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1808
resultados
Última actualización
06/06/2025 [07:29:00]
Resultados 475 a 500 de 1808
Resumen de: EP4564567A1
A battery pack includes: a plurality of batteries (30) each of which includes a cap (45) of a sealing body as a positive external terminal on one side of the battery in a Z direction, the battery causing an internal gas to be exhausted from the one side when an internal pressure increases; a first holder (50) that holds the one side of each of the plurality of batteries (30) that are arranged in alignment, the first holder (50) including an opening (52) through which the cap (45) is exposed; and a current collector plate (60) that abuts one surface of the first holder (50), and is connected to the cap (45) while blocking a portion of the opening (52). At least a portion of the one surface of the first holder (50) that abuts the current collector plate (60) includes a groove (53) for exhausting, to an outside of the first holder (50), the internal gas exhausted from the portion of the opening (52) blocked by the current collector plate (60).
Resumen de: EP4564566A1
The present invention includes: a battery on which a cap that is a top surface of a sealing assembly and serving as an external terminal is provided on one side in a Z-axis direction and from which an internal gas is exhausted on the one side in the Z-axis direction when an internal pressure increases; a first holder that holds an end on the one side in the Z-axis direction of each of a plurality of the batteries aligned and includes an opening through which the cap is exposed; and a current collector that is provided on the one side of the first holder, partially covers the opening, and is connected to the cap. A first protrusion is formed on a surface of the first holder that is located on the one side in the Z-axis direction. The current collector is provided on the first holder in abutment with the first protrusion to form spacing between the current collector and the surface of the first holder that is located on the one side in the Z-axis direction.
Resumen de: WO2024022971A2
The invention relates to a housing for an electronic element, preferably a battery cell or a capacitor, comprising a cylindrical portion (4) and a base (6) disposed at one end of the cylindrical portion (4), wherein the cylindrical portion (4) and the base (6) are formed as a single piece, the housing being characterized in that the cylindrical portion (4) and the base (6) are made of a plated sheet metal and in that the sheet metal has at least one layer (10) of aluminum and at least one layer (12) of steel. The housing achieves the aim of providing an improved housing.
Resumen de: WO2024061544A1
The invention relates to a device (1) for detecting the entry of moisture into a housing (2) comprising a high-voltage component. The invention is characterized in that a gas- or pressure-generating element (3) is provided which generates gas or pressure upon being contacted by a liquid in the form of droplets, wherein a gas or pressure sensor (4) is arranged together with the gas- or pressure-generating element (3) in a common enveloping element (5), the enveloping element (5) is connected to the housing (3) via at least one access opening (6), and the gas or pressure sensor (4) detects a pressure increase or the generation of gas in the enveloping element (5) and outputs a warning signal.
Resumen de: EP4564490A1
An electrochemical cell device includes a plurality of electrochemical cells arranged in a first direction, and including a first cell and a second cell. The plurality of electrochemical cells each include an element portion, a support body, and a fixing material. The support body supports the element portion. The fixing material fixes the element portion and the support body. The first cell is different from the second cell in a position of the fixing material when viewed in a plan view in the first direction.
Resumen de: EP4564481A1
A positive electrode active material for a lithium secondary battery contains a composite oxide containing one or more kinds of elements selected from the following element group 1 and one or more kinds of elements selected from the following element group 2 and satisfies the following requirements (1) to (3):element group 1: Ni, Co, Mn, Fe, Al, and P; andelement group 2: Li, Na, K, Ca, Sr, Ba, and Mg,requirement (1): the active material contains fluorine, sulfur, and potassium, and a total amount of fluorine, sulfur, and potassium is 0.12 to 10.0 mass%;requirement (2): when a concentration of potassium in the active material is defined as CK (mass%) and a concentration of sulfur is defined as CS (mass%), CK/CS is 0.0001 to 2.0; andrequirement (3): when a concentration of fluorine in the active material is defined as CF (mass%) and a concentration of sulfur is defined as CS (mass%), CF/CS is 0.0001 to 20.0.
