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1238
results.
Updated on
22/07/2025 [07:13:00]
Results 250 to 275 of 1238
Absstract of: US2025233220A1
Various embodiments of the teachings herein include a device for detecting a defect of an arrangement including a battery housing and a battery cell. An example includes: a first sensor for a gas component within the battery housing; a second gas for the at least one gas component outside the battery housing; and a control apparatus receiving the signals. The control apparatus identifies a defect in the arrangement if the presence and/or a content of the gas component within the battery housing exceeds a predetermined first content threshold value and the absence and/or a content of the gas component outside the battery housing falls below a predetermined second content threshold value.
Absstract of: US2025233428A1
A battery management device, including a first pack terminal and a second pack terminal, a first battery terminal and a second battery terminal to which a battery including a plurality of battery cells is coupled, a charge control switch and a discharge control switch coupled in series between the first pack terminal and the first battery terminal, a current sensor coupled in series with the battery between the first pack terminal and the second pack terminal, and a battery controller controlling the discharge control switch, based on a battery current detected through the current sensor, wherein the battery controller repeats a process, the process including, detecting a generation of an overdischarge current, and when the overdischarge current is detected, temporarily turning off the discharge control switch for a preset delay time before turning the discharge control switch back on again.
Absstract of: US2025233240A1
Provided are a housing assembly for a battery cell, a battery cell, a battery, and an electrical device, which belong to the field of battery cell technologies. The housing assembly for the battery cell includes a housing body and housing cover. The housing body has an opening. The housing cover is arranged at the opening. Each of the housing cover and the housing body has a rough region on surfaces of the housing cover and the housing body fitting each other.
Absstract of: US2025233274A1
Embodiments of the application provide a battery cell, a battery and an electric apparatus. The battery cell comprises a first case, a first electrode assembly, a second case, a second electrode assembly, and an end cover assembly. The first case is provided with a first opening. The first electrode assembly is accommodated within the first case. The second case is provided with a second opening opposite the first opening. The second electrode assembly is accommodated within the second case. The end cover assembly covers the first opening and the second opening, the end cover assembly includes a connecting assembly, and the connecting assembly is configured to electrically connect the first electrode assembly and the second electrode assembly. The first case and the second case, which are sequentially arranged, can increase the overall size of the battery cell, thereby increasing the space utilization of the battery cell in the battery.
Absstract of: US2025233229A1
A battery pack includes battery cells arranged in an array to form a battery module layer. Multiple layers are vertically stacked with thermal management devices, such as active heat exchangers in the form of battery cold plates, above and below each layer to form a multi-layer battery stack that may be held in compression. The battery cold plates include liquid heat exchange medium passageways, the characteristics of which influence the heating and cooling capabilities of the cold plates. The battery cold plates, including at least arrangement and features of the passageways across the battery cold plate, are optimized to achieve desirable pressure drop and temperature distribution across the cold plates, among other benefits.
Absstract of: US2025233294A1
An electrode assembly, includes: a main body including a first electrode and a second electrode stacked and wound with a separator in between, with a first substrate positioned at an outermost part of the main body; and a finishing tape attached to the main body to cover an end of the first substrate, wherein a circumferential length of the finishing tape is smaller than a circumference of the main body, and the first substrate is positioned in two layers over an entire exposed region of the main body which is not covered with the finishing tape.
Absstract of: US2025233276A1
In some implementations, a battery module may include a battery stack comprising a plurality of battery cells, one or more module interconnect bus bars, and a printed circuit board (PCB) disposed on the battery stack and defining a plurality of openings. The PCB may be configured as a carrier for the one or more module interconnect bus bars. The plurality of openings may be arranged such that each of the plurality of openings aligns with a terminal of each of the plurality of battery cells. The one or more module interconnect bus bars may be attached to the PCB in alignment with the plurality of openings and electrically connected to the plurality of battery cells of the battery stack.
Absstract of: US2025233224A1
A battery module including a plurality of battery cells configured for storing and supplying electrical power, a cell holder configured for supporting the battery cells, a preformed insert including a potting material shaped to define a plurality of coolant channels for the battery cells, and a flow control system operable for controlling a coolant flow through the coolant channels.
Absstract of: US2025233234A1
An energy storage device for a motor vehicle, including an energy storage housing and at least one battery cell accommodated therein. At least one cooling device is arranged adjacent to the battery cell or to at least one of the battery cells in such a way that this battery cell can be cooled by a cooling fluid guided in at least one cooling fluid guide portion of the cooling device. At least one portion of the cooling device is plastically or elastically deformable, so that an expansion of the adjacent battery cell or the adjacent battery cells due to the charging cycle and/or aging causes a deformation of the cooling device in such a way that the cross-section of the cooling fluid guide portion is reduced at least in portions.
