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1718
resultados
Última actualización
03/10/2025 [07:23:00]
Resultados 850 a 875 de 1718
Resumen de: WO2025197735A1
Provided is an electrolyte solution which contains a bis(fluorosulfonyl) imide salt, a hexafluorophosphate, a compound that contains an anion represented by general formula (1), and a nonaqueous solvent, wherein: the ratio of the mass of the hexafluorophosphate to the mass of the bis(fluorosulfonyl) imide salt in the electrolyte solution is 0.45 or less; and the content of the compound that contains an anion represented by general formula (1) is 0.03 mass% or more in 100 mass% of the electrolyte solution. General formula (1): R1SO3 - (R1 represents a halogen atom.)
Resumen de: WO2025198087A1
The present invention relates to an internal pressure-maintaining plate for an all-solid-state battery and an all-solid-state battery module including same. More specifically, a porous layer including a metal foam; a first support layer on the upper surface of the porous layer; and a second support layer on the lower surface of the porous layer are included. The internal pressure-maintaining plate for an all-solid-state battery has a plateau section in which a change in stress is 10 MPa or less when the strain increases by 0.1 or more in a stress-strain curve, and the stress in the plateau section is 1 MPa to 40 MPa.
Resumen de: WO2025198084A1
An electrode assembly of a rechargeable battery comprises: a separator; a first electrode and a second electrode that are stacked and wound with the separator therebetween; and a protective layer that covers at least one of both ends of the first electrode in the winding direction. The protective layer includes: a first protective layer located to be in contact with one surface of the first electrode; and a second protective layer located to be in contact with the other surface of the first electrode and the first protective layer. The end of the first protective layer located on the one surface and the end of the second protective layer located on the other surface are spaced apart from each other in the winding direction.
Resumen de: WO2025195012A1
A roller pressing system and an electrode sheet preparation apparatus. The roller pressing system (100) comprises a support roller (1) and a plurality of work rollers (2), wherein the support roller (1) comprises a first support roller (11), and the first support roller (11) and the work rollers (2) are rotatably arranged; a roller pressing gap (20) is formed between the peripheral walls of any two work rollers (2) adjacent to each other in a first direction; the peripheral wall of the first work roller (21) and the peripheral wall of the first support roller (11) abut against each other in the first direction, or have a first spacing gap (110) therebetween; the first work roller (21) is the work roller (2) among the plurality of work rollers (2) close to the first support roller (11); and the radius of each work roller (2) is less than the radius of the support roller (1). By means of the roller pressing system, a coating layer formed by means of roller pressing has a uniform thickness and relatively good consistency.
Resumen de: WO2025195131A1
The present disclosure relates to the field of batteries, and in particular to a positive electrode sheet and a battery. The positive electrode sheet comprises a first positive electrode active material containing single crystal particles and a second positive electrode active material containing polycrystalline particles; the first positive electrode active material comprises elements A1 and A'1, the second positive electrode active material comprises elements A2 and A'2, and the content m2 of the element A'1 is less than or equal to the content m4 of the element A'2. The positive electrode sheet of the present disclosure has high compacted density and good electrochemical performance. The battery of the present disclosure has high energy density, good cycle performance and low internal resistance.
Resumen de: WO2025195044A1
The present application provides a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte. The positive electrode sheet contains lithium-containing transition metal phosphate; and the lithium-containing transition metal phosphate contains submicron-sized particles and micron-sized particles. In addition, the electrolyte in the secondary battery contains a lithium salt and a film-forming stabilizer; and the lithium salt comprises a first lithium salt and a second lithium salt, wherein the first lithium salt contains lithium hexafluorophosphate, and the second lithium salt contains one or both of lithium bis(fluorosulfonyl)imide and lithium bis(trifluoromethylsulfonyl)imide. The secondary battery designed in the present application is advantageous in taking into account the energy density, the rate performance and the cycle performance of the battery.
Resumen de: WO2025198081A1
The present invention relates to a secondary battery in which, when the amount of gas inside a case increases and the internal pressure increases, the gas inside the case can be absorbed, through an adsorbent accommodated in a gas adsorption structure, to reduce the amount of the gas inside the case and thereby prevent the case and a cap plate from being deformed by the gas. One embodiment of the present invention provides a secondary battery comprising: an electrode assembly including a first electrode plate and a second electrode plate; a case accommodating the electrode assembly and open at one end; a cap plate sealing the one end of the case; and a gas adsorption structure mounted on the lower surface of the cap plate and accommodating a gas adsorbent, wherein the gas adsorbent is surrounded by an inner film, and the inner film can be surrounded by an outer film and a frame.
