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1039
results.
Updated on
17/07/2026 [07:34:00]
Results 925 to 950 of 1039
Absstract of: EP4773204A1
The present invention relates to an electrode including an electrode active material layer including an electrode active material, a conductive material, and a binder, wherein the electrode active material has a specific surface area of 10 m2/g to 50 m2/g, and the electrode active material layer has an A, defined by factors including input amounts of the electrode active material and the conductive material in the electrode, an loading amount and a specific surface area of the electrode active material, and a specific surface area and an average particle diameter of the conductive material, of 0.70 cm2µm/mg or greater, and may achieve an electrode having a large loading amount and low resistance, thereby providing a secondary battery having excellent capacity characteristics and improved resistance characteristics.
Absstract of: EP4773209A1
The present disclosure relates to a negative electrode and a method of manufacturing the same. The negative electrode includes a silicon-based negative electrode active material together with a carbon-based negative electrode active material, thereby having excellent charge and discharge capacity, and has characteristics of excellent rapid charging performance since a magnetic field is applied during manufacturing, thereby reducing tortuosity of an entire negative electrode active layer. In addition, the negative electrode has advantages of excellent lifespan characteristics since low electrical resistance is uniformly maintained throughout the entire negative electrode active layer even when charge and discharge cycles of a secondary battery are repeatedly performed, thereby suppressing degradation.
Absstract of: EP4773325A1
The present application discloses a battery insertion device, a battery assembly method, and a battery assembly system. The insertion device comprises a machine frame, a bearing mechanism, and an insertion mechanism; the bearing mechanism is arranged on the machine frame, and is used for bearing a bottom cover and an electrode assembly supported above the bottom cover; and the insertion mechanism is arranged on the machine frame, and comprises a case fixing mechanism and a tab part guide mechanism, the case fixing mechanism is used for fixing a case, and the tab part guide mechanism and the case fixing mechanism both can get close to or away from the bearing mechanism, wherein the case fixing mechanism is configured to sleeve the case onto the outer side of the electrode assembly by means of an open end when moving close to the bearing mechanism; and the tab part guide mechanism is configured to guide a tab part to penetrate out of an accommodating cavity through a through hole when the case is sleeved on the electrode assembly. According to the present application, by means of the mode, the tab part smoothly extends out of the case, thereby achieving the accurate insertion of the electrode assembly, reducing the battery preparation difficulty, and improving the assembly efficiency and the yield of batteries.
Absstract of: EP4773299A1
0001 The present invention provides a lithium secondary battery having improved high-temperature cycle characteristics. Specifically, the present invention relates to a lithium secondary battery comprising a positive electrode, a negative electrode, a separator, and an electrolyte, and provides a lithium secondary battery wherein: the positive electrode comprises lithium iron phosphate as a positive electrode active material; the loading amount of the positive electrode is 32 mg/cm<2> to 60 mg/cm<2>; the electrolyte comprises a lithium salt, a first organic solvent, a second organic solvent, a first additive, and a second additive; the first organic solvent is a cyclic lactone compound; the second organic solvent is a carbonate organic solvent; the first additive is lithium nitrate (LiNO<3>); and the second additive is a sulfonylimide compound.
Absstract of: EP4773404A1
The present application provides an electrode plate, a cell, and a battery. The electrode plate includes a current collector and an electrode tab, where the current collector includes a support layer and a conductive layer. The conductive layer is located at least on a surface of a side of the support layer, and the electrode tab includes a main body portion and a connecting portion adjoining the main body portion, the connecting portion being connected to the conductive layer, and the main body portion extending in a direction away from the current collector. In an MD direction of the electrode plate, a length of the connecting portion of the electrode tab is greater than a length of the main body portion of the electrode tab. In this arrangement, part of the electrode tab is lengthened, so that the electrode tab is integrally divided into a main body portion and a connecting portion. The main body portion still maintains an original specification size, still meets the requirements of an original design, and does not affect an original basic function of the electrode tab, while the connecting portion with a relatively large length has a welding relationship with the conductive layer of the current collector. In this way, the current carrying capacity of the formed weld is increased, the temperature rise of charging and discharging can be lowered, and the problem of a temperature rise of the weld that is easily caused by insufficient current carrying capacity of the weld of t
Absstract of: EP4773256A1
The present disclosure provides a semiconductor structure and a method for manufacturing the same. The semiconductor structure at least includes: an underlying conductive layer and a blocking portion, a plane in which the blocking portion is located being located above a plane in which the underlying conductive layer is located, and projections of the blocking portion and the underlying conductive layer in the vertical direction having an overlapping region; a three-dimensional structure, the three-dimensional structure including a first portion and a second portion, a top surface of the blocking portion being higher than a bottom surface of the second portion and being lower than or flush with a bottom surface of the first portion, and at least a part of the first portion being located directly above the overlapping region; a contact hole and a first conductive layer, a plane in which the first conductive layer is located being higher than a top surface of the three-dimensional structure, the contact hole being directly connected to the first conductive layer, the underlying conductive layer being electrically connected to the first conductive layer through the contact hole, and the contact hole being located on a side of the first portion away from the second portion; and a first isolation layer, the first isolation layer being configured to fill a region between the contact hole and the three-dimensional structure and a region between different contact holes.
