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1212
resultados
Última actualización
18/01/2026 [07:06:00]
Resultados 450 a 475 de 1212
Resumen de: EP4679662A1
A power control device that controls transmission of power between a plurality of batteries connected in parallel and a load comprises: a power synthesis unit that synthesizes the power output from the plurality of batteries; and a power control unit that controls an output of the power from each of the plurality of batteries, and that also controls driving of the load with the power output from the power synthesis unit, wherein the power control unit determines a power value caused to be output from each of the plurality of batteries by performing: a setting process of setting a power limit value for limiting the output of the power for each of the plurality of batteries, based on temperature information of each of the plurality of batteries; and a distribution process of distributing a demand power value demanded for driving the load to the plurality of batteries so that a power value output from each of the plurality of batteries does not exceed the power limit value.
Resumen de: EP4679602A1
A battery assembly according to certain embodiments of the present disclosure includes: a plurality of battery cells; a frame that houses the plurality of battery cells; an inflow port and an outflow port for circulating a cooling material into the inside of the frame; and a venting unit provided on one surface of the frame and discharging gas inside the frame when the pressure inside the frame is equal to or greater than a specified pressure. The cooling material flowed in through the inflow port directly cools the battery cells and is discharged through the outflow port.
Resumen de: EP4679592A1
The present application discloses a battery and an electric apparatus. The battery includes: a first battery cell assembly, the first battery cell assembly including at least one first battery cell, the first battery cell being internally provided with a first elastic buffer pad; a second battery cell assembly, the second battery cell assembly including at least two second battery cells, the at least two second battery cells being disposed on both sides of the first battery cell assembly along a thickness direction of the first battery cell assembly, where the thickness direction of the first battery cell assembly is consistent with a thickness direction of the first battery cell.
Resumen de: EP4679597A1
The present application discloses a battery cell, a battery, and an electric apparatus. The battery cell includes: a housing; at least one electrode assembly, the electrode assembly being disposed within the housing; at least one elastic buffer pad, the elastic buffer pad including an elastic buffer layer and a support layer disposed on at least one side of the elastic buffer layer, the support layer being configured to support the elastic buffer layer; the elastic buffer pad being disposed between the electrode assembly and the housing, and/or between two adjacent electrode assemblies.
Resumen de: EP4678597A1
There is provided carbonaceous substance-coated graphite particles that exhibit an excellent cycle capacity maintaining characteristic when used as a negative electrode material for a lithium ion secondary battery. The carbonaceous substance-coated graphite particles include: graphite particles; and a carbonaceous substance covering at least part of surfaces of the graphite particles. An elastic modulus of the carbonaceous substance-coated graphite particles determined using a scanning probe microscope is not less than 10 GPa.
Resumen de: EP4678596A1
There is provided carbonaceous substance-coated graphite particles that are excellent in all of output characteristic, fast charging characteristic, and cycle characteristic when used as a negative electrode material for a lithium ion secondary battery. The carbonaceous substance-coated graphite particles include graphite particles and a carbonaceous substance covering at least part of surfaces of the graphite particles. A mass reduction starting temperature when the carbonaceous substance-coated graphite particles are heated in a water vapor atmosphere is 800°C to 980°C, and a content of the carbonaceous substance is 0.1 to 15.0 parts by mass with respect to 100.0 parts by mass of the graphite particles.
Resumen de: EP4679536A1
Provided is a composition for a nonaqueous secondary battery positive electrode, which can reduce the occurrence of the corrosion of a positive electrode for a nonaqueous secondary battery through the prevention of an increase in pH of a slurry for a nonaqueous secondary battery positive electrode, and can improve the adhesiveness and charge-discharge durability characteristic of the positive electrode for a nonaqueous secondary battery.The composition for a nonaqueous secondary battery positive electrode according to the present invention includes: a polymer (A); at least one kind selected from a group consisting of a polyamine compound (B) and a boron-containing compound (C); and a liquid medium (E). When the total of repeating units in the polymer (A) is defined as 100 mass%, the polymer (A) contains 5 mass% to 75 mass% of a repeating unit (a1) derived from an aromatic vinyl compound, and 20 mass% to 90 mass% of a repeating unit (a2) derived from an unsaturated carboxylic acid ester.
Resumen de: EP4679620A1
A cylindrical battery (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; an exterior can (20) in which the electrode body (14) is accommodated; a sealing body (19) which is mounted on a grooved part (28) that is formed along the circumferential direction of the exterior can (20) with a gasket (24) therebetween; and an upper insulation board (30) which is disposed between the grooved part (28) and the electrode body (14). The upper insulation board (30) has a body (31) which is mounted on the electrode body (14), and a folded part (32), the outer circumferential part of which is folded towards the body (31). The upper insulation board (30) is biased by the folded part (32) towards the electrode body (14).
