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1603
resultados
Última actualización
10/11/2025 [07:13:00]
Resultados 975 a 1000 de 1603
Resumen de: US2025336917A1
Examples of the disclosure include a positive electrode, a rechargeable lithium battery including the positive electrode, and a positive electrode for a rechargeable lithium battery including a current collector, a first active material layer on the current collector. The first active material layer includes a first particle, a second particle, a first binder, and a first conductive material, and a second active material layer on the first active material layer. The second active material layer includes a third particle, a second binder, and a second conductive material. The first particle contains an olivine structured compound, the second particle contains a layered compound, the third particle contains an olivine structured compound, the first active material layer and the second active material layer have a cobalt (Co) content that is less than about 100 ppm, the first particle includes a plurality of first primary particles aggregated together.
Resumen de: US2025336932A1
Provided are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and for example, a positive electrode for a rechargeable lithium battery, including a current collector, a first positive electrode active material layer on the current collector, and a second positive electrode active material layer on the first positive electrode active material layer. The first active material layer includes a first particle represented by Formula 1 and having the form of a single particle and a second particle represented by Formula 2, and the second positive electrode active material layer includes a third particle represented by Formula 3 and having the form of a secondary particle in which a plurality of primary particles are aggregated. The first particle is present in a greater content than the second particle.
Resumen de: US2025336914A1
A positive electrode includes a positive electrode active material containing a plurality of first particles and a plurality of second particles having an average particle diameter smaller than an average particle diameter of the plurality of first particles, and letting a resistance of the plurality of first particles be R1 and a resistance of the plurality of second particles be R2 as measured using a scanning spreading resistance microscope, a ratio (log R2/log R1) of logarithms of the resistance (R1) of the plurality of first particles and the resistance (R2) of the plurality of second particles is 1.25 or less.
Resumen de: US2025336911A1
According to an aspect of the present invention, there is provided a method for manufacturing a secondary battery, the method including: preparing an electrode assembly in which electrodes and a separator are alternately laminated, and an adhesive is applied to the surface of at least one among the electrodes and the separator, thereby allowing the electrodes and the separator to adhere to each other; accommodating the electrode assembly in a battery case; injecting a gel polymer electrolyte composition into the battery case to impregnate the electrode assembly with the gel polymer electrolyte composition; and curing the gel polymer electrolyte composition, wherein the adhesive includes a first oligomer compound, the separator includes a porous substrate and ceramic coating layers disposed on both surfaces of the porous substrate, the ceramic coating layers include 92-100 wt % (exclusive of 100) of inorganic particles and 0-8 wt % (exclusive of 0) of a binder, and the gel polymer electrolyte composition includes a lithium salt, an organic solvent, a polymerization initiator, and a second oligomer compound.
Resumen de: US2025337050A1
The present disclosure discloses a battery case, which includes a case body and a liquid-cooling assembly. The case body is provided with an inner support beam. The inner support beam is provided with an inner guide passage and an output pipe connector in communication with the inner guide passage. The liquid-cooling assembly is mounted in the case body, and includes a first shunt element and a second shunt element arranged opposite to each other. The inner guide passage is arranged between the first shunt element and the second shunt element, and the first shunt element and the second shunt element are both in communication with the output pipe connector. The first shunt element guides the heat exchange medium to be transmitted along a diagonal direction thereof, while the second shunt element guides the heat exchange medium to transmit along a diagonal direction thereof.
Resumen de: US2025337102A1
The present disclosure relates to a separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator. The separator includes a porous substrate and a coating layer on a surface of the porous substrate. The coating layer includes a heat-resistant layer including a binder and a filler, and an adhesive layer including an adhesive binder on the heat-resistant layer. The binder includes a (meth)acryl-based binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof. The filler has a particle diameter D50 ranging from 250 nm to 350 nm. The adhesive binder includes a fluorine-based adhesive binder having a hydroxyl group or a carboxylic acid group and a fluorine-based adhesive binder not having a hydroxyl group and a carboxylic acid group.
Resumen de: US2025337061A1
A herein disclosed secondary battery includes a case main body, a second sealing plate, and an electrode body. Then, a second spacer supporting the electrode body from a downward position at an injection time of an electrolytic solution is arranged between the second sealing plate and the electrode body. The second spacer includes a pair of first wall parts and a pair of second wall parts. Then, the second spacer is configured to make a load bearing capacity of the second wall part be lower than a load bearing capacity of the first wall part. Then, this second spacer includes a rib configured to bridge the pair of second wall parts. By doing this, it is possible to suppress the deformation of the second spacer.
