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1121
results.
Updated on
22/04/2026 [16:11:00]
Results 550 to 575 of 1121
Absstract of: EP4726892A1
0001 The present disclosure relates to a face-to-face cooling plate and a battery pack including the same. The face-to-face cooling plate capable of absorbing displacement that occurs when a battery cell swells to prevent a sudden decrease in lifetime of a battery and prevent leakage of coolant that is caused by swelling compression. The face-to-face cooling plate includes a cooling chamber which is provided between battery cells and forms a space therein so that cooling fluid is circulated and a leakage prevention unit provided in the cooling chamber, and accommodates the cooling fluid when the battery cell swells.
Absstract of: EP4726832A1
0001 An electrode assembly (20) includes a separator (13) folded multiple times with bent portions alternating on a first side (13a) and a second side (13b) thereof in a zigzag form, a first electrode (11) inserted into an inner side of each of the bent portions on the first side (13a) of the separator (13), a second electrode (12) inserted into an inner side of each of the bent portions on the second side (13b) of the separator (13), and a fixing member (14) fixing the separator (13), the first electrode (11), and the second electrode (12), the fixing member (14) including a hydrogel.
Absstract of: EP4726810A1
A multilayered separator for a lithium secondary battery according to embodiments of the present disclosure includes: a porous substrate; a first coating layer disposed on one surface of the porous substrate, and including a first binder, a nitrate compound and a first lithium salt; and a second coating layer disposed on a surface of the porous substrate opposite the surface in contact with the first coating layer, and including a second binder and a second lithium salt.
Absstract of: EP4726961A1
0001 Disclosed are a battery management system, an encoding method for the battery management system, and an electronic device. The battery management system includes: a battery management control panel (BMC) and at least two battery cell sampling control panels (CMC, CMC1-CMCN). Each of the battery cell sampling control panels (CMC, CMC1-CMCN) includes a bridge chip. The battery management control panel (BMC) is configured to send a first level signal to a GPIO port (GPIO0-GPIO4) of the bridge chip contained in each battery cell sampling control panel (CMC, CMC1-CMCN) to change an ID status of an ID port of the battery cell sampling control panel (CMC, CMC1-CMCN). The first level signal sent by the battery management control panel (BMC) to each of the battery cell sampling control panels (CMC, CMC1-CMCN) is different from one another. The ID status represents a unique identifier of the battery cell sampling control panel (CMC, CMC1-CMCN).
Absstract of: EP4726852A1
A battery module (10) includes: a frame (100) including a cell mounting portion (110) on which a battery cell (300) is mounted, and a board mounting portion (120) connected to a side of the cell mounting portion (110). The battery module (10) includes a protection circuit board portion (200) electrically connected to the battery cell (300) and mounted on the board mounting portion (200). The board mounting portion (200) includes a contact support portion (121) protruding toward an inside of the board mounting portion (200) and contacting and supporting the protection circuit board portion (200).
Absstract of: EP4726893A1
The present disclosure relates to a secondary battery module and is directed to providing a secondary battery module capable of maintaining a physically stable structure even when a secondary battery deforms. The secondary battery module includes a plurality of secondary batteries arranged in a first direction, and a partition member positioned in a gap between two adjacent secondary batteries among the plurality of secondary batteries. The partition member has a variable length at least in the first direction in response to an electrical signal applied to the partition member.
Absstract of: EP4725908A1
0001 A positive electrode active material, a method for preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a rechargeable battery (e.g., a rechargeable lithium battery) including the positive electrode are disclosed. The positive electrode active material may have a disordered rocksalt structure. The positive electrode active material includes a compound represented by Chemical Formula 1, wherein a ratio of M<1> having an oxidation number of +2 is less than or equal to about 25 at%, based on a total of 100 at% of M<1>.
