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Control of vehicle thermal management systems

Resumen de: GB2637942A

A method 500 for controlling a thermal management system of an electric vehicle includes obtaining, for each operating mode of a plurality of operating modes of the thermal management system, an energy cost associated with the operating mode 502. The method further includes selecting an operating mode based on the one or more obtained energy costs 504 and providing an output indicating the selected operating mode 506. The plurality of operating modes may be based upon the positions of crossflow valves (328, figure 3) within a powertrain thermal management system of the electric vehicle, the positions of the valves determining flow of coolant through first and second loops (314, 316, figure 5) of the system and thus flow through different vehicle components (e.g. a traction battery, front or rear drive unit, heat exchanger). Ideally the method comprises receiving thermal energy information for each of a plurality of vehicle components and obtaining, for each operating mode, whether the operating mode complies with a thermal energy transfer requirement.

Method for preparing lithium iron phosphate by recycling waste batteries

Resumen de: GB2637897A

Provided is a method for preparing lithium iron phosphate by recycling waste batteries. First, waste lithium iron phosphate power batteries are pretreated to obtain pure lithium iron phosphate waste; next, each element is supplemented according to a ratio; and a lithium iron phosphate product is prepared by means of spray pyrolysis. The droplets of lithium iron phosphate sprayed by spray pyrolysis have high sphericity and uniform particle size distribution. After high temperature reaction, spherical lithium iron phosphate is obtained. The spheroidization of lithium iron phosphate is beneficial to increase the specific surface area of the material and increase the volume specific energy of the material. When removing impurities, waste heat of high-temperature lithium iron phosphate produced by spraying is used to atomize pure water to remove impurities by spraying, so that the atomized pure water is instantly evaporated, taking away impurities such as hydrogen chloride in the lithium iron phosphate particles. The prepared lithium iron phosphate cathode material has almost the same capacity and charge-discharge performance as the first synthesized lithium iron phosphate cathode material.

CYLINDRICAL BATTERY FIXING DEVICE HAVING ENHANCED ATTACHMENT/DETACHMENT FUNCTION

Resumen de: EP4601092A1

Disclosed is a cylindrical battery fixing apparatus including a lower housing formed in the shape of a flat plate, the lower housing having a through-hole configured to allow a cylindrical battery to be vertically inserted therethrough, an upper housing fixed to the top of the lower housing, the upper housing being generally formed in the shape of a column or a triangular prism, the upper housing being provided in a lower end thereof with guide recesses disposed at 120 degree intervals, and three fixing units inserted into the guide recesses of the upper housing, respectively, the fixing units being movable along an upper surface of the lower housing in a direction toward the center of the lower housing, each of the fixing units being provided on a front surface thereof with a fixing jaw configured to be inserted into and fixed to a beading portion of the cylindrical battery, wherein a fixing block is coupled to a rear surface of each of the fixing units, and two or more compression springs are provided between a respective fixing block and the upper housing.

NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE SHEET AND BATTERY

Resumen de: EP4601037A1

Provided are anode material, negative electrode plate and battery. The anode material includes a carbon matrix and a silicon-based active substance; the anode material contains an alkali metal element, an alkaline earth metal element, and an oxygen element, the alkali metal element includes Na and/or K, and the alkaline earth metal element includes Mg and/or Ca; a mass content of the alkali metal element is A ppm, a mass content of the alkaline earth metal element is B ppm, and a mass content of the oxygen element is E%; and the anode material satisfies the following relationship: 1 × 10<-5> ≤ (B/A) × E ≤ 5 × 10<2>. The anode material provided in the present application can enhance the cycling stability of the anode material while increasing the specific capacity of the anode material.

APPARATUS AND METHOD FOR DIAGNOSING BATTERY ASSEMBLY

Resumen de: EP4600679A1

A method for diagnosing a battery assembly according to one aspect of the present disclosure diagnoses a battery assembly including a battery bank provided by connecting a plurality of battery cells in parallel with each other, and the method includes generating a second differential profile representing a relationship between a second differential capacity, which is obtained by taking a second derivative of a capacity of the battery bank with respect to a voltage of the battery bank, and the voltage of the battery bank; and detecting a target peak located in a predetermined voltage section among a plurality of peaks of the second differential profile and diagnosing a state of the battery bank based on a second differential capacity value of the target peak.

