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575
results.
Updated on
14/09/2026 [07:52:00]
Results 475 to 500 of 575
Absstract of: EP4803656A1
0001 A rolling roll according to one embodiment of the present disclosure comprises: a roll base material; and a chromium-containing plating layer formed on the roll base material, with the maximum length of the cracks formed on the surface being 5 µm or less. 0002 A rolling roll according to another embodiment comprises a roll base material; a chromium-containing plating layer formed on the roll base material, and a first coating layer formed on the chromium-containing plating layer and comprising titanium nitride. 0003 A method for manufacturing a rolling roll according to another embodiment comprises the steps of: forming a surface irregularity portion on the surface of a roll base material; forming a chromium-containing plating layer on the roll base material using a plating solution containing a chromium-containing raw material and sulfuric acid; and coating a metal nitride layer on the chromium-containing plating layer, wherein in the forming the chromium-containing plating layer, the plating solution further comprises a sulfonic acid-based organic catalyst, or plating is performed in a state where the plating solution is heated to a temperature of 65°C or more to 90°C or less. 0004 A method for manufacturing an electrode according to a further embodiment comprises the steps of: forming an electrode active material layer on a current collector; and rolling the electrode active material layer using the rolling roll.
Absstract of: EP4803483A1
The present disclosure relates to a carbon nanotube, a conductive material dispersion including the carbon nanotube, and a method for manufacturing an electrode for a rechargeable lithium battery using the carbon nanotube. The carbon nanotube has a mesopore diameter distribution in the range of about 1.7 nm to about 300 nm as measured by a Barrett-Joyner-Halenda (BJH) method. A peak top mesopore diameter A in the distribution satisfies 30 nm ≤ A ≤ 40 nm, a full width at half maximum (FWHM) of the distribution is in the range of about 40 nm to about 55 nm; and a specific surface area of about 500 m2/g or less as measured by a Brunauer-Emmett-Teller (BET) method.
Absstract of: EP4804289A2
A battery management system (400) includes a battery pack (300) includes a plurality of battery modules (340), and a plurality of battery-management modules (410) respectively corresponding to the plurality of battery modules (340), wherein each of the plurality of battery modules (340) includes a first set of temperature sensors (11, 13) disposed at a first position (341) of the battery module (340), and a second set of temperature sensors (21, 23) disposed at a second position (343) of the battery module (340) different from the first position (341), and wherein each of the plurality of battery-management modules (410) includes a first analog front end (413a) connected to at least one temperature sensor of the first set of temperature sensors (11, 13), and a second analog front end (413b) connected to at least one temperature sensor of the second set of temperature sensors (21, 23).
Absstract of: EP4803910A1
0001 A computer system (100; 800) for performing a weld check in a traction voltage system (10), the computer system (10) comprising processing circuitry (102; 802) configured to: open a switch (22, 24) connected to the traction battery (20) and an electrical load (40) of the traction voltage system (10); measure a first voltage, V1, between the traction battery (20) and ground reference (30), the first voltage, V1, being measured at a battery side (10-1) of the traction voltage system (10) in relation to the switch (22, 24); measure a second voltage, V2, between the electrical load (40) and ground reference (30), the second voltage, V2, being measured at a load side (10-2) of the traction voltage system (10) in relation to the switch (22, 24); and compare the first and second voltages, V1, V2, to determine the presence of a weld in the switch (22, 24).
Absstract of: EP4803913A1
0001 The invention relates to a method for estimating an SoH of a battery comprising the steps: discharging a Field Battery; measuring electrical battery parameters of the Field Battery during discharging, collecting measuring data of the Field Battery, and determining a Field Battery measuring discharge curve; estimating Healthy Discharge Curve of Field Battery using a neural network trained with measuring data of electrical battery parameters of a Reference Battery collected during discharging a Reference Battery to predict a Healthy Discharge Curve; comparing the estimated Healthy Discharge Curve of the Field Battery with the measuring discharge curve of the Field Battery; if a value of the measuring discharge curve of the Field Battery is smaller than a value of the estimated Healthy Discharge Curve of the Field Battery at a distinct point of time, determining the time difference between the distinct point of time and a predicted point of time, when the value is estimated to be reached according to the prediction of the neural network; estimating an SoH of the Field Battery based on the difference between the distinct point of time and the predicted point of time.