Absstract of: EP4726850A1
0001 A protection circuit module (210) of a battery assembly includes a substrate (220), a component mounted on the substrate (220), and a tab connection portion (240) spaced from the component on the substrate and to which an electrode tab (150) of a battery cell (100) is connected, wherein a first barrier (410) and a second barrier (420) are on the tab connection portion (240) and face each other.
Absstract of: EP4726801A1
A positive electrode active material includes a lithium nickel-based composite oxide in a form of secondary particles, each of the secondary particles being formed by aggregated primary particles. A coating layer including amorphous carbon and carbon nanotubes is provided on surfaces of the secondary particles. The carbon nanotubes in the coating layer are randomly arranged on the surfaces of the secondary particles and physically interconnect the primary particles. The amorphous carbon in the coating layer is disposed between the secondary particles and the carbon nanotubes.
Absstract of: EP4726862A1
A battery module includes a plurality of battery cells, busbars electrically connecting the plurality of battery cells, a holder positioned on the plurality of battery cells and accommodating the bus bars, and a cover portion positioned on the holder and covering the bus bars, wherein the cover portion includes a first layer, a second layer positioned on the first layer, and a third layer positioned on the second layer, and the second layer includes a material different from those of the first layer and the third layer.
Absstract of: EP4726867A1
A battery case and a pouch-type (kind) secondary battery including the same are provided. The battery case includes an accommodating portion (111) accommodating an electrode assembly having an electrode lead (20) attached thereto and a sealing portion (130) provided along an outer periphery of the accommodating portion, sealing the accommodating portion, and having a side from which the electrode lead is drawn, in which the outer periphery of the accommodating portion is defined by a first edge on which the electrode lead is arranged and a second edge forming a preset angle with the first edge, and a bending portion having a set or predetermined depth is formed to extend in the sealing portion, and the sealing portion (130) is bent from the bending portion toward the accommodating portion (111).
Absstract of: EP4726406A1
The present disclosure relates to a device and method for building a battery model. In some embodiments, a battery simulation device includes a control device configured to: generate a battery model simulating a target battery; perform a fist charging simulation of the battery model at a first charging rate to set a plurality of capacitive parameters among a plurality of parameters configuring the battery model; and perform a second charging simulation of the battery model at a second charging rate different from the first charging rate to set a plurality of resistive parameters among the plurality of parameters.
Absstract of: EP4726420A1
0001 A battery management apparatus according to an embodiment disclosed herein includes a voltage measurement unit configured to measure a voltage of each of a plurality of batteries and a controller configured to calculate, as a first voltage of each of the plurality of batteries, a deviation between an average voltage of the plurality of batteries and the voltage of each of the plurality of batteries, calculate a long moving average and a short moving average of the first voltage for each of the plurality of batteries, determine at least one noise battery based on the short moving average of each of the plurality of batteries, calculate a first deviation that is a deviation between the long moving average and the short moving average for each of a plurality of target batteries except for the at least one noise battery among the plurality of batteries, and calculate a second deviation that is a mean value of first deviations of the plurality of target batteries and diagnose at least one target battery among the plurality of target batteries based on a first diagnosis deviation that is a difference between the first deviation and the second deviation for each of the plurality of target batteries.
Absstract of: EP4726843A1
0001 The present application discloses a battery pressurization device and a battery production system. The battery pressurization device includes a bearing mechanism, a first pressurization plate, and a second pressurization plate. The first pressurization plate and the second pressurization plate are disposed on the bearing mechanism and are opposite to each other in a first direction. The first pressurization plate and the second pressurization plate can move towards each other in the first direction to apply pressure to a battery cell disposed between the first pressurization plate and the second pressurization plate from both sides.
Absstract of: EP4726833A1
Disclosed are a secondary battery pressing apparatus for pressing a secondary battery including a battery case receiving an electrode assembly having a pair of electrode leads located opposite each other and a sealed portion at an edge of the battery case, the secondary battery pressing apparatus including a pair of pressing plates configured to press one surface and an other surface of the battery case and a pair of tight contact members configured to be brought into tight contact with a corner portion of the battery case by the pair of pressing plates, and a pressing method using the same.
