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1532
resultados
Última actualización
18/03/2026 [07:26:00]
Resultados 500 a 525 de 1532
Resumen de: EP4707416A1
The invention relates to a battery foil (current collector) comprising an aluminum alloy, with the following composition:Si: 0.1 - 0.2wt-%,Fe: ≤ 0.6wt-%,Cu: 0.1 - 0.2wt-%,Mn: 0.03 - 0.05wt-%,Mg: 0.0 - 0.05wt-%Zn: 0.0-0.1wt-%Ti: 0.0 - 0.05wt-%,with 3-4 times as much Fe as Si,with at least 4 times as much Cu as Ti,wherein the aluminum alloy may have impurities of Cd with a max 20ppm, Pb with a max 100ppm and Hg with a max 5ppm, the sum of Pb, Hg, Cd and CrVI being ≤100ppm, the others (not mentioned) individually <0.05 wt-% and the sum of the others ≤0.15 wt-%, with the rest of the alloy being Al,and, wherein the battery cathode foil has intermetallic phases having an average diameter length of 0.5µm or more and their number density being on average 1.3×10<4>particles/mm<2> or more.
Resumen de: EP4707244A1
Process for making an (oxy)hydroxide of TM wherein TM is nickel or a combination of metals that comprises at least 60 mol-% nickel, referring to TM, and, optionally, at least one of cobalt and manganese, wherein said process comprises the steps of:(a) providing an aqueous slurry containing water-soluble salts of metals that constitute TM and slurried particles of (oxy)hydroxide of TM', wherein TM' is nickel or a combination of metals that comprises at least 60 mol-% nickel, referring to TM', and providing water-soluble salts of TM dissolved in water or in aqueous slurry (a),(b) providing an electrochemical cell comprising at least three compartments separated from each other by anion-exchange membranes, said compartments comprising anode and anolyte, aqueous slurry provided in step (a), and cathode and catholyte, respectively,(c) passing aqueous slurry as provided in step (a) and, if applicable, aqueous solution of salts of TM through the middle compartment and(d) applying an electrochemical current with a current density in the range of from 10 to 500 mA/cm<sup>2</sup>,(e) removing (oxy)hydroxide of TM from the electrochemical cell
Resumen de: EP4708388A1
The present invention relates to a positive electrode active material capable of improving performance of a lithium secondary battery, wherein it relates to a positive electrode active material including a lithium composite transition metal oxide in a form of a single particle; and a coating portion which is formed on the lithium composite transition metal oxide and includes an amorphous lithium compound, wherein the coating portion includes a first coating portion; and a second coating portion, wherein the first coating portion is in a form of a discontinuously formed island, and the second coating portion is in a form of a continuously formed coating layer, wherein the first coating portion and the second coating portion each independently include boron (B) and cobalt (Co), and optionally include at least one coating element selected from the group consisting of Co, Al, Ba, Ce, Cr, F, Mg, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, S, Sr, Ta, La, and Hf, and a positive electrode and a lithium secondary battery which include the same.
Resumen de: EP4708398A1
The present invention relates to a positive electrode active material comprising a lithium transition metal oxide in a form of a single particle, wherein the lithium transition metal oxide contains 60 mol% or more of nickel among total transition metals, wherein, when a pressure of 6,500 kgf/cm<sup>2</sup> is applied to the positive electrode active material, an amount of fine powder having a particle diameter of 1 µm or less is 10 vol% or less based on a total volume of the positive electrode active material after the applying the pressure, a method for preparing the positive electrode active material, and a positive electrode and lithium secondary battery including the positive electrode active material.
Resumen de: EP4708387A1
The present invention relates to a positive electrode active material including a lithium composite transition metal oxide in a form of a single particle; and a coating portion formed on a surface of the lithium composite transition metal oxide, wherein the coating portion includes a first coating portion; and a second coating portion, wherein the first coating portion is in a form of a discontinuously formed island, and the second coating portion is in a form of a continuously formed coating layer, wherein the first coating portion has a concentration gradient in which an amount of boron (B) decreases and an amount of cobalt (Co) increases from a surface thereof toward a center of a positive electrode active material particle, and the amount of the boron (B) among total metals excluding lithium in the positive electrode active material is in a range of 0.1 mol% to 1.25 mol%, and a positive electrode and a lithium secondary battery which include the same.
