stabilize lattice oxygen and an oxygen framework structure, thereby improving the capacity and cycle performance of the material while ensuring the safety performance.
Resumen de: US20260340568A1
A tracking and monitoring system that uses “smart” tracking labels with printed label information on the top and electronics and sensors embedded in thin, flexible layers underneath. Labels may be used to track the location of items, and to monitor item parameters such as temperature, shock, weight, or tampering. Tracking labels may have communications interfaces to transmit label location and sensor data to a centralized server for monitoring and analysis; interfaces may include for example Bluetooth, Wi-Fi, cellular, or Amazon Sidewalk. Label location may be determined from an integrated GPS, by triangulation using received signals from cellular or other networks, or from the location of nearby connected devices. Labels may be battery powered and may use energy harvesting to obtain power from the environment. To conserve battery life, manufactured labels may be put into a hibernation state, and activated when they are placed on an item.
Resumen de: US20260341782A1
A sulfide-based solid electrolyte with improved ionic conductivity, a method for preparing the sulfide-based solid electrolyte and an all-solid-state battery including the sulfide-based solid electrolyte. A sulfide-based solid, wherein the sulfide-based solid electrolyte has an argyrodite-type crystal structure, wherein the sulfide-based solid electrolyte is represented by chemical formula Li7-x-3yMyPS6-xHax, wherein in the chemical formula, M is at least one element selected from the Group 13 elements, wherein the Ha comprises Br, and wherein 0
Resumen de: AU2024441151A1
A method and apparatus of an emergency starting power supply used to start a device or energize a battery. This emergency starting power supply automatically detects the contact impedance of the device or battery and provides prompts from a user interface to the user based on this detected contact impedance. The prompts guide the user as the user on how to adjust the impedance of the connections to the device or battery so that it is connected optimally to the device or battery so that the emergency starting power supply can provide the device or battery with enough energy to start the motor or engine.
Resumen de: WO2026222922A1
A battery health evaluation method and an evaluation device. The method comprises: classifying a plurality of batteries into N battery categories on the basis of voltage variations per unit time, using index data of each second battery cell in a first battery category as training data of a first prediction model, a second prediction model and a third prediction model, obtaining a first health value, a second health value and a preset health value of a first battery cell by means of the trained first prediction model, second prediction model and third prediction model, and on the basis of the health values, further obtaining a target health value of the first battery cell at a first time point in a first step, wherein the battery category of each second battery cell is the first battery category; the first step is a discharging step or a charging step; and the target health value is used for evaluating whether the first battery cell is abnormal at the first time point in the first step, in order to realize battery fault diagnosis, prediction and early warning.
Resumen de: US20260341810A1
A battery system may include a battery module, a slave battery management system (BMS) including an antenna, the slave BMS being connected to the battery module, and configured to sense a state of the battery module and generate sensing information, and transmit the sensing information through the antenna as a wireless signal, and a master BMS including multiple antennas. The master BMS may be configured to receive the wireless signal through the multiple antennas as a plurality of wireless signals, adjust phases for the plurality of wireless signals and generate a plurality of first wireless signals, synthesize the plurality of first wireless signals and generate a second wireless signal, obtain the sensing information by using the second wireless signal, and control the battery module by using the obtained sensing information.
Resumen de: US20260336019A1
A welding device for a secondary battery cell tab according to one embodiment of the present invention comprises: a mask for covering the surface of a busbar assembly; a fixing member fixed to the busbar assembly; a support member, which supports the mask and is coupled to the fixing member; and a laser generator for irradiating a laser beam at the busbar assembly, wherein the mask includes a mask body and a plurality of penetration parts penetrating the mask body, and a portion for forming the mask body from among the plurality of penetration parts may form an acute angle with the normal line of the penetration part.
Resumen de: US20260338869A1
A battery management apparatus according to an embodiment of the present disclosure includes a profile obtaining unit configured to obtain a measurement full-cell profile representing the corresponding relationship between voltage and capacity of a battery; a profile determining unit configured to divide at least one of a preset reference positive electrode profile and a reference negative electrode profile into a plurality of electrode sections, adjust the reference positive electrode profile and the reference negative electrode profile to correspond to the measurement full-cell profile while adjusting each of the plurality of electrode sections, and generate an adjustment positive electrode profile and an adjustment negative electrode profile according to the adjustment result; and a control unit configured to determine a diagnostic factor for the battery from at least one of the adjustment positive electrode profile and the adjustment negative electrode profile.
Resumen de: US20260341737A1
A method for manufacturing a dry electrode and its manufacturing system is provided., The method for manufacturing the dry electrode of the present invention includes forming a primer layer having a predetermined width on at least one surface of a current collector; forming a dam on two widthwise sides of the primer layer to prevent an electrode powder from flowing down; feeding the electrode powder onto a surface of the primer layer; and compressing the electrode powder to form an electrode active material layer.
Resumen de: US20260341695A1
A positive electrode active material including: a lithium nickel-based transition metal oxide with a large particle diameter and a lithium nickel-based transition metal oxide with a small particle diameter. The lithium nickel-based transition metal oxide with a large particle diameter is in the form of a secondary particle that is an aggregate of primary particles. The lithium nickel-based transition metal oxide with a small particle diameter is in the form of a single particle formed of one nodule and/or a quasi-single particle that is a composite of 30 or less nodules. A P value, which is defined by a factor related to the shape of a large-diameter particle and a factor of the specific surface area of a small-diameter particle, is 1.00 or more. The positive electrode active material is applied to a positive electrode to provide a lithium secondary battery with at least improved lifespan and output characteristics.
