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1139
results.
Updated on
08/09/2025 [07:10:00]
Results 250 to 275 of 1139
Absstract of: MX2025004615A
The present invention relates to a separator (1) able to separate two cells (2) of a battery (3), for example a battery of an electric or hybrid-electric vehicle, said separator (1) comprising at least one insulating layer comprising a composite material (4), said composite material (4) comprising a binder mixed with aerogel particles (5), the volume content of said aerogel particles (5) in said composite material (4) being greater than 20% and the binder being a mineral binder. The present invention also relates to a battery comprising a separator according to the invention, and to a method for manufacturing the separator according to the invention.
Absstract of: CN120129661A
The present invention relates to a positive electrode active material for a lithium ion rechargeable battery, where the positive electrode active material comprises Li and transition metals such as Ni, optionally Co, optionally Mn and Nb, where the positive electrode active material is coated with B, and where the specific surface area of the positive electrode active material is higher than or equal to 0.50 m2/g and lower than or equal to 1.50 m2/g.
Absstract of: EP4611103A1
The present application provides a secondary battery and an electric device. The secondary battery comprises a battery case provided with an accommodating cavity, a battery cell assembly located in the accommodating cavity, and an electrolyte. The electrolyte comprises a chain carboxylic acid ester compound, wherein based on the total mass of the electrolyte, the mass content W of the chain carboxylic acid ester compound satisfies: 0.03 ≤ W/R ≤ 7. The secondary battery has excellent fast charging performance and long service life.
Absstract of: EP4611102A1
The present application provides a secondary battery and an electrical apparatus. The secondary battery comprises a battery case having an accommodating cavity, a cell assembly disposed in the accommodating cavity, and an electrolyte containing a first additive, the first additive comprising a sulphate compound; wherein a ratio W/R of a mass percentage W of the sulphate compound to a residual space R is within a range of 0.03% to 40% based on the total mass of the electrolyte, which enables the secondary battery to achieve a balance between service life and energy density.
Absstract of: EP4611115A1
The present invention relates to a method for manufacturing a lithium secondary battery, which includes a first step of preparing a battery case, a second step of disposing an electrode assembly in the battery case and injecting an electrolyte such that electrolyte mass per unit capacity is a (g/Ah) to assemble a battery cell, a third step of activating the battery cell, and a fourth step of precharging/discharging the activated battery cell b times, wherein Equation 1 below is satisfied, 15≤486.77−373.09×e−0.006b×a0.29≤30 wherein in Equation 1 above, a is an integer of 2.0 to 3.0 and b is an integer of 0 to 3.
Absstract of: EP4609984A1
A jig according to an embodiment of the present disclosure, which is a jig configured to support an electrode that is transferred along a first direction and includes a coated portion coated with an electrode active material and an uncoated portion not coated with the electrode active material, includes a first support unit configured to support an area corresponding to the uncoated portion in the electrode and including a laser receiving portion formed at a position corresponding to an area irradiated with a laser for cutting the uncoated portion; and a second support unit including at least one support roller configured to support an area corresponding to the coated portion in the electrode.
Absstract of: EP4611077A1
Provided is a negative electrode-free battery which includes: a positive electrode; a negative electrode facing the positive electrode; a separator interposed between the positive electrode and the negative electrode; and an electrolyte, wherein the positive electrode includes a positive electrode active material, the positive electrode active material includes a lithium transition metal oxide, the negative electrode includes a negative electrode current collector for a negative electrode-free battery, the negative electrode current collector for a negative electrode-free battery includes a metal current collecting substrate, the metal current collecting substrate includes a space portion, at least a portion of which is exposed to the outside, and a specific relational formula is satisfied.
