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1525
results.
Updated on
12/09/2025 [07:43:00]
Results 875 to 900 of 1525
Absstract of: WO2025181586A1
An electric battery unit (1) comprises an array of battery cells (2) disposed within a container (4) and configured to be in direct contact with a flow of a temperature-regulating liquid passing through the container (4), for maintaining the battery unit (1) within a determined temperature range. The container (4) comprises an inlet collector chamber (5) and an outlet collector chamber (6) for the temperature-regulating liquid, arranged on opposite sides of the array of battery cells and communicating with each other via spaces (7) between the battery cells (2). Each space (7) between the cells (2) communicates with the inlet collector chamber (5) via one or more restricted passages (9) for the temperature-regulating liquid, configured to generate sufficient resistance to the passage of the temperature-regulating liquid to prevent the temperature-regulating liquid from tending to flow to a greater extent into the spaces that are closer to the inlet opening (5A) and/or the outlet opening (6A) of the container (4). A plate (10) separates the inlet collector chamber (5) from the battery cells (2). Each restricted passage (9) communicates with a respective space (7) between the battery cells (2) through an opening (9; 90; 91) that is formed in said plate (10) and that is elongated in a direction (X) orthogonal to the main surfaces of the cells (2) by a length sufficient to ensure communication of the opening with the respective space (7) between the cells, even in the case of var
Absstract of: WO2025181575A1
According to the present invention there is provided a battery module (1) comprising, a chamber (2); a plurality of battery cells (3) arranged within said chamber (2); a liquid (5) which is located within the chamber (2), and which can change phase to a gas when heated above a predefined temperature; a sensor assembly (6) which is configured to detect changes in pressure within the chamber (2) caused by the change in phase of the liquid (5) to a gas. There is further provided an electric or hybrid vehicle comprising said battery module.
Absstract of: FI20235028A1
The present disclosure provides a method for separating manganese in leaching of cobalt and/or nickel, the method comprising providing a leach solution comprising cobalt and/or nickel, providing manganese in the leach solution as the only reducing agent, and allowing the manganese to precipitate as manganese dioxide while the cobalt and/or nickel are dissolved. The present disclosure also provides use of material comprising cathode material or leaching solution obtained from material comprising cathode material in the method.
Absstract of: CN120112487A
Ionic solids (e.g., disordered rock salt oxide/oxyfluoride (DRX) compositions) useful as lithium ion cathodes are synthesized by microwave processes that are two orders of magnitude faster than conventional solid and mechanochemical synthesis processes. The microwave synthesis can be carried out in ambient air, so that the synthesis time, the energy consumption and the cost are greatly reduced. In one illustrative embodiment of the method, the precursor powders are mixed and pressed into pellets. Then putting the pellets into a ceramic crucible surrounded by activated carbon; and then the crucible is placed in 1200W microwaves to be continuously heated for 5-20 minutes. And after the microwave radiation is stopped, immediately and quickly taking out the pellets from the crucible, and quenching in water. The pellets are then dried and milled into a powder, which is the final DRX product.
Absstract of: EP4611055A1
The present invention relates to an all solid-state battery, which comprises a cathode including a cathode active material layer containing a cathode active material, an anode including an anode catalyst layer containing an anode catalyst and Nb<sub>2</sub>O<sub>5</sub> and an electrolyte, wherein the anode catalyst layer contains Nb<sub>2</sub>O<sub>5</sub> at a content of 1 wt% to 30 wt% on the basis of a total of, 100 weight% of the anode catalyst layer and the ratio (N/P) of a capacity of the anode catalyst layer to that of the cathode is between 0.1 (inclusive) and 0.5 (exclusive).
Absstract of: EP4611052A1
The present invention relates to a negative electrode for an all-solid-state battery including same. This negative electrode for an all-solid-state battery includes a current collector and a negative electrode catalyst layer located on the current collector and including an amorphous carbon, metal and clay.
Absstract of: EP4611105A1
An object of the present disclosure is to provide a nonaqueous electrolytic solution and a clay-type lithium ion secondary battery using same, the nonaqueous electrolytic solution having both excellent battery safety when used at a high temperature, an important feature for secondary batteries to be installed in modern vehicles such as electric vehicles, and having excellent battery characteristics. The nonaqueous electrolytic solution of the present disclosure is a nonaqueous electrolytic solution including an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous solvent containing from 80 to 100 vol% in total of at least one selected from ethylene carbonate, propylene carbonate, and γ-butyrolactone, and the nonaqueous electrolytic solution further including a trifluoroacetic acid ester having an alcohol group with a carbon chain length of from 6 to 8.
Absstract of: EP4611059A1
The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material capable of preventing and/or mitigating the degradation of electrochemical properties and lifetime of the positive electrode active material caused by lithium impurities and/or a washing process by removing lithium impurities through surface modification without a washing process for reducing the content of lithium impurities such as LiOH and Li<sub>2</sub>CO<sub>3</sub> remaining on the surface of the positive electrode active material, and a lithium secondary battery using a positive electrode including the positive electrode active material.
