Alerta

SECONDARY BATTERY

Resumen de: EP4542708A1

In a secondary battery including an electrolyte layer containing a sulfide solid electrolyte, the electrolyte layer has both high voltage resistance and high ionic conductivity. The secondary battery of the present disclosure includes a positive electrode, an electrolyte layer, and a negative electrode, wherein the electrolyte layer contains a sulfide solid electrolyte and a perfluoropolyether represented by formula (1) below:        E1-Rf1-R-O-Rf2-E2     (1)where Rf1 and Rf2 are each independently a C1-16 divalent alkylene group which may be substituted with one or more fluorine atoms, E1 and E2 are each independently a monovalent group selected from the group consisting of a fluorine group, a hydrogen group, a hydroxyl group, an aldehyde group, a carboxylic acid group, a C1-10 alkyl ester group, an amide group which may have one or more substituents, and an amino group which may have one or more substituents, and R is a divalent fluoropolyether group.

SECONDARY BATTERY

Resumen de: EP4542686A1

Disclosed is a technology for reducing the resistance of a secondary battery including a sulfide solid electrolyte. The secondary battery of the present disclosure includes a first electrode, an electrolyte layer, and a second electrode, wherein at least one of the first electrode and the electrolyte layer contains a sulfide solid electrolyte, and the first electrode contains a perfluoropolyether represented:        E1-Rf1-R-O-Rf2-E2     (1)where Rf1 and Rf2 are each independently a C1-16 divalent alkylene group which may be substituted with one or more fluorine atoms, E1 and E2 are each independently a monovalent group selected from the group consisting of a fluorine group, a hydrogen group, a hydroxyl group, an aldehyde group, a carboxylic acid group, a C1-10 alkyl ester group, an amide group which may have one or more substituents, and an amino group which may have one or more substituents, and R is a divalent fluoropolyether group.

N-VINYL LACTAM COPOLYMER AND COMPOSITION

Resumen de: EP4541828A1

The present invention aims to provide an N-vinyl lactam copolymer and a composition each retaining an excellent ability to disperse carbon and excellent solubility in water but less dissolving in a carbonate electrolyte solvent. The present invention relates to an N-vinyl lactam copolymer containing: a structural unit (A) derived from an acid group-containing monomer salt; and a structural unit (B) derived from an N-vinyl lactam monomer, an amount of the structural unit (A) being 30% by mass or less based on a total amount of the structural unit (A) and the structural unit (B), the total amount being taken as 100% by mass, the N-vinyl lactam copolymer having a weight average molecular weight of 1,000 or more and 100,000 or less and a K value of 12 to 60 as determined by the Fikentscher method.

RECYCLED POSITIVE ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, METHOD FOR USING RECYCLED POSITIVE ELECTRODE MATERIAL, RECYCLED POSITIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4542682A1

There is provided a recycled positive-electrode material that includes: lithium, nickel, cobalt, and manganese; aluminum in an amount of 0.3% by mass or greater and 3% by mass or less; copper, iron, or both in an amount of less than 1% by mass.

COPOLYMER FOR SEPARATOR AND SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4541827A1

The present invention relates to a copolymer, and a slurry composition, a separator, and a secondary battery that comprise same, wherein the copolymer comprises, based on 100 wt% of the total weight of the copolymer, 15 wt% or less of a vinylacetate monomer unit, 10-55 wt% of an acrylate-based monomer unit, and 1-10 wt% of an acrylic acid-based monomer unit bound with at least one selected from the group consisting of an alkali metal and an acetate salt compound comprising an alkali metal.

LITHIUM-COBALT-BASED COMPOSITE OXIDE PARTICLES AND METHOD FOR PRODUCING SAME, AND LITHIUM-COBALT-BASED COMPOSITE OXIDE PARTICLE COMPOSITION AND METHOD FOR PRODUCING SAME

Resumen de: EP4541771A1

Disclosed herein are lithium-cobalt-based composite oxide particles obtained by a solid-phase process and capable of reducing the weight and thickness of a positive electrode material when used as a positive electrode active material for non-aqueous lithium secondary batteries or all-solid-state batteries and a method for producing the same. The lithium-cobalt-based composite oxide particles are formed of a lithium-cobalt-based composite oxide having an average primary particle diameter of 0.50 µm or less and show a weight loss on heating at 850°C of 1.5 mass% or less.

