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333
results.
Updated on
15/11/2026 [06:55:00]
Results 200 to 225 of 333
Absstract of: US20260360814A1
Provided herein are electrolyte additives and formulations for energy storage devices having improved performance. The electrolyte includes at least one carbon dioxide source dissolved in a fluorinated solvent. The improved performance may be realized as improved cycling stability.
Absstract of: US20260360810A1
A solid-electrolyte material including a polymer in which an acidic functional group having an alkali metal ion is bonded to a main chain, and the polymer has a crosslinked structure including an electron-donating polar group. A nonaqueous-electrolyte secondary battery satisfies at least one selected from the group consisting of (A) to (D): (A) includes a membrane containing the solid-electrolyte material, the membrane disposed on a surface of at least one electrode facing a separator; (B) includes a membrane containing the solid-electrolyte material, the membrane disposed on a surface of a particle of at least one of a positive electrode active material and a negative electrode active material; (C) includes a membrane containing the solid-electrolyte material, the membrane disposed at least at a part of a surface of the separator; and (D) the separator includes the solid-electrolyte material.
Absstract of: US20260358426A1
The present disclosure relates to an all-solid-state battery analysis system capable of reliably obtaining an electrochemical signal according to the degree of charge of an electrode, and an all-solid-state battery analysis method using the same. The system may include a body member, of cylindrical shape, having a first cavity extending therethrough in a vertical direction and a second cavity extending therethrough in a horizontal direction and communicating with the first cavity. The system may include a first conductive member including a first base having a plate shape and a first protrusion protruding from the first base having a shape corresponding to a shape of the first cavity; and a second conductive member including a second base having a plate shape and a second protrusion protruding from the second base and having a shape corresponding to the shape of the first cavity.
Absstract of: US20260361102A1
An energy balancing system is disposed outside an energy storage apparatus. The energy balancing system includes at least two balancing circuits. In a same time period, a first balancing circuit is configured to perform discharging processing on a first energy storage unit, and a second balancing circuit is configured to perform charging processing on a second energy storage unit, to implement energy balancing between energy storage units in the energy storage apparatus. In addition, a switching circuit disposed in the energy balancing system can implement sharing of a balancing circuit between energy storage units.
Absstract of: US20260360795A1
An embodiment discloses a stacking apparatus including a stacking module including a main stage, and a stacking head configured to stack a positive electrode plate, a negative electrode plate, and a separator on the main stage, a positive electrode plate supply module configured to supply the positive electrode plate, and a negative electrode plate supply module configured to supply the negative electrode plate, in which the stacking module includes at least one support unit configured to support the positive electrode plate, the negative electrode plate, and the separator stacked on the main stage, in which the at least one support unit includes a support pin, a first support driving part configured to move the support pin in a horizontal direction, and a second support driving part configured to move the support pin in a vertical direction, and in which the first support driving part and the second support driving part operate independently.
Absstract of: US20260360720A1
Provided are a cathode active material, a method of preparing the same, and a secondary battery including the same, the cathode active material including a lithium nickel-based transition metal oxide particle including 96 mol % or more of nickel, not including manganese, including from 400 ppm to less than 1,000 ppm of titanium (Ti) substituted at transition metal sites within a crystal structure, and including a concentration gradient region in which respective concentrations of aluminum (Al) and cobalt (Co) atoms each change from a surface of the particle toward a center of the particle, and wherein, in the concentration gradient region, an absolute value (A) of a slope of the cobalt atom concentration change and an absolute value (B) of a slope of the aluminum atom concentration change satisfy A>B.
Absstract of: US20260361106A1
Accessory cases that can be charged using one or more types of wireless chargers. An example can provide an accessory case having a first alignment feature for aligning to a first type of wireless charger. The first alignment feature can include one or more magnetic elements in the accessory case. The one or more magnetic elements can be located in both the base and the lid of the accessory case. Another example can further include a second alignment feature for aligning to a second type of wireless charger. The second alignment feature can include one or more magnetic elements in the accessory case.
Absstract of: US20260360948A1
A secondary battery according to one or more embodiments of the present disclosure includes a case for accommodating an electrode assembly in an internal accommodating space, a cap plate, a first terminal inserted into the cap plate in a first direction, and bent at an inner surface of the cap plate to be coupled to the cap plate, and a collector plate in the case, electrically connected to a first electrode of the electrode assembly, and coupled to the first terminal in the first direction.
