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1121
results.
Updated on
22/04/2026 [16:11:00]
Results 425 to 450 of 1121
Absstract of: EP4726889A1
0001 A battery (2) includes multiple battery groups (10) and multiple straps (20). The multiple battery groups (10) are arranged along a first direction, each battery group (10) including multiple battery cells (11) stacked along a second direction, the second direction intersecting the first direction. At least a portion of the strap (20) is disposed on a side surface of at least one battery group (10) along the first direction and configured to constrain the multiple battery cells (11) of at least one battery group (10). At least two straps (20) pass between adjacent battery groups (10) and are configured to constrain the adjacent battery groups (10), the at least two straps (20) not overlapping in the first direction and overlapping in a third direction, the third direction being perpendicular to the first direction and the second direction.
Absstract of: EP4726902A2
Disclosed is a separator for an electrochemical device having a low content of secondary particles formed by aggregation of an inorganic particles in the inorganic coating layer. Particularly, the separator has a low content of secondary particles protruding from the separator surface to a predetermined height or more. Since the inorganic particles are not aggregated but are distributed homogeneously in the inorganic coating layer, the separator allows uniform dispersion of pressure over the whole surface of the separator, when it is applied to a battery and pressure is generated in the battery due to the charge/discharge of the battery. In this manner, it is possible to minimize deformation of the separator. Meanwhile, when using a porous film made of a polymer material as a separator substrate, there is a low tendency for intensive application of pressure from the secondary particles to a local site of the separator substrate, and thus the separator substrate is less damaged and a possibility of short-circuit generation is reduced.
Absstract of: EP4726870A2
An electrode assembly according to the present invention is a jelly roll-type electrode assembly manufactured by winding a negative electrode, a separator, and a positive electrode together from ends thereof, the electrode assembly comprising a negative electrode which is manufactured by applying a negative electrode active material to a surface of a negative electrode collector and which has, formed on one end thereof, a negative electrode collector-exposed portion that is not coated with the negative electrode active material to expose the surface of the negative electrode collector. The negative electrode is wound together with a separator and a positive electrode such that the negative electrode collector-exposed portion is disposed in a central region where the winding starts, and a negative electrode tab is coupled to the negative electrode collector-exposed portion.
Absstract of: EP4725674A1
Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen eines Substrats, einer Walzvorrichtung, einen Trockenfilm und ein mit dem Trockenfilm beschichtetes Substrat.
Absstract of: EP4726377A1
A detection device (100) and a detection method for detecting a battery cell (200) are provided. The detection device (100) includes a supporting mechanism (10), a rotary mechanism (20), a conveying mechanism (30), and a detection mechanism (23). The rotary mechanism (20) is provided on the supporting mechanism (10), and the rotary mechanism (20) includes a rotary bracket (21) provided on the supporting mechanism (10) and a rotary disk (22) rotatable circumferentially relative to the rotary bracket (21); the conveying mechanism (30) passes through the rotary disk (22), and the conveying mechanism (30) is configured to convey a battery cell (200); the detection mechanism (23) is provided on the rotary disk (22), and the detection mechanism (23) includes a radiation source (231) and a detector (232), the radiation source (231) and the detector (232) are configured to detect the battery cell (200) on the conveying mechanism (30), and the radiation source (231) and the detector (232) are rotatable circumferentially on the rotary disk (22).
Absstract of: EP4726842A1
The present application is applicable to the technical field of batteries and provides a restraint structure (100) and a battery restraint apparatus (1000). The battery restraint apparatus (1000) includes a restraint structure (100), the restraint structure (100) including a restraint frame (10), a cushion pad (20), and a positioning column (30). The restraint frame (10) is provided with a positioning hole (101); the cushion pad (20) is arranged on the restraint frame (10); and the positioning column (30) is arranged on the cushion pad (20) and is inserted and fitted into the positioning hole (101). The positioning hole (101) is formed in the restraint frame (10), and the positioning column (30) to be inserted and fitted into the positioning hole (101) is provided on the cushion pad (20), so that the positioning of the cushion pad (20) on the restraint frame (10) can be achieved by inserting the positioning column (30) on the cushion pad (20) into the positioning hole (101). In this way, the problem of misaligned assembly of the cushion pad (20) on the restraint frame (10) can be mitigated, thereby facilitating improving the restraint effect of the restraint structure (100) on a battery cell (2000).
