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1563
results.
Updated on
19/12/2025 [07:14:00]
Results 150 to 175 of 1563
Absstract of: EP4663319A1
A method for manufacturing a cylindrical member (10) includes a preparation step of preparing a workpiece (20) and a bending processing step of bending an end portion (23) of the workpiece (20) to an inner circumferential side using a lower die (40) and an upper die (30). A recessed processing surface (31) of the upper die (30) includes a first portion (311) and a second portion (312). The first portion (311) extends toward a side opposite to the workpiece (20) in the axial direction and toward the inner circumferential side of the workpiece (20). The second portion (312) has a linear shape and extends from the first portion (311) to the inner circumferential side of the workpiece (20). In the bending processing step, the first portion (311) guides the end portion (23) to the inner circumferential side of the workpiece (20), and the second portion (312) clamps the end portion (23) together with the lower die (40).
Absstract of: EP4664580A1
A battery 100 of the present disclosure includes a positive electrode 23, a negative electrode 26, a separator 27, and an electrolyte solution 29. The positive electrode 23 includes, as a positive electrode active material, a lithium oxide in which a transition metal is dissolved to form a solid solution, the lithium oxide having an antifluorite crystal structure. The electrolyte solution 29 includes at least one additive selected from the group consisting of an organophosphorus compound and an organophosphite compound. The electrolyte solution 29 may further include a non-aqueous solvent, and the additive may be dissolved in the non-aqueous solvent.
Absstract of: EP4664610A1
A battery pack (10) includes a battery cell (102), a left cover (112) and a right cover (114) thermally coupled with a predetermined portion of the battery cell (102), and a filler (150) thermally coupled with another predetermined portion of the battery cell (102). The amount of at least a portion of the filler (150) decreases toward the predetermined portion of the battery cell (102).
Absstract of: EP4664493A1
Provided are an ion conductor whose lithium ion conducting property can be controlled, a composite, a sheet, an electrode, a separator, and a power storage device. The ion conductor (10) contains a solid electrolyte (19) which has a garnet-type crystal structure containing Li, La, Zr, and O, wherein lithium carbonate (19a) is partially present on a surface of the solid electrolyte. The composite (19d) contains the ion conductor and an ionic liquid containing a lithium salt dissolved therein, wherein the ionic liquid contains a fluorine-based anion, and, in a film (19c) which covers the surface of the solid electrolyte, the relative concentration ratio of a fluoride to carbonate ions is 0.1 or greater. The power storage device (11) includes the ion conductor.
Absstract of: EP4664589A1
To provide an assembly composite, a sheet, a separator and an electrode in which dendritic growth of metallic Li is suppressed, and a power storage device. The assembly composite (10) which contains oxide grains (19) having a garnet-type crystal structure (22) containing Li, La, and Zr, and inorganic grains composed of a main-group element including Mg. The median diameter of the inorganic grains is 1/2 or less the median diameter of the oxide grains. The volume ratio of the inorganic grains to the oxide grains is 1 vol% or more and 10 vol% or less. The power storage device (11) includes the assembly composite.
Absstract of: EP4664638A1
A container module is disclosed. The container module according to an embodiment of the present disclosure includes a base frame having a square or rectangular shape; a corner column extended in a top-bottom direction, and connected to a corner of the base frame; a bracket coupled to the corner column, and extended in a front-rear direction; and a battery pack installed on the bracket.
Absstract of: EP4663588A1
A transfer device according to an embodiment of the present disclosure includes a first disk having a disk shape and configured to be rotatable based on the central axis of the disk, a second disk provided above the first disk and having a disk shape, and a gasket interposed between the first disk and the second disk.
Absstract of: EP4664541A1
The present application provides a battery, comprising electrode sheets, wherein each electrode sheet comprises a current collector, a first active layer, and a second active layer; the first active layer is located on at least one surface of the current collector; the second active layer is located on the surface of the first active layer away from the current collector; the first active layer and the second active layer each comprise an active substance and a gel electrolyte; the first active layer further comprises a swelling electrolyte provided with pores; part of the gel electrolyte in the first active layer is filled in the pores of the swelling electrolyte.
