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1000
resultados
Última actualización
16/07/2026 [07:55:00]
Resultados 750 a 775 de 1000
Resumen de: WO2025049433A1
The present invention relates to electrodes formed with a polymer having stabilizing film(s), methods of providing the stabilizing film(s) and electrolyte compositions which can form the stabilizing film(s).
Resumen de: EP4773372A1
0001 The present application discloses a battery pack, including: a battery box, wherein a battery module is arranged in the battery box, and a bottom of the battery module is provided with an explosion-proof valve; and a bottom protection plate assembly including a liquid cooling plate and a bottom protection plate component, and the liquid cooling plate is mounted at the bottom of the battery module. By providing the bottom protection plate assembly and the liquid cooling plate at the bottom of the battery box, a protection effect on the battery module arranged in the battery pack is improved, use safety of the battery pack is ensured, a use effect is better, and an application range is wider.
Resumen de: EP4773309A1
The present disclosure relates to a non-aqueous electrolyte composition including a mixed solvent and selectively containing dual lithium salts, and to an electrochemical cell including the same.
Resumen de: EP4773286A1
0001 The present invention provides a modifying material for solid electrolytes, containing an ionic compound composed of an anion containing fluorine or a cyano group and a pyrrolidinium cation, a borate having a polymerizable functional group, and a lithium salt.
Resumen de: EP4773312A1
0001 Provided is a nonaqueous electrolyte secondary battery which achieves both high output and good quick charge cycle characteristics. In the nonaqueous electrolyte secondary battery according to the present disclosure, a positive electrode mixture layer contains a positive electrode active material, single-walled carbon nanotubes, and multi-walled carbon nanotubes, and a negative electrode mixture layer contains a first negative electrode mixture layer that is disposed on the surface of a negative electrode and a second negative electrode mixture layer that is disposed between the first negative electrode mixture layer and a negative electrode core body. The ratio P1 of coated graphite to the total mass of graphite in the first negative electrode mixture layer and the ratio P2 of coated graphite to the total mass of graphite in the second negative electrode mixture layer satisfy the relationship P1 > P2. The void fraction Vc of the positive electrode mixture layer during discharge and the void fraction Va of the negative electrode mixture layer during discharge satisfy the relationship Va - Vc < 13%.
Resumen de: EP4773311A1
0001 Provided is a non-aqueous electrolyte secondary battery having high capacity and high output as well as excellent quick charge cycle characteristics. In a non-aqueous electrolyte secondary battery according to the present disclosure: a positive electrode mixture layer contains a positive electrode active material, single-layer carbon nanotubes, and multi-layer carbon nanotubes; a negative electrode mixture layer contains a silicon-containing material; the curvature of the negative electrode mixture layer during discharge is 2.5 or lower; the porosity Vc of the positive electrode mixture layer during discharge and the porosity Va of the negative electrode mixture layer during discharge satisfy the relationship Va - Vc < 13%, and Va is 30% or greater.
Resumen de: EP4773323A1
A lithium secondary battery includes a positive electrode, a negative electrode, a separator provided between the positive electrode and the negative electrode, and a nonaqueous electrolyte. In the negative electrode, lithium metal deposits during charging and the lithium metal dissolves during discharging. The separator includes a sheet-shaped substrate and a spacer provided on one or both of the main surface of the substrate. The spacer includes protrusions. The relationship of Y < X is satisfied, where X denotes a ratio: St/S of a total area St of at least one part At where the protrusion and a region A where the substrate faces the positive electrode overlap to an area S of the region A, and Y denotes a ratio: Lt/L of a total length Lt of at least one part where the protrusion and any of the edges of the positive electrode along the outer shape of the positive electrode overlap to a total length L of the edges.
