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1057
resultados
Última actualización
21/11/2025 [07:10:00]
Resultados 650 a 675 de 1057
Resumen de: EP4648201A1
Aspects of the present invention relate to a battery enclosure gas management system. The battery enclosure gas management system comprises a gas displacer arranged to drive venting of gas that surrounds at least one of one or more battery cells in a battery enclosure. The venting is to outside of the battery enclosure via an exit vent of the battery enclosure. The gas displacer is selectively activatable to drive the venting.
Resumen de: EP4648124A1
A secondary battery includes a negative electrode, a positive electrode, and an electrolyte, where the negative electrode includes a negative electrode current collector and a negative electrode mixture layer disposed on at least one surface of the negative electrode current collector. A thickness of the negative electrode mixture layer is T µm, the negative electrode mixture layer contains carbon nanotubes and silicon-based particles, an average particle size of the silicon-based particles is D µm, and 3.7 ≤ 10T/D<2> ≤ 24.9. The electrolyte includes a dinitrile compound and a trinitrile compound.
Resumen de: EP4648195A1
A box assembly (11), which relates to the technical field of batteries. The box assembly (11) is used to accommodate a battery cell (12), the box assembly (11) comprising a box body (111), a bottom protective plate (112) and a thermal management component (113), and the box body (111) comprising a bottom plate (1113) used to support the battery cell (12). The bottom protective plate (112) is connected to the bottom plate (1113). At least a portion of the thermal management component (113) is disposed between the bottom plate (1113) and the bottom protective plate (112), the thermal management component (113) being used to adjust the temperature of the battery cell (12) by means of the bottom plate (1113). In this design, the thermal management component (113) is located outside the box body (111); when liquid leakage or corrosion perforation occurs to the thermal management component (113), this reduces the risk of thermal runaway of the battery cell (12) caused by contact between leaked liquid and the battery cell (12) when the thermal management component (113) is located in the box body (111), which causes insulation failure of the battery cell (12). Accordingly, the reliability of the battery during use is increased.
Resumen de: EP4648172A1
The present invention relates to a cell test jig, and more particularly, to a cell test jig, which is capable of simulating an environment that is identical or similar to that in a battery module or a battery pack, so that even when testing one cell, results that are identical or similar to those obtained by testing the battery module or the battery pack may be obtained.A cell test jig used for testing a cell according to the present invention includes a first plate configured to cover one surface of the cell, a second plate configured to cover the other surface that is a surface opposite to the one surface of the cell, a heating pad disposed between the first plate and the second plate and disposed adjacent to one side surface of the cell, which is configured to connect the one surface and the other surface of the cell to each other, and a cooling plate disposed between the first plate and the second plate and disposed adjacent to the other side surface of the cell, which is a surface opposite to the one side surface of the cell.
Resumen de: EP4648142A1
Disclosed are composite substrates, and rechargeable lithium batteries including the composite substrates. A composite substrate includes a support layer, a first metal layer on a top surface of the support layer, and a second metal layer on a bottom surface of the support layer. The support layer includes a first polymer and a second polymer that are different from each other. A tensile strength of the second polymer is greater than a tensile strength of the first polymer. An elongation of the first polymer is greater than an elongation of the second polymer.
Resumen de: EP4648132A1
An anode active material for a lithium secondary battery according to the embodiments of the present disclosure includes composite particles comprising carbon-based particles and silicon-containing particles including silicon and hydrogen disposed on the surface of the carbon-based particles and an H/Si ratio of the composite particles, defined by Equation 2, is 0.5% to 5.3%.
Resumen de: EP4648123A1
A negative electrode includes a carbon-based negative electrode active material and a silicon-based negative electrode active material in a predetermined content ratio, and by controlling the orientation index (0.1) of the carbon-based negative electrode active material of the negative electrode active layer including them to a certain range, it has the characteristics of high charge and discharge capacity as well as excellent lifespan characteristics. Moreover, the lithium secondary battery comprising the negative electrode has the advantage of having excellent output characteristics and can be charged in a short time even at a 1C-rate.
Resumen de: EP4647736A1
The present application discloses a helium detection system and method. A control device controls a loading manipulator to transfer a battery cell to a first main detection chamber and open a corresponding first vacuum valve, evacuates the first main detection chamber through a first vacuum pump, closes the first vacuum valve after the evacuation is completed, and performs major leak detection on the battery cell through a first negative pressure gauge; in a case where the major leak detection is passed, controls a second vacuum valve to open, to start a second vacuum pump to evacuate the battery cell, and after the evacuation, controls a first helium injection valve of a helium pipeline to open, to inject helium into the battery cell, and closes the first helium injection valve after the helium injection is completed, and performs helium detection on the battery cell through a first helium detector, thereby completing the main detection for the battery cell; whereas in a case where the major leak detection is failed, opens a vacuum breaking valve, and breaks the vacuum of the battery cell and the first main detection chamber through an atmospheric pipeline; and controls an unloading manipulator to transfer the battery cell to a re-detection chamber for re-detection, thereby capable of improving the utilization rate of vacuum resources and helium resources and improving the detection efficiency.