Absstract of: US2025233230A1
A battery assembly may include a cooling sleeve having a first cooling plate with a first fluid channel defined in the first cooling plate, a second cooling plate with a second fluid channel defined in the second cooling plate, and a chamber defined between the first cooling plate and the second cooling plate. The battery assembly may include a battery cell disposed in the chamber between the first cooling plate and the second cooling plate.
Absstract of: WO2025148414A1
A positive electrode piece, comprising a current collector and a positive electrode active layer, the positive electrode active layer being arranged on at least one surface of the current collector; the positive electrode active layer comprises a first active layer directly coated on the current collector and a second active layer coated on the surface of the side of the first active layer away from the current collector; the first active layer comprises first lithium iron phosphate salt particles and/or first manganese iron phosphate salt particles, the second active layer comprises second lithium iron phosphate salt particles, the primary average particle diameter of the first lithium iron phosphate salt particles and/or the first manganese iron phosphate salt particles is 150 nm to 480 nm, and the primary average particle diameter of the second lithium iron phosphate particles is 500-3000 nm.
Absstract of: WO2025148536A1
Provided in the present application are a positive electrode material and a preparation method therefor, a positive electrode sheet, a battery and an electric device. The positive electrode material of the present application comprises an inner core and a coating layer that coats the inner core, wherein the inner core comprises lithium iron phosphate or M-element-containing lithium iron phosphate, and the coating layer comprises carbon and an optional M element. The positive electrode material satisfies: the powder resistivity at 8 MPa is less than or equal to 20 Ω.cm; and the BET specific surface area at a liquid nitrogen temperature is 6-15.2 m2/g. The positive electrode material of the present application has few side reactions, and improves the cycle performance of a battery.
Absstract of: WO2025148444A1
A lower plastic plate, a top cover assembly, and a battery. The lower plastic plate comprises a plastic plate body (1) and a connecting unit. The plastic plate body (1) comprises a first plastic sub-plate (11) and a second plastic sub-plate (12) which are separated. The first plastic sub-plate (11) is provided with a first pole hole (111), and the second plastic sub-plate (12) is provided with a second pole hole (121). The connecting unit comprises a connecting plate (21) and a snap-fitting member (22). The connecting plate (21) is connected to one of the first plastic sub-plate (11) and the second plastic sub-plate (12), and the snap-fitting member (22) is connected to the other one of the first plastic sub-plate (11) and the second plastic sub-plate (12). The connecting plate (21) is provided with a limiting hole (211), and the snap-fitting member (22) is slidably snap-fitted into the limiting hole (211) in the length direction of the plastic plate body (1).
Absstract of: WO2025148417A1
A positive electrode active material, the positive electrode active material comprises lithium iron phosphate particles and lithium nickel cobalt manganate particles, wherein the primary average particle size of the lithium iron phosphate particles is 500-3000 nm, the specific surface area BET of the lithium iron phosphate particles is 3m 2/g-8m 2/g, and the specific surface area BET of the lithium nickel cobalt manganate particles is 0.4m 2/g-2.0m 2/g. The positive electrode active material has good processability, and also has good gram capacity.
Absstract of: US2025233236A1
The battery includes a plurality of electrode materials, in which the electrode material includes a first pouch, a first collector, a positive electrode, a separator, a negative electrode, a second collector, and a second pouch in this order, at least one of adjacent electrode materials has at least one of a first opening portion between the first pouch and the first collector or a second opening portion between the second pouch and the second collector, at least the other of the adjacent electrode materials has at least one of a first insertion part by the first collector or a second insertion part by the second collector, and the adjacent electrode materials are joined by at least one of insertion of the first insertion part into the first opening portion or insertion of the second insertion part into the second opening portion; and an electrode material applied to the battery.
Absstract of: US2025233223A1
Embodiments described herein relate to methods of recycling battery waste. In some aspects, a method can include applying a first heat treatment at a temperature of between about 100° C. and about 700° C. to the battery waste, the first heat treatment decomposing at least about 80 wt % of the binder, separating the electrode material from the current collector, and applying a second heat treatment at a temperature between about 400° C. and about 1,200° C. to the electrode material to produce a regenerated electrode material, the second heat treatment decomposing at least 90 wt % of binder remaining in the electrode material to produce a regenerated electrode material. In some embodiments, the method can include applying a surface treatment to the electrode material to remove surface coatings and/or surface impurities from the electrode material. In some embodiments, the surface treatment can include applying a solvent to the electrode material.
Absstract of: US2025233284A1
An energy storage cell includes an electrode-separator assembly with the sequence first electrode/separator/second electrode. The first electrode is ribbon-shaped and includes a first ribbon-shaped current collector with a first longitudinal edge, a second longitudinal edge parallel thereto, a main region loaded with a layer of first electrode material, and a free edge strip extending along the first longitudinal edge and being not loaded with the first electrode material. The second electrode is ribbon-shaped and includes a second ribbon-shaped current collector with a first longitudinal edge and a second longitudinal edge parallel thereto. The second ribbon-shaped current collector is loaded with a layer of second electrode material and at least one metallic arrester strip is fixed to the second ribbon-shaped current collector. The at least one metallic arrester strip fixed to the second current collector protrudes from the first terminal end face of the electrode-separator assembly.