Resumen de: WO2025197719A1
A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises: a wound electrode body in which a belt-like positive electrode and a belt-like negative electrode are wound together, with a separator being interposed therebetween; and an outer package which houses the electrode body. The positive electrode has a positive electrode current collector and positive electrode mixture layers that are formed on both surfaces of the positive electrode current collector, and a first positive electrode current collector exposed part in which the positive electrode current collector is exposed is formed on one surface of the positive electrode. A positive electrode tab is connected to the first positive electrode current collector exposed part, and a protective tape is adhered so as to cover the first positive electrode current collector exposed part and the positive electrode tab. If the first positive electrode current collector exposed part is divided into a first region to which the positive electrode tab is connected and a second region which is adjacent to the first region, the thickness T1 of the positive electrode in the first region and the thickness T2 of the positive electrode in the second region satisfy the relational expression T2/T1 > 0.5.
Resumen de: WO2025197710A1
In relation to an alloy powder that contains at least nickel, cobalt and copper, the present invention provides features which increase acid leaching properties and shorten a leaching time and which enable production of an aqueous mineral acid salt solution containing high concentrations of nickel and cobalt. This alloy powder contains at least nickel, cobalt and copper, has a copper content of 25 mass% to 45 mass%, and has a specific surface area of 0.07 m2/g or more. In addition, this method for producing an alloy powder includes: a step for preparing an alloy which contains at least nickel, cobalt and copper and which has a copper content of 25 mass% to 45 mass%; and a step for obtaining an alloy powder having a specific surface area of 0.07 m2/g or more by subjecting the alloy that has been prepared to atomization.
Resumen de: WO2025197736A1
A data acquisition unit (111) acquires battery data including the voltage and current of a secondary battery included in a battery pack. An SOH estimation unit (113) estimates the SOH by using a two-point open circuit voltage (OCV) method. An SOH progress curve generation unit (115) uses a calculated plurality of SOH sample data to perform curve regression and generate an SOH progress curve for the secondary battery. A period confirmation unit (112) confirms the sampling period of the battery data. The SOH progress curve generation unit (115) increases a weighting to the extent of the SOH calculated on the basis of the battery data in a section in which the sampling period is short.
Resumen de: WO2025197526A1
This all-solid-state battery comprises: a base material; a first battery unit; and a second battery unit. The base material is foldable. The first battery unit and the second battery unit are separated from each other and are each layered on a first surface of the base material. Each of the first battery unit and the second battery unit includes a lower conductive layer, a first electrode, a solid electrolyte layer, a second electrode, an upper conductive layer, and an insulating layer. The lower conductive layer of the first battery unit and the lower conductive layer of the second battery unit, or the upper conductive layer of the first battery unit and the upper conductive layer of the second battery unit are connected. The first battery unit and the second battery unit can be layered by folding the base material between the first battery unit and the second battery unit.
Resumen de: WO2025198105A1
A disclosed all-solid-state battery includes a solid electrolyte layer, a first electrode unit layer and a second electrode unit layer facing each other with the solid electrolyte layer interposed therebetween, a first external electrode connected to the second electrode unit layer, and a first margin part disposed between the first electrode unit layer and the first external electrode, wherein the first electrode unit layer includes a first current collector, and a first boundary part disposed between the first current collector and the first margin part and including a first active material.
Resumen de: WO2025198002A1
The present invention reduces the possibility tab leads deforming when a sealant is discharged into an opening of a container to seal the opening. This sealing device (1A) comprises: a fixing tool (11) that restricts deformation of tab leads (23), which are connected to a current collector accommodated in a container (24) and extend from a current collector to the outside of the container, by clamping the tab leads on the outside of the container; and a nozzle (121) that discharges a sealant (13) into an opening (241) of the container (24) while the fixing tool (11) is clamping the tab leads (23).
Resumen de: WO2025198012A1
Provided is a method for obtaining a salt aqueous solution containing nickel and cobalt by leaching nickel and cobalt in a shorter leaching time while effectively separating copper, nickel, and cobalt from a mixture containing nickel, cobalt, and copper, such as a highly corrosion-resistant alloy obtained by dry-treating a waste battery material. The present invention is a method for producing a nickel and cobalt salt aqueous solution, the method comprising a step for bringing a mixture containing nickel, cobalt, and copper into contact with a mineral acid under conditions in which a sulfurizing agent is present, wherein the mixture is immersed in a mineral acid in an amount of 1 equivalent or more until the oxidation-reduction potential, at which a silver/silver chloride electrode is used as a reference electrode, reaches 70 mV after having reached a minimum value, and thereafter, a sulfurizing agent is added to the solution, whereby nickel and cobalt are leached from the mixture.
