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586
resultados
Última actualización
25/08/2026 [07:49:00]
Resultados 200 a 225 de 586
Resumen de: WO2026173302A1
The present invention relates to a positive electrode active material exhibiting improved capacity characteristics, and to a positive electrode for a lithium secondary battery and a lithium secondary battery, each comprising same. The positive electrode active material comprises a lithium transition metal oxide, wherein the lithium transition metal oxide has a molar ratio of lithium to the total number of moles of transition metals excluding lithium of greater than 1, and comprises, as ions of the transition metals, only divalent manganese ions ((Mn2+), trivalent manganese ions (Mn3+), and tetravalent titanium ions (Ti4+). The molar content of the divalent manganese ions (Mn2+) is 10 to 40 mol% and the molar content of the trivalent manganese ions (Mn3+) is 33 to 73 mol%, relative to the total content of the transition metals excluding lithium.
Resumen de: DE102026105927A1
Es wird eine Festkörperzustandsbatteriezelle vorgestellt. Die Festkörperbatteriezelle weist einen Bipolarstapel auf, der ein Paar von Elektrodenbaugruppen beinhaltet, die jeweils in elektrischem Kontakt stehen mit und gegen gegenüberliegende Seiten eines Stromabnehmers aus gesinterter Metallfolie komprimiert sind. Die Batteriezelle beinhaltet ferner eine Metallpulverschicht, die auf dem bipolaren Stapel positioniert ist.
Resumen de: WO2026170819A1
A lithium-ion battery, comprising a positive electrode, a negative electrode and an electrolyte solution, wherein the positive electrode comprises a positive electrode active material layer, the positive electrode active material layer comprises a positive electrode active material and a lithium-replenishing material, and the lithium-replenishing material comprises a lithium-rich oxide; the negative electrode comprises a negative electrode active material layer; the ratio of the molar weight of Li in the positive electrode active material layer and the negative electrode active material layer to the molar weight of metal elements other than Li in the positive electrode active material layer is R; the electrolyte solution comprises a non-aqueous solvent and an additive; the non-aqueous solvent comprises dimethyl carbonate, and the mass percentage of dimethyl carbonate in the electrolyte solution is E%; the mass percentage of the additive in the electrolyte solution is A%; and in the lithium-ion battery, E, A and R satisfy: 0.03≤E*A/R≤35.
Resumen de: WO2026171291A1
A lithium-manganese dioxide battery, comprising a positive electrode sheet, a negative electrode sheet, a separator and an electrolyte solution, wherein a positive electrode active material of the positive electrode sheet comprises manganese dioxide, and the negative electrode sheet comprises a lithium metal negative electrode; and the separator comprises a base membrane and a coating located on the surface of at least one side of the base membrane, with the coating comprising a polymer solid electrolyte and an inorganic solid electrolyte. The separator in the lithium-manganese dioxide battery is functionalized by means of a combined coating of the polymer solid electrolyte and the inorganic solid electrolyte, such that the liquid retention capacity of the separator is increased, and the defect of the reduced amount of separator electrolyte solution caused by the expansion of a positive electrode during a discharge process is avoided.
Resumen de: WO2026170613A1
Provided in the present application are a battery cell assembly, a battery module, a battery pack and an electrical device, belonging to the technical field of battery packaging. The battery cell assembly comprises: a battery cell having two main planes opposite to each other in a first direction; and an elastic assembly provided on the two main planes and configured to buffer expansion of the battery cell during charging. The elastic assembly comprises: a first elastic member, which is provided to cover the middle portions of the two main planes, the first elastic member having a first hardness; and a second elastic member, which is provided to cover the portions of the two main planes that are not covered by the first elastic member, the second elastic member having a second hardness different from the first hardness. The technical problem to be solved is how to limit expansion of a battery cell while protecting the battery cell. The present application achieves the technical effects of better buffering expansion of different portions of the main planes of the battery, thereby limiting excessive expansion of the battery cell and protecting the battery cell.