Absstract of: GB2704533A
A method for manufacturing an electrode-separator assembly without a metal current collector, comprising (a) preparing a cathode layer composition comprising a cathode active material, a conductive material and a binder; (b) preparing an anode layer composition comprising an anode active material, a conductive material and a binder; (c) forming a cathode layer by spray coating the cathode layer composition on one surface of a separator; and (d) forming an anode layer by spray coating the anode layer composition on the other surface of the separator. The separator may be a ceramic separator composed of glass fibre or alumina. The cathode active material may be lithium iron phosphate; the anode active material may be lithium titanium oxide; the conductive material may be acetylene black; and the binder may be carboxymethyl cellulose. The spray coating may be performed while the separator is heated. Also disclosed are an electrode-separator assembly formed by the method; a further method for manufacturing a lithium-ion secondary battery comprising impregnating the electrode-separator assembly with an electrolyte by immersion, assembling battery components in a cell housing, and sealing and activating the assembled battery; and a lithium-ion secondary battery formed by the further method. Figure 2
Absstract of: EP4804293A1
0001 A battery apparatus (100) and an electric device are provided. The battery apparatus (100) includes a plurality of pouch cells (10) and a heat dissipation member (20). The plurality of pouch cells (10) are arranged along a first direction, and the heat dissipation member (20) is disposed between two adjacent pouch cells (10).
Absstract of: EP4804314A1
Disclosed are a battery apparatus and an electric device. The battery apparatus includes a case and a battery module, and the case has an accommodating cavity and a discharge cavity. The discharge cavity is provided around an outer peripheral side of the accommodating cavity, and the discharge cavity is in communication with the accommodating cavity via a communication hole. The battery module is disposed within the accommodating cavity, and includes a housing and a plurality of pouch battery cells accommodated in the housing. The housing has a weak part configured to release internal pressure of the pouch battery cells.
Absstract of: EP4804321A1
0001 A battery apparatus, an electric apparatus, and a method for processing a battery apparatus are provided, and pertain to the field of battery technologies. The battery apparatus includes multiple battery cell groups, where the multiple battery cell groups are stacked in a first direction, and each battery cell group includes at least one pouch cell; and each of the battery cell groups located between two ends in the first direction has one terminal in a second direction electrically connected to the battery cell group upstream in the first direction, and the other terminal in the second direction electrically connected to the battery cell group downstream in the first direction; where a flexible bent conductive structure is formed at a connection position of the two interconnected battery cell groups, and the first direction and the second direction are arranged at an angle.
Absstract of: EP4804302A1
0001 A battery cell (100), a battery apparatus (200), and an electric device (300) are provided. The battery cell (100) includes a flexible housing (10) and an electrode assembly (20). The electrode assembly (20) is disposed in the flexible housing (10), where the flexible housing (10) has a side surface (11) opposite a large surface of the electrode assembly (20), and a circumferential surface (12) avoiding the large surface, the circumferential surface (12) and the side surface (11) are connected along circumference of the electrode assembly (20), and at least the circumferential surface (12) is provided with a pressure relief region (121).
Absstract of: WO2026150194A1
The cylindrical battery cell (100) comprises: • a body (105) comprising a bottom (106) and an opening (107) located on the opposite side from the bottom (106); • a cover (108) hermetically fastened to the opening (107); • a winding of electrodes (103) arranged in the body (105) and electrically connected to first and second poles (101, 102) of the cylindrical battery cell (100). The cover (108) comprises at least one safety member (109a, 109b) delimiting a portion of the outer surface of the battery cell (100), said at least one safety member being configured to vary from a closed state to an open state when a predetermined pressure force is exerted on said at least one safety member in the closed state in order to create a degassing orifice.