Absstract of: EP4611091A1
An object of the present disclosure is to provide a nonaqueous electrolytic solution and a lithium ion secondary battery using same, the nonaqueous electrolytic solution having both excellent battery safety when used at a high temperature, an important feature for secondary batteries to be installed in modern vehicles such as electric vehicles, and having excellent battery characteristics. The nonaqueous electrolytic solution of the present disclosure is a nonaqueous electrolytic solution including an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous solvent containing from 80 to 100 vol% in total of at least one selected from ethylene carbonate, propylene carbonate, and γ-butyrolactone, and the nonaqueous electrolytic solution further including a trifluoroacetic acid ester having an alcohol group with a carbon chain length of from 6 to 8.
Absstract of: GB2623892A
A method of determining the reusability of a battery includes: measuring an open circuit voltage (OCV) for each of a plurality of cells in the battery 104; performing an electrochemical dynamic response (EDR) test on the battery to derive impedance and lithium transport parameters for each of the cells 106; performing a resistance test on a plurality of wires and connectors to identify defective wires or connectors 108; and measuring a flow of current in a plurality of charge balancing circuits to identify a malfunctioning charge balancing circuit based on the determined current drainage 110. One or more outlier cells are identified from these tests 114. Outlier cells found to be damaged or defective may be removed from the battery and either repurposed or recycled. This may be done on the basis of a degradation pathway predicted for the cells over the lifetime of the battery.
Absstract of: CN120202589A
The invention relates to a method for connecting a trap (20) to an inner side (11) of a pole cap (10) of an electrochemical cell (100), in which a drawing mandrel (30) is pushed through an opening (12, 12 ') of the pole cap (10) and/or through an opening (23) or a recess (24) of the trap (20), the drawing mandrel (30) is designed to at least temporarily form a mechanical connection between the drawing mandrel (30) and the catch (20) at a portion (31 ''), or the drawing mandrel (30) is mechanically connected to the catch (20), in which a force (F) outward from the opening (12) of the pole cap (10) acts on the drawing mandrel (30) and the catch (20) presses against the inner side (11) of the pole cap (10), in which the catch (20) pressed against the inner side (11) of the pole cap (10) is connected to the pole cap (10), in particular in an electrically conductive manner.
Absstract of: US2024145697A1
A multi-layer cathode coating for positive electrode of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and a secondary battery including a cathode having a multi-layer cathode coating. Multi-layer cathode coatings containing blends of one or more cathode active materials in certain weight ratios thereof.
Absstract of: EP4610409A1
Provided is a Ni-plated steel sheet comprising a steel sheet, and an Fe-Ni diffusion layer formed on at least one surface of the steel sheet, wherein as determined by EBSD measurement performed on the topmost surface of the Ni-plated steel sheet, the average crystal grain size is 0.32 µm or more, and the proportion of the region which can be indexed as Fe is 0.0% or more and 6.0% or less.
Absstract of: EP4610408A1
Provided is a surface-treated steel sheet comprising a steel sheet, and an Fe-Ni diffusion layer formed on the topmost surface of at least one surface of the steel sheet, wherein when a maximum diffraction intensity IA at a diffraction angle 2θ of 43.00° or more and 44.30° or less and a maximum diffraction intensity IB at a diffraction angle 2θ of 44.51° or more and 45.00° or less are obtained by thin film X-ray diffractometry performed on the surface of the Fe-Ni diffusion layer, the ratio IB/IA is 0.01 ≤ IB/IA ≤ 0.37.
Absstract of: EP4611070A1
A coated positive electrode active material for a lithium secondary battery includes a positive electrode active material and a coating layer disposed on the surface of the positive electrode active material. The positive electrode active material contains cobalt (Co). The coating layer contains at least lithium (Li), phosphorus (P), an element M, and oxygen (O). The element M is a pentavalent transition metal element.
Absstract of: EP4610173A1
A hybrid rotor drive system includes: a gas turbine engine including a compressor, a combustor, a turbine, and a first output shaft that mechanically connects the compressor to the turbine; an electric motor including a second output shaft; and a gear box including a first input interface, a second input interface, a speed reducer that reduces speed of rotational force input from the first input interface and the second input interface, and an output interface that outputs the rotational force, which has been reduced in speed by the speed reducer, to a rotor. The first output shaft of the gas turbine engine is mechanically connected to the first input interface, and the second output shaft of the electric motor is mechanically connected to the second input interface.
Absstract of: EP4610679A1
An information processing method includes: acquiring measurement data of a plurality of energy storage devices; executing, based on measurement data of a first energy storage device group selected from the plurality of energy storage devices, a first process for estimating a degradation state of the first energy storage device group; extracting, from among the plurality of energy storage devices, a second energy storage device to be subjected to a second process; and executing, based on measurement data of the extracted second energy storage device, a second process for estimating a degradation state of the second energy storage device.