Resumen de: WO2026172879A1
This cylindrical battery comprises an electrode body in which a positive electrode (11) and a negative electrode are wound with a separator therebetween. The electrode body has an electrode lead (20) connected to the positive electrode (11) or the negative electrode, the electrode lead (20) includes a first portion (20a) disposed on the positive electrode (11) or the negative electrode and a second portion (20b) extending from the positive electrode (11) or the negative electrode, and a small piece part (20c), which has branched into at least two pieces, is formed in at least the first portion (20a).
Resumen de: WO2026172858A1
A battery case (20) comprises a housing (21), a first connector (22), a second connector (23), a switch (26), and a controller (29). The first connector (22) is connected to a load (43) that is outside the housing (21) by connection of a first mating connector (41). The second connector (23) is connected to a ground (44) that is outside the housing (21) by connection of a second mating connector (42). The switch (26) is provided between a positive electrode–side terminal (10A) of a battery (10) and the first connector (22). The controller (29) determines whether the second mating connector (42) has been removed from the second connector (23) while controlling the switch (26) to be in an ON state and switches the switch (26) to an OFF state upon determining that the second mating connector (42) has been removed.
Resumen de: WO2026172105A1
An aircraft battery cooling system (42) is described. The aircraft battery cooling system comprises a heat exchanger (46), a first cooling loop (48), and a second cooling loop (50). A first cooling fluid circulates between a battery (18) and the heat exchanger (48) in the first cooling loop. A second cooling fluid is directed from a ground-based cooling system to the heat exchanger (46) in the second cooling loop (50). The heat exchanger (46) is configured to transfer heat between the first and second cooling loops. The first cooling loop is fluidically isolated from the second cooling loop. A third cooling loop (52) is provided in which a third cooling fluid is directed to the heat exchanger (46) during flight. The third cooling loop (52) is fluidically isolated from the first cooling loop (48) and from the second cooling loop (50). The heat exchanger (46) is configured to transfer heat between the first and second cooling loops when on the ground and between the first and third cooling loops during flight.
Resumen de: WO2026171949A1
The present invention relates to a method for securing a battery module comprising a housing in which electrochemical cells are arranged, the method comprising detecting an indicator indicating a thermal fault in the module; generating, outside the housing, an aqueous foam from a foaming aqueous solution and a gas; introducing the aqueous foam into the housing in order to bring the aqueous foam into contact with at least a part of the electrochemical cells as soon as an indicator indicating a thermal fault in the module is detected. The present invention also relates to a particular battery module.
Resumen de: WO2026172542A1
The present invention addresses the problem of providing an inorganic fiber sheet which, even when used in close contact with an object that easily undergoes thermal expansion or cooling shrinkage, is unlikely to form a gap with the object. The problem is solved by an inorganic fiber sheet containing inorganic fibers and elastic fine particles, and having an average compressive elastic modulus of 25-80% and an average recovery rate of 15-70%.
Resumen de: DE102025105791A1
Die vorliegende Erfindung betrifft eine Vorrichtung (1) zum Auffangen von Elektrolyt (8) in einer Batteriezelle, umfassend eine Elektrolytfalle (2), die zwischen einer Elektrode (3) und einer Dichtung (4) einer Batteriezelle platziert ist
Resumen de: WO2026173337A1
The present invention relates to a secondary battery manufacturing apparatus and a secondary battery manufacturing method. The secondary battery manufacturing apparatus according to an embodiment of the present invention comprises: a tape attachment unit for attaching a first protective tape and a second protective tape so as to overlap each other with a weld portion of an electrode tab and an electrode lead interposed therebetween; and a sealing unit for forming a sealing portion by simultaneously heating and pressing, from both upper and lower sides, a portion of an overlapping area between the first protective tape and the second protective tape, excluding a central portion adhered to the weld portion.
