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1482
resultados
Última actualización
03/04/2026 [07:26:00]
Resultados 350 a 375 de 1482
Resumen de: EP4718543A2
This application provides a battery current collector and a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. The battery current collector includes a foam metal layer (1) and a strength enhancement layer (2), where the strength enhancement layer (2) is a sheet-shaped metal layer, and the strength enhancement layer (2) and the foam metal layer (1) are stacked and metallurgically bonded, alleviating a problem of poor mechanical performance of current collectors in the related art. The strength enhancement layer (2) and the foam metal layer (1) are connected by metallurgical bonding, which helps ensure not only structural strength of the strength enhancement layer (2) and the foam metal layer (1), but also good conductivity between the strength enhancement layer (2) and the foam metal layer (1). Further, the manner of metallurgical bonding helps reduce production costs.
Resumen de: EP4718587A1
An electric battery pack comprises one or more electric battery units (1), each including an array of battery cells (2) arranged inside a container (4) and kept spaced apart from each other by respective spacer frames (8). A temperature-regulating liquid distribution system includes an inlet collector chamber (5) disposed below the array of battery cells (2) and an outlet collector chamber (6) disposed above the array of battery cells (2) and communicating with the inlet collector chamber (5) through the spaces (7) defined between the battery cells (2). Each space (7) between the cells (2) communicates with the inlet collector chamber (5) via one or more relatively narrow passages (9). The cells (2) each have a positive pole (3P) and a negative pole (3N) on a vertical end wall of the cell, facing a vertical side wall (40) of the container (4). The positive poles (3P) and negative poles (3N) of the cells are contained in one or more lateral chambers (CP, CN) of the battery unit (1), which are isolated from the space of the container occupied by the cells (2) by a separation wall (D) including a sealing panel (10) made of elastomeric material, for example silicone material, mounted on the ends of the cells (2) bearing the positive poles (3P) and negative poles (3N), and a rigid support frame (11) for the sealing panel (10), rigidly connected to the container (4). One or more rigid tubular elements (12) are associated with the sealing panel (10) for communication between the inl
Resumen de: EP4718575A2
The present invention provides an electrode coating die, including: a slurry discharge part configured to discharge an active material slurry onto a current collector; and a dam liquid discharge part provided on at least one side of the slurry discharge part and configured to discharge a dam liquid to form a dam layer covering at least a portion of an inclined surface portion provided at an edge portion of an active material slurry layer coated with an active material slurry discharged from the slurry discharge part, and an electrode coating apparatus including the same. Further, the present invention provides a method of manufacturing an electrode, the method including: a preparing operation of preparing an active material slurry including an active material, a conductive material, and a solvent; and a coating operation of applying the active material slurry on a current collector, in which the coating operation includes forming an active material layer by discharging the active material slurry onto the current collector and discharging a dam liquid so as to form a dam layer covering at least a portion of an inclined surface portion provided on an edge portion of at least one side of an active material slurry layer coated on the current collector at the same time.
Resumen de: EP4718610A1
Disclosed is a battery pack, which includes a plurality of battery modules respectively having a pair of fixing portions provided at both longitudinal sides thereof; a tray on which the plurality of battery modules are placed; a pair of side covers configured to cover both widthwise sides of the tray and having a first fastening hole formed at a location corresponding to a coupling hole formed in the fixing portion; and a module fixing bar positioned at a widthwise center of the tray and shaped to extend across an upper surface of the tray along a longitudinal direction of the tray, the module fixing bar having a second fastening hole formed at a location corresponding to the coupling hole formed in the fixing portion.
Resumen de: EP4717327A1
A pressure drop responsive gas tank includes: a tank main body inside a container, filled with a non-combustible gas, and having a discharge passage configured to discharge the non-combustible gas; and an opening device mounted on the discharge passage and configured to open the discharge passage when an internal pressure of the container is lower than an atmospheric pressure so that the non-combustible gas is discharged from the tank main body.
Resumen de: EP4718518A1
A negative electrode active material, a negative electrode for a rechargeable lithium battery including the same, and a method for preparing the same are provided. A negative electrode active material includes a carbon-based material, and a surface modifier on a surface of the carbon-based material, where the surface modifier includes a polar functional group, and the polar functional group contains at least one of a carboxyl group, an amine group, a thiol group, and/or a combination thereof.
