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1369
resultados
Última actualización
21/08/2025 [07:15:00]
Resultados 100 a 125 de 1369
Resumen de: EP4604252A1
The present application provides a secondary battery. The secondary battery comprises: a negative electrode sheet and an electrolyte; the negative electrode sheet comprises a silicon-carbon composite material having a three-dimensional network cross-linked pore structure; the electrolyte comprises a first component, and the first component comprises a cyclic functional group containing a sulfate or sulfonate group. By means of coordination between the three-dimensional network cross-linked pore structure of the silicon-carbon composite material and the first component in the electrolyte, the volume effect of an active material in a charging-discharging process is inhibited, the interface stability is improved, and a cycle capacity retention rate and a high-temperature storage capacity retention rate of the battery are improved.
Resumen de: CN120019519A
Disclosed herein is a battery comprising: a positive current collector; a positive electrode; an electrolyte; wherein the electrolyte includes a solvent, wherein the solvent includes at least one of a fluorinated silicone and a lithium metal; and a metal current collector, where the metal current collector comprises lithium plated on the metal current collector, where a layer is coated over the lithium-plated metal current collector, where the layer comprises at least nitrogen and fluorine.
Resumen de: EP4604224A1
According to the present invention, as a usage time of a secondary battery increases, a deformable part may be deformed to suppress deformation near an end of a positive electrode, thereby preventing an adjacent separator from being damaged.In an electrode assembly having a structure, in which a first electrode sheet, a second electrode sheet, and a separator disposed between the first electrode sheet and the second electrode sheet are wound together according to the present invention, the first electrode sheet may include a deformable part disposed to be spaced a predetermined distance from one end of the second electrode sheet in a winding direction and having a shape that protrudes toward a central portion with respect to the wound state.
Resumen de: EP4603519A1
The present invention relates to: a copolymer a monomer unit comprising a heterocyclic structure of 2 to 6 carbon atoms containing at least one oxygen atom in an amount of 1% to 40% by weight, based on 100% by weight of the total weight of the copolymer; and core-shell particles, a slurry composition, a separator, and a secondary battery comprising same.
Resumen de: EP4604200A1
The present invention relates to a negative electrode for a lithium rechargeable battery and a lithium rechargeable battery including the same, which comprises a negative electrode active material including a natural graphite and a coating layer disposed on a surface of the natural graphite, and an area ratio of the orientation peak intensity of the XRD pattern (I110/I004) is 0.08 to 0.16 at a compressed density of 1.40 g/cc to 1.80 g/cc. By using the negative electrode of the present invention in a lithium rechargeable battery, the charge/output characteristics of the lithium rechargeable battery can be improved.
Resumen de: EP4603458A1
Provided are a lithium compound for recovering valuable metals and a method for recovering the same. The method for recovering a lithium compound for recovering valuable metals includes: preparing a battery, freezing and forcibly discharging the battery, crushing the battery, and heating the crushed battery material, wherein the heating is performed in a temperature range of 1,100 to 1,400°C, the heating is performed at a vacuum degree (LogP atm) in a range of -4 to 0, the lithium compound recovered by the heating includes impurities, and the impurities include 1.8 wt% or less (excluding 0 wt%) of Na, 0.06 wt% or less (excluding 0 wt%) of K, 0.62 wt% or less (excluding 0 wt%) of Ca, and 0.47 wt% or less (excluding 0 wt%) of Mg, in % by weight.
Resumen de: EP4604203A1
The present application provides a positive electrode plate and a manufacturing method therefor, a battery cell, a battery, and an electrical apparatus. The positive electrode plate comprises a current collector, a first positive electrode active material layer, and a second positive electrode active material layer; the first positive electrode active material layer is arranged on at least one side of the current collector, and the second positive electrode active material layer is arranged on the first positive electrode active material layer; the first positive electrode active material layer comprises a first positive electrode active material, the second positive electrode active material layer comprises a second positive electrode active material, the first positive electrode active material comprises a lithium-containing phosphate of olivine structure, and the second positive electrode active material comprises a cobalt-containing lithium metal oxide. The positive electrode plate can effectively improve the influence of the concentration polarization of a battery on the performance of the battery, thereby helping to improve the capacity and cycle performance of the battery.
Resumen de: EP4604253A1
The present disclosure relates to an electrolyte for a lithium-sulfur secondary battery and a lithium-sulfur secondary battery comprising the same, and provides a lithium-sulfur secondary battery with improved life characteristics by adjusting a solvent, a nonsolvent and a lithium salt included in the electrolyte to specific conditions.
