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1441
results.
Updated on
07/08/2025 [09:25:00]
Results 1175 to 1200 of 1441
Absstract of: US2025239750A1
An electrode and an electrochemical apparatus are provided. The electrode includes a current collector, an active layer, and an insulation layer. The active layer is coated on at least one surface of the current collector. The insulation layer is coated on the at least one surface of the current collector and connected to a periphery of the active layer. The insulation layer includes a water-based binder and an inorganic material, and a peel strength of the insulation layer after being immersed in water for 1 minute at a preset temperature is less than or equal to 7N/m.
Absstract of: US2025239590A1
A main object of the present disclosure is to provide an electrode layer of which volume change amount is suppressed. The present disclosure achieves the object by providing an electrode layer including a composite particle, wherein the composite particle includes: a plurality of active material containing a Si element or a Sn element; and a binder; and when R designates an average particle size of the composite particle in a thickness direction of the electrode layer, and d designates a thickness of the electrode layer, a rate of the R with respect to the d, which is R/d, is 0.20 or less.
Absstract of: US2025239741A1
Provided is a battery module and energy storage system including the same. The battery module includes a plurality of battery cells, a plurality of busbars electrically connecting the plurality of battery cells, a busbar holder positioned above the plurality of battery cells and supporting the plurality of busbars, a plurality of gas flow detection sensors fixedly coupled to the busbar holder, and circuitry electrically connected to the plurality of busbars and the plurality of gas flow detection sensors.
Absstract of: US2025239751A1
An electrochemical apparatus includes a housing, an electrode assembly, and a first conductive plate. The housing includes a main body portion and a sealing structure. The main body portion includes a first end wall and a second end wall opposite to each other in a first direction, a first wall and a second wall opposite to each other in a second direction, and a first side wall and a second side wall opposite to each other in a third direction. The sealing structure includes a first sealing portion connected to the first end wall and a second sealing portion connected to the first side wall. The first sealing portion folds in a direction towards the first wall. The first conductive plate includes a first surface facing the first wall and a second surface facing the second wall. An insulation adhesive connects the first conductive plate and the first sealing portion.
Absstract of: US2025239747A1
Disclosed is a battery, which includes an electrode assembly; a battery housing accommodating the electrode assembly through an open portion; a current collecting plate having a support portion, a plurality of uncoated portion coupling portions coupled to the first uncoated portion, and a plurality of first housing coupling portions coupled to an inner surface of the battery housing; a cap plate covering the open portion; an electrode terminal riveted through a perforated hole formed in a closed portion of the battery housing and electrically coupled to the second uncoated portion; and an insulating gasket interposed between the electrode terminal and the perforated hole, wherein the electrode terminal includes a body portion; an outer flange portion; an inner flange portion; and a flat portion provided on an inner side of the inner flange portion.
Absstract of: WO2025154801A1
This method (S05) for producing purified lithium carbonate comprises: a slurrying step (S51) in which water is added to lithium carbonate that contains 400 mass ppm or more of calcium so as to produce a lithium carbonate slurry; a bicarbonation step (S52) in which a CO2 gas is blown into the lithium carbonate slurry so as to produce lithium bicarbonate, thereby obtaining a lithium bicarbonate solution; a first solid-liquid separation step (S53) in which calcium carbonate suspended in the lithium bicarbonate solution is separated; a purified lithium carbonate crystallization step (S54) in which the lithium bicarbonate solution after the removal of the calcium carbonate is warmed so as to decompose the lithium bicarbonate, thereby precipitating purified lithium carbonate; a second solid-liquid separation step (S55) in which the precipitated purified lithium carbonate is separated from the mother liquid; and a mother liquid returning step (S56) in which the mother liquid obtained in the second solid-liquid separation step (S55) is returned to the slurrying step (S51).
Absstract of: WO2025155174A1
The present document relates to a method for initial stabilization of an aqueous battery by using a liquid electrode. The method may comprise: manufacturing cell blocks of aqueous batteries; performing quality control by repeatedly charging and discharging the manufactured cell blocks a predetermined number of times; shipping cell blocks, which have passed the standards of quality control, in a charged state equal to or exceeding the predetermined standard; and installing the aqueous batteries at an installation position in a state in which the self-discharge rate (SDR) stabilization of the cell blocks is achieved, during a storage and delivery period of the shipped cell blocks.
