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207
resultados
Última actualización
15/07/2026 [08:12:00]
Resultados 150 a 175 de 207
Resumen de: WO2026147144A1
The present invention relates to a lithium secondary battery, and a battery module and a battery pack including same, the lithium secondary battery including: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein the positive electrode active material includes a lithium nickel-based oxide having a Ni content of 50 mol% to 75 mol% among all metals excluding lithium, the negative electrode active material includes 50 wt% to 100 wt% of artificial graphite, and the negative electrode has a negative electrode density 1.52g/cm3 or less as defined by the following equation (1). Equation (1): negative electrode density = (25 × La) / Ta In equation (1), La represents the cross-sectional loading amount of the negative electrode (unit: g/25cm2), and Ta represents a value obtained by subtracting the thickness of the negative electrode current collector from the total thickness of the negative electrode (unit: cm).
Resumen de: WO2026143451A1
Disclosed in the present application are a cylindrical battery and an electronic device. A housing comprises a first wall portion and a second wall portion that are disposed opposite each other in an axial direction of the cylindrical battery. A first current collector disc is disposed between an electrode assembly and the first wall portion, and a second current collector disc is disposed between the electrode assembly and the second wall portion. The first current collector disc comprises a first portion, a second portion, and a first connection section disposed between the first portion and the second portion. The second current collector disc comprises a third portion, a fourth portion, and a second connection section disposed between the third portion and the fourth portion. When viewed in the axial direction of the cylindrical battery, an included angle α is formed between the first connection section and the second connection section, where 45°≤α≤135°. The risk of a connection failure between the first current collector disc and the electrode assembly and/or the housing and between the second current collector disc and the electrode assembly and/or the housing are reduced, thereby improving the drop resistance of the cylindrical battery.
Resumen de: WO2026147060A1
The present disclosure relates to a secondary battery and a battery pack including same. A technical problem to be solved is to provide a secondary battery capable of preventing ignition due to overcurrent and preventing re-contact of a current collecting member after melting of a bridge, and a battery pack including same. To this end, the present disclosure provides a secondary battery comprising: an electrode assembly; a case accommodating the electrode assembly and having an opening part and a closing part; a cap plate sealing the opening part; a terminal passing through the closing part and disposed to face the electrode assembly; a first current collecting member disposed between the electrode assembly and the terminal; and a fuse part provided in the first current collecting member to block electrical connection between the electrode assembly and the terminal and prevent re-contact after blocking.
Resumen de: WO2026146968A1
The present invention relates to a cathode active material capable of improving the performance of a lithium secondary battery, and more particularly, to a cathode active material comprising a lithium iron phosphate-based compound in the form of primary particles or secondary particles, the value (X) according to formula 1 of the present specification being 11.00 nm-2 or greater and 27.00 nm-2 or less, and to a cathode and a lithium secondary battery comprising the cathode active material.
Resumen de: US20260196562A1
0000 A lithium-ion battery of the present disclosure includes an anode active material layer, a separator layer, and a cathode active material layer in the stated order, and the anode active material layer, the separator layer, and the cathode active material layer are impregnated with an electrolyte solution. The anode active material layer contains a silicon-based anode active material. The electrolyte solution contains (A) lithium bis(fluorosulfonyl)imide and (B) N,N-dimethyltrifluoromethanesulfonamide. A molar ratio of a component (A) to a component (B) is 1/16 or more and 1/4 or less.
Resumen de: WO2026144558A1
The present application provides a solid-state battery and a manufacturing method therefor, a negative electrode sheet, and an electric device, and further relates to a negative-electrode-free solid-state battery. The solid-state battery comprises a negative electrode current collector, a second carbon layer, a first carbon layer, a solid electrolyte layer, and a positive electrode layer that are sequentially stacked; the second carbon layer comprises a second carbon material, and the first carbon layer comprises a first carbon material; the pore volume fraction of the second carbon material is low; the ion diffusion coefficient and/or pore volume fraction of the first carbon material is greater than that of the second carbon material; at least one of the Dv50 and average particle size of the second carbon material is less than that of the first carbon material; further, the first carbon material is a porous material.