Resumen de: EP4603457A1
The present disclosure relates to a lithium compound for recovering valuable metals and a method of recovering the same, and a method of recovering a lithium compound for recovering valuable metals includes: preparing a battery; freezing and forcibly discharging the battery; shredding the battery into a battery shredded material; and heating the battery shredded material, wherein the heating of the battery is performed in a temperature range of 1,100 to 1,400°C, a degree of vacuum (LogP atm) in the heating of the battery is in a range of -4 to 0, a lithium compound recovered through the heating of the battery contains impurities, and the impurities include, by wt%, 1.8 wt% or less (excluding 0 wt%) of Na, 0.06 wt% or less (excluding 0 wt%) of K, 0.62 wt% or less (excluding 0 wt%) of Ca, and 0.47 wt% or less (excluding 0 wt%) of Mg.
Resumen de: EP4604229A1
Embodiments of this disclosure provide a pre-stacking mechanism for battery module and a battery production line. The pre-stacking mechanism for battery module includes a workbench, a multi-row pre-stacking mechanism, and a single-row pre-stacking mechanism. The multi-row pre-stacking mechanism is configured to pre-stack multi-row battery cells to form a multi-row battery module. The single-row pre-stacking mechanism is configured to pre-stack single-row battery cells to form a single-row battery module. Both the single-row pre-stacking mechanism and the multi-row pre-stacking mechanism are disposed on the workbench. The pre-stacking mechanism for battery module in the embodiments of this disclosure can improve the efficiency of the battery production line.
Resumen de: EP4603405A1
Embodiments of this disclosure provide an adhesive application device and an adhesive application method, and pertain to the field of battery production technologies. A material storage assembly (2) for storing adhesive films is disposed on a rack (1). A first positioning assembly (3) is disposed on the material storage assembly (2) and at least partially moves together with the material storage assembly (2) to position the adhesive films (100). A material picking assembly (4) disposed on the rack (1) has picking parts (41) for picking up the adhesive films (100) placed in the material storage assembly (2). A release paper removal assembly (5) disposed on the rack (1) is configured to remove release papers (101) of the adhesive films (100). A material preparation platform (6) connected to the rack (1) is configured to bear the adhesive films (100) with the release papers removed, where the picking parts (41) are capable of reciprocating between the material storage assembly (2), the release paper removal assembly (5), and the material preparation platform (6). A second positioning assembly (7) is disposed on the material preparation platform (6) and at least partially moves together with the material preparation platform (6) to position the adhesive films (100). An application assembly (8) disposed on the rack (1) is configured to pick up the adhesive films (100) on the material preparation platform (6) for application. Moving the first positioning assembly (3) and the second
Resumen de: EP4604207A1
This application provides a composite positive electrode material and preparation method thereof, a positive electrode plate, a secondary battery, and an electric apparatus. The preparation method includes: mixing a lithium source, a phosphorus source, an iron source, a carbon source, and a carbon graphitization catalyst in a predetermined ratio with a solvent to form a mixed slurry; grinding and drying the mixed slurry to obtain a mixed dry substance; and sintering the mixed dry substance to obtain the composite positive electrode material, a sintering temperature being 750°C-840°C.
Resumen de: EP4604228A1
This disclosure discloses a pressurizing mechanism, a pressurizing apparatus, a silo apparatus, and a battery production line. The pressurizing mechanism includes a base and a pressurizing piece. The base is provided with a positioning key. The pressurizing piece is provided with a positioning groove. The positioning key is fitted to the positioning groove to position the pressurizing piece and the base. The positioning groove is provided with an insertion opening running through a bottom wall of the pressurizing piece, and the positioning key is inserted into the positioning groove through the insertion opening.
Resumen de: EP4603429A1
Embodiments of this disclosure disclose a battery grabbing device, a battery production line, and a control method for a battery grabbing device, where the battery grabbing device can increase the level of automation of the battery grabbing device. The level of automation of the battery production line is increased accordingly after the battery grabbing device is adopted. By using the control method for the battery grabbing device, qualified batteries can be grabbed quickly and accurately, improving the grabbing efficiency of batteries. The battery grabbing device includes a support, a workbench, a detection apparatus, a battery grabbing apparatus, and a tray grabbing apparatus, where the workbench is configured to carry a tray and a battery in the tray, the detection apparatus is disposed on the support and configured to detect whether the battery on the workbench is qualified, the battery grabbing apparatus is configured to grab the qualified battery, and the tray grabbing apparatus is at least configured to grab the tray after the battery grabbing apparatus grabs the qualified battery. The battery grabbing device provided in this disclosure is configured to grab qualified batteries.