Absstract of: WO2025155120A1
The present invention relates to an electrode assembly, a secondary battery, and a battery unit and, more specifically, to an electrode assembly, a secondary battery, and a battery unit capable of efficient heat exchange. The electrode assembly according to an embodiment of the present invention comprises: a plurality of electrodes; a separator interposed between the plurality of electrodes; and a plurality of protrusions protruding from the plurality of electrodes to one side. The plurality of protrusions are at least partially non-overlapping in the thickness direction of the plurality of electrodes, and include a first portion extending along the longitudinal direction of the electrodes and a second portion connecting the electrodes to the first portion, and the width of the second portion is less than the width of the first portion.
Absstract of: WO2025154782A1
Provided are a novel magnesium composite oxide or calcium composite oxide, and a method for producing same. The production method is for producing a composite oxide containing magnesium or calcium, and includes: a heating step for heating a precursor compound at a temperature of 500ºC or lower in the presence of a salt that contains magnesium or calcium; and a washing step for washing with a washing liquid that includes water after the heating step. A combination of the precursor compound and the composite oxide is any of (A) to (E).
Absstract of: WO2025154868A1
The present application may provide an electric device comprising: a battery cell capable of securing excellent capacity retention, high current output, and appropriate capacity by combining an electrode responsible for high capacity and an electrode responsible for high current output, and capable of flexibly coping with rapidly changing current output conditions while having appropriate capacity; and an electric vehicle including the battery cell and having excellent output and an improved driving range.
Absstract of: WO2025152103A1
A continuous recovery device and method for lithium ion battery positive electrode sheets. The recovery device comprises a conveying mechanism (1), a loading mechanism (2), a pulse mechanism (3), and an unloading mechanism (4); the conveying mechanism (1) comprises a conveying line (11) and a plurality of clamps (12), the plurality of clamps (12) are uniformly distributed on the conveying line (11) in the conveying direction of the conveying line (11), and the conveying line (11) is sequentially provided with a loading area (111), a pulse area (112), and an unloading area (113) in the conveying direction of the conveying line (11); the loading mechanism (2) is configured to install a positive electrode sheet to be processed into a clamp (12) in the loading area (111), each clamp (12) is configured to sequentially convey the corresponding positive electrode sheet from the loading area (111) to the unloading area (113) through the pulse area (112), and the pulse area (112) is located on the side of the conveying line (11) facing the ground; the pulse mechanism (3) comprises a first driving member (31) and a pulse member (32), the first driving member (31) is spaced apart from and arranged below the pulse area (112), and the first driving member (31) is transmittingly connected to the pulse member (32), so that the pulse member (32) abuts against the positive electrode sheet; and the unloading mechanism (4) is configured to unload aluminum foil separated from the positive electr
Absstract of: WO2025152136A1
The present disclosure provides an iron phosphate material, and a preparation method therefor and a use thereof. The method comprises the following steps: mixing a solution of a temperature-sensitive polymer having an upper critical solution temperature, a solution containing an iron source, and a solution containing a phosphorus source to obtain a mixed solution; carrying out gelation treatment on the mixed solution, then adding an alkali liquid, adjusting the pH value until the solution is acidic, and heating to obtain a precipitate; carrying out aging reaction on the precipitate together with a phosphoric acid solution to obtain a precursor material; and carrying out calcination treatment on the precursor material to obtain the iron phosphate material. In the present disclosure, by introducing the temperature-sensitive polymer, a thermo-responsive reversible sol-gel is prepared as a medium to fractionate and distribute the alkaline precipitant, so as to achieve uniform diffusion of the precipitant, avoid the problems of excess local concentration and poor product uniformity, and suppress movement of nanoparticles, thereby preventing agglomeration of iron phosphate particles.
