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1058
resultados
Última actualización
22/11/2025 [07:55:00]
Resultados 1000 a 1025 de 1058
Resumen de: EP4647403A1
The present disclosure relates to a nickel-cobalt-manganese-based positive electrode active material comprising a large particle group and a small particle group. An average particle size D50 of the large particle group is greater than an average particle size D50 of the small particle group; the average particle size D50 of the large particle group is from 12 to 20 µm; the large particle group includes polycrystal aggregate particles; each polycrystal aggregate particle includes a secondary particle consisting of a plurality of primary particles aggregated together; each polycrystal aggregate particle has a primary particle size of 2.0 µm or less; a crystallite size of a (003) plane of each polycrystal aggregate particle is from 950 to 1210 Å; a crystallite size of a (104) plane of each polycrystal aggregate particle is from 500 to 750 Å; and a peak intensity ratio I(003)/I(104) of the polycrystal aggregate particles is 2.10 or less.
Resumen de: EP4648157A1
The present invention provides a non-aqueous electrolyte comprising a lithium salt and an organic solvent, wherein the organic solvent comprises ethylene carbonate and a compound represented by Formula 1 below, wherein a volume ratio of the compound represented by Formula 1 to the ethylene carbonate is 0.20 to 3.0.The description of Formula 1 above is the same as described in the description of the present invention.
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: 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: EP4648136A1
A cathode material, a preparation method thereof, and a battery provided. The cathode material is a nickel-lithium cobalt oxide based composite oxide including a core and a surface reconstruction layer arranged outside the core, where the surface reconstruction layer is a region etched away by dissolving the cathode material with 100 times diluted aqua regia for 30 minutes, with an ambient temperature controlled to be 300°C during dissolution, and the core is a remaining region after the surface reconstruction layer is etched away from the cathode material, and where the core has a Li molar content of m1, the surface reconstruction layer has a Li molar content of m2, and 1.3≤m2/m1≤4.0. The cathode material provided is improved stability of crystal structure while having high capacity, thereby improving cycle stability of the cathode material and improving withstand voltage of the cathode material.
Resumen de: EP4648154A1
Zur Reduzierung von Aufwand und Kosten einer Zellherstellung in einem kontinuierlichen Verfahren bei hoher Qualität schafft die Erfindung ein Elektrodenstrangbereitstellverfahren zum Bereitstellen wenigstens eines Elektrodenstrangs (32, 88), der wenigstens eine Separatorbahn (34.1, 34.2) sowie wenigstens ein daran fixiertes Elektrodenmaterial (50.1, 50.2, 36.1, 36.2) aufweist, umfassenda) Laminieren eines ersten Elektrodenmaterials (50.1, 36.1) an eine erste Separatorbahn (34.1) in einer ersten Laminierstation (46.1) mittels eines ersten Laminierwerkzeugs (76.1) unter Zwischenfügen einer Linerbahn (100), um ein Anhaften von zu laminierendem Material an dem ersten Laminierwerkzeug (76.1) zu verhindern,b) Laminieren eines zweiten Elektrodenmaterials (50.2, 36.2) an eine Separatorbahn (34.1, 34.2) in einer zweiten Laminierstation (46.2) mittels eines zweiten Laminierwerkzeugs (76.2) unter Zwischenfügen einer Linerbahn (100), um ein Anhaften von zu laminierenden Material an dem zweiten Laminierwerkzeug (76.2) zu verhindern,wobei in Schritt a) und b) dieselbe Linerbahn (100) verwendet wird.
Resumen de: EP4648209A1
A forming device according to an embodiment of the present disclosure is a forming device for radially bending an electrode tab in which a first electrode of an electrode assembly where a first electrode, a separator, and a second electrode are stacked and wound around a central axis is extending to an axial end further than a separator and exposed, wherein the forming device includes a forming jig for bending the electrode tab, the forming jig includes an opposing surface facing the electrode assembly, and the opposing surface has an indentation depth of the opposing surface that is indented in a direction opposite to the pressing direction.
Resumen de: EP4648127A1
The present invention relates to a composition for coating a negative electrode active material, and a negative electrode, a lithium secondary battery, a battery module, and a battery pack including same, the composition comprising a polymer having the binding group -HN-C=O-, wherein the glass transition temperature (Tg) of the polymer having the binding group -HN-C=O- is -30°C to 80°C.
Resumen de: EP4648203A1
The present disclosure relates to a battery pack including: at least one battery module including a plurality of battery cells and a module case configured to accommodate the plurality of battery cells; a pack case configured to accommodate the battery module; a top cover accommodated inside the pack case and configured to cover a top of the battery module while being spaced apart from the pack case; and a deformation prevention member configured to maintain a distance between the top cover and the pack case.