Absstract of: US20260360714A1
Provided are a positive electrode active material for a sodium secondary battery including: a sodium manganese-based oxide which includes at least sodium (Na), nickel (Ni), manganese (Mn), and a doping metal (Mp) and has a manganese content of 55 mol % or more in all metals other than sodium, wherein the sodium manganese-based oxide is a secondary particle formed by agglomeration of at least one primary particle, and the primary particles have an aspect ratio of 1:1 to 1:2.5, a method for producing a positive electrode active material, and a positive electrode for a sodium secondary battery and a sodium secondary battery including the positive electrode active material.
Absstract of: US20260360943A1
A cylindrical lithium metal secondary battery includes: a case, a jelly roll arranged in the case, and an electrolyte filling the case. The jelly roll comprises a wound electrode set and tabs arranged on the wound electrode set; the wound electrode set is formed by winding a positive electrode, a negative electrode, and a separator; the negative electrode is a metal lithium sheet; the metal lithium sheet serves as a negative electrode current collector and a negative electrode active material.
Absstract of: US20260360718A1
A positive electrode active material includes a lithium nickel complex oxide having a hexagonal crystalline layered structure and containing secondary particles in which a plurality of primary particles are aggregated. The lithium nickel complex oxide contains Li, Ni, B, and element M at a ratio by mole of Li:Ni:B:M=a:b:c:d (where 0.95≤a≤1.10, 0.50≤b<1.00, 0.00
Absstract of: US20260360748A1
Provided is a positive electrode material for a lithium ion secondary battery, including aggregated particles including aggregated multiple primary particles of a positive electrode active substance containing lithium iron phosphate coated with a carbonaceous film, the positive electrode active substance having a prescribed composition containing lithium iron phosphate, at least one kind of calcium phosphate particles and aluminum phosphate particles existing on a surface of the primary particles of the positive electrode active substance, a grain boundary among the primary particles, or both the surface and the grain boundary. The positive electrode material has high input and output characteristics in using as a positive electrode of a lithium ion secondary battery.
Absstract of: AU2024437927A1
A ventilation structure, an energy storage cabinet and an energy storage system. The ventilation structure comprises a mounting body and flow guide members, wherein the mounting body is configured to be assembled and connected to a ventilation opening of the energy storage cabinet; all flow guide assemblies are connected to the mounting body, and each group of flow guide assemblies comprise a plurality of flow guide members, which are arranged in a first direction intersecting with a ventilation direction of the energy storage cabinet, and on one side of the ventilation direction, each flow guide member is provided with a recessed cavity having an opening. The ventilation structure is additionally arranged at the ventilation opening, and when noise is transmitted outwards by means of the ventilation opening, the noise can be collided between the flow guide members so as to be eliminated, thereby achieving the effect of reducing noise. When the ventilation opening serves as an air inlet, the opening of the recessed cavity of each flow guide member is made to face the interior of the energy storage cabinet, such that an airflow, which is blown in from outside to inside, is normally guided and is smoothly blown into the energy storage cabinet, and noise transmitted from the inside to the outside can be absorbed by the recessed cavity of each flow guide member, thereby eliminating the noise. In this way, the flow guide members can not only perform flow guiding, but can also perfo
Absstract of: US20260358421A1
Provided is a secondary battery information output device capable of easily estimating characteristics of a secondary battery. The secondary battery information output device includes a data acquisition element configured to acquire charging and discharging data, a storage element configured to store first correspondence relationship data and second correspondence relationship data, an information processing element configured to estimate a type of a secondary battery of a processing target, and an output element configured to output an estimation result of the information processing element. The information processing element executes first estimation processing of estimating the type of the secondary battery of the processing target, and executes second estimation processing of further estimating the type of the secondary battery of the processing target when the type of the secondary battery of the processing target is not able to be uniquely estimated in the first estimation processing.
Absstract of: US20260356987A1
The present invention is directed to a carboxymethyl cellulose (CMC) with low gel particles, compositions comprising CMC, their methods of preparation and uses thereof.
Absstract of: US20260360870A1
Provided are methods for sealing a secondary battery comprising: positioning a heater on a front surface of a sealer comprised of an upper sealer and a lower sealer; positioning the electrode lead between the upper and lower sealers; heating the electrode lead with the heater; sealing the electrode lead and the battery case with the sealer; photographing the sealer around the heater with a camera facing a front surface of the heater to obtain sealer shape information; measuring a temperature of the sealer around the heater to obtain temperature information of the sealer; acquiring thermal expansion data according to the temperature of the sealer using the shape information, the temperature information, and material information about the sealer; and measuring a temperature of the electrode lead; and predicting a thermal expansion value of the sealer at the electrode lead covered by the heater using the thermal expansion data.