Resumen de: US2025337097A1
A battery system including a battery cell. The battery cell including: an enclosure including a first end, a second end opposite to the first end, and a sidewall extending from the first end to the second end; a first terminal at a first end of the enclosure and a second terminal at a second end of the enclosure; an assembly of an anode electrode and a cathode electrode within the enclosure, the cathode electrode is connected to the first terminal and the anode electrode is connected to the second terminal; and a vent in the sidewall of the enclosure, the vent configured to open to release at least one of gas and ejecta out from within the enclosure when pressure within the enclosure exceeds a threshold.
Resumen de: US2025336971A1
Provided are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and a negative electrode for a rechargeable lithium battery including a negative electrode current collector, and a negative electrode active material layer on the negative electrode current collector, wherein the negative electrode active material layer includes a first active material layer, a second active material layer, and a third active material layer, which are sequentially stacked on the negative electrode current collector, the negative electrode active material layer includes a conductive material, and the second active material layer further includes silicon-containing particles.
Resumen de: US2025337014A1
The present disclosure relates to an electrolyte solution for a rechargeable lithium battery and a rechargeable lithium battery including the same, wherein the electrolyte solution includes a non-aqueous organic solvent, a lithium salt, the above-described first additive represented by Chemical Formula 1, and the above-described second additive represented by Chemical Formula 2.
Resumen de: US2025337011A1
An object of the present invention is to provide a lithium ion secondary battery excellent in cycle characteristics and additionally corrosion resistance which are important in a vehicle-mounted secondary battery such as an electric vehicle, and to provide an electrolytic solution capable of producing such a lithium ion secondary battery. An electrolytic solution for a lithium ion secondary battery, the electrolytic solution containing an electrolyte dissolved in a nonaqueous solvent, in which the electrolytic solution contains cyanomethyl formate and/or 2-cyanoethyl formate. A lithium ion secondary battery including a positive electrode, a negative electrode, a separator, and the electrolytic solution for a lithium ion secondary battery.
Resumen de: US2025337006A1
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to sulfide solid electrolytes and synthesis of sulfide solid electrolytes. The electrolytes have the general formula AzMwSvCl4-yXy and exhibit good ionic conductivity. The electrolytes are relatively cost-effective to produce, as they contain naturally abundant elements, and can be synthesized via a relatively fast synthesis route. The electrolytes can be a component of different types of batteries or sensors for ion detection.
Resumen de: US2025337017A1
A battery includes a positive and a negative electrode plate, a separator, and an electrolyte solution. The additives of the electrolyte solution include tricyanophosphite compounds and alkyl polycyanide compounds. It can solve problems of large side reactions between electrolyte solution and electrode interface, and the significant deterioration of high-temperature cycling performance and high-temperature storage performance of the battery under high voltage. By adding an appropriate amount of electrolyte additive according to the areal density of the positive electrode, it is possible to form a very stable interface film and interface coordination effect on the positive electrode, significantly improving the stability of the electrolyte solution and the positive electrode interface, reducing the consumption of the electrolyte solution and the damage to the positive electrode structure during battery cycling, and significantly enhancing the high-temperature cycling performance and high-temperature storage performance of the battery at high voltage.
Resumen de: US2025336909A1
The present invention utilizes thin film deposition technology to directly deposit a compound of electrode affinity, hydrogen, and carbon atoms and its derivatives or composites onto the surface of an electrode foil, positive electrode plate or negative electrode plate to form an electrospun membrane which can directly serve as a separator membrane in an electrochemical device. Due to the strong affinity of the deposited thin film membrane to the surface of the electrode foil, positive electrode plate or negative electrode plate via thin film deposition process's attraction, a binding interface thereof exhibits an ordered ion channel layer which can serve as a beneficial artificial electrolyte interface layer on the current collector or electrodes.
Resumen de: US2025336913A1
A positive electrode granule includes a positive electrode active material and a binder. The positive electrode active material includes a lithium iron phosphate-based compound and the positive electrode active material is bound by the binder The binder is distributed uniformly at a central portion and a surface portion of the positive electrode granule The surface portion is a region near the granule surface from the granule surface to a predetermined depth toward the center of the granule, and the core portion is a region other than the surface portion. An electrochemical device including the same is also provided.
Resumen de: US2025336910A1
A method for pre-forming cathode electrolyte interphase on electroactive material, the method comprising sourcing a current or voltage to an electrochemical reactor comprising a cation source, an electrolyte mixture, one or more additives, and a cathode active material in contact with one another, wherein the current or voltage serves to ionize and form cations at the cation source that reacts with the cathode active material to pre-form cathode electrolyte interphase on the cathode active material.