Resumen de: WO2026144241A1
Provided are a solid-state battery and a preparation method therefor, an oxyhalide electrolyte, and an electric device. The solid-state battery comprises a positive electrode active layer, the positive electrode active layer comprises a positive electrode active material and an oxyhalide electrolyte, and the oxyhalide electrolyte has a structure of formula (1): Li1+xM1-x+0.2yM'xO1+xFyX4-2x (1), wherein M comprises a pentavalent metal ion of a Group V metal element, M' comprises a tetravalent metal ion of a Group IV metal element, X is one or more of Cl-, Br- and I-, 0.1≤x≤0.9, and 0.01≤y≤0.3.
Resumen de: WO2026144958A1
Disclosed in embodiments of the present disclosure are a battery device, an electric device, an energy storage device, and a battery cell. The battery device comprises at least two battery cells. Each battery cell comprises: a casing, comprising a casing body and a first casing wall connected to the casing body, wherein the first casing wall is located at an end portion of at least one side of the casing body in the direction of gravity, and the wall thickness of the first casing wall is greater than the wall thickness of the casing wall of the casing body; and in the direction of gravity, the at least two battery cells are stacked, and the first casing wall abuts against the adjacent battery cell.
Resumen de: WO2026145702A1
A battery device (1000) and an electric device (2000). The battery device (1000) comprises: a case (1), a battery module (2) and a heat exchange assembly (5), wherein the battery module (2) is arranged in the case (1), and the battery module (2) comprises a plurality of battery units (22) arranged in a first direction (X), each battery unit (22) comprising a housing (221) and a plurality of electrode assemblies (222) arranged in the housing (221); and the heat exchange assembly (5) is arranged on at least one side of the battery module (2) in a second direction (Z) and extends to each battery unit (22) in the first direction (X), and the wall surface having the largest area of the housing of each battery unit (22) faces the heat exchange assembly (5) and exchanges heat with the heat exchange assembly (5).
Resumen de: WO2026147038A1
A negative electrode according to exemplary embodiments of the present invention comprises: a negative electrode current collector; and a negative electrode active layer provided on at least one surface of the negative electrode current collector and containing a carbon-based negative electrode active material, wherein the negative electrode active layer has a quantified binder ratio (QBR) of 0.8 or less.
Resumen de: WO2026143345A1
The present application provides a battery pack and an electrochemical device. The battery pack comprises: at least two battery cells. Each battery cell comprises a first casing, an electrode assembly, an electrolyte solution, and a heating member, wherein the first casing accommodates the electrode assembly and the electrolyte solution, and the heating member is partially disposed in the electrolyte solution. At least one unidirectional conductive member and a heating loop are provided, the at least two battery cells are connected in series, the heating member and the at least one unidirectional conductive member are disposed on the heating loop, and heating members are connected in series and/or in parallel. The heating loop is configured to provide a flow path for a heating current, wherein a flow direction of the heating current is opposite to a flow direction of a self-discharge current of the battery pack. Therefore, the battery pack and the electrochemical device provided in the present application can reduce the adverse effect of self-discharge of the battery pack.
Resumen de: WO2026146712A1
The present invention provides a battery monitoring system and method. The battery monitoring system and method, according to a preferred embodiment of the present invention, may comprise a redundant circuit unit, which has a switching module provided between a battery and an input/output end, determines whether overcharging and over-discharging occurs by using a current flowing through the battery, determines overvoltage and undervoltage states by using an overall voltage of the battery, and controls on/off of the switching module when an abnormal state occurs in the battery, and thus, even if a failure occurs in an MCU and the like primarily responsible for the on/off control of the switching module, the redundant circuit unit can reliably block the supply of overcharge power to the battery, the over-discharging of the battery, and the like.
Resumen de: US20260196582A1
A method of manufacturing a nonaqueous electrolyte secondary battery includes: preparing an assembly body in which an electrode assembly and a nonaqueous electrolyte are accommodated by a battery case; electrically charging the assembly body to a predetermined voltage V0; then holding the assembly body at 45° C. or more for 3 hours or more; then adjusting the assembly body to have a voltage V1 less than 3.585 V; then treating a temperature of the assembly body at a temperature decrease starting time to be T1, for cooling down the assembly body until having a temperature T2 lower than T1, and for heating up the assembly body until having a temperature T3 higher than T2; and then performing a self electrical discharge inspection at a temperature T4 higher than T2.