Resumen de: WO2025022197A1
Castable compositions are described. The castable composition comprise a liquid silicone rubber, a thixotropic agent comprising organic fibrils, and hollow glass microspheres. Cured compositions and methods of making the castable compositions, as well as battery modules comprising a plurality of battery cells and such cured compositions are also described.
Resumen de: AU2024265063A1
The present disclosure concerns a method (100) for producing recycled graphite, the method (100) comprising the steps of providing a reclaimed graphite concentrate comprising any one or more of carboxymethyl cellulose and styrene-butadiene rubber, pre-treating (120) the reclaimed graphite concentrate by subjecting the reclaimed graphite concentrate to an oxidizing environment at a temperature in the range 250 - 380 °C, thereby reducing the total concentration of carboxymethyl cellulose and styrene- butadiene rubber to less than 0.25 %, and thermally treating (130) the pre-treated reclaimed graphite concentrate by subjecting the pre-treated reclaimed graphite concentrate to a non-oxidizing environment at a temperature of at least 2300 °C. The invention also describes a recycled graphite, use of a recycled graphite, and a battery comprising a recycled graphite.
Resumen de: WO2024227995A1
The invention relates to a device for controlling an electric motor (7) of a vehicle (1), comprising: a pedal assembly (14); means (23) for estimating state variables (Xi) each making it possible to estimate the value of one force from a set of forces (Fload) opposing or contributing to the progress of the vehicle (1); wherein the control means (25) comprise a memory storing a set of steady states (SSmap) of the pedal assembly (14) defining the instantaneous power (Pssp user) for keeping the speed (v) of the vehicle (1) constant according to the values of the state variables (Xi); the control means (25) being configured to accelerate or decelerate the vehicle (1) if the power applied by the user (Puser) is higher or lower, respectively, than the instantaneous power for keeping the speed of the vehicle constant (Pssp user).
Resumen de: CN121039820A
The present invention relates to a composition for preparing a positive electrode undercoat layer comprising a polyacrylic acid binder having a low molecular weight and carbon particles. The invention also relates to the use of said composition for producing a positive electrode and to a positive electrode which can be used for producing a rechargeable battery cell.
Resumen de: EP4708386A1
The present invention relates to a positive electrode active material capable of improving performance of a lithium secondary battery, the positive electrode active material including a lithium composite transition metal oxide in a form of a single particle; and a coating portion provided on the lithium composite transition metal oxide, wherein the coating portion comprises a first coating portion and a second coating portion, wherein the first coating portion is in a form of a discontinuously formed island, and the second coating portion is in a form of a continuously formed coating layer, wherein the first coating portion comprises boron (B) and optionally comprises at least one coating element selected from the group consisting of Co, Al, Ba, Ce, Cr, F, Mg, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, S, Sr, Ta, La, and Hf, the second coating portion comprises a compound having a composition represented by Formula 1 or 2 set forth in the specification, and an amount of boron (B) among total metals excluding lithium in the positive electrode active material is 0.1 mol% to 1.25 mol%, a method for preparing the positive electrode active material, and a positive electrode and lithium secondary battery including the positive electrode active material.
Resumen de: EP4708374A1
The present invention relates to a positive electrode active material capable of improving performance of a lithium secondary battery, the positive electrode active material including: a first lithium composite transition metal oxide in a form of a single particle; and optionally a second lithium composite transition metal oxide in a form of a single particle, wherein the first lithium composite transition metal oxide in the form of a single particle includes 30 or less disk-type primary particles, wherein each of the disk-type primary particles is a primary particle observed from a scanning electron microscope (SEM) image of a surface or cross section of the positive electrode active material, wherein, when an imaginary tangent line with the most contact points is drawn to each of two boundary lines of the primary particle present within an angle of 45° or less based on a long diameter direction and one imaginary line crossing the two tangent lines is drawn, interior angles of same side are at least 150° and at most 210°, and an aspect ratio of (major axis/minor axis) is 1.5 or more, wherein the positive electrode active material includes the first lithium composite transition metal oxide in an amount of 20 vol% to 100 vol% based on a total volume of the positive electrode active material, a method for preparing the positive electrode active material, and a positive electrode and lithium secondary battery including the positive electrode active material.