Resumen de: EP4718523A1
A main object of the present disclosure is to provide an electrode active material capable of suppressing the volume change of the electrode layer. The present disclosure achieves the object by providing an electrode active material including a secondary particle that is an aggregation of a plurality of primary particle, wherein the primary particle is a Si-based active material containing a Si element, and a particle size D<sub>10</sub> (µm) and a particle size D<sub>50</sub> (µm) of the secondary particle satisfy the specified formula (1).
Resumen de: US2024396106A1
A battery system for an electronic device includes a rechargeable battery component, an induction coil, circuitry, a ferrite layer, and a cover. The induction coil is mounted on a side of the rechargeable battery component and electrically connected to a charging terminal of the battery. The circuitry is connected to the induction coil and the charging terminal of the rechargeable battery component and is configured to manage current flow and voltage levels between the induction coil and the rechargeable battery component. The cover is formed of a dielectric material and encapsulates the rechargeable battery component, the induction coil, and the circuitry. A ferrite layer is optionally interposed between the induction coil and the rechargeable battery component.
Resumen de: WO2024240873A1
There is described a method for predicting a state of health, SOH, of a redox flow battery, the method comprising: receiving battery data of the redox flow battery; and performing, using a machine learning agent, an analysis of the battery data to predict the SOH of the redox flow battery.
Resumen de: WO2024240785A1
The present invention relates to a protection element for thermal insulation and/or protection of a rechargeable battery, preferably a lithium-ion battery or sodium-ion battery and/or a traction battery of an electric vehicle, wherein the protection element has an, in particular woven, fiber layer, preferably the fibers and/or fiber layer having a flame-retardant finish, the finish in particular comprising metal oxide. According to the invention, the fiber layer is preferably coated with a heat-reflecting, flame-retard-ant and/or dustproof coating. According to a further aspect, the present invention also relates to a rechargeable battery having several battery cells arranged next to each other, the battery cells having vents which are configured in such a way that hot gases and/or particles escape through the vent of a battery cell when a thermal run-away occurs in said battery cell, the battery comprising a protection element, which in particular covers one or more of the vents.
Resumen de: CN121241466A
Embodiments of the invention include a cover for a battery pack of an electric vehicle. A battery pack may include a cover base portion defining an edge perimeter sized to cover an opening of a housing subassembly of the battery pack. The cap may have a base portion including a plurality of cap fastening features adjacent the edge perimeter defining a cap fastening perimeter. The battery separator may protrude from the cap base portion and extend through a plane generally defined by the cap fastening perimeter. The battery separator may be formed from a plurality of walls. The plurality of walls may define a cap hollow extending from a cap hollow base adjacent the cap base portion to a cap hollow distal portion of the battery separator.
Resumen de: EP4717673A1
The present disclosure relates to the field of energy storage technologies, and particularly to an energy storage batteries and its preparation method. A method for preparing an energy storage battery, comprising: preparing a cathode material, wherein a step of preparing the cathode material comprises: preparing a mixed solution containing lithium manganate, bismuth salt, and molybdenum based acid salt, wherein the molybdenum based acid salt comprises at least one of molybdate, tungstate, and vanadate, in the mixed solution, a molar amount of bismuth ions is n1, a total molar amount of molybdate ions, tungstate ions, and vanadate ions is n2, and a molar amount of lithium manganate is n3, n1:n2: n3=(1.05 to 2.2):1:(100 to 200); performing solvent thermal reaction treatment on the mixed solution to obtain the cathode material. The technical solution of the present disclosure uses molybdenum based acid salt and bismuth salt to modify lithium manganate cathode materials, which improves the high-temperature adaptability and cycling performance of the cathode materials.
Resumen de: EP4718535A1
A positive electrode material, a preparation method thereof and a lithium-ion battery are provided. A first aspect provides a positive electrode active material, where a chemical composition of the positive electrode active material is Li<sub>1+a</sub>Ni<sub>x</sub>Co<sub>y</sub>Ml<sub>z</sub>M2<sub>b</sub>O<sub>2±c</sub>A<sub>d</sub>, M1 is one or two of Mn or Al, M2 is one or more of Zr, Mg, Ti, Te, Al, Ca, Sr, Sb, Nb, Pb, V, Ge, Se, W, Mo, Zn, Ce, or Y; and A is one of F, Cl, or S. By controlling the Ni content in secondary particles of different particle sizes, the problem of non-uniform degradation of the secondary particles of different particle sizes during battery cycling can be avoided, thereby improving the cycling stability of lithium-ion batteries.