Absstract of: EP4664556A1
Provided in the present application is a secondary battery, comprising a positive electrode plate. The positive electrode plate is provided with a positive electrode active material. The positive electrode active material comprises an agglomerated positive electrode material and a monocrystalline-like positive electrode material. The agglomerated positive electrode material has a volume average particle size Dv50 of 8 µm-15 µm. The agglomerated positive electrode material has a primary particle size of 0.1 µm-0.6 µm. The monocrystalline-like positive electrode material has a volume average particle size Dv50 of 2.5 µm-4 µm. The monocrystalline-like positive electrode material has a primary particle size of 0.8 µm-2 µm. The mass ratio of the agglomerated positive electrode material to the monocrystalline-like positive electrode material is greater than or equal to 1. The present application also relates to a corresponding electrical device. The described secondary battery has a high energy density and an excellent cycle life.
Absstract of: EP4664544A1
The present invention relates to a negative electrode for a lithium-ion battery, said negative electrode including carbon and silicon, wherein: the negative electrode has a silicon concentration of 2-80 mass% in a negative electrode material layer, and a half-value width of 3.0 deg. or more of a peak in a (111) surface of Si in an XRD pattern in which Cu-Kα lines of the negative electrode are used; and, when performing a charging and discharging test under predetermined conditions using a battery in which the negative electrode, a separator, and a positive electrode are stacked, and an electrolyte solution in which a supporting lithium salt is dissolved in a carbonate solvent is used, and the capacity retention of the battery is 95%, in an X-ray photoelectron spectroscopy (XPS) spectrum of the negative electrode surface, the relationship I528(O1s)/I531(O1s)≥0.1 holds, where I528(O1s) is the peak height near a binding energy of 528 eV, and I531(O1s) is the peak height near 531 eV.
Absstract of: EP4664600A1
A battery system is mounted on an electric vehicle. The battery system includes a secondary battery (2) and a battery control unit. The battery control unit controls the secondary battery (2) to perform a high-rate discharge when the electric vehicle is started. A positive electrode (4) of the secondary battery (2) has a first active material (41) and a second active material (42). The second active material (42) has a high resistance region in which a resistance is higher than that of the first active material (41) in a high-rate discharge region which is the SOC region of the secondary battery (2) where high-rate discharge is performed at startup time. The secondary battery (2) is configured so that, when high-rate discharge is performed at startup time, after the utilization rate of the second active material (42) becomes higher than the utilization rate of the first active material (41), the utilization rate of the first active material (41) becomes higher than the utilization rate of the second active material (42).
Absstract of: EP4664492A1
There is provided a diphosphorus pentasulfide composition according to the present embodiment, in which a degree of crystallinity calculated from a spectrum obtained by X-ray diffraction using a CuKa ray as a ray source is equal to or more than 40% and equal to or less than 80%, in a DSC curve of the diphosphorus pentasulfide composition obtained by measurement using a differential scanning calorimeter under conditions of a start temperature of 25°C, a measurement temperature range of equal to or more than 30°C and equal to or less than 350°C, a temperature rising rate of 5°C/min, and an argon atmosphere of 100 ml/min, an endothermic peak is observed in a temperature range of equal to or more than 280°C and equal to or less than 300°C, and a heat of fusion of the endothermic peak is equal to or more than 60 J/g and equal to or less than 100 J/g.
Absstract of: EP4664612A1
The present application provides a housing (10), a battery (100), and an electric device, where the housing (10) includes a base plate (110), a mounting beam (130), and a module beam (120), the base plate (110) has a first side surface (111) and a second side surface (112) opposite to each other in a thickness direction (H), a reinforcement structure (113) is provided on the base plate (110), the module beam (120) is disposed on the first side surface (111), the mounting beam (130) is disposed on the second side surface (112), and the reinforcement structure (113) is configured to connect to the mounting beam (130) and/or the module beam (120). The housing (10) provided in embodiments of the present application can utilize the reinforcement structure (113) to connect the mounting beam (130) and/or the module beam (120), thereby enhancing the connection strength between the base plate (110) and the mounting beam (130) and/or the module beam (120), thus achieving the purpose of meeting the high structural strength requirements of the housing (10).