Resumen de: EP4773247A1
The present invention provides a binder composition for power storage devices, the binder composition enabling the production of a power storage device electrode that has an excellent surface state, adhesion, and ion conductivity, and the binder composition being capable of improving the cycle life characteristics of the power storage device. A binder composition for power storage devices according to the present invention contains a polymer (A), a nonionic surfactant (B), and a liquid medium (C). When the total of the repeating units contained in the polymer (A) is taken as 100% by mass, the polymer (A) contains 1-50% by mass of a repeating unit (a1) that is derived from an α,β-unsaturated nitrile compound and 40-80% by mass of a repeating unit (a2) that is derived from an unsaturated carboxylic acid ester. The content ratio of the nonionic surfactant (B) is 0.1-10 parts by mass relative to 100 parts by mass of the polymer (A), and the liquid medium (C) is composed of at least one substance that is selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, ketones, esters, ethers, glycol ethers, lactams, lactones, and amides.
Resumen de: WO2025049574A1
A. non-aqueous electrolyte for a lithium-ion cell includes a base electrolyte consisting of lithium hexafluorophosphate or lithium bis(tluorosulfonyl)imide or a combination thereof in methyl propionate; about 2 to about 15 parts by weight, preferably about 6 to about 15 parts by weight of vinylene carbonate; and about 0.5 to about 5 parts by weight, preferably about 2. to about 5 parts by weight of an additive comprising lithium difluorophosphate, lithium difluoro(oxalate)borate, lithium bis(oxalate)borate, or a combination thereof, wherein the content of the vinylene carbonate and. the additive are each based on a total weight of the base electrolyte, the vinylene carbonate, and the additives.
Resumen de: EP4773399A1
0001 A lithium secondary battery (10) disclosed includes a positive electrode (11), a negative electrode (12), a separator (13) and a spacer (53) that are disposed between the positive electrode (11) and the negative electrode (12), and a nonaqueous electrolyte. The negative electrode (12) is an electrode on which lithium metal is deposited during charging, and from which the lithium metal dissolves during discharging. The positive electrode (11) includes a positive electrode current collector (11a) and a positive electrode mixture layer (11b) disposed on the positive electrode current collector (11a). A portion of the spacer (53) is embedded in the positive electrode mixture layer (11b).
Resumen de: WO2025046597A1
The present subject matter relates to a fire-resistant battery pack (100) and a method (500) for manufacturing thereof. The fire-resistant battery pack (100) comprises of a plurality of cells (204) disposed in an external casing (202a, 202b). where a first material (206) configured to cover a first pre-defined surface area of each cell of the plurality of cells (204) and a second material (208) configured to cover a second pre-defined surface area of each cell of the plurality of cells (204) is added to the battery pack (100). The first material is a thermally insulative material while the second material is a thermally conductive material. The disclosed configuration of the battery pack (100) ensures effective thermal management in the battery pack (100) by improved heat radiation, improved venting, and preventing of heat propagation between adjacent cells of the battery pack (100).
Resumen de: WO2025045658A1
The invention relates to a conveying device (10) comprising at least one conveying track (11), which extends along a conveying path (12), and at least one workpiece carrier (20), which can be frictionally driven along the conveying path (12) by drive means (15) of the conveying track (11). According to the invention, a positive and a negative workpiece carrier contact (32; 33) are arranged on the bottom side (22) of the workpiece carrier (20), battery units (40) to be discharged being connected between the positive and the negative workpiece carrier contact, wherein an associated pair (36) of a positive and a negative conveying track contact (34; 35), which pair is arranged on the conveying track (11), is connected to a discharge device (50) in order to discharge the battery units (40).
Resumen de: EP4773239A1
The present invention relates to a positive electrode active material for a lithium secondary battery and a method for manufacturing the same. More specifically, the present invention relates to a positive electrode active material for a lithium secondary battery, and a method for manufacturing the same, in which production yield and production efficiency are improved by applying a low-temperature first calcination at 400°C or lower to a precursor mixture for the positive electrode active material.
Resumen de: EP4773220A1
Provided is a dispersant composition for an electrochemical device with which it is possible to form an electrode for an electrochemical device that can reduce IV resistance of an electrochemical device. The dispersant composition for an electrochemical device contains a polymer A that includes a nitrile group-containing monomer unit and an alkylene structural unit having a carbon number of 4 or more. When the weight-average molecular weight of the polymer A is taken to be MA and the viscosity measured at a temperature of 25°C for a polymer solution obtained by adding N-methyl-2-pyrrolidone to the polymer A such that the concentration of the polymer A is 10 mass% is taken to be ηA (mPa·s), a value FA calculated by FA = (ηA/MA) × 1,000 is not less than 0.1 and not more than 9.0. When the transverse relaxation time measured at a temperature of 25°C for N-methyl-2-pyrrolidone is taken to be T2S (ms) and the transverse relaxation time measured at a temperature of 25°C for a polymer solution obtained by adding N-methyl-2-pyrrolidone to the polymer A such that the concentration of the polymer A is 1 mass% is taken to be T2c (ms), a T2 ratio calculated by T2 ratio = T2S/T2C is not less than 1.1 and not more than 1.8.