Absstract of: EP4773233A1
The negative electrode for a secondary battery according to some embodiments includes: a current collector; a first active material layer on the current collector; and a second active material layer on the first active material layer, wherein the first active material layer includes a first silicon-based active material and a first conductive material, the second active material layer includes a second silicon-based active material and a second conductive material, wherein the content of the first silicon-based active material is greater than the content of the second silicon-based active material, and the ratio (Sct/Sst) of the sum of the surface areas of the first and second conductive materials Sc1 to the sum of the surface areas of the first and second silicon-based active materials Sst may be in the range of 0.8 to 1.2. Some embodiments of the present disclosure exhibit excellent capacity, cycle characteristics, low-temperature charge/discharge performance, and rapid charge/discharge performance.
Absstract of: EP4773384A1
0001 The present application relates to the technical field of batteries. Disclosed in the present application are a battery cell, a battery, and an electric device. The battery cell comprises a shell and a pressure relief notch, wherein the shell comprises a first wall; and the pressure relief notch is arranged in the first wall and comprises an arc section and a first extension section, the arc section having a first end, and the first extension section being connected to the first end and extending from the first end in the direction approaching the central axis of the arc section. In the battery cell according to the embodiments of the present application, the tearing range and tearing direction of a torn part on the shell can be controlled, and partial valve opening can be achieved after thermal runaway of the battery cell and tearing of the pressure relief notch, thereby reducing the probability of tearing over a large area of the shell and reducing the damage to the battery cell caused by uncontrollable cracks.
Absstract of: EP4773255A1
A composite current collector (3), an electrode plate, a secondary battery (1), and an electric apparatus (2) are provided. The composite current collector (3) includes a substrate layer (31), a first filler (32), a bonding layer (33), and a conductive layer (34). The bonding layer (33) is located between the substrate layer (31) and the conductive layer (34). One end of the first filler (32) is embedded in the substrate layer (31), the other end of the first filler (32) is embedded in the bonding layer (33), a hardness of the first filler (32) is greater than a hardness of the substrate layer (31), and the hardness of the first filler (32) is greater than a hardness of the bonding layer (33). In the composite current collector (3), by introducing the first filler (32) having a greater hardness than the substrate layer (31) and the bonding layer (33), and making one end of the first filler (32) embedded in the substrate layer (31) and the other end embedded in the bonding layer (33), the first filler (32) can serve as a point of force application between the substrate layer (31) and the bonding layer (33), which is conducive to improving the elastic modulus of the composite current collector (3) and reducing the risk of wrinkling during electrode plate processing.
Absstract of: EP4773214A1
0001 A positive electrode sheet and a preparation method therefor, a battery and an electric device. The positive electrode sheet comprises a positive current collector and a positive active layer arranged on at least one surface of the positive current collector, wherein the positive active layer comprises a first active layer and a second active layer, and the second active layer is located between the positive current collector and the first active layer; and the first active layer comprises a first positive active material, and the second active layer comprises a second positive active material, the operating voltage interval of the first positive active material being greater than the operating voltage interval of the second positive active material, and the operating voltage interval of the second positive active material being less than or equal to 3.0 V. The first positive active material starts to be attenuated after a relatively large voltage plateau, and the effect of continuing an operating voltage is achieved by means of the lower operating voltage interval of the second positive active material, thus expanding the voltage interval range of high-power discharge; in addition, the second positive active material still has reaction activity in a relatively low state of charge, and thus has a good discharge capacity.
Absstract of: EP4773254A1
The present disclosure relates to a current collector for a dry electrode including a metal foil for the current collector, and a primer layer on at least one surface of the metal foil, wherein the primer layer includes a binder resin and a conductive material, and wherein the conductive material has a bulk density of 0.055 g/ml or more, and a Brunauer, Emmett and Teller (BET) specific surface area of 100 m2/g or less.
Absstract of: EP4773306A1
The present disclosure relates to a non-aqueous electrolyte comprising a lithium salt, an organic solvent and an additive, wherein the additive includes a compound represented by Formula 1, and the additive includes at least one of the compound represented by Formula 1, ethylene sulfate, and 1,3-propane sultone, and the compound represented by Formula 1 is included in the non-aqueous electrolyte in an amount of 0.25 wt% to 1.60 wt%, and a total content of the compound represented by Formula 1, ethylene sulfate, and 1,3-propane sultone may be 0.25 wt% to1.60 wt% based on a total weight of the non-aqueous electrolyte.In Formula 1, R1 is -O-NO2, and L1 is an alkyleneoxy group having 1 to 5 carbon atoms, M is a metal cation or an organic cation, a is the valence of M when M is a metal cation, a is 1 when M is an organic cation, and a=b.