Absstract of: EP4664568A1
Disclosed are electrode substrates for rechargeable lithium batteries, and rechargeable lithium batteries including the electrode substrates. The electrode substrate for a rechargeable lithium battery includes a support layer that includes a polymer resin matrix and a fiber, and a metal layer on at least one surface of the support layer. An average cross-sectional diameter of the fiber is in a range of about 0.1 µm to about 10 µm.
Absstract of: EP4663606A1
The present invention relates to a method for manufacturing a positive electrode active material and, more specifically, to a method for manufacturing a positive electrode active material, the method comprising the steps of: (A) preparing a lithium composite transition metal oxide by mixing a positive electrode active material precursor and a lithium (Li)-containing raw material and then firing the mixture; and (B) forming a coating layer on the lithium composite transition metal oxide by mixing the lithium composite transition metal oxide and a coating raw material and heat-treating same, wherein the heat treatment includes a temperature increasing section for increasing the temperature and a maintaining section for maintaining the temperature, and includes a section for injecting steam only in the temperature increasing section.
Absstract of: EP4664550A1
Embodiments of the present application provide a positive electrode plate and a manufacturing method therefor, a battery cell, a battery, and an electrical apparatus. The positive electrode plate includes: a positive electrode current collector; a first coating which is arranged on a surface of at least one side of the positive electrode current collector and includes a first active material; a second coating which includes a second active material that is different from the first active material; and a conductive layer which is arranged between the first coating and the second coating and is used for isolating the first coating from the second coating. The performance of a battery including the positive electrode plate is improved.
Absstract of: EP4664562A1
Provided are a positive electrode plate and a preparation method therefor, a battery cell, a battery, and an electrical apparatus, belonging to the technical field of batteries. The positive electrode plate includes: a positive electrode current collector, a first film layer, a second film layer, and a third film layer, where the third film layer is located between the first film layer and the second film layer, the first film layer is located on a surface of at least one side of the positive electrode current collector and is closer to the positive electrode current collector than the second film layer; the first film layer includes a first active material, and the first active material includes a layered structure material; the second film layer includes a second active material, and the second active material includes at least one of an olivine structure material and a spinel structure material; and the third film layer is used for isolating the first active material from the second active material. The technical solutions in the embodiments of the present application are beneficial to enhancing the performance of the battery cell.
Absstract of: EP4664549A1
Provided is a means capable of reducing resistance in an electrode for an all-solid-state battery including an active material layer containing an active material, a solid electrolyte, a fibrous conductive aid, and polytetrafluoroethylene and having sufficient dispersibility. Provided is a method for manufacturing an electrode for an all-solid-state battery including an active material layer containing an active material, a solid electrolyte, a fibrous conductive aid, and polytetrafluoroethylene, the method including: a first stirring step of placing the active material and the solid electrolyte in a first container and stirring them using a resonance acoustic mixer; and a second stirring step of placing a mixture obtained in the first stirring step and the fibrous conductive aid in a second container and stirring them using a resonance acoustic mixer, wherein the first stirring step and the second stirring step satisfy at least one of predetermined conditions (1) to (4).
Absstract of: EP4664624A1
In a manufacturing method of a battery of embodiments, a pair of terminals are attached to a lid, in which first and second edges along a first direction and third and fourth edges along a second direction intersecting the first direction form an outer periphery, while separating a second terminal from a first terminal to a side where the fourth edge is located. In the manufacturing method, a proximity portion closer to the first terminal than the third edge on the first edge is formed, and an outer periphery of the lid is welded to the outer container by performing laser welding a plurality of times. At least the proximity portion is welded by first laser welding, and one or more of start points and one or more of end points of the plurality of processes of laser welding are located in a range between the terminals.