ALKALI METAL ION CONDUCTOR, ALKALI METAL ION BATTERY, AND ALKALI METAL ION CONDUCTOR PRODUCTION METHOD

Resumen de: EP4542714A1

Disclosed is an alkali metal ion conductor which behaves as a liquid at a low temperature. The alkali metal ion conductor of the present disclosure is an alkali metal ion conductor comprising a salt, wherein the salt comprises a first cation, a second cation, and a first anion, the first cation is a tetraalkylammonium ion having an alkyl chain length of 5 or more, the second cation is an alkali metal ion, and the first anion is at least one anion selected from the group consisting of a bromine ion, a chlorine ion, and a hydrogen sulfate ion.

LITHIUM ION CONDUCTOR, LITHIUM-ION BATTERY, AND LITHIUM ION CONDUCTOR MANUFACTURING METHOD

Resumen de: EP4542582A1

Disclosed is a technology which enables minimization of deterioration of charge/discharge characteristics when cracks occur in an electrolyte layer or electrode of a lithium-ion battery. The technology of the present disclosure includes a specific lithium-ion conductor in the electrolyte layer or electrode of the lithium-ion battery. The lithium-ion conductor of the disclosure contains a complex halide represented by LiGaX4 (where X is one or more halogens).

SULFIDE-BASED SOLID ELECTROLYTE POWDER, METHOD FOR PRODUCING SULFIDE-BASED SOLID ELECTROLYTE POWDER, SULFIDE-BASED SOLID ELECTROLYTE LAYER, AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4542583A1

The present invention relates to: a sulfide-based solid electrolyte powder that generates photoluminescence at a wavelength of 660 to 750 nm; a method for producing the same; a sulfide-based solid electrolyte layer containing the sulfide-based solid electrolyte powder; and a lithium-ion secondary battery.

METAL WELDED STRUCTURE, BATTERY PACK USING SAME, AND BATTERY PACK PRODUCTION METHOD

Resumen de: EP4542759A1

In a vehicle battery pack, for connecting a bus bar and a voltage detection terminal, laser welding having high reliability is possible.In order to realize this, the present invention has the following configuration. That is, there is provided a metal welded structure which is a welded structure including a first metal member (16), a second metal member (14) having a part overlapping with the first metal member (16), and a welded part (19) formed in the overlapping part, wherein the welded part (19) has a molten part formed by melting through the second metal member (14) in a thickness direction to the inside of the first metal member (16), when viewed in the overlapping direction, the welded part has a U-shape including a first linear part and a second linear part (20) extending from both sides of the first linear part in a longitudinal direction to respective ends, and the width D1 between two end points of the welded part (20) and the bead width W of the welded part (20) have a relationship of D1/W≥2.

SECONDARY BATTERY AND SECONDARY BATTERY MANUFACTURING METHOD

Resumen de: EP4542719A1

The purpose of the present invention is to provide a secondary battery having a high energy density and excellent cycle characteristics, in which the secondary battery has a configuration making it possible to be assembled in a short time. The secondary battery of the present invention includes a laminate formed by winding a sheet having a negative electrode and separators disposed on both surfaces of the negative electrode so that the sheet is folded back a plurality of times; and a plurality of positive electrodes that are respectively disposed in each gap formed between the separators facing each other in the laminate.

POSITIVE ELECTRODE, SECONDARY BATTERY, AND BATTERY PACK

Resumen de: EP4542663A1

According to one embodiment, a positive electrode is provided. The positive electrode includes a positive electrode active material including a lithium-nickel-cobalt-manganese composite oxide represented by general formula Lia-bNi1-x-y-zCoxMnyMzO2. A ratio Co/Mn in the lithium-nickel-cobalt-manganese composite oxide is 1.0 or less. In the above general formula, 0.9 < a ≤ 1.25, 0 < x < 0.3, 0 < y < 0.3, 0 < z < 0.2, and x+y+z < 1. For the positive electrode, entropy change ΔS0≤b<0.1 when 0 ≤ b < 0.1 satisfies the following formula (1), and entropy change ΔS0.5