Absstract of: WO2024089193A1
The invention relates to a method (100) for synthesizing at least one crystalline layer of manganese oxides that can contain zinc, of formula ZnxMnyOz, where x is greater than or equal to 0, y is greater than 0, and z is greater than 0, the method being implemented in a chamber of a low-pressure plasma reactor, kept between 10 Pa and 105 Pa, the method comprising forming a plasma discharge (110) from a plasma-generating gas; adding (120), in the form of a nebulizate, a predetermined amount of a manganese precursor; adding (130) a reactive gas so as to create oxygen vacancy defects in the layer of manganese oxides, and/or so as to maintain a controlled redox environment; synthesizing and depositing (140), on a substrate, the at least one crystalline layer of manganese oxides that can contain zinc, these operations being carried out at a substrate temperature of 400°C or less, advantageously 200°C or less.
Absstract of: WO2024089573A1
Described is an apparatus (1) for manufacturing slabs (2) from powdery raw material. The powdery raw material is cathode active material for rechargeable batteries. The apparatus (1) comprises: a lower die (3), defining a moulding cavity (4); an upper die (6) provided with an upper punch (601). The upper die (6) and the lower die (3) are movable relative to one another along a vertical direction (V) between an open position and a pressing position. The upper die (6) and the lower die (3) are also displaceable to a pre-pressing position where the moulding cavity (4) is closed by the upper punch (601) but is in air communication with a surrounding air volume. The apparatus (1) also comprises a vacuum system for sucking air from the moulding cavity (4) when in the pre-pressing position and to keep a negative pressure inside the moulding cavity when in the pressing position.
Absstract of: CN120092326A
The invention relates to a method (110) for producing a cathode (112), to a cathode (112) produced by such a method and to a battery comprising such a cathode (112). The method (110) comprises the steps of: a) supplying a current collector (114) wherein at least a surface (116) of the current collector has an electrically conductive material (118); b) coating a surface (116) of the current collector (114) with a carbon-containing layer (120), and c) applying a cathode active material (124) to the carbon-containing layer (120), the carbon-containing layer (120) comprising more than 60 wt% and less than 80 wt% of carbon and at least one polymer as binder, and at least step b) being carried out at a temperature of at least 30 DEG C to at most 70 DEG C.
Absstract of: EP4611146A1
A reinforcing bracket (120) for a battery, a battery (200), and a power consuming apparatus (1000) are provided. The battery includes a plurality of battery cells (10), the reinforcing bracket includes a connecting bracket (121) and a plurality of partition members (122), the connecting bracket includes a first reinforcing plate (1211), a plurality of avoidance holes (121a) that are spaced apart along a first direction are provided on the first reinforcing plate, the plurality of partition members are spaced apart along the first direction on the connecting bracket, and a placement space (124) is defined between the adjacent partition members and the connecting bracket.
Absstract of: EP4611119A1
A battery (200) and a power consuming apparatus (1000) are disclosed. The battery includes a box body (30), and multiple battery cells (10) and a heat conducting member (40) arranged in the box body. Each battery cell is provided with multiple side walls (110). The multiple side walls include a first side wall (111) and a second side wall (112) connected to each other. The first side wall is a side wall with the largest area of the battery cell. The second side walls of at least part of the battery cells are connected to the box body in a heat conducting manner through the heat conducting member.