Resumen de: EP4773285A1
0001 An object of the present invention is to provide a means for obtaining an all-solid-state battery excellent in both capacity and rapid charge characteristics. 0002 The present invention provides a method for manufacturing an all-solid-state battery in which a power generating element is sealed inside a battery outer casing body, the power generating element including: a positive electrode including a positive electrode active material layer containing a positive electrode active material and a first solid electrolyte; a negative electrode including a negative electrode active material layer containing a negative electrode active material; and a solid electrolyte layer interposed between the positive electrode and the negative electrode and containing a second solid electrolyte, the manufacturing method including: a chemical conversion step including a step of initially charging the power generating element in an inert gas atmosphere; and a step of sealing the power generating element inside the battery outer casing body under reduced pressure after the chemical conversion step.
Resumen de: EP4773195A1
An electrode for a non-aqueous secondary battery, comprising a current collector layer, an electroconductive adhesion layer, and an electrode mixture layer in this order, wherein:the electrode mixture layer contains an electrode active material and a binder;the electroconductive adhesion layer includes a first adhesion layer that is disposed on the current collector layer and a second adhesion layer that is disposed so as to partially cover the first adhesion layer and is in contact with the electrode mixture layer;the first adhesion layer contains electroconductive particles and a binder; andthe second adhesion layer contains electroconductive particles and a binder and has a containing ratio of the electroconductive particles lower than that in the first adhesion layer or the second adhesion layer contains a binder and no electroconductive particles. A method for manufacturing the electrode for a non-aqueous secondary battery and a non-aqueous secondary battery are also provided.
Resumen de: WO2025045793A1
The invention relates to a method for producing an electrode layer with a separator layer, to an electrode layer with separator layer, and to an electrode layer-separator layer-counter electrode layer stack. Also provided are an electrochemical cell, an electrostatic cell or combination thereof, and a use thereof is proposed. These products can be provided in a simple, quick and economical manner. The ion conductivity between the electrode layer and the separator layer and, if relevant, also to the counter electrode layer is excellent. The provided products can be produced easily and quickly and are distinguished by a high electrical performance, a high cycle stability, a low safety risk and a low risk of irreparable damage.
Resumen de: EP4773293A1
0001 Objects of the invention are to provide an electrolytic solution, an electrolyte composition, and electrochemical element, which can attain an enhanced transport number of ions involved in energy conversion. The electrolytic solution contains a non-aqueous solvent and exhibits a difference between a loss modulus at 25°C and a storage modulus at 25°C of 2,440 Pa or more and 6,720 Pa or less. The electrolytic solution preferably has a loss modulus of 5,400 Pa or higher, and a storage modulus of 0.34 Pa or lower. The electrolyte composition contains the electrolytic solution and particles of an oxide solid electrolyte. The electrochemical element has an electrode containing the electrolytic solution.
Resumen de: EP4773460A1
0001 A power storage system is composed of units (13) each including a storage battery group (30) connected between a high voltage side terminal (28A) and a low voltage side terminal (28B), a first current limiting device (36), a first load switch (41), and a bypass circuit (48). The first current limiting device (36) functions to limit a current flowing between the high voltage side terminal (28A) and the storage battery group (30). The first load switch (41) is connected in series with the storage battery group (30) and the first current limiting device (36). The bypass circuit (48) bypasses between the high voltage side terminal (28A) and the low voltage side terminal (28B). The bypass switch (49) switches the bypass circuit (48) between conductive and non-conductive.