Resumen de: WO2025197446A1
According to the present invention, a measurement value acquisition unit acquires voltage data on a secondary battery measured at regular intervals from a discharge end timing of the secondary battery to a first timing. A difference integrated value calculation unit calculates differential voltages between a voltage measured at a first timing and each of a plurality of voltages measured during an idle period from the discharge end timing to the first timing, and calculates an integrated value of the plurality of calculated differential voltages. A voltage change amount estimation unit estimates a voltage change amount on the basis of the integrated value of the calculated differential voltage by referring to a preconstructed table or preconstructed function describing the relationship between (a) the integrated value of the differential voltages and (b) the voltage change amount from the first timing to a second timing at which the voltage of the secondary battery is considered to converge. An OCV estimation unit estimates the voltage at the second timing by adding the estimated voltage change amount to the voltage measured at the first timing.
Resumen de: WO2025197956A1
Provided are: a transfer member for forming a negative electrode that ensures adhesion of a carbon-containing layer against handling when forming an electrode having a carbon-containing layer, and that has excellent transferability of the carbon-containing layer onto a solid electrolyte layer or a current collector as a transfer material; a negative electrode structure, an electrode, and a secondary battery using the transfer member; and a method for producing the same. The transfer member for forming a negative electrode is applied to a secondary battery, transfers a carbon-containing layer to a body to be transferred, and includes a substrate having a first linear expansion coefficient, and the carbon-containing layer that contains an electrically conductive carbon allotrope and that has a second linear expansion coefficient in which the absolute value of the difference with the first linear expansion coefficient is 10.0 × 10-6 K-1 or less.
Resumen de: WO2025197954A1
Provided are: a negative electrode structure having excellent ion conductivity between a negative electrode containing carbon and an oxide-based solid electrolyte layer; a secondary battery capable of operating at room temperature using the negative electrode structure; and methods for manufacturing the negative electrode structure and the secondary battery. The negative electrode structure is characterized by comprising: a negative electrode including an allotrope of carbon having conductivity; an electrolyte layer including an oxide-based solid electrolyte; an intermediate layer disposed between the negative electrode and the electrolyte layer and including at least one among an inorganic material and a lithium alloy that are alloyed with lithium; and a protective layer bonded to the negative electrode on a surface of the negative electrode opposite to a surface in contact with the intermediate layer, wherein an absolute value of a difference between a first linear expansion coefficient of the protective layer and a second linear expansion coefficient of the negative electrode is 10.0×10-6K-1 or less.
Resumen de: WO2025197711A1
This battery pack comprises a secondary battery and a charging control circuit. The charging control circuit is controllable to charge the secondary battery by constant current charging and constant voltage charging. The charging control circuit estimates deterioration of the secondary battery by using a change in voltage of the secondary battery in the constant current charging.
Resumen de: WO2025197682A1
The present disclosure provides a battery comprising: a positive electrode having a porous structure; a negative electrode; and a quasi-solid electrolyte disposed between the positive electrode and the negative electrode, wherein the positive electrode contains a first polymer and a conductive auxiliary agent, the proportion of holes having a pore diameter of 0.1-100 μm to all holes, as measured by a mercury intrusion method, is at least 23%, and the quasi-solid electrolyte contains a second polymer having a polar functional group, an ionic compound, and particles.
Resumen de: WO2025196975A1
A power storage device (1) comprises: a plurality of battery cells (13) which are arranged one-dimensionally in a first arrangement direction with a gap therebetween or arranged two-dimensionally in the first arrangement direction and a second arrangement direction orthogonal to the first arrangement direction; and a housing (11) which houses the plurality of battery cells (13). A first opening having a plurality of first ventilation holes (21a) in and out of which a gas refrigerant flows is formed in at least one surface of the housing (11) which extends in the first arrangement direction. A second opening in and out of which the gas refrigerant flows is formed in at least one surface different from the surface of the housing (11) in which the first opening is formed. Among the plurality of first ventilation holes (21a), the opening area of at least one of the first ventilation holes (21a) is smaller than the opening area of another first ventilation hole (21a) which has a larger pressure loss in a gas refrigerant flow path between said first ventilation hole (21a) and the second opening than that of the former first ventilation hole (21a).