Absstract of: EP4804294A1
0001 The application provides a battery pack and an electrical device. The battery pack includes a plurality of liquid cooling plates, a plurality of side frames, and a plurality of battery modules. The plurality of the liquid cooling plates are arranged sequentially and spaced apart along a gravitational direction. Each side frame is disposed between adjacent two of the liquid cooling plates, and each side frame has two ends connected to two of the liquid cooling plates. The plurality of the side frames and the plurality of the liquid cooling plates enclose and form a plurality of battery compartments. The plurality of the battery modules are respectively installed in the plurality of the battery compartments, with two ends of each battery module, arranged oppositely along the gravitational direction, thermally connected to the liquid cooling plate.
Absstract of: WO2026132730A1
The invention relates to a spacer (15) intended to be positioned between a cover (6) and a terminal (2, 3) of a prismatic battery cell (1), the spacer (15) comprising a main body (60) and having a lower face (fi60) intended to come into contact with the cover (6), and an upper face (fs60) intended to come into contact with the terminal (2, 3); the spacer (15) comprising, on its lower face (fi60), a raised positioning element (67) in the form of a cross, intended to form-fittingly cooperate with a positioning element (14) delimited by the cover (6), in such a way as to prevent the cover (6) and the spacer (15) from moving in translation and rotation in relation to each other. The invention also relates to an assembly (5), and to a battery cell (1) comprising such a spacer (15).
Absstract of: EP4804263A1
0001 According to exemplary embodiments, an electrode assembly holder is provided. The electrode assembly holder includes: a hollow cylindrical side wall part, wherein the side wall part includes a first portion defining an accommodation space, a second portion defining a discharge space, and a third portion interposed between the first portion and the second portion; a support surrounded by the third portion and spaced apart from the third portion; and bridges connecting the third portion and the support.
Absstract of: EP4804264A1
0001 According to exemplary embodiments, an electrode assembly holder is provided. The electrode assembly holder may include: a sidewall portion having a hollow cylindrical shape, wherein the sidewall portion includes a first portion defining an accommodating space, a second portion defining a discharge space, and a third portion interposed between the first portion and the second portion; and a plurality of bridges connecting the third portion of the sidewall portion and intersecting each other at an intersection portion.
Absstract of: EP4804291A1
A battery housing (100) comprising: a plurality of battery cells (102), each battery cell having a vent (104) positioned to face a first side (106) of the battery housing for releasing exhaust gas during a thermal runaway event; a first compartment (108) disposed adjacent to the vents of the battery cells, the first compartment being air-filled; a second compartment (110) adjacent to the first compartment, on a side of the first compartment opposite the side facing the vents of the battery cells, and in fluid communication with the first compartment via breakable openings (112) located between the first compartment and the second compartment, wherein the second compartment comprises a phase change material (114) configured to be activated when high-velocity particles and/or high-pressure gas ejected from the battery cells break through the breakable openings, and to absorb heat and trap particles released during a thermal runaway event.
Absstract of: EP4804315A1
0001 A battery housing (100) comprising: a plurality of battery cells (102), each battery cell having a vent (202) positioned to face a first side (104) of the battery housing for releasing exhaust gas during a thermal runaway event; and a venting channel (106) arranged at the first side of the battery housing and configured to guide exhaust gas from the battery cells toward a venting outlet (108) of the battery housing; wherein the venting channel comprises a first channel portion (204) arranged to directly receive exhaust gas from the vents of the battery cells, and a second channel portion (206) arranged to transport exhaust gas to the venting outlet, the second channel portion being fluidly separated from the first channel portion along part of its length; and wherein a fluid connection (208) between the first and second channel portions is formed at an edge portion (110) of the first side of the battery housing.
Absstract of: EP4804297A1
There is described a photoelectrode and a rechargeable lithium-ion photobattery comprising the photoelectrode. The photoelectrode comprises a transition metal oxide component and a discrete conductive carbon component. The transition metal oxide component comprises a single transition metal oxide material having an average pore size of at least 5 nm. The discrete conductive carbon component has a thickness of 50 µm or less. There is also disclosed a method of preparing the photoelectrode and the use of said photoelectrode in a photobattery system.