LITHIUM ION BATTERY

Resumen de: EP4542710A1

To address the issue that the existing lithium ion battery with positive electrode containing manganese impacts battery performance, the application provides a lithium ion battery, which includes a positive electrode, a negative electrode, a non-aqueous electrolyte and a separator, and the separator is positioned between the positive electrode and the negative electrode, the positive electrode includes a positive electrode material layer, the positive electrode material layer includes a lithium manganese-based positive electrode active material, the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive, and the additive includes a compound represented by structural formula 1:the lithium ion battery meets the following requirements:0.1≤q*m/p≤20; and 20≤q≤60,0.01≤m≤2,1.5≤p≤5;The lithium ion battery provided by the invention can significantly reduce the ion exchange between Mn<2+> and lithium in the negative electrode, prevent manganese from damaging the negative electrode, and increase the stability of the negative electrode, thereby improving the safety performance of the lithium ion battery while ensuring its high energy density and cycle performance.

LITHIUM-SALT-FREE COMPOSITE SOLID ELECTROLYTE MEMBRANE AND PREPARATION METHOD THEREFOR

Resumen de: EP4542707A1

A lithium salt-free composite solid electrolyte membrane and a preparation method thereof are provided. The composition of the lithium salt-free composite solid electrolyte membrane includes: micro-nanoscale garnet-type solid electrolyte and polymer; where a mass ratio of the micro-nanoscale garnet-type solid electrolyte to the polymer is (60-100) : (5-40); a particle size of the micro-nanoscale garnet-type solid electrolyte is 100 nm - 2 µm. The disclosure also provides a preparation method for the lithium salt-free composite solid electrolyte membrane. The lithium salt-free composite solid electrolyte membrane prepared by the disclosure has controllable morphology and thickness, and does not need to add lithium salt and be equipped with anhydrous and inert environment atmosphere, so that the production cost can be significantly reduced, and large-scale production is easy.

BATTERY PACK

Resumen de: EP4542747A1

Provided is a battery pack. The battery pack includes multiple battery cells, a casing, and multiple battery modules. A support beam is disposed in the casing. The support beam divides the interior space of the casing into multiple compartments. A connecting channel is formed between the bottom of the support beam and the inner bottom face of the casing. The connecting channel connects two adjacent compartments. Each battery module is disposed in a corresponding compartment.

SECONDARY BATTERY

Resumen de: EP4542669A1

A secondary battery belonging to the technical field of batteries is provided. The secondary batter includes a positive electrode sheet, a separator, and a negative electrode sheet. The positive electrode sheet includes a positive electrode material including a first active material and a second active material. The first active material is a layered structure material, and the second active material is an olivine structure material. A mass ratio of the second active material to a sum of masses of the first active material and the second active material is 5 wt% to 30 wt%. A discharge curve of the secondary battery has a first voltage platform and a second voltage platform.

BATTERY FAULT DIAGNOSIS METHOD AND SERVER FOR PROVIDING SAME METHOD

Resumen de: EP4542245A1

The present invention provides a battery fault diagnosis method and a server providing the method, and the server of the present invention diagnoses a battery defect by setting a reference value reflecting a change in the internal resistance value of the battery at each diagnosis time point for diagnosing a defect of the battery, thereby improving the accuracy of the diagnosis. In addition, a problem of erroneously diagnosing an external environmental difference as a fault of the battery itself can be solved by configuring a reference value on the basis of a plurality of internal resistance values in an environment similar to that of the current diagnosis time, so that the accuracy of diagnosis can be increased.

BATTERY SYSTEM, COOLER AND METHOD FOR MONITORING A BATTERY SYSTEM

Resumen de: EP4542725A1

The present disclosure refers to a battery system (100), including a battery pack (10) including a housing (11) and a plurality of battery cells (12) accommodated within the housing (11), and a cooler (20) thermally connected to the battery cells (12) and an underbody protection structure (30). The cooler (20) is arranged between the underbody protection structure (30) and the battery pack (10). The cooler (20) includes at least one cooling channel (22) and at least one pressure detection channel (24) separated from the cooling channel (22) and arranged inside the cooler (20). The battery back further includes a pressure detection device (40) with a pressure sensor (42) fluidly connected to the pressure detection channel (24) and adapted to detect an underbody contact or impact event by monitoring the pressure in the pressure detection channel (24) by the pressure sensor (42).