ELECTRICAL CLEANING MACHINE WITH BATTERY MANAGEMENT SYSTEM

Resumen de: EP4601080A1

The invention is in the field of a mobile installation for street cleaning, also referred to as a cleaning machine for a road or pavement or gutter, for removing undesirable matter from roads or like surfaces, with or without moistening of the surface. These machines are used to remove objects, such as small items, such as leaves, and debris, and dirt from a road or the like, using a broom system for cleaning the road or the like, and typically a storage for removed objects and dirt.

POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: EP4601052A1

A positive electrode plate includes a current collector, and a positive electrode protection layer and a positive active material layer disposed on the current collector in sequence. The positive electrode protection layer includes inorganic particles, a first conductive material, and a binder. The binder includes a water-soluble polymer metal salt. The first conductive material includes a conductive oxide containing a doping element. A first metal element in the conductive oxide includes at least one of a Group IVA metal element and a Group IIIA metal element. The doping element includes at least one of a Group IIIA non-metal element, a Group VA element, or a Group VIIA element. A mass ratio of the doping element to the first metal element is 1: (10 to 200), and a mass ratio of the first metal element to a metal element in the inorganic particles is 1: (3 to 9). The positive electrode plate with the positive electrode protection layer is of high safety and can effectively improve electrochemical performance of the battery during use.

UMBRELLA HUB AND BATTERY PACK ASSEMBLY

Resumen de: EP4599732A1

An assembly is provided that includes an umbrella hub and a battery pack. The umbrella hub includes a hub body and a support portion. The hub body to be disposed about an umbrella pole. The hub body including an upper surface and a lower surface. The support portion disposed at the lower surface of the hub body. The battery pack includes a housing, an outer periphery, an inner periphery, a projection, and a battery cell. The housing includes a first portion and a second portion. The outer periphery and the inner periphery are each defined in part by the first portion and the second portion. The projection extends from the inner periphery. The projection to rest on the support portion of the umbrella hub to couple the battery pack to the umbrella hub. The battery cell disposed in the housing to supply or receive power through an electrical connection.

BATTERY OF VEHICLE

Resumen de: EP4601094A1

The present disclosure provides a battery of a vehicle, including an interface part, a power part, and an operation part. The interface part includes a first interface surface and a second interface surface. The power part includes a battery body and is connected with the interface part. The operation part is connected with the power part. The interface part includes: a first battery interface adapted to a first peripheral interface, where the first battery interface is mounted on the first interface surface and electrically connected with the battery body; and a second battery interface adapted to a second peripheral interface, where the second battery interface is mounted on the second interface surface and electrically connected with the battery body. The first battery interface is coupled and electrically connected with the first peripheral interface in a battery compartment after the battery is inserted into the battery compartment.

BUSBAR ASSEMBLY AND BATTERY PACK

Resumen de: EP4601106A1

The present disclosure discloses a busbar assembly and a battery pack. The busbar assembly includes: a busbar body provided with a positioning groove and a welding groove, where the welding groove is configured to be welded to a pole terminal of a cell, a spacing is reserved between the positioning groove and the welding groove; a temperature acquisition element adhesively fixed in the positioning groove.

CONTROLLING ACCESS BY AN ELECTRIC VEHICLE TO A CONTROLLED-ACCESS AREA

Resumen de: EP4600070A1

Methods, apparatuses, and computer program products for controlling access by an electric vehicle (EV) to a controlled-access area are provided. For example, a computer-implemented method may include receiving data from an EV related to a fire risk in a battery of the EV and determining, using the data received from the EV, whether to allow the EV to enter a controlled-access area.