Resumen de: EP4603430A1
A grabbing apparatus (1), a grabbing device, a battery production line, and a control method are provided. The grabbing apparatus (1) includes a rack (11), a clamping plate mechanism (12), and a distance varying mechanism (13), where the rack (11) is configured to connect to a manipulator; the clamping plate mechanism (12) includes two clamping plate assemblies spaced apart and is configured to clamp multiple battery cells (2); the distance varying mechanism (13) is arranged on the rack (11) and drivably connected to the two clamping plate assemblies to adjust a distance between the two clamping plate assemblies; the two clamping plate assemblies are a reference clamping plate assembly (122) and a floatable clamping plate assembly (121); the reference clamping plate assembly (122) is capable of providing a clamping reference for the multiple battery cells (2); and the floatable clamping plate assembly (121) is capable of clamping each battery cell (2) tightly. Due to the grabbing apparatus (1), the grabbing device, the battery production line, and the control method, the battery cell (2) can be grabbed stably.
Resumen de: EP4604227A1
This disclosure discloses a stacking apparatus, a battery production line, and a stacking method. The stacking apparatus is configured to stack workpieces into a neat workpiece queue, where the workpiece queue includes a plurality of workpieces. The stacking apparatus includes: a base bracket; a stacking table for carrying at least one workpiece, where the stacking table is arranged on the base bracket; and at least two shapers, where the shapers act in pairs to perform an alignment operation for aligning the workpieces on the stacking table, paired shapers are configured in such a way that at least one of the actions enables the paired shapers to approach or move away from each other along a first direction above the stacking table, and the alignment operation is performed through the approaching action of the shapers, to obtain the neat workpiece queue through stacking.
Resumen de: EP4603259A1
Disclosed is a battery cell sealing apparatus including a distance measurement unit, and more particularly a battery cell sealing apparatus including a sealing unit configured to seal a battery cell, the sealing unit including an upper sealing unit and a lower sealing unit, a movement unit configured to adjust the distance between the upper sealing unit and the lower sealing unit, a distance measurement unit configured to measure the distance between the upper sealing unit and the lower sealing unit, and a movement guide unit configured to move the distance measurement unit.
Resumen de: EP4604226A1
Embodiments of this application provide a battery manufacturing method and system. The battery manufacturing method is applied to the battery manufacturing system. The battery manufacturing system includes a controller and production equipment. The battery manufacturing method includes: during product production by production equipment in any process of a battery production line, obtaining, by the controller, product information, where the production equipment is an equipment corresponding to any process in a battery group production line; and in a case that the product information meets a product switching condition, controlling, by the controller, the production equipment to switch to producing a new-model product. In this way, model switching efficiency of the entire battery production line can be improved.
Resumen de: EP4603849A1
This disclosure provides an insulation withstand voltage testing method and system for a battery. The method includes: applying, by a voltage applying device, a direct-current voltage from a zero voltage to a target voltage to a battery cell under test in a first preset time period by using a voltage applying circuit in response to a testing start signal; obtaining a first current value that is generated by the battery cell under test based on the direct-current voltage in the first preset time period; continuously applying, by the voltage applying device, the direct-current voltage of the target voltage to the battery cell under test in a second preset time period by using the voltage applying circuit; obtaining a second current value that is generated by the battery cell under test based on the direct-current voltage in the second preset time period; and if the first current value is less than a first preset current threshold, and the second current value is less than a second preset current threshold, determining, by the voltage applying device, that a testing result of the battery cell under test is passing insulation withstand voltage testing of this time.
Resumen de: EP4604295A1
Example embodiments of the present technology provide a battery pack. The battery pack includes a lower frame including a base plate, a first side plate connected to a first side of the base plate, and a second side plate connected to a second side of the base plate, and first and second battery assemblies on the base plate, and each of the first and second battery assemblies includes a cell stack including a plurality of battery cells and a first cross beam coupled to a first side of the cell stack.
