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1482
resultados
Última actualización
11/09/2025 [07:18:00]
Resultados 1250 a 1275 de 1482
Resumen de: US2025273777A1
There is provided a battery packaging material having excellent long-term adhesion of a barrier layer having an acid resistance film. The battery packaging material comprises a laminate comprising at least a base material layer, a barrier layer, and a heat-sealable resin layer in this order, wherein the battery packaging material comprises an acid resistance film on at least one surface of the barrier layer, and when the acid resistance film is analyzed using time-of-flight secondary ion mass spectrometry, a PPO3/CrPO4 ratio, which is the ratio of peak intensity PPO3 derived from PO3− to peak intensity PCrPO4 derived from CrPO4−, falls within a range of 6 to 120.
Resumen de: US2025273657A1
A positive electrode active material, a positive electrode and a lithium secondary battery containing the same are provided. The positive electrode active material includes a lithium nickel-based composite oxide including nickel (Ni), cobalt (Co) and aluminum (Al), and including a first region, and a second region around (e.g., surrounding) the first region. The second region may be defined as a region having a thickness of about 1 micrometer (μm) in a direction from the outermost to the center of the positive electrode active material. The content (e.g., amount) ratio of nickel to aluminum (NNi/NAl) of the second region may be about 5 to about 45.
Resumen de: WO2025177693A1
According to the present invention, an electrode composition for a secondary battery electrode layer contains an electrolyte solution and satisfies all of (1)-(7). (1) The electrode composition contains an active material and an additive but does not include a binder resin. (2) The additive contains a compound (A), and the compound (A) content is 0.01-2.0 wt% relative to the solid weight of the electrode composition. (3) The HSP distance (Ra_Act) between the compound (A) and the active material is no more than 12.0 MPa0.5. (4) The HSP distance (Ra_Elec) between the compound (A) and the electrolyte solution is no more than 14.0 MPa0.5. (5) The compound (A) has a polyoxyethylene group that has at least 3 repeats. (6) The additive contains a compound (B) that has one diethylene glycol group and/or a compound (C) that has one ethylene glycol group. (7) The compound (B) content (B_cont) (ppm) and the compound (C) content (C_cont) (ppm) relative to the solid weight of the electrode composition satisfy all of expressions (i)-(iv). (i) 0≤B_cont≤50. (ii) 0≤C_cont≤10. (iii) 0
Resumen de: WO2025177668A1
The present invention suppresses a decrease in temperature of a coating film when transferring a base material from a first drying part to a second drying part. Specifically, a drying apparatus 10 comprises: a first drying part 11 that dries a coating film P applied on a base material W; and a second drying part 12 that further dries the coating film P of the base material W transferred from the first drying part 11. The first drying part 11 includes: a first heating device 21 for heating the coating film P; and a second heating device 22 for raising the atmospheric temperature of the first drying part 11, or heating the base material W or the coating film P at the first drying part 11.
Resumen de: WO2025177605A1
Provided are a method for manufacturing a retort using an Ni-based alloy containing 2.0% by weight or more of Al, a retort employing the Ni-based alloy, and a rotary kiln provided with the retort. A retort manufacturing method according to the present invention is a method for manufacturing a retort by plasma-welding a joint part of a base material made of an Ni-based alloy, without using a filler. The retort of the present invention comprises a base material made of an Ni-based alloy containing 90.0 % by weight or more of Ni and 2.0 % by weight or more of Al, and a weld metal portion generated at a joint part of the base material, wherein the base material comprises a heat affected zone generated around the weld metal portion, and a base material portion, which is the part of the base material other than the heat affected zone, and a value obtained by (formula 1) (average crystal grain size of heat affected zone/average crystal grain size of base material portion) × 100 is 100 to 300%, and/or the average crystal grain size of the heat affected zone is less than 250 μm. The rotary kiln of the present invention is provided with the retort of the present invention.
Resumen de: WO2025177409A1
This negative electrode material for lithium-ion secondary batteries comprises composite particles, a silicon carbide layer, and a coating layer. The composite particles include amorphous carbonaceous particles, and amorphous silicon particles having an average primary particle size of 1 nm to 50 nm inclusive. The silicon carbide layer is between the composite particles and the coating layer. The film thickness of the silicon carbide layer is 1 nm to 100 nm inclusive. The coating layer includes a magnesium or fluorine compound.
Resumen de: US2025273792A1
The present disclosure relates to a battery manufacturing apparatus for manufacturing a battery assembly which includes a plurality of battery cells, each including a tab part electrically connected to an outside and protruding outward, and an accommodating bottom surface forming a bottom surface of an accommodating space in which the plurality of battery cells are accommodated, including a sensor configured to sense a profile regarding a degree of protrusion of a coating surface of one side of the battery cell facing the accommodating bottom surface, a discharger configured to discharge an adhesive material to the coating surface of at least one battery cell of the plurality of battery cells, and a controller configured to control the discharger or the sensor to adjust at least one of a position and a moving speed of the discharger based on the profile, and a battery manufacturing method using the battery manufacturing apparatus.
