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1478
results.
Updated on
25/12/2025 [07:16:00]
Results 625 to 650 of 1478
Absstract of: EP4664657A1
A battery cell, a battery and an electric apparatus, which belong to the technical field of batteries. The battery cell comprises: a casing assembly and a battery cell assembly, wherein the casing assembly comprises a casing and a first terminal arranged on the casing; and the battery cell assembly comprises an active-material coated portion and a conductive portion, the active-material coated portion being accommodated in the casing, the conductive portion being used for electrically connecting to the active-material coated portion and the first terminal, the first terminal being provided with an accommodating portion, and the conductive portion being at least partially accommodated in the accommodating portion. With regard to the battery cell, a conductive portion is at least partially accommodated in an accommodating portion, such that the space occupied by the conductive portion in a casing is reduced, which is conducive to improving the energy density of the battery cell.
Absstract of: EP4663817A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni-W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and a number density of pinholes on a surface of the Ni-W alloy layer is 4.0 /cm<sup>2</sup> or less. Preferably, an average W concentration in the Ni-W alloy layer is 10 to 45 mass%. Preferably, an attached amount of Ni included in the Ni-containing layer and the Ni-W alloy layer is 1.8 to 35.6 g/m<sup>2</sup>.
Absstract of: EP4663816A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni-W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and the surface-treated steel sheet includes a W depletion layer in a range from a surface of the Ni-W alloy layer to a depth of 10 nm. In a method for manufacturing a surface-treated steel sheet according to another aspect of the present invention, an atmospheric dew point in annealing is set to -25 to 5°C, a soaking time in the annealing is set to 10 to 180 seconds, and a maximum temperature in the annealing is set to 630 to 860°C.
Absstract of: EP4664560A1
To provide an active material and a solid electrolyte capable of improving the performance of lithium sulfur batteries. An active material comprising: a compound; andan electroconductive material, wherein the compound contains a lithium (Li) element, a sulfur (S) element, a phosphorus (P) element, an iron (Fe) element, and a halogen (X) element, the compound has a peak at positions 2θ = 27.1° ± 0.5° and 31.4° ± 0.5° in an X-ray diffraction pattern measured with an X-ray diffractometer using Cu Kα1 radiation, and the active material satisfies relationship (1), (2), (3) and (4) shown below: (1) 5.8 ≤ Li/(Fe+P) ≤ 10.0, (2) 0.1 ≤ X/(Fe+P) ≤ 1.4, (3) 0.2 ≤ X+Fe ≤ 2.0, (4) 0.0 < Fe/(Fe+P) < 1.0, wherein (1) defines a molar ratio of the lithium (Li) element to a sum of the iron (Fe) element and the phosphorus (P) element, (2) defines a molar ratio of the halogen (X) element to the sum of the iron (Fe) element and the phosphorus (P) element, (3) defines a sum of mole numbers of the halogen (X) element and the iron (Fe) element, and (4) defines a molar ratio of the iron (Fe) element to the sum of the iron (Fe) element and the phosphorus (P) element.
Absstract of: EP4664689A1
A rotary connector in which relative movement between a rotary spacer and an outer peripheral electrode or an inner peripheral electrode is favorable is provided. A rotary connector 1 includes an annular outer peripheral electrode 30, an inner peripheral electrode 2 inserted into the outer peripheral electrode 30 and arranged so as to be turnable relatively to the outer peripheral electrode 30, a plurality of roller current collectors 4 arranged in the circumferential direction between the outer peripheral electrode 30 and the inner peripheral electrode 2, the roller current collectors being in contact with the outer peripheral electrode 30 and the inner peripheral electrode 2, rotary spacers 5 each of which is arranged between the roller current collectors 4, and a pair of guide plates 31, 32 that support the rotary spacers 5 on both sides in the axial direction, and an orbital path of the rotary spacers 5 and an orbital path of the roller current collectors 4 are different from each other.