Resumen de: EP4648129A1
A secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte solution. A negative electrode active material of the negative electrode includes a silicon-carbon material. The electrolyte solution includes ethyl propionate and propyl propionate. Based on a total mass of the electrolyte solution, a mass percentage of the ethyl propionate is a%, and a mass percentage of the propyl propionate is b%, and 1.7 ≤ a/b ≤ 5.7. The electrolyte solution further includes at least one of vinylene carbonate, a boron-containing lithium salt, or a compound containing a structural formula represented by Formula I:where, A in Formula I is selected from C2 to C5 alkylenes.
Resumen de: EP4648141A1
Disclosed are composite substrates and rechargeable lithium batteries. The composite substrate includes a support layer, a first metal layer on a top surface of the support layer, a second metal layer on a bottom surface of the support layer, and at least one tab that is buried between the support layer and at least one of the first and second metal layers. The tab includes a buried portion and an exposed portion.
Resumen de: EP4648153A1
Disclosed are an integrated terminal, a secondary battery including the same, and a method of manufacturing the same. The integrated terminal may include a terminal assembly including a terminal member disposed to adjoin a sub-plate electrically connected to an electrode assembly of a secondary battery and a terminal insulator surrounding a side of the terminal member and a cap insulator formed along a through hole in a cap plate coupled to a case accommodating the electrode assembly and in which the through hole into which the terminal assembly is inserted is formed. When the terminal assembly is inserted into the through hole, the terminal insulator and the cap insulator may adjoin one another. A welding groove may be formed in a portion at which the terminal insulator and the cap insulator adjoin each other. The terminal insulator and the cap insulator may be welded and coupled along the welding groove.
Resumen de: EP4648211A1
An integrated terminal includes: a terminal assembly including a terminal member configured to adjoin a sub-plate electrically connected to an electrode assembly of a secondary battery and a terminal insulator that surrounds a side of the terminal member; and a cap insulator extending along a through hole in a cap plate that is coupled to a case that accommodates the electrode assembly and in which the through hole into which the terminal assembly is inserted is formed. When the terminal assembly is inserted into the through hole, the terminal insulator and the cap insulator adjoin each other, and a reinforced material is inserted into at least one of the terminal insulator and the cap insulator.
Resumen de: EP4648164A1
A gel polymer secondary battery that can selectively permeate only lithium ions within a cell and maintain a state in which a heterogenous electrolyte is isolated. Thegel polymer secondary battery includes: a cathode impregnated with a catholyte containing a first gel polymer; an anode impregnated with an anolyte containing a second gel polymer; and an electrolyte layer interposed between the cathode and anode and including a third gel polymer. The third gel polymer content of the electrolyte layer is larger than the first gel polymer content of the cathode and the second gel polymer content of the anode.
Resumen de: EP4648130A1
A secondary battery and an electronic device. The secondary battery includes a negative electrode, a positive electrode, and an electrolyte solution. The negative electrode includes a negative current collector and a negative electrode composite layer disposed on at least one surface of the negative current collector. The negative electrode composite layer contains a conductive agent and silicon-carbon composite particles. An average particle diameter of the silicon-carbon composite particles is D µm. The silicon-carbon composite particles include silicon and carbon, and based on a sum of masses of the silicon and carbon, a mass percent of the silicon is C%, 0.21 ≤ C/D<2> ≤ 1.2. The electrolyte solution comprises propylene carbonate and ethylene carbonate. Based on a mass of the electrolyte solution, a sum of mass percent of the propylene carbonate and the ethylene carbonate is H%, 15 ≤ H ≤ 50.
Resumen de: EP4647190A1
The present disclosure relates to a crimping apparatus for a battery cell, and the technical object to be achieved is to provide a crimping apparatus for a battery cell capable of improving the formation quality of a battery cell. To this end, the present disclosure provides a crimping apparatus for a battery cell, which includes a lower jig disposed around a circumference of a battery can, a first upper jig which descends to come into contact with the lower jig above the battery can and presses and moves the lower jig toward the battery can, and a second upper jig which is disposed inside the first upper jig, descends along with the first upper jig, and presses an end portion of the battery can downward to bend the end portion toward a cap assembly.
Resumen de: EP4648181A1
The present disclosure includes a battery module and a battery pack including the same. A battery module according to an embodiment of the present disclosure includes: a first sub-module and a second sub-module each including a battery cell stack in which a plurality of battery cells are stacked, and a busbar assembly including a busbar electrically connected to the battery cell stack and a busbar frame covering the battery cell stack on at least one side; a module frame in which the first sub-module and the second sub-module are housed; and a flame preventing member located between the first sub-module and the second sub-module, wherein one end of the first sub-module and the other end of the second sub-module are electrically connected to each other.