Resumen de: US2025273793A1
An electrochemical apparatus, includes N battery cells divided into M battery cell groups, battery cells in each battery cell groups are arranged in a first direction, and the M battery cell groups are arranged in the first direction; each battery cell includes a battery cell housing and two electrode terminals; in the first direction, electrode terminals of two adjacent battery cell groups are connected by a conductive member, and connection areas are formed on the conductive members; a first fixing member is bonded to at least part of an electrode terminal on the first side of the battery cell group, and/or a second fixing member is bonded to at least part of the electrode terminal on the second side of the battery cell group.
Resumen de: US2025273797A1
A battery pack, which contributes to improvement in accuracy in detecting water infiltrating inside the battery pack, is realized. According to an embodiment of the present disclosure, a battery pack includes: a battery module including a plurality of battery cells stacked in a first direction, and a case for housing the battery module, in which the case includes a lower case arranged below the battery module which is on one side of the battery pack in a second direction orthogonal to a first direction, and the lower case includes a groove part extending in the first direction and a reservoir part arranged so as to be capable of storing water in at least one end part of the groove part in the first direction, and a water detection unit is arranged in the reservoir part.
Resumen de: US2025273725A1
Disclosed herein are a mandrel unit including a reinforcement member capable of preventing deformation of a jellyroll and reform collapse, a jellyroll forming method, an electrode assembly, and a secondary battery. The mandrel unit includes: a mandrel winding an electrode assembly secured to one region thereof in one direction; and a reinforcement member mounted in one region of the mandrel and securing the electrode assembly to the mandrel.
Resumen de: US2024291012A1
A secondary battery is provided for cycling between a charged and a discharged state, the secondary battery including a battery enclosure, an electrode assembly, carrier ions, a non-aqueous liquid electrolyte within the battery enclosure, and a set of electrode constraints. The set of electrode constraints includes a primary constraint system having first and second primary growth constraints and at least one primary connecting member, the first and second primary growth constraints separated from each other in the longitudinal direction, wherein the primary constraint array restrains growth of the electrode assembly in the longitudinal direction such that any increase in the Feret diameter of the electrode assembly in the longitudinal direction over 20 consecutive cycles of the secondary battery is less than 20%. The set of electrode constraints further includes a secondary constraint system having first and second secondary growth constraints connected by at least one secondary connecting member, wherein the secondary constraint system at least partially restrains growth of the electrode assembly in a second direction upon cycling of the secondary battery.
Resumen de: WO2025161158A1
A battery appearance inspection device (100), comprising: a rack (10); an illumination mechanism (20), the illumination mechanism (20) comprising a first adjustment structure (21) and a light source (22), wherein the first adjustment structure (21) is mounted on the rack (10) and connected to the light source (22) and is used to adjust the orientation and/or height of the light source (22); an imaging mechanism (30), the imaging mechanism (30) comprising a second adjustment structure (31) and a camera (32), wherein the second adjustment structure (31) is mounted on the rack (10) and connected to the camera (32) and is used to adjust the orientation and/or height of the camera (32); and a rotation driving mechanism (40) configured to hold a battery (200) and drive the battery (200) to rotate.
Resumen de: US2025125646A1
The present disclosure provides a discharge device and a method for controlling discharge of the discharge device. The discharge device according to an embodiment of the present disclosure includes: a connection member configured to connect the discharge device and a secondary battery; a discharge module configured to discharge the secondary battery connected thereto through the connection member; and a control module configured to control the discharge module so as to primary discharge the secondary battery to a designated reference state of charge (SoC) at a designated first current rate (C-rate), and when the secondary battery reaches the reference state of charge, secondary discharge the secondary battery to a designated peak negative voltage at a second current rate which is smaller than the first current rate. Accordingly, the present disclosure may improve the discharge efficiency of secondary batteries.
Resumen de: WO2023216530A1
The present application relates to the technical field of power batteries. Disclosed are a connector and a battery. The connector comprises a body part and connecting parts. The connecting parts are connected to the circumferential edge of the body part, and the connecting parts can be bent relative to the body part, so that the connecting parts and the body part are arranged at an included angle, and through holes are provided in the junction lines of the connecting parts and the body part. The connector can be prevented from being inserted into a jelly roll due to edge sinking of the connector during slot rolling and sealing, so that the potential safety hazards are reduced, and the safety is improved.
Resumen de: WO2025138199A1
The present application discloses an explosion-proof structure, and a battery. The explosion-proof structure comprises a cover plate. An explosion-proof groove is formed on the cover plate. The explosion-proof groove comprises a first sub-groove and a second sub-groove. The projections of the first sub-groove and the second sub-groove on one side face of the cover plate define a closed circular ring. The thickness of the cover plate at the position of the first sub-groove is smaller than the thickness of the cover plate at the position of the second sub-groove. The present application improves the reliability of the cover plate, and ensures the explosion-proof effect.