Resumen de: EP4603194A1
A coating device (100) and a battery processing apparatus. The coating device (100) comprises : a coating die head (10), provided with a discharge opening (11); an adjusting assembly (20), provided on the coating die head (10); and a control assembly, connected to the adjusting assembly (20), the control assembly being used for measuring the actual surface density of a coating on an electrode sheet, and, according to the difference value between the actual surface density and a target surface density, controlling the adjusting assembly (20) to adjust the flowing-through area of the discharge opening (11). The control assembly measures and feeds back in real time the actual surface density of the coating, and then according to the difference value between the actual surface density and the target surface density, automatically controls the adjusting assembly (20), so as to achieve the purpose of rapidly and timely adjusting the flowing-through area of the discharge opening (11), thereby enabling the adjustment on the discharging amount to be more timely and rapid; in addition, adjustment on the basis of the difference value between the actual surface density and the target surface density improves the accuracy during the adjustment process, thereby improving the coating quality and the coating efficiency for electrode sheets.
Resumen de: EP4604240A1
The present invention is to provide a lithium secondary battery including a positive electrode; a negative electrode; and an electrolyte, wherein an average resistance X1 of the positive electrode at room temperature and SOC 20 to 100% and an average resistance Y1 of the negative electrode at room temperature and SOC 20 to 100% satisfy Expression (1) below, and an average resistance X2 of the positive electrode at room temperature and SOC 0 to 20% and an average resistance Y2 of the negative electrode at room temperature and SOC 0 to 20% satisfy Expression (2) below. 0.6×Y1≤X1≤0.9×Y12×Y2≤X2
Resumen de: EP4604234A1
This disclosure provides a harness isolation plate assembly mechanism and a battery production line. The harness isolation plate assembly mechanism includes: a suction tool including a first bracket and a suction assembly, where the first bracket is provided with a first connection structure, the first connection structure being configured to connect to a transport device to move the first bracket, and an extension surface of the first bracket being parallel to an extension surface of a harness isolation plate to be grabbed; and the suction assembly is fixed on the extension surface of the first bracket and arranged to avoid a harness region of the harness isolation plate, and the suction assembly is configured to adsorb or release the harness isolation plate. The harness isolation plate assembly mechanism of this disclosure can avoid low-strength regions on the harness isolation plate and disperse a force on the harness isolation plate, achieving damage-free assembly of the harness isolation plate. The battery production line of this disclosure, by employing the harness isolation plate assembly mechanism of this disclosure, can similarly achieve damage-free assembly of the harness isolation plate.
Resumen de: EP4604206A1
Relating to the field of anode materials, and an anode material, a preparation method thereof, and a battery provided. The anode material includes a silicon-based active material and a lithium silicate, and the anode material further includes Mg element, Al element, and P element, where the Mg element accounts a mass content of a% in the anode material, the Al element accounts a mass content of b% in the anode material, the P element accounts a mass content of c% in the anode material, and in the anode material, a, b and c satisfy the following relational expressions: 0.3≤(a+b)/c≤1.5, and 0.5≤a+b+c≤10. By introducing Mg, Al, and P elements, the anode material facilitates to form a lithium ion transport channel, improving rate of the anode material.
Nº publicación: EP4604205A1 20/08/2025
Solicitante:
BTR NEW MAT GROUP CO LTD [CN]
DINGYUAN NEW ENERGY TECH CO LTD [CN]
BTR New Material Group Co., Ltd,
Dingyuan New Energy Technology Co., Ltd
Resumen de: EP4604205A1
Provided are an anode material and a preparation method thereof, and a lithium ion battery. The anode material comprises a silicon-based core and a coating layer on at least part of a surface of the silicon-based core. The silicon-based core comprises silicon oxide and lithium silicate, and the coating layer comprises a carbon material. 20mg of the anode material is dissolved in 10ml of deionized water to form a slurry, and a Zeta potential of the slurry is tested using a nano-particle size Zeta potential analyzer, in a Zeta potential test distribution chart of the slurry, an intensity of a first characteristic peak in a Zeta potential range of -50mV to -40mV is denoted as I1, an intensity of a second characteristic peak in a Zeta potential range of -65mV to -50mV is denoted as I2, and an intensity of a third characteristic peak in a Zeta potential range of -35mV to -25mV is denoted as I3, and a relationship among I1, I2, and I3 satisfies: 0≤I2/I1≤2.0, and 0≤I3/I1≤1.0. The technical solution of the present disclosure can be used to reduce the volume expansion of the anode material, and improve the rate performance and the cycle performance of the anode material.
BOPI
Sede Electrónica
