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1121
results.
Updated on
22/04/2026 [16:11:00]
Results 525 to 550 of 1121
Absstract of: EP4726825A1
A secondary battery is disclosed. According to one aspect of the present disclosure, there is provided a secondary battery including: a can including an opening; an electrode assembly including a first hollow and disposed in the can; a cap plate that closes the opening; and an electrode rod extending to pass through the first hollow, wherein the electrode rod includes: a first end portion exposed to the outside of the can and forming an electrode terminal; and a second end portion disposed on an opposite side corresponding to the first end portion.
Absstract of: EP4726344A1
0001 A propulsion system (20) includes a battery (64), a plurality of temperature sensors (110), and a controller (92). The battery includes a plurality of battery cells (112). Each temperature sensor of the plurality of temperature sensors is disposed at a respective battery cell of the plurality of battery cells. The controller includes a first control channel (94). The first control channel is configured to monitor a temperature of each battery cell of the plurality of battery cells measured, execute a model (136) trained to identify a faulted condition or an unfaulted condition of each temperature sensor of the plurality of temperature sensors using one or more operating parameters of the propulsion system, and identify the faulted condition or the unfaulted condition of a first temperature sensor of the plurality of temperature sensors using the model to determine an expected temperature range for the first temperature sensor based on the one or more operating parameters.
Absstract of: EP4726854A1
A propulsion system (20) includes a battery (64), a plurality of temperature sensors (110), and a controller (92). The battery (64) includes a plurality of battery cells (112). Each temperature sensor of the plurality of temperature sensors (110) is disposed at a respective battery cell of the plurality of battery cells (112). The controller (92) includes a first control channel (94) and a second control channel (96). The first control channel (94) is connected in signal communication with the plurality of temperature sensors (110). The second control channel (96) is connected in signal communication with the plurality of temperature sensors (110). Each of the first control channel (94) and the second control channel (96) is configured to monitor a temperature of each battery cell of the plurality of battery cells (112) measured using the plurality of temperature sensors (110).
Absstract of: EP4726830A1
0001 A secondary battery includes: an electrode assembly including a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; a lower case having an open top, and including a receiving portion to receive the electrode assembly; and an upper case sealing the open top of the lower case. A first electrode terminal electrically connected to the first electrode is located on one side surface of the lower case; the upper case is integrally extended from an upper edge portion of the one side surface; and the upper case is connected to edge portions of the lower case, other than the upper edge portion of the one side surface, from among open upper edge portions of the lower case.
Absstract of: EP4726821A1
A system for manufacturing a secondary battery assembly includes a stacking table configured to have a plurality of unit electrode cells having a unit electrode tab stacked thereon, to thereby form a cell stack with an electrode tab, and a transfer unit configured to sequentially pick a respective one of the plurality of unit electrode cells, move it to the stacking table and place on top of one another. The system further includes an adhesive spray unit configured to spray adhesive on at least a part of the unit electrode tab of the unit electrode cell placed at a top of the cell stack on the stacking table and a control unit configured to control the adhesive spray unit to perform the adhesive-spraying operation after one unit electrode cell is placed on the stacking table and before a next unit electrode cell is placed.
Absstract of: EP4725878A1
An apparatus for winding an electrode stack on a roll and calendering the electrode stack using said roll. The apparatus comprises said roll. Said roll is adapted to rotate around an axis of rotation. The winding of the electrode stack on said roll is associated with the rotating of said roll. The apparatus comprises a plurality of calender rolls arranged around said roll. The apparatus comprises a plurality of calenders, each of said calenders formed by said roll and a different one of the calender rolls from the plurality of calender rolls.
Absstract of: EP4725906A1
A sulfide solid electrolyte, a method of preparing the same, and an application are provided. The sulfide solid electrolyte has a molecular formula of LiaP1-bMbScOdXe, where 5
Absstract of: EP4726846A1
The invention relates to a battery module assembly method, comprising: providing K battery cells (110), K being a first integer; calculating a respective voltage drop (VD) of the K battery cells (110) due to a respective self-discharge of each of the multiple battery cells (110); selecting N battery cells (110) from the K battery cells (110), N being a second integer smaller than the first integer K; determining an extreme battery cell from the N battery cells (110) that exhibits a maximum voltage drop from the voltage drops (VD), or that exhibits a minimum voltage drop from the voltage drops (VD); calculating a summary statistic (M) as function of the voltage drops of the N battery cells (110) except for the extreme battery cell; calculating an A-value (A) of the N battery cells as function of the calculated summary statistic (M) and the voltage drop (VD) of the extreme battery cell; and if the A-value (A) is larger than a preset threshold (AT), removing the extreme battery cell from the N battery cells (110) and adding an alternative battery cell from the K battery cells (110) such that the N battery cells comprise the alternative battery cell and the N battery cells except for the extreme battery cell, wherein a second A-value (Λ) as calculated as function of the measure (M) and the voltage drop (VD) of the alternative battery cell is smaller than the preset threshold (AT). The invention further relates to a battery module (100).