Resumen de: US2024063514A1
The present application provides an electrode assembly and an energy storage device. The electrode assembly includes an electrode assembly body and a current collector. The electrode assembly body is wound in shape; the current collector is arranged at an end of the electrode assembly body and includes multiple current collector units each bent towards an axis of the electrode assembly body, and an angle between each current collector unit and the axis of the electrode assembly body is in a range from approximately 0° to approximately 90°.
Resumen de: US2025266486A1
A cell supply device for a secondary battery includes a base plate on which first to third turntables, a positive electrode material tray, and a negative electrode material tray are installed, a cell elevating unit installed on an upper surface of the first turntable to move up and down, a cell supply member on which a cell adsorption unit configured to adsorb cells is installed, a first transport member provided with the second turntable installed at one side of the cell supply member, a cell transport tray on which the cells are stacked, and a slider unit installed on a lower surface of the cell transport tray, and a second transport member in which the cell elevating unit and the cell adsorption unit (151) are installed on the third turntable.
Resumen de: WO2025178948A1
The present inventions relate to methods, systems, apparatuses, controllers, software, and composition of matter associated with electrochemical cells operatively coupled with fuse(s) configured to (A) during flow of current below at least one threshold, allow flow of the current through the fuse and relative to the cell, and (B) when the flow of current through the fuse is equal to or greater than the at least one threshold, curtail current from flowing through the fuse. The fuse(s) can be located (i) in an interior of the housing or (ii) at a seal of the housing.
Resumen de: WO2025178971A1
The present inventions relate to methods, systems, apparatuses, controllers, software, and composition of matter associated with electrochemical cells operatively coupled with spring(s) that (I) maintain the cell at an overpressure relative to an ambient pressure external to the housing and/or (II) reduce an extent of variability in the overpressure during use of the device.
Resumen de: WO2025179208A1
A method of processing a battery including an electrode including pores filled with a gas involves applying a formation current to the battery, the formation current comprising at least one frequency attribute, the at least one frequency attribute based on an assessed dielectric attribute associated with wetting the pores with electrolyte. A method of processing a battery including a battery comprising an electrode involves applying a formation current to the battery comprising at least one frequency attribute, the at least one frequency attribute based on an assessed dielectric attribute associated with forming a solid electrolyte interphase (SEI) layer on the electrode.
Resumen de: WO2025179162A1
One example provides a method of recovering fluoride from wastewater with a first, higher concentration of fluoride. The method comprises adding a metal cation to the wastewater that reacts with fluoride in the wastewater to form a precipitate comprising a fluoride compound that is less soluble in water than lithium fluoride to produce treated wastewater with a second, lower concentration of fluoride; and recovering the precipitate.
Resumen de: WO2025178450A1
The present invention relates to a door opening and closing system applied to a case having an accommodation space therein. The door opening and closing system according to an embodiment of the present invention includes: a door unidirectionally movable to cover the accommodation space; a rod bar coupled to the door; a handle coupled to the rod bar; a roller support coupled to the rod bar and moving integrally with the rod bar; a roller coupled to an end of the roller support; and a roller bracket coupled to the case. When a user moves the handle up and down, the rod bar moves integrally with the handle. The roller bracket extends along a moving path of the roller and includes a rail corresponding to the roller.
Resumen de: WO2025178460A1
An electrode composite material and a method of making same are disclosed. A mixture that includes lithium sulfide (Li2S) particles containing a Li2S compound, carbon particles, and halogenated lithium phosphorous sulfide (LPS-X) particles containing an LPS-X (X is F, Cl, Br, and/or I) compound are provided. The LPS-X particles have crystallinity which can be confirmed with XRD of the LPS-X particles or the mixture showing XRD peaks indicative of crystalline LPS-X. The mixture does not include lithium phosphorous sulfide (LPS) particles made of an LPS compound. The mixture is ball-milled to provide a ball-milled composite material. At least part of the LPS-X compound contained in at least part of the LPS-X particles is converted to the LPS compound. XRD of the ball-milled composite material shows none of the XRD peaks indicative of crystalline LPS-X.
Resumen de: WO2025178245A1
The present invention relates to a positive electrode active material, a method for regenerating the positive electrode active material, and a secondary battery. According to the present invention, there is the effect of providing a positive electrode active material, a method for regenerating the positive electrode active material, a secondary battery, and the like, in which, by detaching and recovering a positive electrode active material from a waste positive electrode, applying a coating agent thereonto, and controlling firing conditions and the like of the positive electrode active material on which the coating agent is applied, a structure similar to the crystal structure of a fresh positive electrode active material can be exhibited while reducing a region where a compound having an olivine structure is mixed in a carbon coating layer on the surface of the positive electrode active material, thus providing satisfactory battery characteristics.
Nº publicación: WO2025178361A1 28/08/2025
Solicitante:
REXCEL CO LTD [KR]
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Resumen de: WO2025178361A1
The present invention relates to a nonaqueous electrolyte for secondary batteries and a secondary battery comprising same. The secondary battery comprising the nonaqueous electrolyte for secondary batteries according to the present invention can have improved room-temperature lifespan performance due to an increase in capacity retention rate and a reduction in resistance.
BOPI
Sede Electrónica