Absstract of: WO2025152071A1
The present application relates to the technical field of battery material preparation, and discloses a lithium manganese iron phosphate positive electrode material, and a preparation method therefor and a use thereof. In the preparation method, a manganese iron hydroxide is used as a precursor to prepare a lithium manganese iron phosphate positive electrode material. A lithium manganese iron phosphate positive electrode material having a more uniform element distribution, a more stable structure, and better electrical performance can be obtained by means of conditional controls such as pre-sintering treatment. The present application has a simple process, a high element utilization rate and low costs, is environmentally-friendly and easy to realize large-scale industrial production, and has broad industrialization prospects.
Absstract of: US2025239735A1
A winding-type or kind electrode assembly includes a first electrode, a separator, and a second electrode, wherein the first electrode includes a first substrate including a front surface and a rear surface, a front first active material layer on the front surface and a rear first active material layer on the rear surface, a first end functional layer on the front surface and spaced from the front first active material layer, and a second end functional layer on the rear surface and spaced from the rear first active material layer, and a step compensation layer on the second end functional layer and corresponding to a gap between the front first active material layer and the first end functional layer, wherein the first end functional layer is wound around the electrode assembly at least once.
Absstract of: US2025239730A1
Disclosed are an electrode assembly capable of increasing energy density while reducing or preventing stack imbalance using an unreacted region, a method of manufacturing the same, and a secondary battery comprising the same. The electrode assembly includes a first electrode, a second electrode, and a separator between the first electrode and the second electrode, an outermost layer of the first electrode or the second electrode including an unreacted region or an uncoated portion in which no active material is present, and on which there is an adhesive coating layer is bonded to the separator.
Absstract of: US2025239589A1
The present application provides a lithium carbon composite belt and a preparation method therefor. The lithium carbon composite belt comprises a substrate, a metal lithium transition layer on each side of the substrate, and a lithium carbon composite material layer on an outer layer of the metal lithium transition layer, wherein a mass fraction of carbon in the lithium carbon composite material layer is in a range from 5% to 90%. The substrate layer of the lithium carbon composite belt provides high tensile performance for the lithium carbon composite belt, which is suitable for large scale industrial production. The metal lithium transition layer makes the substrate layer tightly bound with the lithium carbon composite material layer, avoiding the problem of forming bumps during the production of the lithium carbon composite belt. The presence of the metal lithium transition layer can effectively reduce the internal resistance of the lithium carbon composite belt. The lithium in the transition layer is active lithium, and thus can also participate in the battery cycling process, so as to compensate the consumption of the metal lithium in the lithium carbon layer. The lithium carbon composite material layer contains a carbon skeleton, which can not only provide a reserved space for metal lithium deposition, inhibiting the volume change of the metal lithium during the cycling, but also effectively reduce local current density on an electrode, preventing the formation of lithi
Absstract of: US2025239738A1
A battery module and a battery module collection mechanism are provided. The battery module collection mechanism includes: a bracket, and a collection group including a serial assembly, where the serial assembly includes a first serial group, a second serial group, and a first connection member all disposed on the bracket, the first serial group and the second serial group each includes a first serial row and a second serial row arranged oppositely, and the first serial group and the second serial group each is connected in series with a cell group, and two first serial rows or two second serial rows of the first serial group and the second serial group are connected to each other by the first connection member.
Absstract of: WO2025154349A1
Provided is a gas adsorption sheet that can preferentially adsorb sulfide-based gases. According to an embodiment of the present invention, a cover film-equipped gas adsorption sheet for secondary batteries comprises: a gas adsorption sheet for secondary batteries, which contains a heat-resistant base material and a gas adsorption layer disposed on at least one side of the heat-resistant base material; and a cover film disposed on the side of the gas adsorption layer opposite from the heat-resistant base material. This gas adsorption layer contains a binder resin and gas-adsorbing particles that are constituted of a pore-bearing inorganic porous material and that can adsorb gas.
Absstract of: WO2025154812A1
Provided is a battery maintenance system comprising: a supply path for supplying a liquid to a battery; a first on-off valve provided on the supply path; and a second on-off valve provided downstream of the first on-off valve in a supply direction of the liquid on the supply path.