Resumen de: US20260341729A1
This application relates to a current collector, a secondary battery, a battery module, a battery pack, and an electric apparatus. A coating is formed on one side of the current collector, and the coating includes an interface protection layer. The interface protection layer is beneficial to reduce a contact area between a metal and an electrolyte solution, thereby reducing the occurrence of side reactions between the metal and the electrolyte solution, and effectively improving the coulombic efficiency and capacity retention rate after 100 cycles of the battery.
Resumen de: US20260341883A1
The battery apparatus includes a battery box, and a plurality of battery cells, a box beam, and a mounting structure that are arranged in the battery box. A connecting hole is provided on the battery box. The mounting structure includes a first locking member and a second locking member. An end of the first locking member is connected to the box beam. The other end of the first locking member is pressed against an inner wall of the battery box and is disposed around the connecting hole. An end of the second locking member passes through the connecting hole and extends into the battery box to be connected to the first locking member, an assembly hole is provided on an end of the second locking member away from the first locking member, and the assembly hole is configured to be fittingly connected to a fastener of a carrier.
Resumen de: US20260341910A1
Disclosed is a secondary battery, a battery assembly and an electronic device. The secondary battery includes a housing, an electrode assembly, and a current collector member. The electrode assembly includes a wound structure formed by stacking and winding a positive electrode sheet, a negative electrode sheet and a separator. The positive electrode sheet includes a positive electrode coated area, a positive electrode uncoated area, and an insulation layer. The positive electrode uncoated area is bent toward the winding axis to form a stacked positive electrode uncoated area. The current collector member is welded to the stacked positive electrode uncoated area. The insulation layer includes a first insulation layer facing the winding axis and a second insulation layer facing away from the winding axis. The first insulation layer and the second insulation layer extend toward the stacked positive electrode uncoated area.
Resumen de: US20260341771A1
An electrode supply apparatus having an electrode magazine for accommodating a plurality of stacked electrodes, a sensor for detecting a shape of a stacked electrode in the magazine, and an electrode picking-up part for picking up an electrode in the electrode magazine, and a position controller for changing a position of the stacked electrodes in the magazine in accordance with the detected shape is provided. A method of supplying an electrode is also provided.
Resumen de: US20260337026A1
A porous carbon-Ag composite includes macro porous carbon particles and Ag particles inserted into pores of the macro porous carbon particles, a negative electrode comprising the composite, and a lithium-ion secondary battery comprising the negative electrode.
Resumen de: US20260338849A1
A battery module detection system and method. The battery module detection system includes a control circuit and a detection circuit, wherein the detection circuit includes a resistance unit. The control circuit is configured to: control the transmission of a power supply voltage to the detection circuit and obtain a detection voltage fed back by the detection circuit, determine detection parameters inside a battery module on the basis of the power supply voltage, the detection voltage and the resistance value of the resistance unit, and on the basis of the detection parameters inside the battery module, determine whether an insulation abnormality is present inside the battery module.
Resumen de: US20260341677A1
The present disclosure provides a composite porous material and use thereof, a silicon-based composite material, a negative electrode and a battery. The composite porous material contains composite porous material particles, and the composite porous material particles are obtained by compounding two (A and B) or more porous materials of different pore structures; distribution of the porous material A and the porous material B in the composite porous material particles is not limited; and a pore volume of the porous material A is greater than that of the porous material B.
Resumen de: US20260341704A1
A battery cell, a battery, and an electric device are provided. The battery cell includes a positive electrode plate having an aspect ratio m satisfying 1≤m≤6 and a positive electrode active material layer having a compaction density ρ satisfying 3.3 g/cm3≤ρ≤3.7 g/cm3. A mass proportion of single-crystal particles in the positive electrode active material is no less than 50%, and a porosity of the positive electrode active material layer ranges from 23% to 33%. The use of single-crystal particles reduces particle fracture, side reactions with an electrolytic solution, and impedance growth, thereby improving conductivity, lowering direct current resistance (DCR), and enhancing performance of high energy density cells.
Resumen de: US20260341673A1
A negative electrode plate includes a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector. The negative electrode film layer has a first surface distant from the negative electrode current collector and a second surface arranged opposite to the first surface. The thickness of the negative electrode film layer is denoted as H. A region within a thickness range from the first surface to 0.3 H of the negative electrode film layer is denoted as a first region of the negative electrode film layer. A region within a thickness range from the second surface to 0.3 H of the negative electrode film layer is denoted as a second region of the negative electrode film layer. The binder content in the first region is less than the binder content in the second region.
Resumen de: US20260341714A1
A secondary battery includes a negative electrode sheet. The negative electrode sheet includes a negative electrode current collector and a negative electrode film layer, which is arranged on at least one surface of the current collector and includes a negative electrode active material and a conductive agent. The powder conductivity σ of the negative electrode active material is greater than or equal to 80 S/cm but less than or equal to 106 S/cm, and the compaction density of the negative electrode film layer is 1.35 g/cm3 to 1.50 g/cm3.
Nº publicación: US20260341715A1 29/10/2026
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
Contemporary Amperex Technology Co., Limited
Resumen de: US20260341715A1
A particle body of the graphite negative electrode active material includes an internal region and a surface-layer region at least partially surrounding the internal region. The surface-layer region refers to a region formed by extending from a surface of the particle body of the graphite negative electrode active material to an interior of a particle by a distance of 30 nm. The mass percentage of crystalline carbon in the internal region is denoted as η1, the mass percentage of crystalline carbon in the surface-layer region is denoted as η2, and 10%≤η1−η2≤35%.
BOPI
Sede Electrónica