Absstract of: EP4726342A1
A temperature measurement apparatus includes a base; a thermistor array including a plurality of thermistors in different regions of the base; a power supply circuit configured to supply power to any one of the plurality of thermistors; and a processor connected to the plurality of thermistors and the power supply circuit, and configured to determine a target thermistor among the plurality of thermistors, to control the power supply circuit to supply the power to the target thermistor, to detect a resistance value of the target thermistor, and to calculate a temperature of a region corresponding to the target thermistor on the basis of the resistance value of the target therm istor.
Absstract of: EP4725905A1
0001 Disclosed are a sulfide solid electrolyte and a preparation method and an application thereof. The sulfide solid electrolyte has a molecular formula of LiP<1-b>MS
Absstract of: EP4726955A1
0001 The present disclosure relates to a battery apparatus and a battery pack that are made safer by detecting a battery charging situation through a discharge path (400) when the battery pack is in a shutdown state of the battery pack. To this end, the present disclosure provides a configuration for waking up a processor (100) using a voltage at both ends of a current detection element (500) when the processor (100) is in a sleep state and a battery is charged by a charging current supplied through a discharge path (400).
Absstract of: EP4726828A1
0001 A prismatic-type electric battery cell (1) has a housing (2) having two opposite main walls (2A), an upper wall (2B), a lower wall (2C) and two end walls (2D). The cell incorporates an anti-swelling device, including at least one internal connecting member (4), acting as a tie rod, arranged inside the housing (2) and having two opposite sides connected to the two main walls (2A) of the housing (2), so as to tend to prevent an outward swelling of the main walls (2A). The internal connecting member (4) divides the space inside the housing (2) into two chambers in which two or more wound electrode sheet rolls (JR) are arranged, with the winding axis (5) directed vertically or horizontally. In this way, the swelling of the cell during the operation of a battery pack is significantly reduced, or eliminated altogether, without the use of limiting elements arranged outside the cell and with consequent savings in space, weight and production cost, and with a consequent increase in the energy density of the battery pack.
Absstract of: EP4726796A1
In a method for manufacturing an electrode for a lithium secondary battery, an electrode mixture is prepared by mixing an electrode active material and a prepolymer binder including a polyvinylidene fluoride (PVDF)-based polymer. The electrode mixture is dry-coated onto an electrode current collector to form a preliminary electrode active material layer. The preliminary electrode active material layer is roll-pressed. An electric field is applied to the preliminary electrode active material layer to form an electrode active material layer. The electrode for a lithium secondary battery exhibits improved elasticity and ionic conductivity, thereby improving the cycle life characteristics and electrical properties of the secondary battery.
Absstract of: EP4726868A1
0001 A power storage device includes: a cylinder-shaped casing that houses an electrode assembly inside and has a central axis extending along a first direction; a safety valve arranged so as to overlap with the central axis when viewed along the first direction; a lid fixed at the casing by a crimped section crimping the casing from a first side in the first direction of the casing, wherein the lid includes a ring-shaped partition wall extending toward the first side and provided further to a radial direction outer side than the safety valve and further to a radial direction inner side than the crimped section; and a seal member that seals the crimped section at the radial direction outer side of the partition wall, the seal member being arranged at a second side in the first direction of the casing than an end portion of the casing at the first side.
Absstract of: EP4726062A1
0001 the present invention provides a process for selective recovery of nickel and cobalt from nickel-cobalt-manganese materials, comprising the steps of: i. contacting said material with a sulphuric acid solution at a pH of at most 1 and at elevated temperature in absence of a reducing agent; ii. adding a reducing agent to the reaction mixture obtained in step i. and maintaining the resulting mixture at a pH of at most 1 and at elevated temperature; and iii. separating the manganese rich solid phase from the nickel and cobalt rich liquid phase.
Absstract of: EP4726583A1
0001 A method for mutual authentication between a host controller and a battery subsystem of an electronic device includes, at a battery controller, generating a battery-side authentication challenge, and transmitting the battery-side authentication challenge to the host controller. A host-side authentication challenge is received from the host controller. The host-side authentication challenge is signed with a private encryption key of the battery controller to generate a battery-side message digest. The battery-side message digest and a public encryption key of the battery controller are transmitted to the host controller as a battery-side signature pair. A host-side signature pair is received from the host controller. Based at least in part on the host-side signature pair, a battery-side validation result is output that specifies a battery-side validity state for the host controller.
Absstract of: EP4725843A1
0001 A method of evaluating a battery cell (44) within a battery module (42) of an aircraft hybrid-electric propulsion (HEP) system (20) is provided. The HEP system (20) includes a thermal engine (22), an electric motor (24), and a propulsion unit (28). The HEP system (20) is configured to control at least one of the thermal engine (22) or the electric motor (24) to be in drive communication with propulsion unit (28). The method includes: controlling the HEP system (20) to have the battery module (42) and the battery cell (44) disposed in a rest mode; determining an open-circuit voltage (OCV) of the battery cell (44) after a settling period of time; determining an internal resistance value of the battery cell (44) using the determined OCV; and evaluating the battery cell (44) based on the determined OCV and the determined internal resistance value.