Resumen de: EP4708384A1
The present invention relates to a method of preparing a positive electrode slurry composition, which includes steps of (S1) adding a positive electrode active material, a conductive agent, a binder, and a non-aqueous solvent to a mixer and mixing to prepare a mixture having a solid content of greater than 60 wt% and a temperature of -20°C to 45°C; (S2) cooling the mixture to -30°C to 15°C to prepare a positive electrode slurry composition precursor; and (S3) maintaining a temperature of the positive electrode slurry composition precursor to prepare a positive electrode slurry composition having a V<sub>72</sub> of 0% to 50%, wherein V<sub>n</sub> is a viscosity increase rate when the temperature of the positive electrode slurry composition precursor is maintained for n hours, and the viscosity increase rate is represented by Equation 1 described in the present specification, and a method of preparing a positive electrode.
Resumen de: CN121039177A
The present invention relates to a composition in powder form comprising a polymer P1 comprising monomeric units derived from a vinylidene fluoride monomer M0 or monomeric units derived from a monomer M2 of formula R1R2C = C (R3) C (O) R wherein the substituents R1, R2 and R3 are selected independently of each other from H and C1-C5 alkyl; r is selected from-NHC (CH3) 2CH2C (O) CH3 or-OR ', wherein R' is selected from H and C1-C18 alkyl optionally substituted by one or more-OH groups or a five or six membered heterocycle comprising at least one nitrogen atom in its ring chain; or a mixture of M0 or M2 monomeric units; characterised in that the polymer P1 has a particle size distribution Dv99 of less than 89 mu m and a particle size distribution Dv10 of greater than 2.0 mu m.
Resumen de: MX2025013093A
Blended cathode active materials including an iron phosphate based active material and a nickel oxide based active material, and methods of manufacture, are described. The blended cathode active materials enable energy storage devices with improved performances, including but not limited to improved capacity retention and cycling lifetime.
Resumen de: TW202508973A
A process of synthesizing a lithium lanthanum zirconium oxide (LLZO) powder may include mixing a lithium salt, water, and a precursor blend comprising a lanthanum precursor and a zirconium precursor to form a mixture. The process may include heating the mixture at low pressure to form a dried lithiated powder. The process may include calcining the dried lithiated powder to form a lithium lanthanum zirconium oxide powder. The LLZO powder may include a cubic garnet phase purity of greater than 95 wt%.
Resumen de: AU2024275183A1
The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein the halogen intermediate is produced from the Li halide fumed from the molten slag. The halide is thus efficiently re-used in the process, while the lithium is recovered and isolated.
Resumen de: EP4708383A1
The present invention relates to a method of preparing a positive electrode slurry composition, which includes steps of (S1) mixing a positive electrode active material, a conductive agent, and a binder in a non-aqueous solvent to prepare a mixture having a solid content of greater than 60 wt%; (S2) cooling the mixture to -30°C to 15°C to prepare a positive electrode slurry composition precursor; and (S3) maintaining a temperature of the positive electrode slurry composition precursor to prepare a positive electrode slurry composition having a V<sub>72</sub> of 0% to 50%, wherein V<sub>n</sub> is a viscosity increase rate when the temperature of the positive electrode slurry composition precursor is maintained for n hours, and the viscosity increase rate is represented by Equation 1, and a method of preparing a positive electrode.
Resumen de: EP4708438A1
A monomer for an electrolyte according to embodiments of the present disclosure may include a first monomer represented by Formula 1 and a second monomer represented by Formula 2. A lithium secondary battery according to embodiments of the present disclosure may include a cathode, an anode, and an electrolyte layer, wherein the electrolyte layer may include a polymer derived from a compound represented by Formula 1.