ELECTRODE ASSEMBLY FOR SECONDARY BATTERY AND BATTERY CELL COMPRISING SAME

Resumen de: EP4601109A1

Disclosed are a secondary battery electrode assembly and a battery cell including the same, and more particularly a secondary battery electrode assembly including at least one first electrode including a first electrode current collector and a first electrode tab extending from the first electrode current collector in one direction, at least one second electrode including a second electrode current collector and a second electrode tab extending the second electrode current collector in one direction, a separator interposed between the first electrode and the second electrode, a first electrode lead electrically connected to the first electrode tab, and a second electrode lead electrically connected to the second electrode tab, wherein the first electrode current collector has a first resin layer interposed between a pair of aluminum layers, and a first metal foil is interposed between the first electrode tab and the first electrode lead on at least a part of a region where the first electrode tab and the first electrode lead overlap each other.

NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE SLURRY, AND LITHIUM ION BATTERY

Resumen de: EP4601036A1

The present application relates to an anode material, a preparation method therefor and a lithium-ion battery. The anode material includes a silicon-based active substance and a coating layer located on at least a partial surface of the silicon-based active substance, and the silicon-based active substance includes silicon and a lithium silicate. According to the anode material of the present application, by controlling the type and crystallization degree of the lithium silicate in the material, the storage stability of a negative electrode paste can be improved, the cycle life of the anode material is prolonged, the bonding ability of the anode material and a current collector is increased, the high-temperature storage performance of a cell is improved, and thus the cycle performance of the lithium-ion battery is improved.

BATTERY ASSEMBLY AND DEVICE

Resumen de: EP4601079A1

The present disclosure provides a battery assembly and a device. By controlling a size parameter of a heat absorption sheet arranged on a side surface of a housing of a cell in a battery assembly, a mass of a heat absorption main material, a size parameter of the housing, and related parameters in a thermal runaway process to meet a specific relation, the heat absorption sheet can be ensured to fully suppress heat of a battery with thermal runaway from diffusing to an adjacent battery, and does not excessively affect space utilization of the battery assembly containing a number of cells.

POWER SUPPLY DEVICE, METHOD FOR FORMING FILTER DEVICE, AND BATTERY SYSTEM INCLUDING POWER SUPPLY DEVICE

Resumen de: EP4601174A1

A power supply device includes: a primary-side printed circuit board (PCB); a secondary-side PCB insulated from the primary-side PCB; a filter device including a plurality of metal plates disposed between the primary-side PCB and the secondary-side PCB; and a transformer disposed on the filter device, and including a primary-side winding connected to the primary-side PCB and a secondary-side winding connected to the secondary-side PCB.

HEAT SINK ASSEMBLY

Resumen de: EP4601083A1

A heat sink assembly including a heat sink having a plurality of ribs extending in a longitudinal direction of the heat sink, open first and second end faces at respective first and second longitudinal ends and a flow path for a coolant formed by the ribs. The flow path includes an inlet flow path, at least one outlet flow path and a return flow path. A plurality of first end plugs close the first end face. A second end plug closes the second end face. The second end plug includes a flow guide on the return flow path. The flow path is configured so that a coolant introduced from the first longitudinal end flows along the inlet flow path, along the return flow path by the flow guide into the at least one outlet flow path and then flows to the first longitudinal end.

NEGATIVE ELECTRODE MATERIAL AND BATTERY

Resumen de: EP4601034A1

Provided are anode material and battery. The anode material includes a primary particle. The primary particle includes silicon grains. An average particle size of the silicon grains of the anode material measured at 25 °C is M0 nm. After the anode material is heated to 1000 °C under nitrogen protection and then subjected to temperature holding for 1 h, the average particle size of the silicon grains of the anode material measured at a temperature naturally cooled to 25 °C is M1 nm. A crystallization instability degree of the anode material is F, where F=(M1-M0)/M0, M1> M0, and 0.01≤F≤500. According to the anode material provided in the present disclosure, the problem of stress concentration caused by the primary particle including the silicon grains in a lithium deintercalation process may be attenuated, such that the structure stability of the anode material is improved, and an expansion rate of the material is reduced, thereby improving the electrochemical performance and cycling performance of the anode material.