Resumen de: EP4646956A2
An aerosol provision device comprises a haptic component configured to provide haptic feedback, a battery configured to power the haptic component, and an electrically insulating, resilient member in contact with the haptic component.
Resumen de: EP4647293A2
A Cooling module for batteries of an electric or hybrid vehicle, comprising a coolant supply line (1), a coolant discharge line (2), a plurality of flat tubes (3) arranged side by side, between which there is space for batteries to be cooled, each of the flat tubes (3) being connected to the coolant supply line (1) and the coolant discharge line (2),wherein the flat tubes (3) each carry connectors (6), and wherein the coolant supply line (1) and the coolant discharge line (2) are each assembled from a plurality of line segments, which are connected by a connector (6) of one of the flat tubes (3) to one of the connectors (6) of an adjacent flat tube (3).
Resumen de: EP4647639A2
Provided are a connecting structure (400), a battery (100), and an electric device. The connecting structure (400) comprises: a male connector (1); a female connector (2), comprising a first engagement part and a through hole (202) for the male connector (1) to insert; an identification piece (3), comprising a second engagement part, the second engagement part being adapted to be engaged with the first engagement part; and a locking member (4), mounted on the female connector (2), the locking member (4) being configured to be able to move from a first position to a second position when an insertion depth of the male connector (1) reaches a preset value, so as to lock the male connector (1) and drive the second engagement part to be separated from the first engagement part, thereby avoiding the occurrence of the case that the male connector (1) and the female connector (2) are not assembled in place. The accuracy of assembly is improved.
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: EP4647401A1
The present application provides a multi-element doped positive electrode precursor and a preparation method therefor, a positive electrode material, a battery and an electrical device, relating to the field of batteries. The multi-element doped positive electrode precursor includes N doped layers, which are a first doped layer to an N<sup>th</sup> doped layer respectively from inside to outside, a doping element W is doped in each doped layer, and a doping element Al is doped in the N<sup>th</sup> doped layer, N being a natural number greater than or equal to 2. A preparation method for the multi-element doped positive electrode precursor includes: adding a raw material including a metal salt solution, a precipitant and a complexing agent into a base solution, and performing a solution co-precipitation reaction so as to render the multi-element doped positive electrode precursor. For the multi-element doped positive electrode precursor provided in the present application, the number of doping elements is increased and distributed in a gradient from inside to outside, and the multi-element doping can reduce polarization, greatly reduce volume change, and enhance thermal stability, chemical stability and cycle performance of the positive electrode material.
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: EP4648212A2
A battery module according to one embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells including electrode leads are stacked; and a sensing assembly for transmitting voltage information of the battery cell. The sensing assembly includes a connector, a connection member for connecting the connector and the electrode lead, and a joining member located at one end of the connection member and joined to the electrode lead. At least two of the electrode leads are bent and joined to form an electrode lead joint body, and the joining member is joined to the electrode lead joint body.
Resumen de: EP4647791A2
An apparatus for diagnosing a battery according to an embodiment of the present disclosure includes a voltage measuring unit configured to measure voltages of a plurality of batteries; and a control unit configured to calculate a voltage deviation of the plurality of batteries, calculate a voltage deviation variation of each of the plurality of batteries at each predetermined period, and compare a pattern of the voltage deviation variation of each of the plurality of batteries with a preset diagnosis pattern to diagnose a state of each of the plurality of batteries.
Resumen de: EP4648140A2
The present invention relates to a cathode for a lithium secondary battery, a manufacturing method therefor, and a lithium secondary battery comprising the cathode. The cathode for a lithium secondary battery comprises a cathode active material layer formed to contain a very low content of conductive material at the outermost side thereof, whereby the cathode can have high thermal stability when an internal short-circuit of a battery occurs, and can achieve high-power properties when applied to a secondary battery.
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: EP4647222A1
Disclosed is an electrode cutter capable of preventing or reducing a thin and long thread-like detached material generated during a process of cutting an electrode or reducing the length of the detached material. The electrode cutter includes an upper cutter and a lower cutter, wherein a zigzag-shaped cutting portion is provided on at least one of a surface of the upper cutter and a surface of the lower cutter in a blade length direction. The zigzag shape prevents the detached material or significantly reduces the length thereof.
Nº publicación: EP4648116A1 12/11/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4648116A1
Disclosed are an electrode producing device, a battery cell including an electrode produced using the same, and a battery pack and a vehicle including the battery cell. According to an embodiment of the present disclosure, an electrode producing device for producing an electrode by transporting an electrode foil on which a coated portion of a coating layer and an uncoated portion of a non-coating layer are formed may include: a transport unit configured to transport the electrode foil; a coated-portion pressurizing unit configured to pressurize the coated portion of the electrode foil transported by the transport unit; and an uncoated-portion pressurizing unit spaced apart from the coated-portion pressurizing unit and configured to pressurize the uncoated portion.
BOPI
Sede Electrónica