Resumen de: EP4718528A1
Provided are a positive electrode material, and a preparation method and a use thereof. The positive electrode material has a Dv50 value of α, with the unit of um, the lithium-rich amount of the positive electrode material is y, and the average porosity of the positive electrode material is denoted as β% in percentage, α, β, and γ satisfying: δ=β-2α+75γ/3, where 0≤δ≤4.0. By means of defining the relational expression of the Dv50, the average porosity and the lithium-rich amount of the positive electrode material, a lithium-ion battery prepared by the positive electrode material has excellent specific capacity, energy density, rate capability and cycle performance simultaneously, and particularly can maintain excellent electrochemical properties at high voltage.
Resumen de: EP4718607A1
A vehicle (1000) that includes a battery pack (100) is provided. The battery pack (100) includes a tray (20), a plurality of battery cells (23), a reinforcing member (30), and a thermal insulation member (40). The tray (20) includes a bottom plate (22), a side beam (28), and at least one support beam (21), the bottom plate (22) and the side beam (28) enclose an accommodating cavity (27), and the support beam (21) is disposed in the accommodating cavity (27). The plurality of battery cells (23) are disposed in the tray (20). The reinforcing member (30) is disposed in the accommodating cavity (27), the reinforcing member (30) is disposed at a bottom of the bottom plate (22), the reinforcing member (30) includes a plurality of reinforcing portions (31), the plurality of reinforcing portions (31) are spaced apart, and at least one reinforcing portion (31) is located at the support beam (21) and extends to a position below the battery cell (23). At least one thermal insulation protrusion (41) is disposed on the thermal insulation member (40), and the thermal insulation protrusion (41) is located in a gap between two adjacent reinforcing portions (31).
Resumen de: CN121175278A
The invention relates to a cathode active material having the general formula (I) NaxNiyM1 aM2 bM3 cO2 (I) wherein the variables are each defined as follows: M1 is Ti, Zr, Hf or a mixture thereof, M2 is Co, Mn, Al or a mixture thereof, M3 is Mg, Ca, Sr, Ba, Ce or a mixture thereof, x is in the range of 0.6 to 1.0, y is in the range of 0.6 to 0.95, a is in the range of 0.05 to 0.4, b is in the range of 0.00 to 0.35, c is in the range of 0.00 to 0.35, where a + b + c = 1-y. The invention further relates to an electrode material comprising said cathode active material, an electrode produced from or using said electrode material, and a rechargeable electrochemical cell comprising at least one electrode. The invention further relates to a method for producing said cathode active material having the general formula (I).
Resumen de: EP4718588A1
The present invention relates to a battery assembly (10), comprising a battery cell stack (12) with a plurality of battery cells (12a) with respective electrode tabs (14), wherein the battery cells (12a) are stacked and electrically interconnected via their electrode tabs (14) along a stacking direction (S), and a housing with a top and a base plate, between which the battery cell stack (12) is compressed, and structural enclosure walls (16), wherein at least one barrier element (18) is included in the battery cell stack (12) between a pair of neighbouring battery cells (12a) for dividing the battery cell stack (12) into a plurality of sealed cell modules (20a. 20b), wherein the at least one barrier element (18) comprises at least one stud element (22), which extends through an opening (16a) in a first of the structural enclosure walls (16) and is fixed to the first enclosure wall (16) by means of a counter element (22a), wherein between the at least one barrier element (18) and the first enclosure wall (16), a busbar assembly (24) is provided for electrically inter-connecting the neighbouring cell modules (12a), wherein by means of the barrier element (18), the first enclosure wall (16), the busbar assembly (24) and an insulating sealing layer (26) arranged between the busbar assembly (24) and the first enclosure wall (26), a hermetic sealing of the neighbouring cell modules (20a, 20b) is provided.
Resumen de: WO2024240874A1
The present invention relates to an aqueous formulation of electrode active materials, the coated strip-based electrodes comprising the composition of active materials and the electrochemical elements that comprise same. The invention also relates to a method for preparing an electrode comprising the composition of active materials, the method for preparing the ink not using, as a solvent, substances identified as substances of very high concern appearing in the candidate list provided in Article 59 of Regulation (EC) No. 1907/2006 (REACH), or substances subject to restrictions appearing in the list provided in Annex XVII of Regulation (EC) No. 1907/2006.
Resumen de: EP4718663A1
An energy storage system according to one embodiment disclosed herein includes an inverter electrically connected to a grid, a converter configured to receive a communication signal and an enable signal related to an operating state of the inverter from the inverter and connected to the inverter through a power transmission line, and a controller configured to determine an outage state of the grid or a power supply state from the inverter to the converter based on the communication signal and the enable signal.