Resumen de: WO2025196907A1
According to an embodiment of the present invention, provided is a non-aqueous electrolyte battery comprising: a positive electrode; a negative electrode; a separator provided between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The separator includes nonwoven fabric. In each of the main faces on both the front and back sides of the separator and the region of a one-third portion at the center of the separator in the thickness direction, the mass ratio of fluorine is 10%-20%, and the mass ratio of phosphorus is 4%-10%. The air permeability of the nonwoven fabric is 30 seconds/100 cm3 to 50 seconds/100 cm3.
Resumen de: WO2025196899A1
Problem To provide an information processing device, an information processing method, a computer program, and an information processing system that make it possible to estimate the timing at which a target event will occur at a target storage battery that includes a plurality of cells. Solution This information processing device comprises a processing part that calculates target trend data that represents the trend in the value of an index for the state of a target storage battery on the basis of measurement data for the target storage battery and estimates the timing at which a target event will occur at the target storage battery on the basis of the target trend data and at least one piece of standard trend data that represents a standard trend in the value of the index for the state of a storage battery during a period from a first time to a second time at which the target event occurs at the storage battery.
Resumen de: WO2025196904A1
One embodiment of the present invention provides a battery that comprises: a positive electrode including a positive electrode mixture layer containing a lithium nickel cobalt manganese-containing oxide; a negative electrode; and an electrolyte. The battery satisfies the following formulas (1) and (2). (1): 1.1≤MCo/MMn≤1.8 (2): 0.2≤R1/R2≤0.5 In the formulas (1) and (2), MCo is the proportion (mol%) of cobalt in the total amount of nickel, cobalt, and manganese of the lithium nickel cobalt manganese-containing oxide, and MMn is the proportion (mol%) of manganese in the total amount of nickel, cobalt, and manganese of the lithium nickel cobalt manganese-containing oxide. R1 is the discharge resistance (Ω) of the battery at 25°C, and R2 is the discharge resistance (Ω) of the battery at -20°C.
Resumen de: WO2025196893A1
According to an embodiment, a secondary battery comprises an electrode body accommodated within an exterior container. The electrode body includes: an electrode group including a plurality of stacked positive electrode plates, negative electrode plates, and separators; a positive electrode current collecting tab group including a plurality of stacked positive electrode current collecting tabs, the positive electrode current collecting tab group extending in one direction from the electrode group; and a negative electrode current collecting tab group including a plurality of stacked negative electrode current collecting tabs, the negative electrode current collecting tab group extending in another direction from the electrode group. At least a portion of the positive electrode current collecting tab group constitutes a binding part in which the plurality of positive electrode current collecting tabs are collected in the thickness direction by a binding member. The thickness of the separator is 4-6 µm. The ratio (WS/W3) of the separator width WS to the coating width W3 of an active material layer having the greater coating width, among an active material layer of the positive electrode plates and an active material layer of the negative electrode plates, is 1.01 < WS/W3 < 1.06. The ratio (T/d2) of the thickness T of the electrode group at the position of the binding part to the difference d2 between the winding-axis-direction length W2 of the positive electrode current c
Nº publicación: WO2025196910A1 25/09/2025
Solicitante:
KK TOSHIBA [JP]
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Resumen de: WO2025196910A1
According to one embodiment, provided is a non-aqueous electrolyte battery that includes a positive electrode containing a lithium-containing nickel cobalt manganese oxide, a negative electrode containing a lithium-titanium-containing oxide, and a non-aqueous electrolyte. The ratio PLi−F/PNi of the peak intensity PLi−F of the maximum intensity peak appearing within the range of 682 eV to 685 eV in the X-ray photoelectron spectrum of the positive electrode surface of the positive electrode to the peak intensity PNi of the maximum intensity peak appearing within the range of 850 eV to 858 eV in the X-ray photoelectron spectrum of the positive electrode surface is 0.6-1. The ratio NLi−F/N Ti of the peak intensity NLi−F of the maximum intensity peak appearing within the range of 682 eV to 685 eV in the X-ray photoelectron spectrum of the negative electrode surface of the negative electrode to the peak intensity NTi of the maximum intensity peak appearing within the range of 454 eV to 460 eV in the X-ray photoelectron spectrum of the negative electrode surface is 1.8-3.
BOPI
Sede Electrónica