Absstract of: EP4726421A1
Disclosed is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a processor configured to control a stimulation application device to intermittently apply a second electric stimulation greater than a first electric stimulation to a target cell during a state change period, and a communication unit configured to obtain current time series data during the state change period and voltage time series data representing a change history of a full-cell voltage of the target cell during rest periods of the second electric stimulation given in the state change period. The processor generates a measurement full-cell profile based on the current time series data and the voltage time series data, and analyzes the measurement full-cell profile to estimate a negative electrode participation start point.
Absstract of: EP4726953A1
A monitoring device (50) monitors a battery (14) mounted on an eVTOL. The monitoring device (50) includes an acquisition unit (51) and an output unit (53). The acquisition unit (51) acquires information on temperature unevenness of a battery (14) that occurs due to movement of an eVTOL in the vertical direction. The output unit (53) outputs a monitoring result when a predetermined condition, which is related to an abnormality of the battery (14), is satisfied based on information related to the temperature unevenness. By monitoring the temperature unevenness, an abnormality of the battery (14), which is caused by progress of partial deterioration of the battery (14), can be detected in an early stage. Thus, safety of flight can be enhanced.
Absstract of: EP4726844A1
According to an embodiment of the present disclosure, provided is a bipolar unit cell comprising: a positive electrode including a positive electrode current collector, and a positive electrode material layer formed on one surface of the positive electrode current collector so that a positive electrode non-coated portion is formed at the edge, a negative electrode including a negative electrode current collector, and a negative electrode material layer formed on one surface of the negative electrode current collector so that a negative electrode non-coated portion is formed at the edge, and a separator,wherein the positive electrode material layer and the negative electrode material layer are stacked so as to face each other while interposing a separator between them, and wherein a cured gel electrolyte is contained in at least one selected from the group consisting of the positive electrode material layer, the negative electrode material layer, and the separator, a manufacturing method thereof, and a bipolar battery having a structure in which two or more of the bipolar unit cells are stacked,
Absstract of: EP4726824A1
The present invention provides an isostatic pressurization method for an electrode assembly comprising a positive electrode comprising a positive electrode current collector and a positive electrode active material layer, a negative electrode comprising a negative electrode current collector and a negative electrode active material layer, and a solid electrolyte layer, wherein the solid electrolyte layer is laminated to bond one side to the negative electrode active material layer, and a positive electrode is laminated to bond the other side of the solid electrolyte layer to the positive electrode active material layer, wherein the electrode assembly has a stacked form in which the negative electrode protrudes beyond the end of the positive electrode thereby forming a step,wherein the isostatic pressurization is performed with a protective member in the form of a band extending vertically from the outer circumferential surface of the negative electrode end protruding from the electrode assembly to the positive electrode, wherein a space formed by the step is located between the protective member and the positive electrode; and an all-solid-state battery comprising the electrode assembly and the protective member.
Absstract of: GB2644534A
A battery management system (10) is provided with inspection devices (411, 412, 421, 422), a first database, a second database, and a central management device (20). The inspection devices (411, 412, 421, 422) measure an SOC-OCV property of a battery module, and generate the results of inspecting the usage state of the battery module that includes the SOC-OCV property. The first database stores the results of inspecting the usage states of batteries from the inspection devices. The second database stores quality information at the time of manufacture of battery cells used in the battery modules. The central management device (20) is able to access the first database and the second database. The central management device (20) analyzes degrees of degradation of the battery modules from the SOC-OCV properties, and generates and stores defect information about batteries on the basis of the results of analyzing the degrees of degradation, the results of inspecting the usage states, and the quality information. The central management device (20) acquires the quality information of the battery cells from the second database if there has been determined, from the results of analyzing the degrees of degradation, to be a defect caused by quality at the time of manufacture of the battery cells. The central management device (20) notifies the first database about those contents, of the defect information, that are related to the quality information, and notifies the inspection devices of
Absstract of: GB2630934A
A rechargeable battery pack includes two battery modules 3, 4 located inside a housing, each module comprising a plurality of battery cells 5. At least one closed loop channel 24 within the housing extends vertically from an upper end of the battery pack to a a lower end of the battery pack. The closed loop channel is partially filled with a phase change material which at a first temperature has a liquid form and lies towards the bottom of the channel and at a second higher temperature has a gaseous form and rises towards the top of the channel. A heat sink 15 located above the battery modules is in contact with an upper portion of the closed loop channel. A recharging station for an electric vehicle including the battery pack has a connector for connecting a source of chilled fluid to a fluid channel within the cooling plate of the battery pack and for extracting fluid that has circulated through the plate; and a source of electrical energy connectable to a charging port located on the vehicle for charging the cells of the battery pack.