POWER BATTERY, AND HEALTH EVALUATION METHOD AND HEALTH EVALUATION APPARATUS THEREFOR

Resumen de: EP4601074A1

The present disclosure relates to a power battery, a health evaluation method and a health evaluation device thereof. The power battery includes a cell, an expansion force sensor and an electrode sheet sensor. The cell includes electrode sheets. The expansion force sensor is electrically connected to the cell, and is configured to collect expansion forces at different thickness positions of the cell, and assess a health state of the power battery according to the expansion forces. The electrode sheet sensor is electrically connected to the cell, and is configured to collect the thicknesses of the electrode sheets at different thickness positions of the cell, and assess the health state of the power battery according to the thicknesses of the electrode sheets.

MICROPOROUS BREATHABLE FILM AND METHOD OF MAKING THE MICROPOROUS BREATHABLE FILM

Resumen de: EP4600017A2

Microporous breathable films include a polyolefin and an inorganic filler dispersed in the polyolefin. Methods for forming polymeric films and articles of manufacture prepared therefrom are described.

BATTERY DIAGNOSIS METHOD, AND BATTERY DIAGNOSIS APPARATUS AND BATTERY SYSTEM PROVIDING SAME

Resumen de: EP4600673A2

Discussed is a battery diagnosis apparatus that includes a measuring unit to measure a battery voltage at opposite ends of a battery, and a battery current flowing through the battery; a storage unit to store an internal resistance value of the battery calculated based on the battery voltage and the battery current at each diagnosis time point; and a control unit to calculate, for the each diagnosis time point, a moving average that is an average of a plurality of internal resistance values corresponding to a number of previously stored samples based on the diagnosis time point, and comparing the internal resistance value calculated for the each diagnosis time point with an upper band threshold that is larger than the moving average by a predetermined value and a lower band threshold that is smaller than the moving average by a predetermined value to diagnose a defect in the battery.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: EP4601021A2

The present invention relates to a positive electrode active material for a secondary battery which includes a first positive electrode active material and a second positive electrode active material, wherein an average particle diameter (D₅₀) of the first positive electrode active material is twice or more an average particle diameter (D₅₀) of the second positive electrode active material, and the second positive electrode active material has a crystallite size of 200 nm or more.

ELECTRICAL POWER OUTPUT CONTROL BASED ON MECHANICAL FORCES

Resumen de: EP4599783A2

A surgical instrument comprising a jaw assembly is disclosed. The surgical instrument further comprises a motor-driven drive system configured to manipulate the jaw assembly. The surgical instrument also comprises a control system configured to control the drive system and, also, control a power supply system configured to supply electrical power to electrodes defined in the jaw assembly. In use, the surgical instrument can be used to apply mechanical energy and electrical energy to the tissue of a patient at the same time, or at different times. In certain embodiments, the user controls when the mechanical and electrical energies are applied. In some embodiments, the control system controls when the mechanical and electrical energies are applied.

UNDERBODY FOR VEHICLE

Resumen de: EP4601082A2

Disclosed is an underbody for a vehicle, comprising at least one battery module, a tray member fastened to a lower portion of a vehicle body frame and including a receiving portion having a structure with an open lower surface to accommodate the at least one battery module, a cover member to cover the open lower surface of the receiving portion, a thermal interface material interposed between the at least one battery module and the cover member. The cover member includes a flow path to circulate a refrigerant fluid.

CAPACITANCE REDUCING BATTERY SUBMODULE WITH THERMAL RUNAWAY PROPAGATION PREVENTION AND CONTAINMENT FEATURES

Resumen de: EP4601081A2

A battery system includes a can with a lip around an opening. At least an interior surface of the can is anodized and the lip of the can includes a longer and shorter side. The can further includes a flange on the longer side of the lip and a plurality of layers that are inserted into the can. The plurality of layers includes a battery cell and a thermally conducting layer with a fin and the fin has a spring force that pushes the fin towards the anodized interior surface. The battery system further includes a lid that is configured to cover the opening of the can, where the flange is configured to wrap around the lid when the lid covers the opening of the can.

BATTERY DEVICE AND BATTERY MANAGEMENT SYSTEM

Nº publicación: EP4601076A2 13/08/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: EP4601076A2

A battery management system determines a charging current to charge a battery pack in each period based on a derating factor of a charge cycle including a plurality of periods, updates the derating factor based on a result of comparing a voltage of the battery pack in each period with a voltage upper limit value set in the corresponding period, and uses the updated derating factor in a next charging cycle.