Resumen de: US20260245864A1
0000 A composite positive electrode active material for a rechargeable lithium battery includes a composite positive electrode active material including a first positive electrode active material in a form of single particles and including a lithium nickel-based composite oxide and a second positive electrode active material in a form of secondary particles in which primary particles are agglomerated and including a lithium nickel-based composite oxide. The first positive electrode active material is included in an amount of more than about 50 wt % and less than about 100 wt % based on 100 wt % of the composite positive electrode active material. The second positive electrode active material is included in an amount of greater than 0 wt % and less than about 50 wt % based on 100 wt % of the composite positive electrode active material.
Resumen de: WO2026173286A1
The present invention relates to a cathode active material, and a cathode and a lithium secondary battery which include same. The cathode active material includes a lithium iron phosphate-based compound, and a P value calculated according to Equation 1 on the basis of the average particle diameter and the standard deviation of particle diameters of primary particles obtained from an SEM image, and the particle size distribution and crystal size of the cathode active material, satisfies a range of 12㎛-2 to 22㎛-2, thus allowing rolling density and rate characteristics to be improved.
Resumen de: US20260245871A1
A positive electrode including: a positive electrode mixture layer containing a layered rock salt oxide and an olivine compound as a positive electrode active material, in which the positive electrode mixture layer includes a first region proximate to a first surface facing a current collector in a thickness direction of the positive electrode mixture layer, a second region proximate to a second surface facing a separator in the thickness direction, and a third region that is a region between the first region and the second region in the thickness direction, and the first region and the second region contain the layered rock salt oxide at a higher concentration than the third region.
Resumen de: WO2026170890A1
Provided are a lithium secondary battery and an electric device. The lithium secondary battery comprises a positive electrode sheet, a negative electrode sheet and an electrolyte. The negative electrode sheet comprises a negative electrode current collector and a functional layer disposed on at least one side surface of the negative electrode current collector. The functional layer comprises a protective layer and a lithiophilic layer disposed between the protective layer and the negative electrode current collector, wherein the lithiophilic layer comprises a lithiophilic material, and the contact angle between the lithiophilic material and molten lithium metal is 0 to 90°; and the protective layer comprises a carbon material.
Resumen de: US20260245909A1
The technology disclosed in the present specification relates to a self-supporting electrode film. The self-supporting electrode film includes positive electrode active material particles. In addition, the self-supporting electrode film includes a first polymer. Further, the self-supporting electrode film includes a second polymer. The first polymer has lithium-ion conductivity. The second polymer has a fibrillated state.
Resumen de: DE102025154187A1
Eine Festkörperbatteriezelle umfasst C Kathodenelektroden mit einer auf einem Kathodenstromkollektor angeordneten Kathodenaktivmaterialschicht, S Separatoren und A Anodenelektroden mit einer auf einem Anodenstromkollektor angeordneten Anodenaktivmaterialschicht, wobei C, A und S ganze Zahlen sind. Die Anodenaktivmaterialschicht umfasst Ferrosiliziummikroteilchen mit einem Siliziumgerüst und eingebetteten Ferrosiliziumdomänen. Die Ferrosiliziummikroteilchen können durch Reinigen und Zerkleinern von Ferrosiliziumgestein hergestellt werden, um zerkleinertes Ferrosilizium zu erzeugen. Das zerkleinerte Ferrosilizium wird gemahlen, um Ferrosiliziummikroteilchen zu erzeugen. Die Ferrosiliziummikroteilchen werden mit Hilfe eines Siebes vom zerkleinerten Ferrosilizium getrennt. Die Ferrosiliziummikroteilchen umfassen ein Siliziumgerüst und eingebettete Ferrosiliziumdomänen. Die Ferrosiliziummikroteilchen werden mit einem Bindemittel gemischt. Die Anodenelektrode umfasst die Ferrosiliziummikroteilchen und das Bindemittel.