Absstract of: EP4726798A2
A negative electrode active material is granular, and the negative electrode active material includes first particles and second particles, where a sphericity of the first particles is greater than a sphericity of the second particles, the sphericity of the first particles is 0.6 to 1.0, and a particle size Dv50 of the first particles is smaller than a particle size Dv50 of the second particles. Applying the negative electrode active material of this application to a secondary battery can increase a compacted density of a battery electrode plate, thereby increasing the energy density of the secondary battery while improving the cycling performance of the secondary battery.
Absstract of: EP4726951A1
0001 Provided in the embodiments of the present application are a charging and discharging circuit and method, and a computing device and a storage medium. Two energy storage elements in the charging and discharging circuit are connected by means of a first adjustment switch module, after a switch is turned on, heating control is performed, and self-heating of a battery is realized by means of an alternating current generated by a charging and discharging loop between a dual-driving electric motor and the battery. The present application can flexibly adjust a charging and discharging loop between a traction battery and an energy storage element without changing the original structure of an electric motor, such that the cost is reduced, and the charging and discharging of a dual-driving electric motor can be flexibly adjusted so as to implement a battery self-heating scheme, thereby increasing a heating rate.
Absstract of: WO2024254307A1
A battery protection system to protect a battery with a base layer and a cell housing is described. The cell housing has a first and second portion and the second portion has an extended portion that extends outwardly from the first portion. The battery protection system has a battery housing with at least one compartment, a first end, and a second end opposite the first end. The at least one compartment is sized to releasably receive the cell housing, the first end of the battery housing is releasably securable to the base layer, and the second end is open to receive the first portion of the cell housing. The battery protection system has a second layer sized to be received within the at least one compartment of the battery housing and the base layer, the cell housing, and the second layer provide a battery protection function.
Nº publicación: EP4726836A1 15/04/2026
Applicant:
TERAWATT TECH K K [JP]
Absstract of: EP4726836A1
The present invention provides a lithium secondary battery which is allowed to achieve both high safety and excellent performance stability at a high temperature. The present invention relates to a lithium secondary battery including a positive electrode that has a positive electrode current collector and a positive-electrode active material layer, a negative electrode that has a negative electrode current collector, an electrolyte solution, and a separator, in which the positive electrode current collector and/or the negative electrode current collector has a current collector film that includes a resin layer containing polyethylene terephthalate and a metal layer provided on each of both surfaces of the resin layer, the positive-electrode active material layer contains one or more compounds represented by a general formula: LizNixCoyM1-x-yO2+α (here, 0.5 ≤ x ≤ 1.0, 0 ≤ y ≤ 0.35, 0.9 ≤ z ≤ 1.3, - 0.2 ≤ α ≤ 0.15, and M is one or more elements selected from the group consisting of Mn, Al, V, Mg, Mo, Nb, Ti, Zr, Fe, Cu, Cr, Zn, F, and B), and the electrolyte solution contains a chain-like carbonate and/or a chain-like ether, vinylene carbonate, and lithium difluorophosphate.
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