Absstract of: EP4803346A1
An electric battery unit (1), comprising an array of battery cells (2) arranged side by side within a housing (4) of the battery unit, wherein each cell (2) comprises an external housing (6) provided with a vent valve (17) configured to allow the exit from the housing of gases formed inside the cell when said gases exceed a predetermined pressure and/or a predetermined temperature, following the cell entering a thermal runaway condition, and wherein said housing (4) of the battery unit comprises a venting device, configured to rupture or deform so as to leave free a vent opening (18) provided in a wall (20, 26) of the housing (4) in case the pressure and/or temperature inside the housing (4) exceed predetermined threshold values. The battery unit (1) comprises a shield (34, 47, 62) disposed within said housing (4) and extending facing said vent opening (18) of the housing (4) in an intermediate position between the vent opening (18) and the cell (2) of said array of battery cells closest to said vent opening (18), in such a way that, when said venting device ruptures or deforms, said shield (34, 47, 62) defines, together with the walls (20, 26) of said housing (4), a passage (44, 54) for the gases, coming from said vent valves (17) and directed towards said vent opening (18) of the housing (4), spaced apart from the battery cell (2) closest to the vent opening (18).
Absstract of: EP4804292A1
The present disclosure refers to a battery module with a cooling system including plastic cooling plates. This allows for an efficient cooling and extinguishing in case of a thermal run-away. Further, the present disclosure relates to a vehicle, in which at least one battery module with a cooling system including plastic cooling plates is employed. Moreover, the present disclosure is related to a method for controlling a battery module with a cooling system including plastic cooling plates.
Absstract of: EP4804243A2
A rechargeable battery including a positive substrate having a plurality of first protrusions, a negative substrate facing the positive substrate and having a plurality of second protrusions, and a plurality of functional particles between the plurality of first protrusions and the plurality of second protrusions, wherein each of the plurality of functional particles includes a first aggregate having a positive active material, a second aggregate having a negative active material, and a separating aggregate separating the first aggregate and the second aggregate and surrounding the first aggregate and the second aggregate, and the plurality of first protrusions penetrate the separating aggregate and contact the first aggregate and the plurality of second protrusions penetrate the separating aggregate and contact the second aggregate.
Absstract of: EP4804325A1
0001 In accordance with a first aspect of the present disclosure, a secure element for use in a battery system is provided, the secure element comprising: a seal interface configured to couple the secure element to a seal included in the battery system, wherein the seal is configured to physically protect a battery unit of the battery system; a storage unit configured to store a reference value indicative of a closed state of the seal; a monitoring unit configured to monitor an electrical characteristic of the seal and to compare said electrical characteristic of the seal with the reference value. In accordance with a second aspect of the present disclosure, a corresponding method of operating a secure element is conceived.
Absstract of: EP4803557A1
Provided are an insulating composition for a rechargeable lithium battery, an electrode manufactured using the insulating composition, and a rechargeable lithium battery The insulating composition for the rechargeable lithium battery includes a non-aqueous binder, inorganic particles, and a solvent. The non-aqueous binder includes a copolymer of a vinylidene fluoride-based monomer and at least one comonomer different from the vinylidene fluoride-based monomer.
Absstract of: EP4804323A1
0001 Aspects herein relate to a secondary battery (100). The secondary battery may include an electrode assembly (140) configured such that a first electrode plate (142), a second electrode plate (144), and a separator (146) are wound together, a case (110) configured to receive the electrode assembly (140) therein, a cap assembly (130) configured to seal the case (110), and a composite current collecting plate (150) located between the electrode assembly (140) and the cap assembly (130), the composite current collecting plate (150) having a plurality of lead tabs (154, 156) integrally formed thereon and being electrically connected to the first electrode plate (142) and to the cap assembly (130), the plurality of lead tabs (154, 156) being connected to the cap assembly (130).
Nº publicación: EP4804295A1 09/09/2026
Applicant:
GEN ELECTRIC [US]
General Electric Company
Absstract of: EP4804295A1
0001 A hybrid propulsion system includes an engine which includes a metal-air battery pack, a combustion chamber, and a propulsion power bus. The propulsion power bus is configured to receive energy from the metal-air battery pack and the combustion chamber, regulate voltage of the engine, manage an electric load of the engine, monitor electrical system faults or abnormalities, manage the heat generated within the engine, and distribute a stable and reliable power supply to propulsion-related components, such as the propeller or turbine.
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