Resumen de: US20260245944A1
An apparatus for manufacturing a poly-coupled article comprises: a feed unit configured to feed at least one strip-shaped article, a coupling unit for coupling said strip-shaped article in a semi-finished product with an overlapped-layer structure, a first moving device configured to displace said semi-finished product along an operative path between a first position and a second position, distinct from each other, a finishing device configured to perform a finishing processing on said poly-coupled article, and a second moving device configured to displace the finishing device so as to perform said finishing processing, at least partially, while the semi-finished product is displaced between said first position and said second position.
Resumen de: US20260245943A1
0000 An apparatus for manufacturing an electrochemical cell comprises: a feed unit configured to feed conductor elements and at least one separator element, a coupling unit for coupling said conductor elements and said at least one separator element into a semi-finished product with an overlapped-layer structure, a first moving device configured to displace said semi-finished product along an operative path between a first position and a second position, distinct from each other, a finishing device configured to perform a finishing processing on said electrochemical cell, and a second moving device configured so as to displace the finishing device so as to perform said finishing processing, at least partially, while the semi-finished product is displaced between said first position and said second position, so that said semi-finished product is displaced along said operative path with a continuous motion.
Resumen de: US20260245873A1
0000 A method of forming a composite structure comprising an alkali metal or alkali earth metal layer, eg., a lithium layer and a layer comprising a metal other than an alkali metal or alkali earth metal, e.g. silver, on a surface of the alkali or alkali earth metal layer, the method comprising mechanical application of a powder comprising the metal other than an alkali metal or alkali earth metal onto the alkali or alkali earth metal layer surface. The composite structure may be used in a metal battery, e.g., a lithium battery.
Resumen de: US20260241490A1
A laser notching apparatus may include an unwinder having an electrode sheet wound therearound. The apparatus may also include a notching drum spaced apart from the unwinder by a predetermined distance, and the notching drum may support the electrode sheet. The apparatus may also include a laser radiator to notch the electrode sheet. The apparatus may also include a rewinder spaced apart from the notching drum by a predetermined distance, and the rewinder may wind the notched electrode sheet. The electrode sheet wound around the unwinder may include a first surface constituting an inner surface and a second surface constituting an outer surface, and the notching drum may be disposed so as to face the first surface of the electrode sheet.
Resumen de: US20260245999A1
A battery cell disposal apparatus includes an input unit configured to receive a battery cell therethrough and a processing unit configured to process the battery cell received through the input port. The input unit includes an input port including an input hole and an input slope inclined downwards toward the input hole, a distribution guide located under the input hole, the distribution guide having an apex provided at an upper surface thereof, and at least one connecting shaft configured to connect an edge of the input hole and an edge of the distribution guide to each other.
Resumen de: US20260246273A1
0000 Power control systems for battery energy storage systems using second-life electric vehicle (EV) batteries are disclosed. In one aspect, the power control system includes a hardware architecture including an AC/DC converter in which an AC side of the AC/DC converter is connected to an electrical grid via a first terminal and a DC side of the AC/DC converter is connected to a DC bus and a plurality of DC/DC converters. A primary side of each of the DC/DC converters is connected to the DC bus and a second side of each of the DC/DC converters is connected to one of the EV batteries via a corresponding battery terminal. The power control system further includes a controller configured to coordinate the AC/DC converter and the DC/DC converters to maintain power equilibrium and to realize independent power control of each of the batteries and the grid-tied interface.
Nº publicación: US20260245984A1 20/08/2026
Solicitante:
CELGARD LLC [US]
Celgard, LLC
Resumen de: US20260245984A1
Described herein is a coated battery separator where the coating is provided on one or both sides of the battery separator. The coating comprises polytetrafluoroethylene (PTFE) particles and the coating is an outermost coating layer. In some cases, the coating may also comprise ceramic particles.
BOPI
Sede Electrónica