Absstract of: EP4611131A1
An explosion prevention valve, a cover plate assembly, a battery core, a battery pack, and an electrical system are provided. The explosion prevention valve includes a main body, an explosion prevention piece, and a temperature-sensitive film. The main body is provided with a pressure relief hole extending through a thickness direction thereof. The explosion prevention piece is connected to the main body. The explosion prevention piece is arranged to cover the pressure relief hole. The temperature-sensitive film is connected to the main body. The temperature-sensitive film is arranged to cover the pressure relief hole. The temperature-sensitive film is made of plastic, and has a critical breaking pressure value which is inversely proportional to a temperature of the explosion prevention valve. In the technical solutions of the present disclosure, the temperature-sensitive film is arranged in the explosion prevention valve. When the battery core is in a normal operating condition, the temperature-sensitive film and the explosion prevention piece jointly cover the pressure relief hole of the main body, to increase an opening pressure of the pressure relief hole, so as to reduce a risk of accidentally opening the pressure relief hole. When the battery core is out of control, a high temperature generated after the battery core is out of control quickly softens the temperature-sensitive film, to reduce the critical breaking pressure value of the temperature-sensitive film, so as t
Absstract of: EP4611087A1
The present disclosure relates to a battery manufacturing apparatus for manufacturing a battery assembly which includes a plurality of battery cells, each including a tab part electrically connected to an outside and protruding outward, and an accommodating bottom surface forming a bottom surface of an accommodating space in which the plurality of battery cells are accommodated, including a sensor configured to sense a profile regarding a degree of protrusion of a coating surface of one side of the battery cell facing the accommodating bottom surface, a discharger configured to discharge an adhesive material to the coating surface of at least one battery cell of the plurality of battery cells, and a controller configured to control the discharger or the sensor to adjust at least one of a position and a moving speed of the discharger based on the profile, and a battery manufacturing method using the battery manufacturing apparatus.
Absstract of: EP4611148A1
A pressure relief component, a battery cell, a battery, and an electrical apparatus are provided and pertain to the field of battery technologies. The pressure relief component includes a pressure relief portion, a reinforcing portion, and a first weakened portion. The pressure relief portion is configured to rupture when the battery cell relieves pressure, so as to release the internal pressure of the battery cell. The reinforcing portion is connected to the pressure relief portion, and the reinforcing portion is arranged around the pressure relief portion. The first weakened portion is connected to the pressure relief portion via the reinforcing portion, stiffness of the first weakened portion being less than stiffness of the reinforcing portion. This structure of the pressure relief component makes the first weakened portion more prone to deformation, allowing the first weakened portion to absorb the deformation energy of the battery cell when the battery cell is subjected to internal and external impacts and deforms, enabling the first weakened portion to provide a certain buffering effect, thereby reducing phenomena such as deformation or damage to the pressure relief portion, and improving the operational stability and service life of the pressure relief component.
Absstract of: EP4611076A1
The present disclosure relates to a composition for forming an electrode protective layer for a lithium secondary battery, which not only suppresses heat generation or ignition caused by external impacts, etc., and thus has excellent stability, but also makes it possible to provide electrodes and batteries having excellent conductivity and rate characteristics, and to an electrode for a lithium secondary battery and a lithium secondary battery comprising the same.
Absstract of: EP4611166A1
The present invention relates to a pouch cell in which a gas inside a pouch is discharged to the outside of the pouch to delay or prevent an occurrence of a venting phenomenon of the pouch by the internal gas occurring in a charging or discharging process of the pouch cell.The pouch cell includes an electrode assembly, a pouch configured to accommodate the electrode assembly, an electrode lead electrically connected to the electrode assembly to protrude to the outside of the pouch, a pair of lead films including a central portion, which covers a portion of the electrode lead on each of both surfaces of the electrode lead, and an outer portion disposed on each of both sides of the central portion so that the pouch and the electrode lead are insulated from each other, and a passage member disposed between the pair of lead films and attached to the outer portion, wherein, when a pressure inside the pouch increases above a set pressure, a gas moving path is provided between the passage member and each of the lead films.
Absstract of: EP4611127A1
A battery pack may include a plurality of battery cells stacked in a first direction in a vertical coordinate system defined by the first direction, a second direction, and a third direction that are perpendicular to one another, and a pack case configured to accommodate the plurality of battery cells at an inner space therein. Additionally, the pack case may include an upper case and a lower case. Further, the lower case may include the inner space for accommodating the plurality of battery cells, and in which the upper case may include a first heat sink extending in the first direction.