Resumen de: EP4564524A1
A method for producing a positive electrode active material including the following steps:(1) mixing an activation agent containing one type or two or more types of alkali metal compounds with an electrode material mixture which contains a positive electrode active material, a binder, and an electrolyte and from which at least a part of the electrolyte has been removed by contact with an electrolyte cleaning solvent to obtain a mixture;(2) heating the mixture at a retention temperature equal to or higher than a melting start temperature of the activation agent;(3) bringing the mixture after step (2) into contact with a water-containing liquid to obtain a slurry containing a solid component and a liquid component, and then separating the slurry into a solid component and a liquid component;(4) removing water from the obtained solid component by subjecting the solid component to heating and/or a reduced-pressure environment, wherein an ambient pressure at which the solid component exists and/or a temperature of the solid component is changed so that a ratio of saturated water vapor pressure at the temperature of the solid component to the ambient pressure becomes 80% or more within 24 hours after the slurry is separated into the solid component and the liquid component; and(5) heat-treating the solid component after step (4) at lower than 900°C.
Resumen de: EP4564523A1
A method for producing a positive electrode active material, including the steps of:(1) bringing an electrode mixture containing a positive electrode active material, a binder, and an electrolyte into contact with an electrolyte cleaning solvent to obtain a slurry containing a solid component and a liquid component, and then separating the slurry into the solid component and the liquid component, wherein an amount of P in the liquid component after separation is 0.0020 to 2.0 mass%, an amount of F in the liquid component after separation is 0.01 to 7.0 mass%, and an amount of P remaining in the solid component after separation is 0.7 mass% or less;(2) mixing an activation treatment agent containing one type or two or more types of alkali metal compounds with the separated solid component; and(3) heating a mixture obtained to a holding temperature equal to or higher than a melting start temperature of the activation treatment agent to activate the positive electrode active material contained in the mixture.
Resumen de: EP4564565A1
The present invention includes: a battery on which a cap of a sealing assembly is provided on one side in a Z-axis direction as an external terminal; a first holder that holds an end on the one side in the Z-axis direction of each of a plurality of batteries aligned and includes an opening through which the cap is exposed; and a current collector that abuts one surface of the first holder at an abutment part and is connected to the cap exposed through the opening. The current collector protrudes on one side in a longitudinal direction beyond the abutment part, partially seals the opening, and is connected to the cap. A part of the current collector that partially seals the opening protrudes on the one side in the Z-axis direction beyond a surface of the first holder that is located on the one side in the Z-axis direction, to form a space between the abutment part, the part of the current collector that partially seals the opening, and the cap.
Resumen de: EP4564469A1
Provided is a slurry composition for a non-aqueous secondary battery positive electrode that has excellent dispersibility and that can cause a positive electrode mixed material layer to display excellent adhesiveness and water shedding ability. The slurry composition for a non-aqueous secondary battery positive electrode contains carbon coating layer-covered olivine-type lithium iron phosphate particles in which surfaces of olivine-type lithium iron phosphate particles are at least partially covered by a carbon coating layer and a polymer X including an acidic group-containing monomer unit in a proportion of not less than 3 mass% and not more than 40 mass%. Surfaces of the carbon coating layer-covered olivine-type lithium iron phosphate particles have a weak acid group content of not less than 5 µmol/g and not more than 15 µmol/g.
Resumen de: EP4564515A1
A nonaqueous electrolyte secondary battery according to the present disclosure includes an electrode group including a positive electrode 5, a negative electrode 6, and a separator 7, the electrode group having a wound structure. The electrode group satisfies at least one configuration selected from the group consisting of the following (A) and (B): (A) the electrode group includes an insulating protective tape 9 at at least one end portion of the negative electrode 6 in the longitudinal direction of the negative electrode 6, the insulating protective tape 9 being adhered to a region 60 extending from a face of a negative electrode active material layer 6b facing the separator 7 to an exposed portion of a negative electrode current collector 6a via an end face of the negative electrode active material layer 6b; and (B) the electrode group includes an insulating protective tape in a region of the negative electrode 6 facing a positive electrode lead portion of the positive electrode 5, the insulating protective tape being adhered to the face of the negative electrode active material layer 6b facing the separator 7. The substrate of the protective tape 9 is a microporous resin-based membrane that has a compression deformation ratio of 30% or more and 50% or less when a load of 50 kg/cm<sup>2</sup> is applied thereto.
Resumen de: EP4564478A1
A positive electrode active material 32 according to an example of an embodiment of the present invention contains first composite oxides 33 and second composite oxides 34. The first composite oxides 33 are secondary particles each formed by aggregation of primary particles having an average particle diameter of less than or equal to 0.3 µm, and the second composite oxides 34 includes primary particles of greater than or equal to 0.5 µm. D50a of the first composite oxides 33 is larger than D50b of the second composite oxides 34. The ratio of the mean cross-section area (Sb) of the second composite oxides 34 with respect to the mean cross-section area (Sa) of the primary particles 35 constituting the first composite oxides 33 satisfies the condition 80 ≤ (Sb/Sa) ≤ 600.