Resumen de: US2025336934A1
A secondary battery and an electrical device are provided. The secondary battery includes a positive electrode sheet and a negative electrode sheet. The positive electrode sheet comprises a film layer that includes a positive electrode active material containing transition metals, with nickel accounting for at least 85% of the total molar content. The energy density of the positive electrode film layer on one side of the sheet ranges from 15 to 35 mWh/cm2. The negative electrode sheet comprises a film layer that includes a carbon-silicon composite, where silicon nanoparticles are attached to carbon matrix particles having a carbon skeleton. Through coordinated design of the positive and negative electrode materials, the energy density of the secondary battery is enhanced.
Resumen de: US2025336916A1
A positive electrode composition contains carbon black, a carbon nanotube, a binding material, and an active material. The carbon black has a hydrochloric acid liquid absorption amount of 30 mL/5 g or more. The carbon nanotube has an average diameter of 5 to 15 nm.
Resumen de: US2025337091A1
1 ABSTRACTA battery system including: a plurality of battery cells arranged along a stacking direction, each of the battery cells having a venting exit at a venting side thereof for discharging a venting gas stream; and a cover element covering the venting sides of the battery cells to protect the battery cells from the venting gas stream. The cover element including a plurality of individual cell covers respectively covering respective ones of the battery cells. Neighboring ones of the individual cell covers in the cover element are separated from each other by slits extending through the cover element such that each individual one of the cell covers is configured to be torn away individually from the corresponding battery cell by the venting gas stream discharged from the corresponding one of the venting exits.
Resumen de: US2025337054A1
The present disclosure relates to a heat insulation sheet for a rechargeable lithium battery, and a rechargeable lithium battery module including the heat insulation sheet. The heat insulation sheet for a rechargeable lithium battery includes a base sheet including a first base layer and an aerogel-containing layer that are stacked sequentially, and an inorganic layer formed on substantially the entire surface of the base sheet. The aerogel-containing layer includes a fibrous support, an aerogel, and a binder, and the aerogel-containing layer includes the fibrous support in an amount ranging from about 5 wt % to about 70 wt %, the aerogel in an amount ranging from about 10 wt % to about 90 wt %, and the binder in an amount ranging from about 0.5 wt % to about 20 wt %.
Resumen de: US2025337105A1
Examples of the present disclosure include a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator, and the separator for a rechargeable lithium battery includes a porous substrate and a coating layer located on at least one surface of the porous substrate. The coating layer includes a cross-linked product of a binder and a cross-linking agent, a filler, and an adhesive binder. The binder includes a (meth)acryl-based binder including one or more of a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylic acid or (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof, the cross-linking agent includes an aziridine-based cross-linking agent. The filler includes a filler having a particle diameter D100 of about 0.5 μm or less, and the adhesive binder includes a cross-linked (meth)acryl-based polymer or copolymer.
Resumen de: US2025337047A1
A thermal management system for a traction battery pack includes at least one cell stack having a plurality of battery cells, and a thermal exchange device adjacent the at least one cell stack. The thermal exchange device has at least one coolant passageway that communicates a coolant. A riser is coupled to the thermal exchange device. The riser is configured to fluidly couple the thermal exchange device to a coolant delivery system.
Resumen de: US2025337058A1
A battery cell includes an electrode assembly and a housing. The electrode assembly includes a negative electrode plate, where the negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one side of the negative electrode current collector and containing a negative electrode active material. The housing accommodates the electrode assembly, and the housing includes a side wall, where the side wall surrounds the electrode assembly. The negative electrode active material includes element silicon, and the housing is a cylindrical structure.
Resumen de: US2025336970A1
A positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. A positive electrode for a rechargeable lithium battery includes a current collector, a first active material layer on the current collector, and a second active material layer on the first active material layer. The first active material layer includes a first particle in the form of a single particle, and the second active material layer includes a second particle in the form of a secondary particle. The first particle includes a compound of Formula 1, and the second particle includes a compound of Formula 2, provided herein.
Nº publicación: US2025337003A1 30/10/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Resumen de: US2025337003A1
A battery may include an electrode assembly including electrodes and a body cup that includes a first reference wall and a first sidewall provided adjacent to the first reference wall, with the body cup having an open end and the body cup accommodating the electrode assembly. The battery also includes a cover cup that includes a second reference wall and a second sidewall provided adjacent to the second reference wall. The cover cup has an open end and is accommodated in the body cup such that the second reference wall closes the open end of the body cup. At least a portion of the first sidewall and at least a portion of the second sidewall are joined to form a flange.
BOPI
Sede Electrónica