Resumen de: EP4708432A1
The present disclosure relates to a porous organic-inorganic composite electrolyte membrane, an organic-inorganic composite electrolyte comprising the porous organic-inorganic composite electrolyte membrane, a secondary battery comprising the porous organic-inorganic composite electrolyte membrane, and a method for manufacturing the porous organic-inorganic composite electrolyte membrane, the porous organic-inorganic composite electrolyte membrane comprising an oxide-based inorganic electrolyte and a fluorine-based polymer matrix, wherein the oxide-based inorganic electrolyte is contained in the fluorine-based polymer matrix, and, in the X-ray photoelectron spectroscopy (XPS) analysis result of the surface, the ratio (S<sub>CO3</sub>/S<sub>Zr</sub>) of the area (SCO<sub>3</sub>) of a peak corresponding to CO3 in the C1s spectrum to the area (S<sub>Zr</sub>) of a peak corresponding to Zr3d<sub>5/2</sub> in the Zr3d spectrum is greater than 0 and less than or equal to 5.0.
Resumen de: EP4708431A2
An electrode structure for a lithium secondary battery according to exemplary embodiments may comprise: a negative electrode; and a composite electrolyte layer formed on the negative electrode and including an oxide-based electrolyte and a polymer electrolyte. The oxide-based electrolyte may include a sintered body, and the volume of the oxide-based electrolyte included in the composite electrolyte layer may be more than that of the polymer electrolyte included in the composite electrolyte layer. Accordingly, a lithium secondary battery having improved capacity characteristics and lifespan characteristics can be provided.
Resumen de: EP4706479A1
The present disclosure relates to a cleaner including a battery, more particularly, to a battery including a protrusion protruding toward one side from the battery body; and a button configured to selectively fix the battery body to the battery receiving part, and is capable of allowing easy operation of the button to release the handle, and allowing the button to be formed compact without protruding outward, and a cleaner including the same.
Resumen de: CN121038952A
A thermal barrier article includes a multilayer material including a first fabric layer disposed on a first side of a ceramic layer and a second fabric layer disposed on an opposite side of the ceramic layer. The thermal barrier article may also include an alternating arrangement of a plurality of fabric layers and ceramic layers. In each of these aspects, the thermal barrier article has sufficient flexural and thermal characteristics to withstand a flexural adjustment test and a pyrotechnic explosion test that has a temperature of at least 1200 DEG C and expels particles of non-solid mass.
Resumen de: CN121039819A
The invention relates to a method for preparing a positive electrode undercoat layer, which combines two polyacrylic acid binders of different molecular weights and carbon particles. The invention also relates to a composition suitable for use in said method and to a positive electrode useful in the manufacture of a rechargeable battery cell.
Resumen de: WO2024231297A1
The present invention pertains to a binder for Li-ion battery positive electrode, to a method of preparation of said electrode and to its use in a Li-ion battery. The invention also relates to the Li-ion batteries manufactured by incorporating said electrode.
Nº publicación: EP4706113A1 11/03/2026
Solicitante:
ZENTRUM FUER SONNENENERGIE UND WASSERSTOFF FORSCHUNG BADEN WUERTTEMBERG GEMEINNUETZIGE STIFTUNG [DE]
Zentrum f\u00FCr Sonnenenergie- und Wasserstoff-Forschung Baden-W\u00FCrttemberg Gemeinn\u00FCtzige Stiftung
Resumen de: WO2024227929A1
The present invention relates to an electrode for use in a rechargeable alkaline battery. The electrode comprises a current collector, an active material which is loaded on the current collector, and an anion-exchange membrane, wherein the active material comprises MnO2 or Zn and the anion-exchange membrane comprises a crosslinked benzimidazole polymer. The present invention further relates to a rechargeable alkaline battery comprising the electrode as a positive electrode, when the active material comprises MnO2, or as a negative electrode, when the active material comprises Zn.
BOPI
Sede Electrónica