Resumen de: EP4679598A1
Example embodiments provide a pack housing. The pack housing includes a plurality of plates coupled to each other, and side walls coupled to the plurality of plates and each including a plate part coupled to the plurality of plates, a side wall part perpendicular to the plate part, and a wing part spaced apart from the plate part with the side wall part between the wing part and the plate part, in which the plate part of each of the side walls includes a cavity, and each of the side walls includes an impact transfer structure horizontally overlapping the cavity of the plate part of each of the side walls.
Resumen de: EP4679114A1
The invention provides a battery pack diagnosis method that improves calculation accuracy of an energy capacity of a battery pack.The battery pack diagnosis method includes a step of obtaining detection data including a current and a temperature of a battery pack having a configuration in which a plurality of cells are connected in series and a voltage of each of the cells, a step of obtaining function data of an open circuit voltage and a resistance which are functions of a charging state of each of the cells, a step of creating a resistance table of each of the cells using the function data and the detection data, a step of calculating the charging state of each of the cells using the current, the temperature, and the voltage of each of the cells, a step of calculating a charge capacity of each of the cells, the resistance, and a charging state per cell, a step of calculating an energy capacity of the battery pack using the charge capacity, the charging state per cell, and the resistance, a step of diagnosing a value of the calculated energy capacity of the battery pack, and a step of deleting a value of the energy capacity determined to be an abnormality by the diagnosis and recalculating the energy capacity of the battery pack.
Resumen de: EP4678468A1
In a thermal management system (1), during temperature rise control for a power storage device (173), a switching device (180, 190) is controlled such that a first connection flow path (30) connecting a first flow path (170b), a second flow path (130b), and a fourth flow path (170a) is formed, and a radiator (122) is separated and independent from the first connection flow path (30).
Resumen de: EP4678467A1
An object is to provide a thermal management system capable of achieving both effective use of heat generated from a drive device and efficient temperature rise in a power storage device. A thermal management system (1) includes: a power storage device (173) that exchanges heat with a first flow path (170b); a drive device (133) that exchanges heat with a second flow path (130b); a radiator (122) provided in a third flow path (130a); a chiller (160) provided in a fourth flow path (170a); and a switching device (180, 190). When the power storage device (173) is raised in temperature, the switching device disconnects the third flow path from other flow paths, forms a circuit in which a heat medium circulates through the first flow path and the second flow path, and forms a circuit in which the heat medium circulates through the fourth flow path.
Resumen de: EP4679556A1
A Problem to be Solved To increase a utilization rate of a positive electrode active material in an alkaline storage battery. Solution An alkaline storage battery 1 is an alkaline storage battery in which an electrode group formed by winding a positive electrode plate 3 and a negative electrode plate 4 with a separator 5 interposed therebetween is housed in an outer can together with an alkaline electrolyte solution. The positive electrode plate contains a positive electrode active material that contains nickel hydroxide. The nickel hydroxide is of an α-type. The alkaline electrolyte solution in the outer can is in an amount of V (cm<3>). The alkaline storage battery has a discharge capacity of Q (Ah). A solution/capacity ratio expressed by V/Q is 2.7 cm<3>/Ah or more.
Resumen de: EP4679611A1
To provide an insulation film which has an excellent insulation property and heat resistance, which does not require a winding operation using a ceramic tape or the like, which does not have a problem of winding unevenness, a gap, or peeling off, and which can even be easily cope with a conductive base material having a complicated shape. In an insulation film (1), at least an inorganic material (20) is dispersed in a first matrix (10) containing silicone. A material of the first matrix (10) or a material of a second matrix having a component different from that of the first matrix (10) may be used for impregnation. The insulation film (1) is formed by dip coating, for example.
Resumen de: EP4678666A1
This application provides a fluoropolymer, a preparation method therefor, a positive electrode plate, a secondary battery, and an electric device. The fluoropolymer comprises a structural unit derived from vinylidene fluoride and a structural unit derived from an unsaturated carboxylic acid monomer, wherein a weight average molecular weight of the fluoropolymer ranges from 5 million to 9 million, and optionally, from 5 million to 8 million.
Resumen de: EP4679513A1
A secondary battery includes a negative electrode sheet (20), a positive electrode sheet (10), and a separator (122) located between the positive electrode sheet and the negative electrode sheet. The negative electrode sheet includes the negative active material layer (26) includes a negative straight region (24) and a negative thinned region (22) located at one end of the negative straight region in a first direction. The positive electrode sheet (10) includes the positive active material layer (16) includes a positive straight region (14) and a positive thinned region (12) located at one end of the positive straight region away from the first direction. In the first direction, the positive active material layer includes a protruding portion (162) that extends beyond the negative straight region. The protruding portion overlaps with an orthogonal projection of the negative thinned region in a second direction perpendicular to the first direction.
Resumen de: EP4679530A1
The present invention relates to a positive electrode active material, and to a positive electrode active material capable of resolving both an issue of a typical secondary particle and an issue of a single particle, wherein the positive electrode active material includes a particle, such as a typical single particle, as a primary particle, and a secondary particle formed by aggregation of a plurality of primary particles, and may thus improve energy density through excellent density characteristics as well as cell characteristics, such as improved lifetime and reduced gas generation amount of a lithium secondary battery, and a positive electrode and a lithium secondary battery which include the same.