Absstract of: CN120152927A
The invention relates to a device (5) for transporting and optionally stacking planar electrode elements (1), which is designed to transport the planar electrode elements individually in succession along a transport path (10). The apparatus has a distance increasing device (12) which is arranged along the transport path of the planar electrode elements, for example upstream of the stacking device (17), and is designed to increase the distance (a) between the planar electrode elements, in particular to a processing distance (A), by accelerating the planar electrode elements in order to handle individual planar electrode elements.
Absstract of: CN120152927A
The invention relates to a device (5) for transporting and optionally stacking planar electrode elements (1), which is designed to transport the planar electrode elements individually in succession along a transport path (10). The apparatus has a distance increasing device (12) which is arranged along the transport path of the planar electrode elements, for example upstream of the stacking device (17), and is designed to increase the distance (a) between the planar electrode elements, in particular to a processing distance (A), by accelerating the planar electrode elements in order to handle individual planar electrode elements.
Absstract of: EP4611211A1
Provided is an electrically driven work machine capable of increasing estimation accuracy of a remaining charge time or a remaining discharge time of a secondary battery. An electrically driven excavator includes a secondary battery, a battery management unit, and a vehicle control unit. The vehicle control unit predicts a transition of a temperature of the secondary battery on the basis of the temperature and a state of charge of the secondary battery detected by the battery management unit, predicts a transition of a current of the secondary battery on the basis of the predicted transition of the temperature of the secondary battery, and estimates the remaining charge time or the remaining discharge time of the secondary battery on the basis of the predicted transition of the current of the secondary battery.
Absstract of: EP4611054A1
A negative electrode (12) according to an embodiment of the present invention comprises: a negative electrode core (40); and a negative electrode mixture layer (41) that is positioned on the negative electrode core (40), the negative electrode mixture layer (41) containing a negative electrode active material (50) and a water-soluble polymer (51). The water-soluble polymer (51) is present such that an amount of 0.50 mass% or more relative to the negative electrode active material (50) is adsorbed onto the negative electrode active material (50), and an amount of 1.05 mass% or less is separated from the negative electrode active material (50). The negative electrode active material (50) includes a carbon material and a silicon-containing material.
Absstract of: EP4611090A1
In a non-aqueous electrolyte secondary battery according to an embodiment, a positive electrode includes a lithium-containing transition metal composite oxide and a sulfonic acid compound present on the surface of particles of the composite oxide. The sulfonic acid compound is represented by formula (I). In the formula, A is a Group 1 or Group 2 element, R is a hydrocarbon group, and n is 1 or 2. A negative electrode includes a silicon-containing material (50). The silicon-containing material (50) contains an ion-conducting phase (51) and a Si phase (52) dispersed in the ion-conducting phase (50), and the size of the Si phase (52) is 110 nm or less.
Absstract of: EP4610309A1
Provided is a liquid dispersion of fluoride particles suitable for an optical material of an optical film such as an antireflection film, an electrode material of a secondary battery, and the like by satisfactorily dispersing fluoride particles even without using a dispersant containing a conventional surfactant. The liquid dispersion of fluoride particles according to the present invention is characterized by including an organic solvent, fluoride particles dispersed in the organic solvent, and polyvinylidene fluoride as a dispersant for dispersing the fluoride particles.
Absstract of: EP4611165A1
A battery disclosed includes a case, an electrode group, a sealing unit including a conductive cap, a terminal plate 60 joined to an opening edge of the case, and an insulating plate 70 that electrically insulates the conductive cap from the terminal plate 60. The case and the terminal plate 60 are electrically connected to a first electrode, while the conductive cap is electrically connected to a second electrode. The terminal plate 60 has a first connection region to which a first external terminal 101 is to be connected. The conductive cap has a second connection region to which a second external terminal is to be connected. The terminal plate 60 has a planned breaking part 64 between the first connection region and a joint part 63 thereof joined to the opening edge of the case. The planned breaking part 64 breaks when the internal pressure of the case exceeds a predetermined value, separating the terminal plate in the axial direction of the case into a broken piece 65 on the outer peripheral side and a broken piece 66 on the inner peripheral side. Thus, a battery having a current interruption function can be provided.
Nº publicación: EP4611140A1 03/09/2025
Applicant:
PANASONIC ENERGY CO LTD [JP]
Panasonic Energy Co., Ltd
Absstract of: EP4611140A1
The present disclosure provides a battery pack that can reduce adverse effects on an adjacent secondary battery cell. A battery pack 100 includes a plurality of secondary battery cells 1, each of which has a gas discharge port 1a on an end face, a battery holder 20 that holds the plurality of secondary battery cells 1, one or more lead plates 30 that couple end faces of adjacent secondary battery cells 1 among the plurality of secondary battery cells 1, and a baffle plate 40 having a plurality of protrusions and depressions that generate a pressure difference in gas discharged from the secondary battery cells 1. The plurality of protrusions and depressions are provided between the end faces of the adjacent secondary battery cells 1 by being disposed on at least one of a face of the battery holder 20 opposite the lead plate 30 and a face of the lead plate 30 opposite the battery holder 20.
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