Resumen de: EP4647294A1
A mobile apparatus, a charging control method, and a chip are provided, and relate to the field of electric vehicle (10) charging. The charging control method is applied to the mobile apparatus. The mobile apparatus is configured to connect to a charging pile (20) to form a charging system. The charging pile is configured to charge a cell (101) of the mobile apparatus. The method includes: detecting a temperature of the cell; and if the temperature of the cell is equal to a target temperature, disabling a heating function for the cell until charging ends, where a temperature change of the cell is positively correlated with internal resistance of the cell and a charging current provided by the charging pile. This solution can implement fast charging of the cell.
Resumen de: EP4647787A1
Procédé (100) de surveillance d'un état de santé SOH d'une batterie, comprenant des étapes de :- Charge (110) initiale de la batterie jusqu'à atteindre une première tension U<sub>stop</sub> prédéterminée, la charge initiale de la batterie étant effectuée en appliquant un courant constant,- Mise au repos (120) de la batterie pendant une durée adaptée pour qu'à une fin de la mise au repos :- une tension de la batterie soit égale, ou suffisamment proche, à une tension en circuit ouvert OCV de la batterie, et- une température de la batterie soit stable,- obtention (130) d'un indicateur de la batterie parmi :- la tension en circuit ouvert OCV de la batterie,- une résistance en courant continu DCR de la batterie,- obtention (140) d'un modèle de la batterie prenant en entrée l'indicateur de la batterie et fournissant en sortie l'état de santé SOH de la batterie, et- détermination (150) de l'état de santé SOH de la batterie en fournissant au modèle obtenu (140) l'indicateur obtenu (130).
Resumen de: EP4648071A1
A magnetizer may include a first frame member including a first accommodation portion configured to accommodate two or more first magnets arranged along a first direction with a same first polarity, and a second frame member including a second accommodation portion configured to accommodate two or more second magnets arranged with a second polarity different from the first polarity, and configured to maintain a state of being in contact with the first frame member by an attractive force between the two or more first magnets and the two or more second magnets.
Resumen de: EP4648115A1
The present disclosure relates to an electrode processing device, and provides an electrode processing device including an electrode cutting unit including a first cutter that cuts an electrode; and a deburring unit including a second cutter that cuts a burr protruding from the cut electrode cutting surface in the cutting direction of the first cutter.
Resumen de: EP4648125A1
A positive electrode sheet, a secondary battery, and an electric device. The positive electrode sheet comprises a current collector and a positive electrode film layer located on at least one side of the current collector; the positive electrode film layer comprises a first area and a second area; the particle size distribution index of an active material in the first area is smaller than the particle size distribution index of an active material in the second area, wherein the particle size distribution index is the ratio of the standard deviation of the particle size of an active material to the average particle size thereof, the first area is an area where the positive electrode film layer extends vertically from the surface on the side close to the current collector to the positive electrode film layer within a distance h1, the second area is an area where the positive electrode film layer extends vertically from the surface on the side close to the current collector to the positive electrode film layer with a distance from h1 to H, and H is the thickness of the positive electrode film layer, and h 1 is less than H.
Resumen de: EP4648160A1
L'invention concerne un électrolyte solide de batterie au lithium, comprenant un polymère de la famille des poly(carbonate d'alkylène) et un sel de lithium de formule (III) :
Resumen de: EP4648117A1
The current disclosure includes a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the negative electrode. The negative electrode for the rechargeable lithium battery includes a current collector and a negative active material layer including a negative active material on the current collector, wherein a PCR (Plane angle Change Ratio) value is about 5.0 or less.
Resumen de: EP4648180A1
A heat exchanger (A), through which a fluid to be heat-exchanged with a battery mounted on a vehicle flows, includes: a plurality of heat exchange modules (1) each having a heat exchange flow path formed inside by overlapping and joining a plurality of metal plates, a supply port through which the fluid is sent to the heat exchange flow path, and a discharge port through which the fluid is sent out from the heat exchange flow path; a supply flow path module (2) joined to each of the plurality of heat exchange modules and configured to supply the fluid from the supply port of each of the plurality of heat exchange modules; and a discharge flow path module (3) joined to each of the plurality of heat exchange modules and configured to discharge the fluid from the discharge port of each of the plurality of heat exchange modules. In at least one of the supply flow path module and the discharge flow path module, a flow path through which the fluid flows is formed inside by overlapping and joining a plurality of metal plates.
Nº publicación: EP4648137A1 12/11/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
Resumen de: EP4648137A1
A positive electrode active material includes a first particle containing a compound represented by Formula 1 below and having a first average particle diameter, wherein a total doping amount of Mg and Ti is about 500 ppm to about 3000 ppm, and a doping amount of Ti/a doping amount of Mg>1: Formula 1 LiaFexMgyTizPO4-cwhere, in Formula 1 above, 0.8
BOPI
Sede Electrónica