Absstract of: EP4725344A2
0001 The invention relates to an aerosol-generating system for generating an inhalable aerosol. The system comprises an electric heater for vaporizing an aerosol-forming substance, a control unit, a battery for powering the electric heater, a temperature sensor for detecting the initiation of the electric heater, wherein the temperature sensor is connected to the control unit, a housing encompassing the electrical heater, the battery, and the control unit, and a replaceable cartridge for receiving the aerosol-forming substance, the replaceable cartridge being connectable to the housing. The control unit is configured to prevent charging of the battery, when the initiation of the electric heater is detected.
Absstract of: EP4726839A1
0001 An electrolytic solution, a battery cell, a preparation method therefor, a battery, and an electrical device. The electrolytic solution includes an electrolyte salt and an additive, the electrolyte salt includes a first electrolyte salt shown in formula (1), the additive includes a first additive shown in formula (2), the content by weight of the first electrolyte salt in the electrolytic solution is denoted as x, the content by weight of the first additive in the electrolytic solution is denoted as y, both of which are calculated based on the total weight of the electrolytic solution, and 50≤x/y≤500. The electrolytic solution can improve the cycle performance and dynamic performance of the battery.
Absstract of: EP4726378A1
0001 A detection device and a detection method for detecting a battery cell are provided. The detection device (100) includes a supporting mechanism (10), a rotary mechanism (20), a conveying mechanism (30), and a detection mechanism (40). The rotary mechanism (20) is provided on the supporting mechanism (10), and the rotary mechanism (20) includes a rotary bracket (21) provided on the supporting mechanism (10) and a rotary disk (22) rotatable circumferentially relative to the rotary bracket (21); the conveying mechanism (30) includes two reciprocating conveyor belts (32) respectively provided on two sides of the rotary disk (22), and the reciprocating conveyor belts (32) are configured to carry battery cells (200) to enter or leave a detection region; the detection mechanism (23) is provided on the rotary disk (22), and the detection mechanism (23) includes a radiation source (231) and a detector (232), the radiation source (231) and the detector (232) are configured to detect the battery cells (200) on the conveying mechanism (30), and the radiation source (231) and the detector (232) are rotatable circumferentially on the rotary disk (22).
Absstract of: EP4725628A2
A power tool having multiple wireless communication states, the power tool comprising a motor, a battery pack interface that selectively receives a battery pack, a backup power source, a wireless communication controller coupled to the backup power source and the battery pack interface, a switching network coupled between the motor and the battery pack interface, an actuator and a controller coupled to the actuator and the switching network. The wireless communication controller includes a wireless transceiver and a processor. The wireless communication controller is configured to operate in an advertisement state when the wireless communication controller is coupled to and powered by the backup power source. In the advertisement state, the wireless communication controller is configured to transmit an advertisement message including a unique tool identifier. The controller is unpowered when the wireless communication controller is in the advertisement state. The controller is configured to control the switching network to apply power from the battery pack to drive the motor based on actuator activation.
Absstract of: EP4726379A1
A detection device and a detection method for detecting a battery cell. The detection device includes a supporting mechanism (10), a rotatable mechanism (20), a conveying mechanism (30), and a detection mechanism (40). The rotatable mechanism (20) is provided on the supporting mechanism (10); the conveying mechanism (30) is configured to convey a battery cell (200); the detection mechanism (23) is provided on the rotatable mechanism (20), and the detection mechanism (23) includes a radiation source (231) and a detector (232), the radiation source (231) and the detector (232) are configured to detect the battery cell (200) on the conveying mechanism (30), and the radiation source (2312) and the detector (232) are rotatable circumferentially on the rotatable mechanism (20).
Absstract of: EP4726952A1
0001 A power supply circuit and an energy storage device are provided. The power supply circuit includes a DC/DC conversion module, a first AC/DC conversion module, a second AC/DC conversion module, an alternating current input interface, a first alternating current output interface, and a second alternating current output interface. A first end of the first AC/DC conversion module is connected to a battery module through the DC/DC conversion module, a first end of the second AC/DC conversion module is connected to the first end of the first AC/DC conversion module through a direct current bus, the first alternating current output interface is connected to a second end of the first AC/DC conversion module and a first terminal of the alternating current input interface, the second alternating current output interface is connected to a second end of the second AC/DC conversion module, both the first AC/DC conversion module and the second AC/DC conversion module may operate in a rectification mode or an inversion mode, and the DC/DC conversion module operates in a discharging mode or a charging mode.