Absstract of: US2025233280A1
A rechargeable battery module is provided. The rechargeable battery module includes a busbar holder for covering battery cells, a busbar in the busbar holder for electrically connecting the battery cells, a flexible printed circuit in the busbar holder for transmitting a detection signal of a temperature or a voltage of one of the battery cells, a battery management system for receiving a transmission signal from a wireless communicator connected to the flexible printed circuit, and a printed circuit board on the flexible printed circuit for accommodating a circuit element on the flexible printed circuit for the wireless communicator.
Absstract of: US2025233282A1
A battery module includes a cell stack including a plurality of battery cells, a plurality of busbars electrically connected to the plurality of battery cells, a support frame supporting the plurality of bus bars, and a circuit board electrically connected to the plurality of busbars. The circuit board includes a plurality of extension portions extending in different directions, and at least one overlapping portion in which at least two extension portions, among the plurality of extension portions, overlap.
Absstract of: US2025233216A1
A method of protecting a precharge resistor provided in a battery pack, including attempting a first attempt to charge a precharge capacitor, the precharge capacitor being electrically connected to two ends of a battery module provided in the battery pack and charged by receiving a precharge current from the battery module, adding predetermined penalty points to a summed penalty point total based on a result of the first attempt to charge the precharge capacitor determining whether the precharge resistor is in a limited state based on the summed penalty point total, and preventing a second attempt to charge the precharge capacitor for a predetermined time if the precharge resistor is in the limited state.
Absstract of: US2025233228A1
Cases can couple to a battery device to be held within the case. The case can include features, such as a clip with a heat sink, for dissipating heat away from the battery device while the case is within a pocket of a user. Such features can promote heat dissipation for the battery device even while the battery device is within an enclosed environment. The clip can serve as a mechanical engagement feature as well as a thermal dissipation feature. The clip can conduct heat away from the battery device and into an external environment, providing improved heat dissipation for the battery device and reducing the need for power throttling.
Absstract of: US2025233218A1
A pouch-shaped battery cell includes a pouch case constituted by a lower case and an upper case, an electrode assembly located in the pouch case, and an auxiliary terminal. The electrode assembly includes a positive electrode, a negative electrode, and a separator, and has a pair of electrode tabs formed at one side or opposite sides thereof, and a pair of electrode leads connected to the pair of electrode tabs. The pair of electrode tabs protrude outwards from the pouch case, wherein a sealed portion is formed at edges of the lower case and the upper case that face each other by thermal fusion. The auxiliary terminal is in contact with the first metal layer or the second metal layer so as to enclose a side end of the sealed portion. The present disclosure also provides for a battery module including the same.
Absstract of: US2025233226A1
Provided is a battery heating device. The battery heating device includes a lower plate, a support module arranged on the lower plate and configured to allow each of a plurality of cylindrical batteries to be inserted thereinto, and a heating element arranged between the lower plate and the support module and configured to heat the plurality of cylindrical batteries. The support module may include a first module including a plurality of accommodation spaces in which the plurality of cylindrical batteries are respectively accommodated and a plurality of openings provided to allow the plurality of cylindrical batteries to be inserted thereinto. The support module may include a second module arranged on the first module and including a plurality of penetration portions respectively corresponding to the plurality of openings to adjust positions at which the plurality of cylindrical batteries are respectively accommodated in the plurality of accommodation spaces.
Absstract of: US2025233197A1
A metal battery or metal ion battery comprising an anode, a cathode and a compound of formula (I) disposed between the anode and the cathode: wherein X is Al or B; Ar1 in each occurrence is independently an unsubstituted or substituted arylene or heteroarylene group; Y is a divalent group; and M+ is a cation.
Nº publicación: WO2025150842A1 17/07/2025
Applicant:
LG CHEM LTD [KR]
\uC8FC\uC2DD\uD68C\uC0AC \uC5D8\uC9C0\uD654\uD559
Absstract of: WO2025150842A1
The present invention relates to a positive electrode material, and relates to a positive electrode material, a positive electrode comprising same, and a lithium secondary battery, the positive electrode material comprising: a first positive electrode active material having an olivine structure; and a second positive electrode active material which is a lithium nickel-based oxide having a layered structure with an average particle diameter (D50) larger than the first positive electrode active material, wherein the first positive electrode active material has an average particle diameter (D50) of 0.5-10 ㎛, contains 2-3.5 wt% of carbon (C), and has an average crystal size of 100 nm or more and less than 160 nm.
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