Resumen de: EP4679529A1
The present invention relates to a positive electrode active material, and a positive electrode and a lithium secondary battery which include the same. The positive electrode active material can resolve both an issue of a typical secondary particle and an issue of a single particle, wherein the positive electrode active material includes a particle, such as a typical single particle, as a primary particle, and a secondary particle formed by aggregation of a plurality of primary particles, and may thus improve energy density through excellent density characteristics as well as cell characteristics, such as improved lifetime and reduced gas generation amount of a lithium secondary battery.
Resumen de: EP4679528A1
The present invention relates to a positive electrode active material, and to a positive electrode active material which may resolve both an issue of a typical secondary particle and an issue of a single particle, wherein the positive electrode active material includes a particle, such as a typical single particle, as a primary particle, and a secondary particle formed by aggregation of a plurality of primary particles, and may thus improve energy density through excellent density characteristics as well as cell characteristics, such as improved lifetime and reduced gas generation amount of a lithium secondary battery, and a positive electrode and a lithium secondary battery which include the same.
Resumen de: EP4679511A1
The present invention relates to a positive electrode active material capable of simultaneously solving the problems of conventional secondary particles and single particles, and a positive electrode and a lithium secondary battery comprising the same, wherein the positive electrode active material includes a secondary particle containing the same particles as the conventional single particles as primary particles and formed by aggregating a plurality of primary particles, whereby it is possible to improve not only cell characteristics such as improved lifespan of the lithium secondary battery and reduced gas generation but also energy density due to excellent density characteristics.
Resumen de: EP4679535A1
To provide a CNT-containing powder for an electrode, which has an excellent action of improving electrical conductivity when used as an electrically conductive aid for an electrode of a power storage device, a composite for an electrode and an electrode mixture paste capable of obtaining an electrode having excellent electrical conductivity by using the CNT-containing powder for an electrode, and an electrode for a power storage device and a power storage device using the electrode mixture paste. A CNT-containing powder for an electrode including a carbon nanotube (CNT), a dispersant, and water, in which 100 to 200 parts by weight of the dispersant is contained with respect to 100 parts by weight of the CNT, a water content is 10 to 20 wt%, and an index value of volume resistivity is 61% or less. (Index value of volume resistivity = 100 × (volume resistivity of electrode X prepared using CNT-containing powder for electrode)/(volume resistivity of electrode Y prepared using powder obtained by drying CNT-containing powder for electrode to water content of less than 1 wt%))
Resumen de: EP4679617A1
A voltage detection device (20A) includes a plurality of voltage detection terminals (210) and a plurality of voltage detection lines (220) electrically connected to the plurality of voltage detection terminals (210). The voltage detection lines (220) electrically connected to adjacent voltage detection terminals (210) are drawn through a region between the adjacent voltage detection terminals (210).
Resumen de: CN120814105A
An exhaust structure for a battery pack. The present invention relates to a venting structure 100 for a battery pack 10 comprising a plurality of battery modules 12. The vent structure 100 includes a plurality of first tubular members 110 having a first portion 112 connected to a plurality of battery cells of the battery module 12, and a second portion 114 distal from the first portion 112. The first portion 112 is configured to discharge one or more gases from the battery module 12 to the second portion 114 when pressure accumulates within the battery module 12. The vent structure 100 also includes a second tubular member 120 connected to a second portion 114 of each of the first tubular members 110 and having a common outlet 120A. The exhaust structure 100 also includes a third member 130. The third member 130 is connected to a common outlet 120A of the second tubular member 120.
Resumen de: EP4679531A1
A composite lithium manganese iron phosphate positive electrode material, and a preparation method therefor and a use thereof. The composite lithium manganese iron phosphate positive electrode material comprises a lithium iron phosphate core (1), and an iron phosphide intermediate layer (2) and a composite coating layer sequentially stacked on the surface of the lithium iron phosphate core (1), the composite coating layer comprising a lithium manganese iron phosphate material (3) coated with a carbon material (4). A unique structural design enables the positive electrode material to have excellent electrochemical performance.
Nº publicación: EP4679547A1 14/01/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Resumen de: EP4679547A1
A secondary battery includes a case; and an electrode assembly and a conductive plate accommodated in the case, the electrode assembly includes a first electrode assembly part and a second electrode assembly part, a partition wall is between the first electrode assembly part and the second electrode assembly part, the conductive plate includes a first conductive plate on the electrode assembly and a second conductive plate under the electrode assembly, the first conductive plate includes a first conductive part and a second conductive part that are insulated by an insulating member, the first conductive part is electrically connected to the first electrode assembly part, the second conductive part is electrically connected to the second electrode assembly part, and the second conductive plate is electrically connected to the first electrode assembly part and the second electrode assembly part.
BOPI
Sede Electrónica