Absstract of: EP4726898A2
0001 The present application provides a battery module and an electric vehicle. The battery module includes a case (1) provided with exhaust ports, and a longitudinal beam (2). The case includes a bottom guard board (11). The longitudinal beam (2) is disposed in the case (1) and abutted against the bottom guard board (11) of the case (1) to partition accommodating areas in the case (1) on both sides of the longitudinal beam (2) along a width direction. A cross beam (3) is disposed in the accommodating areas, and the cross beam (3) is disposed at an included angle with the longitudinal beam (2). The cross beam (3) and the longitudinal beam (2) are respectively provided with a first cavity therein along their own length directions, and ridge plates are cross-arranged and disposed in the first cavity.
Absstract of: EP4726864A1
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a housing, a pressure relief mechanism, and a reinforcement member. The housing has a first wall portion, and the first wall portion is provided with a first groove. The pressure relief mechanism is disposed on the first wall portion. The reinforcement member is at least partially accommodated in the first groove, and the reinforcement member is disposed around the pressure relief mechanism. The reinforcement member is accommodated in the first groove, reducing the height by which the reinforcement member protrudes beyond the first wall portion. The provision of the first groove can reduce the weight of the first wall portion. The reinforcement member is at least partially accommodated in the first groove, which can enhance the rigidity and strength at the position where the first groove is provided, thereby improving the strength and rigidity of the first wall portion without significantly increasing its weight. When the first wall portion is subjected to an external impact, the reinforcement member can absorb energy of the external impact, which reduces the risk of damage to the pressure relief mechanism caused by the external impact, allowing the pressure relief mechanism to implement normal pressure relief function.
Absstract of: EP4726820A1
This application relates to the field of battery processing technologies, and particularly discloses a winding system and a winding method thereof. The winding system includes an electrode plate unwinding mechanism, a separator unwinding mechanism, a winding mandrel, a cutter, and an auxiliary wheel mechanism. The electrode plate unwinding mechanism is configured to unwind an electrode plate, and the separator unwinding mechanism is configured to unwind a separator; the winding mandrel is configured to wind the electrode plate and the separator to form a winding core; the cutter is configured to cut the electrode plate and is arranged upstream of the winding mandrel; the auxiliary wheel mechanism is arranged downstream of the cutter, where the auxiliary wheel mechanism includes an auxiliary wheel, a first drive member, and a second drive member, the first drive member is configured to drive the auxiliary wheel to move closer to or away from the electrode plate, and the second drive member is configured to drive the auxiliary wheel to rotate to adjust the tension of the electrode plate.
Absstract of: EP4726899A1
An electrochemical apparatus and an electronic apparatus are provided. The electrochemical apparatus includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte, the separator is disposed between the positive electrode plate and the negative electrode plate, the separator includes a porous substrate, and the porous substrate includes a first polyethylene resin material and a second polyethylene resin material; where a melting enthalpy of the first polyethylene resin material is 110 J/g to 160 J/g, a melting enthalpy of the second polyethylene resin material is 170 J/g to 205 J/g, and a shutdown rate of the separator is 10 kΩ/min to 80 kΩ/min; based on the mass of the porous substrate, a mass percentage of the first polyethylene resin material is 10% to 40%, and a mass percentage of the second polyethylene resin material is 45% to 88%. The separator exhibits a relatively high shutdown rate, enabling rapid shutdown at a relatively low temperature with good shutdown effectiveness, thereby improving the high-temperature safety performance and electrochemical performance of the electrochemical apparatus.