Resumen de: EP4718660A1
The present disclosure provides an energy storage appliance and a power supply system. The energy storage appliance includes an appliance body (10) and an energy storage battery (20). The appliance body (10) has an energy storage chamber (110). An outer surface of the appliance body (10) is formed with a first junction (120) configured to connect a mains supply grid (50) and a second junction (130) configured to connect a load circuit (60). The energy storage battery (20) is installed in the energy storage chamber (110). An input terminal of the energy storage battery (20) is electrically connected to the first junction (120) and configured to charge the energy storage battery (20) through the mains supply grid (50). An output terminal of the energy storage battery (20) is electrically connected to the appliance body (10) and the second junction (130) and configured to supply power to the appliance body (10) and the load circuit (60).
Resumen de: EP4717953A1
A drain valve (13), a battery (100), and an electric device are provided, pertaining to the field of battery technology. The drain valve includes a valve body (131), a valve core (132), a gas-generating substance (133), and a check member (135). The valve body has a liquid inlet (1311) and a liquid outlet (1312). The valve core movably fits with the valve body to close the liquid outlet. The gas-generating substance is at least partially disposed within the valve body, and the gas-generating substance is configured to react with liquid water to generate a gas so as to push the valve core to open the liquid outlet. The check member is configured to allow the liquid water to enter the valve body from the liquid inlet and restrict gas from flowing out of the valve body through the liquid inlet. The gas-generating substance reacts with the liquid water to produce the gas, and the check member restricts the gas from flowing out of the valve body through the liquid inlet. As the gas increases, the pressure inside the valve body gradually increases, thereby pushing the valve core to move and open the liquid outlet, and allowing the liquid water to be discharged from the battery through the liquid outlet. This reduces the risk of leaked liquid water inside the battery causing a short circuit in a battery cell, which otherwise leads to an increase in the temperature of the battery and thus causes a fire in the battery, thereby improving the reliability of the battery during use.
Resumen de: EP4718585A1
Disclosed in the present application are a charge and discharge control method and apparatus, and a device, a storage medium and a program product. The method comprises: when a battery heating condition is satisfied, turning on a connecting circuit between a neutral point of a first electric motor and a neutral point of a second electric motor, wherein a first electric motor controller connected to the first electric motor and a second electric motor controller connected to the second electric motor are both connected between a positive electrode and a negative electrode of a battery; and controlling the turning-on/turning-off of bridge arms in the first electric motor controller and the second electric motor controller, and forming, in a circuit in which the battery is located, a charging loop and a discharging loop which are alternately switched. In the present application, the total inductance of windings in an access loop can increase, such that the electric quantity storage capability is improved, which is conducive to the improvement of the battery heating efficiency. A freewheel loop is added following a discharge loop, such that the peak current is reduced, the electric motor noise is reduced, and the overcurrent damage of a device is reduced. In a solution where all windings of the same electric motor have the same current direction, rotor heating situations can be reduced.
Resumen de: EP4717452A1
The present invention relates to a multi-layer assembly, comprising at least one erosion barrier layer, at least one thermal insulation, at least one composite structure layer, and at least one gas barrier layer.
Resumen de: EP4718578A1
The present invention relates to a battery pack stack (10), comprising multiple pouch-type battery cells (12), a pouch, at least one positive and one negative electrode tab (12a, 12b) provided to corresponding electrode plates, and a cooling device (20) which is adapted to cool the battery cells (12), comprising a plurality of heat transfer pads (36), each of which is applied to one of the electrode tabs (30, 32) inside and/or outside the pouch, and a linking structure (38) interconnecting the heat transfer pads (36) along the stacking direction (S) of the electrode assembly.
Nº publicación: EP4718691A1 01/04/2026
Solicitante:
YOSHIKAWA KOGYO KK [JP]
Yoshikawa Kogyo Co., Ltd
Resumen de: EP4718691A1
The present invention provides a technology capable of easily adjusting the thickness of a laminated core without modifying a device for manufacturing a laminated core itself. The present invention brings a laminated core A and a substrate member 1 including a peeling blade 11 having a protruding height equivalent to one or a plurality of core sheet materials A1 constituting the laminated core A into contact with each other and causes the laminated core A and the substrate member 1 to relatively slide to peel off one or a plurality of core sheet materials A1 from the laminated core A.
BOPI
Sede Electrónica