Absstract of: EP4773290A1
0001 An electrolyte composite for an all-solid-state lithium-ion secondary battery capable of improving battery performance by applying different solid electrolytes to a cathode side and an anode side of an all-solid-state lithium-ion secondary battery, respectively, and an all-solid-state lithium-ion secondary battery comprising the same are disclosed. The electrolyte composite for an all-solid-state lithium-ion secondary battery comprises two types of phase-separated solid electrolytes, wherein a first solid electrolyte disposed on a cathode side and a second solid electrolyte disposed on an anode side form a layered structure.
Absstract of: EP4773120A1
0001 Provided are a battery cell assembly process simulation system and an operating method thereof capable of efficiently train new trainees on actual process equipment without affecting the operation of actual process equipment. The system includes: a server storing basic information and training information about a training equipment comprising a training target battery cell process equipment, and work history of a participating trainee; a terminal providing the training information to the participating trainee; an input interface provided at the terminal for inputting information of the participating trainee; and a training contents selection logic extracting a work history of a corresponding trainee corresponding to inputted information of the trainee and constructing a training curriculum to be provided to the terminal based on an extracted work history.
Absstract of: EP4773331A2
Provided are an integrated energy storage unit, an energy storage-power expansion pack, and an energy storage device. The integrated energy storage unit includes an integrated unit case and a first firefighting module. The integrated unit case includes a first battery box housing and a heat sink housing that are detachably connected to each other. A first battery module is fixed in the first battery box housing. An inverter circuit board is fixed in the heat sink housing. The inverter circuit board is configured for a conversion between an alternating current and a direct current and heat dissipation to an exterior environment through the heat sink housing. The first firefighting module is disposed in the integrated unit case. The first firefighting module includes a trigger mechanism, a fire-extinguishing agent storage compartment, and a release mechanism. The trigger mechanism is disposed in a firefighting detection region in the integrated unit case and configured to generate a trigger signal when a firefighting trigger condition in the firefighting detection region is met. The fire-extinguishing agent storage compartment is configured to store a fire extinguishing agent. The release mechanism is configured to, in response to the trigger signal from the trigger mechanism, release the fire extinguishing agent into a chamber where the first battery module is located.
Absstract of: EP4772290A1
Disclosed are a cup holder dust removal mechanism and a battery production line. The cup holder dust removal mechanism includes a conveyor line (20), a box (30), a transfer apparatus (40), a blowing apparatus (50), and an extraction apparatus (60). The conveyor line (20) passes through the box (30), the transfer apparatus (40), the blowing apparatus (50), and the extraction apparatus (60) are mounted on the box (30), the transfer apparatus (40) includes a transfer track (410), the transfer track (410) includes an inlet section (411), an outlet section (412), and a working section (413) located between the inlet section (411) and the outlet section (412), an inlet of the inlet section (411) and an outlet of the outlet section (412) are both docked with the conveyor line (20), in a vertical direction, at least part of a projection of the working section (413) does not overlap with a projection of the conveyor line (20), the blowing apparatus (50) includes a blowing nozzle (51), and the extraction apparatus (60) includes an extraction end (61). The technical solution of the present application aims to remove dust and/or foreign matter remaining in the cup holder during cyclic use, reduce the probability of contaminating cells, and improve the product quality of batteries.
Absstract of: EP4773361A1
0001 The present invention relates to a pouch film laminate body including a base layer, a gas barrier layer, and a sealant layer, which are sequentially laminated, wherein an amount of a slip agent present on the surface of the sealant layer is 5 mg/m<2> to 25 mg/m<2>, wherein the amount of the slip agent is obtained by cutting the pouch film laminate body to 100 mm in an MD x 100 mm in a TD, adding 5 ml of chloroform dropwise on the surface of the sealant layer of the pouch film laminate body, followed by leaving the pouch film laminate body to stand for 1 minute, thereby preparing a slip agent extraction solution, and then measuring an amount of the slip agent contained in the slip agent extraction solution by gas chromatography.
Absstract of: EP4772262A1
0001 The present disclosure provides an air vent device comprising: a body unit having an oblique line-shaped groove formed therein; and an insertion unit having a protrusion coupled to the oblique line-shaped groove, wherein a space is formed between the insertion unit and the body unit by the movement of the protrusion in a state coupled to the oblique line-shaped groove, and wherein the oblique line-shaped groove comprises a first hooking groove at one side end and a second hooking groove at the other side end, and a filter comprising the same.