Absstract of: EP4725613A1
0001 A nozzle cleaning apparatus includes a nozzle insertion hole into which a nozzle having a coating liquid discharge hole is inserted, a nozzle accommodation space that accommodates the nozzle inserted into the nozzle insertion hole, an air nozzle that sprays air toward the discharge hole of the nozzle accommodated in the nozzle accommodation space, and an air guide pipe that guides to the air nozzle the air to be sprayed, wherein the air nozzle is configured to spray the air toward the discharge hole from around the nozzle.
Absstract of: EP4725903A1
0001 The present invention relates to a method for producing a porous silicon compound comprising the step of heating silica nanostructures in a reactor filled with an inert gas or a reducing gas mixture to a temperature in the range of from 500 to 900°C in the presence of a reducing agent, wherein the silica nanostructures are core-shell nanoparticles with a particle size of 200 nm or less, a shell with a thickness in the range of 1 to 50 nm comprising silica and a core comprising latex or a polyampholyte.
Absstract of: EP4726882A1
0001 An electrical energy storage module (500) disclosed herein includes first and second electrical energy storage devices (100), and a spacer (200). The spacer (200) includes a base part (290), a first uneven structure (210) that is provided on a first surface (290Rr) of the base part (290) and includes a plurality of first protrusion parts (210p) and a first depression part (210r), and a second uneven structure (220) that is provided on a second surface (290F) of the base part (290) and includes a second protrusion part (220p). The second protrusion part (220p) of the second uneven structure (220) is provided at a position corresponding to the first depression part (210r) of the first uneven structure (210).
Absstract of: EP4726881A1
A battery module includes: a housing; a plurality of battery cells accommodated in the housing and each including a case including a vent hole and a cell terminal protruding from the case; a bus bar electrically connecting the cell terminal of a battery cell of the plurality of battery cells and the cell terminal of another battery cell of the plurality of battery cells; and a bus bar holder including a holder body that supports the bus bar and includes a holder through hole corresponding to the vent hole, and a first protective member including an insulating material and located between the holder body and the case to face the case.
Absstract of: EP4726865A1
A battery arrangement and method for its manufacturing, wherein the battery arrangement comprises a first battery cell having a first casing and a planar stiffening element which is externally surface-mounted to a first stiffening section of the first casing in such a way that the planar stiffening element completely covers the first stiffening section. The planar stiffening element is formed and surface-mounted to the first non-contact section such that it increases the stiffness of the first stiffening section such that when a pressure within the first battery cell increases beyond a predefined first threshold pressure, the first casing breaks open first in a predetermined first non-contact section of the first casing, which is different from the first stiffening section, in order to allow the pressure within the first battery cell to be decreased.
Absstract of: EP4726885A2
0001 The invention relates to a busbar assembly electrically connecting cells of an electrical cell module. The busbar assembly includes a first and second insulator sheets in parallel, and busbar elements laminated between. Each busbar element includes connector portions configured so that adjacent pairs are spaced apart by an intermediary busbar portion. Each connector portion connects in series positive cell terminal of a first cell to a negative cell terminal of a second cell. The intermediary busbar portions connect in parallel both positive cell terminals of first cells, and negative cell terminals of second cells. The busbar element is operably rated for a maximum fault current determined by aggregation of discharge currents of the negative cell terminals. Each intermediary busbar portion has a fusible portion to disconnect connector portions in response to a surge current of 20% to 50% of the maximum fault current. Methods of manufacturing are also disclosed.
Absstract of: EP4726901A1
Provided is a composite electrolyte membrane comprising a porous support including a polymer having a melting point of at least 145°C and a coating layer on at least one side of the support, wherein the coating layer includes a polymer binder and hydrophilic oxide particles. The membrane exhibits high heat resistance and improved ionic conductivity, and is suitable for use in electrochemical devices, such as lithium secondary batteries. Experimental results demonstrate excellent capacity retention, stability, and performance compared to conventional polyolefin-based separators, making the membrane advantageous for high-capacity and high-safety battery applications.
Nº publicación: EP4726869A1 15/04/2026
Applicant:
SK ON CO LTD [KR]
Absstract of: EP4726869A1
0001 A cell case (100) according to an embodiment of the present disclosure may include: a can (200) having a sidewall (220) and an end plate (210) having an internal space (S) accommodating an electrode assembly (400) formed therein; a cap plate (300) disposed opposite the end plate, coupled to the sidewall, and sealing the internal space; and an electrode terminal (500) extending externally by penetrating through a portion of the can, and the electrode terminal may be coupled to the end plate via an insulating resin member (R).
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