Resumen de: US20260194590A1
A battery diagnosis device includes a temperature detector configured to detect temperatures of battery cells. An impedance detection device is configured to generate an AC current signal flowing through the battery cells, detect an AC voltage signal corresponding to the AC current signal for each of the battery cells, and detect impedance data of each of the battery cells based on the AC current signal and the AC voltage signal. A controller is configured to activate or deactivate the impedance detection device according to a temperature deviation of the battery cells and detect an abnormal cell among the battery cells based on the impedance data when the impedance detection device is activated.
Resumen de: WO2026143933A1
Disclosed are an electrolyte and a battery. The electrolyte comprises sodium hexafluorophosphate (NaPF6), sodium bisfluorosulfonyl imide (NaFSI), and an NaFSI decomposition product, wherein the mass percentage content of NaFSI and NaPF6 in the electrolyte is 3-30%; the mass ratio of NaFSI/(NaFSI+NaPF6) is 3-60%; and the content of the NaFSI decomposition product in the electrolyte is less than 1000 ppm. The electrolyte enables the battery to exhibit excellent cycling performance and storage performance.
Resumen de: WO2026144555A1
The present application relates to a solid-state battery, a positive electrode active material, a preparation method, a positive electrode sheet, and an electric device. The solid-state battery comprises a positive electrode active layer, wherein the positive electrode active layer comprises a positive electrode active material and a solid electrolyte material. The positive electrode active material comprises a coated oxide-based active material. The coated oxide-based active material comprises a positive electrode active body and a coating layer located on at least part of the surface of the positive electrode active body, wherein the positive electrode active body comprises a lithium transition metal oxide, and the coating layer comprises a lithium metal oxyhalide; and the coating thickness of the coating layer in the coated oxide-based active material is relatively uniform.
Resumen de: WO2026144190A1
A battery cell and a manufacturing method therefor, an electrode assembly, a battery device and an electric device, relating to the field of batteries. The battery cell 20 comprises a casing 21 and a solid-state electrode assembly 22, the solid-state electrode assembly 22 being accommodated in the casing 21. The outer surface of the solid-state electrode assembly 22 is provided with electrolyte residues 23, which include electrolyte salts. The electrolyte salts can improve ionic conductivity and reduce the internal resistance of the battery cell 20.
Resumen de: WO2026144191A1
Provided in the present application are a battery cell, an electrode assembly and a manufacturing method therefor, a battery device and an electric device. The battery cell comprises a casing and an electrode assembly, wherein the electrode assembly is arranged in the casing. The electrode assembly comprises a solid-state electrolyte layer and a plurality of electrode sheets. In a first direction, the solid-state electrolyte layer is arranged between two adjacent electrode sheets. Each electrode sheet comprises an active material layer, and among two adjacent electrode sheets, the polarities of the active material layers facing the solid-state electrolyte layer located between the two adjacent electrode sheets are opposite. In the first direction, the four corners of the two electrode sheets that are farthest apart from each other are each provided with a chamfered structure. The four corners of the two electrode sheets that are farthest apart from each other being each provided with a chamfered structure helps reduce the risk of said corners puncturing a packaging pouch during isostatic pressing, facilitating improvement to the yield of the battery cell.
Resumen de: WO2026147769A1
The present application provides a binder composition for battery comprising a blend of (i) poly(methyl vinyl ether-co-maleic anhydride) copolymer; (ii) an alkylated polyvinylpyrrolidone; and (iii) at least one cellulose ether. Present application further discloses the use of the binder compositions in battery coating applications comprising conductive carbon coating compositions for aluminum foils and ceramic coating compositions for battery separators.