Resumen de: EP4773421A1
0001 To obtain a battery that uses an electrode terminal formed by friction pressure welding while maintaining or improving sealing properties. 0002 A battery 1 includes: a charging/discharging body 100; an exterior body (lid 420) that houses the charging/discharging body and has a through-hole (negative electrode side insertion hole 420b) formed therein; a sealing body (negative electrode side gasket 630) that is provided in the exterior body; and an electrode terminal (negative electrode terminal 320) that is provided in the sealing body. The electrode terminal includes: a first portion (insertion portion 322) that is inserted into the through-hole of the exterior body and is indirectly or directly joined to the charging/discharging body; and a second portion (main body portion 321) that is exposed to the outside of the exterior body, is lower in rigidity than the first portion, and is joined to a bus bar or an electric device. The first portion and the second portion are joined to each other by friction pressure welding. The second portion includes a projecting portion (raised portion 320e or cut molded portion 320f) projecting toward the sealing body while annularly surrounding an outer circumferential surface 322b of the first portion at a joint part with the first portion. The projecting portion is in contact with the sealing body.
Resumen de: EP4773222A1
A coated active material (10) according to the present disclosure includes: a positive electrode active material; and an apatite-containing particle layer (13) coating at least a portion of a surface of a particle of the positive electrode active material, the apatite-containing particle layer (13) including an apatite-containing particle (12). A positive electrode according to the present disclosure includes: a positive electrode current collector; and a positive electrode active material layer supported on the positive electrode current collector, wherein the positive electrode active material layer includes the coated active material (10) according to the present disclosure.
Resumen de: US2025079510A1
Disclosed is an anode assembly comprising an anode layer and a solid electrolyte layer prepared by directly coating a slurry comprising a solid electrolyte and a binder on the anode layer. The interfacial resistance between the anode layer and the solid electrolyte membrane is lower than that of an assembly prepared without direct coating. In one embodiment, the solid electrolyte is a sulfide electrolyte. In one embodiment, the binder is a nonfibrillizable binder. In one embodiment, the electrolyte membrane does not comprise a scaffold layer such as non-woven fabric.
Resumen de: WO2025046186A1
The invention relates to an electrolyte comprising: – an ionic liquid comprising: o a bis(fluorosulphonyl)imide anion, o and at least one phosphonium cation of formula (PR1R2R3R4)+, wherein each group R1, R2, R3 and R4 independently represents a linear or branched, saturated or unsaturated alkyl group comprising 1 to 14 carbon atoms, or an alkyl-aryl group comprising 7 to 14 carbon atoms, or an aryl group comprising 6 to 10 carbon atoms, the groups R1, R2, R3 and R4 possibly optionally comprising one or more heteroatoms; and – a lithium bis(fluorosulphonyl)imide salt; wherein the sulphamate ion content is 0.1-3000 ppm by weight.
Resumen de: EP4773194A1
The purpose of the present invention is to provide an electrode (11) and a power storage (10) capable of reducing charge transfer resistance. The electrode contains particles (20) of a solid electrolyte. The ratio of the particles is 0.1-30 vol%, and the average of the distance (D) between the particles in a range (18) in which six or more particles appear in a width of 400 µm2 on the cross-section of the electrode is 1 µm or more. The average of the equivalent circle diameters of the particles appearing in the cross section is preferably 10 µm or less, and the average of the equivalent circle diameters of an active material (19) appearing in the cross section is preferably 5 µm or more. The power storage device includes the electrode.
Nº publicación: EP4773294A1 08/07/2026
Solicitante:
SK ON CO LTD [KR]
SK On Co., Ltd.
Resumen de: EP4773294A1
0001 An electrolyte for a rechargeable lithium battery, according to embodiments of the present disclosure, comprises: a lithium salt; an organic solvent; and a fluorine-based additive of a specific chemical formula. The rechargeable lithium battery comprises: an electrode assembly which comprises a positive electrode comprising a lithium-transition metal oxide having a lithium molar ratio of 1.1 or more, and a negative electrode facing the positive electrode; and an electrolyte which is impregnated in the electrode assembly and comprises a fluorine-based additive of a specific chemical formula. Through the fluorine-based additive, electrolyte side reactions can be prevented, and the high-voltage charging stability and high-temperature lifespan characteristics of a positive electrode active material can be improved.
BOPI
Sede Electrónica