Absstract of: EP4664131A1
An object of the invention is to provide a technique capable of determining a state of a battery at high speed and in detail. A battery diagnosis device according to the invention determines whether a battery is in a first state based on a first difference in battery voltage within 4 msec from an end time point at which charging or discharging of the battery is ended, and further determines whether the battery is in a second state based on a second difference in battery voltage thereafter (see FIG. 3).
Absstract of: EP4664592A1
The present disclosure relates to a non-aqueous electrolyte including a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by the following Formula 1:In Formula 1 above, R<sub>1</sub> is an allyl group or a propargyl group; R<sub>2</sub>, R<sub>3</sub>, R<sub>4</sub> and R<sub>5</sub> are each independently selected from hydrogen and an alkyl group having 1 to 5 carbon atoms; L is selected from a single bond and an alkylene group having 1 to 10 carbon atoms; and X is selected from -C(=O)-, -S(=O)- and -S(=O)<sub>2</sub>-.
Absstract of: EP4664654A1
This application provides a battery, including a negative electrode plate and a separator. The negative electrode plate includes a negative active substance layer and a functional layer that are stacked. The functional layer includes Mg<sup>2+</sup>, where some of the Mg<sup>2+</sup> is embedded in the negative active substance layer. The separator includes a base film and a coating layer located on a surface of the base film, and the coating layer bonds the base film and the functional layer. The coating layer includes a polymer material. The polymer material is coordination-crosslinked with at least some of the remaining Mg<sup>2+</sup> in the functional layer. The polymer material in the coating layer performs a coordination crosslinking reaction with the Mg<sup>2+</sup> in the functional layer, so as to effectively increase binding strength between the negative electrode plate and the separator, thereby helping prevent deformation of the battery during a cycle process. In addition, after ionization of the polymer material, ionic conductivity performance of the polymer material can be effectively improved, and internal resistance of the battery is reduced, thereby improving fast charging performance of the battery. This application further provides a terminal apparatus including a battery and a method for manufacturing a battery.
Absstract of: EP4664666A1
This application pertains to the technical fields of batteries (100), and provides a battery cell (10), a battery (100), and an electric device. The electric device includes a battery (100), the battery (100) includes a battery cell (10), and the battery cell (10) includes a casing (12), an electrode assembly (11), an electrode terminal (13), an adapter (14), and an insulating member (15). The electrode assembly (11) is disposed within the casing (12). The adapter (14) is disposed within the casing (12) and conductively connected to the electrode assembly (11) and the electrode terminal (13). The insulating member (15) is disposed within the casing (12) and at least partially located between the adapter (14) and the casing (12), and at least a portion of the insulating member (15) is spaced apart from the adapter (14). Spacing at least the portion of the insulating member (15) apart from the adapter (14) can mitigate the problem that heat from the adapter (14) being conducted to the insulating member (15) causes failure of insulation performance of the insulating member (15).
Absstract of: EP4664061A2
A monitoring device according to one embodiment disclosed herein may include a communication circuit, a processor, and a memory configured to store instructions, wherein, when executed by the processor, the instructions allow the monitoring device to acquire an image of a jelly roll including a positive electrode, a separator, and a negative electrode through the communication circuit, detect starting points of the positive electrode and the negative electrode from the image, and calculate input amounts of the positive electrode and the negative electrode included in the jelly roll based on the starting points.
Nº publicación: EP4664567A1 17/12/2025
Applicant:
NIPPON STEEL CHEMICAL & MAT CO LTD [JP]
NIPPON STEEL CHEMICAL & MATERIAL CO., LTD
Absstract of: EP4664567A1
Provided is a metal foil for a current collector that can have increased adhesiveness to an electrode mixture layer while maintaining the discharge capacity of a battery. The metal foil for a current collector according to the present disclosure includes a base material and a plurality of composite bodies held on the surface of the base material. The plurality of composite bodies include Ni particles having an average particle size of 20 µm or less, a sintered body formed by sintering a plurality of the Ni particles, and a resin with a volume% of 14.0 to 40.0. On a surface of the metal foil for a current collector, the number of peaks whose height from the surface of the base material is larger than 10 µm is 20.0 to 50.0 /mm, the peaks being identified through line roughness analysis.
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