Absstract of: EP4726872A1
A battery (100) is provided, including an electrode assembly (20) and a packaging bag (10) configured to accommodate the electrode assembly (20), where the packaging bag (10) includes a nylon layer (16), the nylon layer (16) includes a coloring material, an average of color difference values L of the nylon layer (16) is greater than or equal to 6 and less than or equal to 12, and a standard deviation of the color difference values L of the nylon layer (16) is σ and satisfies σ≤0.2. The nylon layer (16) includes the coloring material, and during fabrication of the nylon layer (16), through adjusting an amount of the coloring material and a thickness of a nylon material, a color difference of the nylon layer (16) can be adjusted. Additionally, the average and standard deviation of the color difference values L of the nylon layer (16) satisfy the foregoing ranges, so that an even color difference can be achieved. Meanwhile, during preparation of the packaging bag (10), since the nylon layer (16) has coloration, the nylon layer (16) can be directly bonded to a metal layer (15), and therefore fillers such as black ink are not needed, thereby enhancing bonding between the nylon layer (16) and the metal layer (15) to improve mechanical strength and punching performance of the packaging bag (10).
Absstract of: EP4726907A2
0001 Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. At least one of the first electrode and the second electrode includes an uncoated portion at a long side end, a part of the uncoated portion is exposed to the outside of the separator along a longitudinal direction of the electrode assembly, at least a part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface, and the bending surface may include a region in which the number of overlapping layers of the uncoated portion is substantially kept constant as a criterion layer number along the radial direction The welding region of the current collecting plate welded to the bending surface may overlap with the region in which the number of overlapping layers of the uncoated portion is kept as the criterion layer number.
Absstract of: EP4726879A2
The present technology relates to a gas venting device, and a battery module and a battery pack including the same. A cross-sectional area of a flow path is continuously reduced in a gas discharge direction, and thus a larger amount of gas is allowed to be discharged even when a venting disc having the same area is used.
Absstract of: EP4726884A2
0001 A battery module according to an embodiment of the present disclosure includes a cell assembly including a plurality of battery cells, and a frame assembly covering at least one side of the cell assembly, and configured to guide direct connection between electrode leads of adjacent battery cells.
Absstract of: EP4726788A2
The present disclosure relates to powder for an electrode for manufacturing a dry electrode for a secondary battery, including an active material, a conductive material and a binder, and showing a resistivity of 700 Ω·cm or less when being pressurized under a pressure of 50 MPa. The present disclosure also relates to a method for preparing the powder for an electrode, a method for manufacturing a dry electrode using the powder for an electrode, a dry electrode, a secondary battery including the dry electrode, an energy storage apparatus, and an apparatus for manufacturing a dry electrode.
Absstract of: EP4726891A2
0001 Discussed is a pack case including a module area where a cell stack is placed, wherein the pack case includes a base plate that supports a lower portion of the cell stack, a main partition wall extending across the base plate and perpendicularly coupled to a central portion of the base plate, a side wall perpendicularly coupled to an edge of the base plate along a perimeter of the base plate, and an auxiliary partition wall of which opposite ends are coupled to the main partition wall and the side wall, respectively, and which includes a pair of reinforcement plates coupled to each other, and a reinforcement plate of the pair of reinforcement plates includes a plurality of reinforcement ribs protruding and extending in a longitudinal direction of the reinforcement plate.
Absstract of: EP4725901A2
A negative electrode active material, a preparation method therefor, a secondary battery, a battery module comprising a secondary battery, a battery pack, and a device. The negative electrode active material comprises a core and a coating layer that covers at least a portion of a surface of the core. The core comprises artificial graphite, the coating layer comprises amorphous carbon, the volume particle size distribution of the negative electrode active material is Dv99≤24 µm, and the average volume particle size of the negative electrode active material is Dv50 satisfies 8 µm≤Dv50≤15 µm, wherein Dv99 is the corresponding particle size when a cumulative volume distribution percentage of the negative electrode active material reaches 99%, and Dv50 is the corresponding particle size when the cumulative volume distribution percentage of the negative electrode active material reaches 50%.
Absstract of: EP4725752A2
0001 A battery management system includes a sensing unit to generate a sensing signal indicating a battery voltage and a battery current of a battery, a memory unit to store a charge map recording a correlation between first to n
Nº publicación: EP4726834A1 15/04/2026
Applicant:
SK ON CO LTD [KR]
Absstract of: EP4726834A1
According to exemplary embodiments, an electrode structure for a lithium secondary battery includes a first electrode, a second electrode disposed opposite the first electrode, and a plurality of electrolyte layers sequentially formed between the first electrode and the second electrode. Some of the electrolyte layers may have different mechanical strengths or ionic conductivities. As a result, a lithium secondary battery having improved electrochemical stability and output characteristics may be provided.
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