Resumen de: WO2026144318A1
Provided in the embodiments of the present application are a controller for an energy storage apparatus, and an energy storage apparatus and an energy storage system, which can improve the computing capability of the controller, thereby meeting the increasingly stringent requirements for the computing power. The controller comprises: a first chip, which comprises a first interface, wherein the first chip is used for acquiring battery information of the energy storage apparatus by means of the first interface; and a second chip, which comprises a second interface, wherein the second chip communicates with a first device by means of the second interface, the first device comprises an energy management system, the first chip and the second chip communicate by means of a third interface, and the second chip is used for sending, to the energy management system by means of the third interface and by means of the second interface, the battery information that has been subjected to arithmetic operations by the second chip.
Resumen de: WO2026143613A1
Disclosed in the present application are a battery device and an electric device. The battery device comprises battery cells, a case, a sampling member and an integrated assembly, wherein a wall portion of the case is provided with an opening, and the opening is in communication with the interior of the case; the battery cells are arranged in the case; the sampling member is configured to collect information of the battery cells; and the integrated assembly comprises a substrate and a battery cell monitoring unit, the substrate being located outside the case, the substrate being detachably connected to the wall portion of the case and closing the opening, the battery cell monitoring unit being arranged on the substrate, and the sampling member being electrically connected to the battery cell monitoring unit. The technical solution provided by the present application can effectively reduce the maintenance cost of the battery device.
Resumen de: WO2026145074A1
Provided in the present application are a battery cell, a battery pack, a battery cluster, a battery management system, an energy storage system, and a data processing method for a battery cell. The battery cell comprises a battery cell body and a collection module, wherein the collection module is electrically connected to two ends of the battery cell body and a battery management module of a battery pack where the battery cell is located, and the collection module is configured to collect battery cell data of the battery cell body and is disposed on the battery cell body to form the battery cell.
Resumen de: DE102025141645A1
Die Erfindung betrifft ein Batteriezellgehäuse (1) zur Aufnahme einer Elektrodenanordnung, wobei mindestens ein Aufreißelement (2) zur Erzeugung einer Sollbruchstelle, die zum kontrollierten Öffnen des Batteriezellgehäuses (1) eingerichtet ist, in mindestens einer Wandung des Batteriezellgehäuses (1) integriert ist. Ferner betrifft die Erfindung ein Verfahren zum Herstellen eines solchen Batteriezellgehäuses (1), wobei das mindestens eine Aufreißelement (2) zur Erzeugung der Sollbruchstelle, die zum kontrollierten Öffnen des Batteriezellgehäuses (1) eingerichtet ist, zumindest teilweise in die Oberfläche des Batteriezellgehäuses (1) eingedrückt wird, wobei das mindestens eine Aufreißelement (2) zumindest teilweise in die Oberfläche des Batteriezellgehäuses (1) eindringt. Ferner betrifft die Erfindung ein Verfahren zum kontrollierten Öffnen eines solchen Batteriezellgehäuses (1), wobei ein Abschnitt des mindestens einen Aufreißelements (2) und/oder ein Abschnitt des Batteriezellgehäuses (1) im Bereich des mindestens einen Aufreißelements (2) gegriffen und abgezogen wird, um das Batteriezellgehäuse (1) kontrolliert zu öffnen.
Resumen de: WO2026146906A1
A secondary battery according to an embodiment comprises: a case including an accommodation part; an electrode assembly accommodated in the case and including a core part; a first current collector plate disposed on top of the electrode assembly; and a second current collector plate disposed below the electrode assembly, wherein the first current collector plate or the second current collector plate includes a first electrolyte injection area including a first hole and a second electrolyte injection area including second holes, the first electrolyte injection area overlaps the core part, the diameter of the first electrolyte injection area is larger than that of the core part, and the first hole is disposed on the inner side of the innermost separator disposed on the side surface of the core part.
Nº publicación: WO2026144938A1 09/07/2026
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2026144938A1
A lithium secondary battery and an electric device. The lithium secondary battery comprises a positive electrode sheet, a negative electrode sheet, an electrolyte and a separator located between the positive electrode sheet and the negative electrode sheet. The air permeability of the separator is 100 s/100 mL to 750 s/100 mL. The electrolyte comprises propylene carbonate and a compound having formula I, wherein R is selected from a halogen, and n is an integer selected from 1-6. The lithium secondary battery has an excellent low-temperature fast charging performance and cycle life.
BOPI
Sede Electrónica