Resumen de: GB2635886A
Disclosed in the present invention are a preparation method and use of tungsten-doped cobaltosic oxide. The method comprises the following steps: dissolving a tungsten-containing compound and a molybdenum-containing compound in an alkali liquor to obtain a mixed solution; adding the mixed solution, a cobalt salt solution, and a complexing agent to a base solution in parallel for reaction; calcining a resulting precipitate in an oxygen-containing atmosphere; and soaking the calcined material in a sodium sulfide solution to obtain the tungsten-doped cobaltosic oxide. In the present invention, tungsten is doped, which has a larger atomic radius, stabilizing the internal structure of the material, expanding the ion channel, and thus improving the cycling performance of the material. Meanwhile, the removal of molybdenum in the soaking process provides atomic vacancies, further improving the specific capacity of the material.
Resumen de: EP4564480A1
A positive electrode active material for a lithium secondary battery contains a plurality of secondary particles in which a plurality of primary particles are aggregated and satisfies the following requirements:(1) the secondary particles each internally have a plurality of voids, a value at a cumulative frequency of 50% in an area-based cumulative frequency distribution of equivalent circle diameters of the voids based on cross-sectional images of the secondary particles is more than 0.2 µm and 0.65 µm or less, and a value at a cumulative frequency of 50% in an area-based cumulative frequency distribution of circularity of the voids based on cross-sectional images of the secondary particles is 2.2 or more and 6.5 or less; and(2) the primary particles are an oxide containing one or more types of elements selected from the following element group 1 and one or more types of elements selected from the following element group 2:element group 1: Ni, Co, Mn, Fe, Al, and P; andelement group 2: Li, Na, K, Ca, Sr, Ba, and Mg.
Resumen de: EP4564522A1
A method for producing a positive electrode active material including the following steps of:(1) mixing an activation agent containing at least one type of compound selected from the group consisting of a potassium compound and a sodium compound with an electrode material mixture which contains a positive electrode active material, a binder, and an electrolyte and from which at least a part of the electrolyte has been removed by contact with an electrolyte cleaning solvent;(2) heating the obtained mixture to a retention temperature equal to or higher than a melting start temperature of the activation agent to activate the positive electrode active material contained in the mixture; and(3) bringing the mixture after heating into contact with a water-containing liquid to obtain a slurry containing a solid component and a liquid component, and then separating the slurry into a solid component and a liquid component, in which a total content of potassium and sodium in the liquid component after separation is 0.090 to 2.0 mass% and a total content of potassium and sodium in the solid component after separation is 1.2 mass% or less.
Resumen de: EP4563992A1
An impurity detection support device 100 comprises: a pipeline 102 through which a test liquid flows; a pair of electrodes disposed so as to be capable of applying an alternating-current voltage to, or capable of superimposing an alternating current onto the test liquid between a first position and a second position in the pipeline 102; a power source unit 106 for applying the alternating-current voltage, having a frequency fixed to a predetermined usage frequency, or superimposing the alternating current, having a frequency fixed to the usage frequency, between the pair of electrodes; a measuring unit 108 for measuring a current or a voltage generated between the pair of electrodes; and a calculating unit 110 for calculating a resistance of the test liquid using a measurement result from the measuring unit 108. The usage frequency is determined on the basis of the resistance of the test liquid measured by an alternating current impedance method, or a resistance of a reference liquid that does not include any impurities.
Resumen de: PL446950A1
Przedmiotem zgłoszenia jest sposób rozładowywania baterii litowo-jonowych, w którym następuje kolejno całkowite zanurzenie baterii litowo-jonowej w wannie (1) z 10% roztworem węglanu sodu, którego przewodność elektryczna wynosi od 65 do 85 mS/cm, przy czym etap ten trwa 24 h, następnie przełożenie i całkowite zanurzenie baterii litowo-jonowej do wanny (2) zawierającej 10% roztwór wodorotlenku sodu, którego przewodność elektryczna wynosi od 320 do 390 mS/cm, przy czym etap ten trwa od 72 do 336 godzin.
Resumen de: WO2025107802A1
The present application discloses a battery module, a battery, an electric device, and a battery discharge control method. The battery module comprises: at least two battery cells, each battery cell comprising a casing having an accommodating cavity, power supply modules accommodated in the accommodating cavity, and a functional layer, the functional layer being electrically connected to the power supply modules; and a control module used for acquiring the current state parameter of each battery cell, and on the basis of the deviation between the current state parameters of the battery cells among the at least two battery cells, determining whether to perform heating discharge balancing on the power supply modules by means of the functional layer in the battery cell.