Absstract of: WO2025154400A1
The purpose of the present invention is to provide a sealing tape that expands inside a housing of, for instance, a lithium ion cell and thereby protects an electrode body from vibration or impact. This sealing tape that acheives the foregoing comprises an adhesive agent layer and a substrate layer that contains fluorine resin and/or (meth)acrylic resin and is disposed on the adhesive agent layer. The sealing tape has multiple openings that open on the surface side of the substrate layer.
Absstract of: WO2025154806A1
The present invention provides: an electrochemical device having an excellent initial capacity and capacity retention rate; a composition capable of improving the initial capacity and capacity retention rate of an electrochemical device; an electrode mixture; an electrode; and a secondary battery. The electrochemical device includes an electrode active material and a lithium supplement in a positive electrode and/or a negative electrode, and includes a filament-forming resin in the positive electrode and/or the negative electrode.
Absstract of: WO2025154207A1
A method according to the present disclosure is for estimating at least one parameter of a target system and is executed by at least one processor. A state space model of the target system is expressed by using an augmented system having a state variable including a partial differentiation, to an N-th-order (N is a natural number), obtained by using at least one parameter. The method includes: a step (S1061) for calculating a reference state vector with respect to a reference value of at least one parameter on the basis of a first measurement value of an input to the target system and a state equation of the augmented system; a step (S1071) for acquiring reduction time-series data in which the number of time-series data points is reduced from each of the first measurement value, a second measurement value of an output from the target system, and the reference state vector; and a step (S1091) for estimating at least one parameter on the basis of the state space model and the reduction time-series data.
Absstract of: WO2025152044A1
A surface modified hard carbon negative electrode material, a preparation method therefor and a use thereof, relating to the field of sodium ion batteries. The preparation method comprises mixing hard carbon powder, water, and a surface modifier to form a solid-liquid mixture, drying the solid-liquid mixture, and performing vacuum dehydration to obtain the surface modified hard carbon negative electrode material. The surface modifier is an organic compound containing both a carboxyl group and a carbonyl group. The carboxyl group in the surface modifier reacts with the hydroxyl group on the surface of a hard carbon negative electrode, so that the carbonyl group is accurately and uniformly insert into the surface of hard carbon. The introduced carbonyl groups can be used as active "anchoring points" in the electrolysis process to preferentially control and catalyze the decomposition of an inorganic salt and inhibit the excessive decomposition of an organic solvent, so that a uniformly distributed inorganic salt-rich SEI film is formed. The inorganic salt-rich SEI film is beneficial to the transmission of Na+ at an interface and maintenance of the structural stability of the SEI film, and finally the surface modified hard carbon negative electrode material having high first coulombic efficiency and excellent cycling stability is obtained.
Absstract of: US2025239660A1
A battery system includes: a battery pack including a plurality of battery cells, a battery management system monitoring and managing the battery pack, a power supply for supplying a voltage to the battery management system, and a wake-up circuit connected to a first CAN bus line and a second CAN bus line, and connecting the power supply and the battery management system to each other when a CAN bus voltage difference, which is a voltage difference between a first voltage of the first CAN bus line and a second voltage of the second CAN bus line, is greater than or equal to a predetermined threshold level.
Nº publicación: US2025239588A1 24/07/2025
Applicant:
KIM SHULKEE [KR]
PARK KYUTAE [KR]
OH CHEOLJIN [KR]
YOO KWANG HO [KR]
Kim Shulkee,
Park Kyutae,
Oh Cheoljin,
Yoo Kwang Ho
Absstract of: US2025239588A1
A negative electrode for a secondary battery includes a current collector and a negative electrode active material layer provided on at least one surface of the current collector. The negative electrode active material layer includes a first region corresponding to 50% of a total thickness of the negative electrode active material layer from a surface facing the current collector and a second region corresponding to 50% of the total thickness of the negative electrode active material layer from a surface opposite to the surface facing the current collector. The negative electrode active material layer includes two or more types of negative electrode active materials having D50 different from each other and satisfies the Equations 1 and 2. A secondary battery including the negative electrode is also provided.
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