Absstract of: US20260360834A1
A sealing material includes a sealing material main body that performs a sealing function between members, and a detection unit that changes color when coming into contact with a detection target gas.
Absstract of: US20260358214A1
Profile alignment with cross-correlation is employed to determine the alignment between two measured profiles taken at different locations along a sheet of material. Aligning two profiles in sheet manufacturing is critical so that the coating weight on the sheet can be calculated. Coat weight profile is calculated by subtracting the weight of the sheet prior to coating from the measured total weight of the coated sheet after coating. When profiles are not aligned correctly for this subtraction, the coat weight profile will be inaccurate and corrective control actions for apparent deviations in coat weight may be applied to the wrong part of the sheet and may result in poor quality. Profile misalignments are monitored by repeatedly performing cross-correlation analysis as new measurement data becomes available. Offset is tracked over time and displayed. Automatic alerts are triggered when the offset deviates from zero and/or changes in value.
Absstract of: US20260360864A1
A battery includes at least one electrochemical accumulator including an active portion and a casing containing the active portion; a housing which houses the at least one accumulator; and a heat-transfer fluid contained in the housing, the casing including a weakened area configured to open under the effect of overpressure in the accumulator and to discharge gases produced by the active portion of the accumulator which caused the overpressure. When the overpressure occurs in the at least one accumulator, the heat-transfer fluid comes into contact with the gases produced by the accumulator in such a way as to contain the gases and cool the accumulator.
Absstract of: US20260360760A1
A negative electrode for an all-solid-state battery includes a negative electrode current collector, an amorphous carbon layer located on one side of the negative electrode current collector, and a porous sheet inside the amorphous carbon layer. An all-solid-state battery having the negative electrode is also disclosed.
Absstract of: US20260360706A1
A positive electrode plate includes a current collector and a positive electrode active layer, and the positive electrode active layer is disposed on at least one surface of the current collector. The positive electrode active layer includes a first positive electrode active layer formed at least on the current collector, and a second positive electrode active layer formed on a side, away from the current collector, of the first positive electrode active layer. One of the first and second positive electrode active layers includes lithium iron phosphate particles, and the other one of the first and second positive electrode active layers includes lithium nickel cobalt manganese oxide particles. An average primary particle size of the lithium iron phosphate particles is 500-3000 nm, and a specific surface area BET of the lithium iron phosphate particles is 3-8 m2/g.
Absstract of: US20260360726A1
A positive electrode active material, and a positive electrode and a lithium secondary battery that include the same. The positive electrode active material includes a lithium composite transition metal oxide in the form of a single particle. The lithium composite transition metal oxide satisfies Equation 1 described herein.
Absstract of: US20260360687A1
In a method for manufacturing an electrode for a secondary battery according to some embodiments, a first active material slurry is applied to an electrode current collector to form a first coating layer. The first coating layer is pre-dried to form a first preliminary active material layer. A second active material slurry is applied to the first preliminary active material layer to form a second coating layer. The first preliminary active material layer and the second coating layer are converted into a first active material layer and a second active material layer, respectively, through bulk drying performed at a temperature greater than the pre-drying temperature. Accordingly, the cycle life properties of an electrode including an active material layer having a multi-layer structure may be improved, and the resistance may be reduced.
Absstract of: US20260360829A1
In a method for manufacturing an electrode assembly for a lithium secondary battery according to some embodiments, an electrode current collector is prepared. An upper active material layer is formed on an upper surface of the electrode current collector, and a lower active material layer having a lower density than the upper active material layer is formed on a lower surface of the electrode current collector to form a preliminary electrode. The preliminary electrode is then wound with the lower active material layer disposed on an inner side of the winding to form a wound electrode including an upper wound active material layer and a lower wound active material layer. Accordingly, the density of the active material within the wound electrode assembly may be maintained substantially uniform throughout, thereby improving cycle life properties.
Nº publicación: US20260360828A1 12/11/2026
Applicant:
SK ON CO LTD [KR]
SK ON CO., LTD.
Absstract of: US20260360828A1
In a method for manufacturing an electrode for a secondary battery according to some embodiments, an electrode current collector is prepared. An active material layer including a first region at one end portion and a second region at the other end portion of the electrode current collector having greater active material loading amount and density than the first region is formed to prepare a preliminary electrode. The preliminary electrode is then wound around the one end portion of the electrode current collector together with the active material layer to form a wound electrode including a wound active material layer. Accordingly, the active material density may be maintained substantially uniformly across the entire region of the electrode assembly including the wound electrode, thereby improving cycle life properties.
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