Resumen de: WO2025107822A1
A positive electrode active material and a preparation method therefor, a battery, and an electric device. The positive electrode active material comprises a phosphate particle and a coating layer, wherein the coating layer is disposed on at least part of the surface of the phosphate particle, and the coating layer comprises a carbon skeleton structure and a phosphorus-containing group connected to the carbon skeleton structure. The positive electrode active material can improve the cycle performance of a battery.
Resumen de: WO2025107779A1
A composite current collector, an electrode sheet, a secondary battery, and an electric device. The composite current collector comprises a first metal layer, a bonding layer and a second metal layer. The bonding layer comprises a first surface and a second surface which are oppositely arranged, the first metal layer is located on the first surface, and the second metal layer is located on the second surface. In the composite current collector, by providing the bonding layer between the first metal layer and the second metal layer, the peeling strength of the first metal layer and the second metal layer can be improved, thereby reducing the risk of the metal layers falling off during processing.
Resumen de: WO2025107830A1
A casing (20), a cell (100), and an electric device. The casing (20) comprises a housing (21) and a pressure relief assembly (23); the housing (21) is provided with a pressure relief hole (211); the pressure relief assembly (23) blocks the pressure relief hole (211); the pressure relief assembly (23) comprises a bonding layer (231); the bonding layer (231) is bonded to the housing (21); and the bonding layer (231) is configured to lose adhesiveness when the temperature inside the housing (21) reaches a threshold temperature, thereby opening the pressure relief hole to relieve pressure inside the housing (21). The bonding area of the bonding layer (231) is S, wherein 2mm2≤S≤10mm2. By opening the pressure relief hole (211) when the bonding layer (231) of the pressure relief assembly (23) lose adhesiveness when receiving heat, the pressure relief assembly (23) has good thermal sensitivity and high pressure relief reliability, so that the safety of the cell having the casing (20) can be improved, there is no need to reserve a large space for the pressure relief assembly (23), and the space of the electric device is fully utilized. Since 2mm2≤S≤10mm2, when the casing (20) is in a normal working state, the bonding layer (231) can ensure that the pressure relief assembly (23) effectively blocks the pressure relief hole (211), and can also lose adhesiveness in time when the pressure and temperature inside the casing (20) are abnormal, thereby relieving pressure in time.
Resumen de: WO2024027329A1
A method and device for estimating the state of charge of a battery in a battery system, the method comprising: obtaining the state of charge of a replacement module, and obtaining the state of charge of a main circuit battery by means of the state of charge of the replacement module, wherein the replacement module is used to replace an original battery and the capacity of the replacement module is greater than that of the original battery, and the original battery is connected in series with the main circuit battery in a lithium iron phosphate battery branch of the battery system; conducting self-discharge detection on the replacement module and the main circuit battery, and carrying out balance control when the replacement module or the main circuit battery has a large amount of self-discharge; and after balance control, determining an updated state of charge of the replacement module, and updating the state of charge of the main circuit battery according to the updated state of charge of the replacement module.
Resumen de: CN119654429A
Disclosed herein are methods for obtaining a composition comprising copper sulphide from a material, wherein the methods comprise: contacting the material with an acidic aqueous solution having a pH of less than 6 in the presence of sulfur dioxide to form copper sulphide; wherein the material comprises one or more copper compounds selected from the group consisting of copper in zero oxidation state, copper oxide and copper hydroxide, and wherein the material comprises an amount of zero oxidation state metals having a standard oxidation reduction potential of less than 0 volts relative to a standard hydrogen electrode. Also disclosed are methods for recycling at least one battery material, and compositions comprising copper sulphide.
Nº publicación: MA71653A 30/05/2025
Solicitante:
EVE POWER CO LTD [CN]
Eve Power Co., Ltd
Resumen de: US2025174765A1
A soaking partition, a direct cooling plate, and a battery module are provided. The soaking partition includes: a housing, where at least a portion of an inner cavity of the housing is configured as a closed cavity, and a wall surrounding the closed cavity includes a first side wall and a second side wall; and a capillary element bonded to at least a portion of an inner surface of the first side wall or the second side wall, where at least a portion of the capillary element is in contact with a cooling medium in the closed cavity.
BOPI
Sede Electrónica