Absstract of: EP4773275A1
A method for monitoring a bending position of a preliminarily bent electrode tab in real time prior to winding an electrode assembly is provided. The monitored target is the position where the electrode tab is bent. The method includes (a) acquiring an image using a camera having a shooting direction substantially perpendicular to a plane including the electrode by detecting light irradiated in a direction substantially parallel to the shooting direction and reflected from a bent portion of the non-coated area; and (b) measuring a distance between an incision groove and the bending line in widthwise direction from the image acquired by the image acquisition device, wherein the incision groove is an inner end of the incision.
Absstract of: EP4773402A1
0001 A busbar joint plate for a battery module according to an exemplary embodiment of the present invention is a busbar joint plate for a battery module, the busbar joint plate being coupled to a busbar for connecting the busbar and a circuit board, the busbar being provided for electrical connection of a plurality of battery cells in the battery module including the plurality of battery cells, the busbar joint plate including a busbar coupling portion coupled to the busbar; a board coupling portion connected to the circuit board; and a connection portion between the busbar coupling portion and the board coupling portion. The busbar joint plate and battery module according to an exemplary embodiment of the present invention can prevent damage to an FPCB through the busbar joint plate having a bent structure.
Absstract of: EP4773388A1
Disclosed is a battery module, which includes a cell stack including stacked battery cells; a module case having a gas venting hole in a lower plate and configured to accommodate the cell stack; and a venting guide member including a body portion having a property that is bendable by heat and a needle portion coupled to the body portion, and the venting guide member is disposed on the lower plate such that when a temperature of the body portion increases higher than a predetermined temperature, the body portion is bent and the needle portion faces and contacts the battery cell.
Absstract of: EP4773387A1
A secondary battery (500) and an electronic device (400) are provided. The secondary battery (500) includes a housing (600), an electrode assembly (700), and a current-collecting plate (902). The housing (600) includes an end wall configured with an explosion-proof valve (904). The electrode assembly (700) is accommodated within the housing (600), with a tab (716) extending from an end of the electrode assembly (700) facing the explosion-proof valve (904). The current-collecting plate (902) is welded to the tab (716) and includes a first opening (102) passing through the center thereof and multiple second openings (104). The first opening (102) extends in a radial direction of the current-collecting plate (902). The second openings (104) are distributed on both sides of the first opening (102). A portion between end portions of the second openings (104) close to the first opening (102) and the first opening (102) constitutes a tearable portion (108).
Absstract of: EP4773203A1
An electrode plate, a battery cell, and an electronic device are provided. The electrode plate includes a current collector and a first active material layer. A surface of the first active material layer on a side facing away from the current collector is provided with a plurality of first grooves arranged at equal intervals along a second direction. Viewed along the first direction, each first groove extends from one side of the first active material layer in a third direction to the other side of the first active material layer in the third direction. An extension direction of each first groove is inclined relative to the second direction. Extension directions of the plurality of first grooves are parallel to each other. An angle between the extension direction of the first groove and the second direction is θ, satisfying 0 < θ < 90°. A spacing between two adjacent first grooves in a second direction is W2, and θ and W2 satisfy: 0.5 ≤ 1/(W2 × tanθ) ≤ 1.5, the unit of W2 is mm. The first groove is conducive to reducing the risk of lithium deposition of the battery cell.
Absstract of: EP4773414A1
Provided is a cylindrical battery cell having a simple structure, a simple assembly process, and high energy density. An electrode assembly is accommodated in an accommodation space of a can of the battery cell. One electrode of the electrode assembly is bonded to an end wall provided at a lower end portion of the can, and the other electrode of the electrode assembly is bonded to a cap covering an opening provided at an upper end portion of the can. The bonding is performed by irradiating a laser to the end wall and an outer surface of the cap to penetrate and weld the end wall and the outer surface of the cap. A first current collecting plate including a radially extending portion and an axially extending portion is interposed between the cap and the electrode assembly. The radially extending portion is bonded to a first electrode of the electrode assembly, and an upper end portion of the axially extending portion is bonded to a bottom surface of the cap.
Nº publicación: EP4773368A1 08/07/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD.
Absstract of: EP4773368A1
A battery cell assembly according to certain aspects of the present disclosure comprises: a battery cell stack in which a plurality of battery cells are stacked; a frame member that houses the battery cell stack; and an inlet and an outlet that circulate a coolant into the frame member, wherein the coolant is flowed into the frame member through the inlet and discharged through the outlet, wherein a reinforcing plate is inserted into at least one of an upper part or a lower part of the frame member, and wherein the reinforcing plate includes a reinforcing main body that is located inside the frame member, and at least one reinforcing protrusion that protrudes from one surface of the reinforcing main body toward one surface of the frame member.
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