Absstract of: EP4611126A1
A battery pack may include a plurality of battery cells stacked in a first direction in a vertical coordinate system defined by the first direction, a second direction, and a third direction that are perpendicular to one another, and a pack case configured to accommodate the plurality of battery cells at an inner space therein. In addition, the pack case may include a pair of first outer walls extending in the first direction, a pair of second outer walls extending in the second direction, the pair of first outer walls and the pair of second outer walls defining the inner space of the pack case, a longitudinal beam provided between the pair of first outer walls and extending parallel to the pair of first outer walls, and a bottom part provided below the pair of first outer walls, the pair of second outer walls, and the longitudinal beam.
Absstract of: EP4611152A1
An energy storage system according to an embodiment of the present invention comprises: a plurality of battery modules arranged in a stacked manner; and a battery rack comprising a pair of thermal runaway blocking kits which cover the plurality of battery modules on both sides thereof, wherein the pair of thermal runaway blocking kits may comprise a body portion on which the plurality of battery modules are mounted and which comprise an empty space in which gas discharged from one or more of the battery modules is confined, and a side frame coupled to the body portion so as to cover the empty space.
Absstract of: EP4611109A1
A battery cell, a battery, and a power consuming device are provided. A battery cell 1 includes a shell 100, an electrode assembly 200, a first processor 300, a detection sensor 400, and a second processor 500. The electrode assembly 200 is arranged inside the shell 100. The first processor 300 is arranged inside the shell 100. The detection sensor 400 is arranged inside the shell 100 and is electrically connected to the first processor 300 via first communication lines 410. The second processor 500 is arranged outside the shell 100 and is electrically connected to the first processor 300 via second communication lines 510. A quantity of the second communication lines 510 is less than a quantity of the first communication lines 410. In the foregoing manner, a quantity of communication lines running through the shell can be reduced, thereby improving reliability and stability of the battery cell.
Absstract of: EP4611138A1
The present disclosure provides a battery box beam, a battery box (1), and a battery module. The battery box beam includes a body wall (7); a first beam wall (8) connected to one end of the body wall (7), and the first beam wall (8) compries a first pressure bearing section (81) disposed opposite to the body wall (7); and a second beam wall (9) connected to another end of the body wall (7), the second beam wall (9) includes a second pressure bearing section (91), and the second pressure bearing section (91) is disposed opposite to the body wall (7) and extends towards and partially overlaps with the first pressure bearing section (81), thereby meeting the requirements of light-weight and strength of the battery module.
Absstract of: EP4611159A1
A battery pack may include a plurality of battery cells stacked in a first direction, a pack case with an inner space to accommodate the plurality of battery cells, and a wiring structure provided in the pack case. Further, each of at least two adjacent battery cells among the plurality of battery cells may include an electrode assembly, a cover surrounding the electrode assembly, and a cell lead protruding from a side of the cover in the second direction. Additionally, the cell lead may include a first part of the cell lead and a second part of the cell lead, the first part being located closer to the cover than the second part. Further, the pack case may include a pair of first outer walls extending in the first direction, and a pair of second outer walls extending in the second direction.
Absstract of: EP4609932A1
Methods of refining metals and methods of manufacturing positive electrode active materials are disclosed. The methods of refining metals comprise preparing an acid solution that includes an impurity and metal, adding a filtration aid to the acid solution to make a precipitation reaction solution, and filtering the precipitation reaction solution to separate a liquid including the metal and a solid including the impurity and the filtration aid. The filtration aid includes one or more of silicon dioxide (SiO<sub>2</sub>), aluminium oxide (Al<sub>2</sub>O<sub>3</sub>), calcium hydroxide (Ca(OH)<sub>2</sub>).
Nº publicación: EP4611134A1 03/09/2025
Applicant:
SK ON CO LTD [KR]
SK On Co., Ltd
Absstract of: EP4611134A1
The present disclosure relates to a battery cell including a case including an opening formed in one surface and an opposing surface facing the opening, and accommodating an electrode assembly through the opening, a cap plate coupled to the case to close the opening, and a vent portion having a shape of a groove on the opposing surface, wherein a ten-point average roughness of a surface of the vent portion is greater than a ten-point average roughness of an area adjacent to the vent portion.
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