Absstract of: EP4663602A2
An object of the present invention is to provide a method for recovering lithium iron phosphate powder, which is a positive electrode material, in economical and eco-friendly manner from a waste lithium-ion secondary battery using lithium iron phosphate as a positive electrode material, and to provide recycled lithium iron phosphate powder obtainable therefrom. In order to achieve the above-described object, a method for recycling a waste lithium-ion secondary battery according to the present invention includes (a) loading an object to be heat-treated into a heat-treatment furnace, the object being at least a part of a waste lithium-ion secondary battery in which lithium iron phosphate powder is a positive electrode material, and including the positive electrode material, (b) increasing the temperature inside the heat-treatment furnace to a range of 200 °C to 400 °C, (c) maintaining the increased temperature to heat treat the object to be heat-treated, and (d) discharging first powder produced after the completion of the heat treatment, wherein the first powder includes recycled lithium iron phosphate powder.
Absstract of: EP4664588A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being W1, a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4664594A1
A nonaqueous electrolyte solution capable of improving a low-temperature (-30°C) output characteristic after a high-temperature (70°C) storage test (resistance after high-temperature storage) and a post-overdischarge discharge capacity retention rate after a high-temperature (70°C) storage test in a well-balanced manner and a nonaqueous electrolyte solution battery are provided. A nonaqueous electrolyte solution containing (1-1) a compound represented by the general formula 1a described in the specification and (I-2) at least one selected from the group consisting of a compound represented by the general formula 1b and a compound represented by the general formula 1b' in which a (I-2) content in the nonaqueous electrolyte solution is 10 to 25000 ppm by mass.
Absstract of: EP4664538A1
Disclosed is a negative electrode mixture constituting a negative electrode layer, the negative electrode mixture containing: particles of a solid electrolyte; and particles of an electroconductive material which are disposed on a surface of the particles of the solid electrolyte. Preferably, the solid electrolyte includes a crystal phase having an argyrodite-type crystal structure. Preferably, the electroconductive material is a carbon material or a metal material. Also preferable is a slurry containing: the negative electrode mixture; a binder; and a solvent, wherein the slurry has a viscosity of from 0.05 to 3 Pa·s at 25°C and at a shear rate of 10 (1/s).
Absstract of: EP4664548A1
Disclosed is a negative electrode including a negative electrode charge collector, and a negative electrode layer that is disposed on the negative electrode charge collector and contains solid electrolyte particles. The value of (D<sub>90</sub>-D<sub>10</sub>)/D<sub>50</sub> is less than 10.0, where D<sub>10</sub>, D<sub>50</sub>, and D<sub>90</sub> are defined as cumulative volume particle diameters of the solid electrolyte particles at cumulative volumes of 10 vol%, 50 vol%, and 90 vol% respectively, as measured according to a laser diffraction/scattering particle size distribution measurement method. The negative electrode contains no negative electrode active material. Preferably, a cumulative volume particle diameter D<sub>95</sub> of the solid electrolyte particles at a cumulative volume of 95 vol% as measured according to the laser diffraction/scattering particle size distribution measurement method is less than 65 µm.
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: EP4664587A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being W1, a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4664586A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
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: 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: 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: EP4664631A1
This application provides an energy storage container and an energy storage container system. The energy storage container includes a container body. The container body has accommodation space. The accommodation space includes a plurality of battery compartments and one temperature control compartment. The plurality of battery compartments are sequentially arranged in a first direction to form a battery region. The temperature control compartment is located between two adjacent battery compartments, or the temperature control compartment is located at an end part that is of the battery region and that is in the first direction. Each of the battery compartments is provided with a door plate, and all of door plates are located on a same side of the container body. The energy storage container provided in this application has high space utilization, high energy density, low levelized costs of storage, and high system efficiency, and is designed with a single door. Therefore, self-stacking may be implemented to form an energy storage container system for transport, and a high-density side-by-side arrangement may be further implemented to form an energy storage container system for an application scenario.
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: 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).
Nº publicación: EP4664605A1 17/12/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: EP4664605A1
The present invention provides a structure of A battery pack comprising: a pack frame; and a plurality of battery modules arranged in the pack frame along a widthwise direction of the pack frame and spaced apart from each other, wherein the pack frame comprises: a bottom plate; a side plate; a cavity is provided in the bottom plate and filled with a coolant without empty space; and an outlet port communicating an inside of the cavity with an outside of the pack frame.
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