BATTERY CELL WITH ELECTRODE STACK AND METHOD FOR MANUFACTURING A BATTERY CELL

Resumen de: EP4542696A1

A first aspect of this disclosure is related to a battery cell, comprising:- a housing ;- a electrode stack arranged in the housing with a plurality of electrodes of two different types, anodes and cathodes , each of which having a tab; andwherein the tabs of one type are formed such that they comprise a side part that covers an area on at least one side of the electrode stack ;- at least one contact element that is contacted to the side part of the tabs of the one type of the electrodes.

SILICON ANODE MULTILAYER FOR ELECTROCHEMICAL CELLS

Resumen de: US2024021798A1

Provided herein is a negative electrode or anode for an electrochemical cell having two or more layers. Each layer may include different concentrations of an anode active material to provide improved electrical and physical qualities as compared to a mono-layer anode.

BATTERY HOUSING

Resumen de: EP4542745A1

A unit for a security system is provided. The unit comprises a battery housing (100), comprising a casing (101). The casing (101) comprises a bottom portion, a top portion (103) and at least one wall section forming a battery compartment. The battery housing (100) further comprises a cover (106) releasably connectable to the casing (101). The battery housing (100) further comprises a battery unit (108) removably arrangeable in the battery compartment (105), and displacement means (107) configured to displace the battery unit (108) between a first position and a second position in the battery compartment.

ALL-SOLID-STATE SECONDARY BATTERY

Resumen de: EP4542706A1

Provided is an all-solid-state secondary battery capable of developing good cycle characteristics even when used for a certain period at high temperatures of 150°C and above. An all-solid-state secondary battery 1 with a solid electrolyte layer 2, a positive electrode layer 3, and a negative electrode layer 4 includes: a first current collector layer 5 provided on a principal surface of the positive electrode layer 2 located on a side thereof opposite to a side thereof where the solid electrolyte layer 2 is disposed; a second current collector layer 6 provided on a principal surface of the negative electrode layer 4 located on a side thereof opposite to a side thereof where the solid electrolyte layer 2 is disposed; and a sealing layer 7 provided between an outer peripheral edge 5a of the first current collector layer 5 and an outer peripheral edge 6a of the second current collector layer 6 to seal the positive electrode layer 3 and the negative electrode layer 4, wherein an internal space 8 enclosed by the first current collector layer 5, the second current collector layer 6, and the sealing layer 7 is vacuum.

METHOD FOR RECOVERING METALS

Resumen de: WO2024014541A1

Provided is a method for recovering metals, which can produce a lithium hydroxide solution from a metal-containing solution and appropriately process the impurities separated at that time. The method for recovering metals from battery powder of lithium ion battery waste includes: an acid leaching step of leaching the metals in the battery powder with an acid to obtain a metal-containing solution containing lithium ions and other metal ions including manganese ions and/or aluminum ions; a metal separation step of separating the other metal ions from the metal-containing solution, the metal separation step comprising extraction of manganese ions and/or aluminum ions from the metal-containing solution into a solvent and, after the extraction, stripping of manganese ions and/or aluminum ions from the solvent into a stripping solution; and, after the metal separation step, an electrodialysis step of subjecting the metal-containing solution containing lithium ions and fluoride ions to electrodialysis using a bipolar membrane to obtain a lithium hydroxide solution and an acidic solution containing fluoride ions, wherein the acidic solution obtained in the electrodialysis step is used as at least part of the stripping solution in the metal separation step.

METHOD FOR RECOVERING METALS

Resumen de: WO2024014522A1

Provided is a method for recovering metals, which can produce a lithium hydroxide solution from a metal-containing solution and appropriately process the impurities separated at that time. The method for recovering metals from battery powder of lithium ion battery waste includes: an acid leaching step of leaching the metals in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing lithium ions and other metal ions; a metal separation step of separating the other metal ions from the metal-containing solution; and, after the metal separation step, an electrodialysis step of subjecting the metal-containing solution containing lithium ions and fluoride ions as impurities to electrodialysis using a bipolar membrane to obtain a lithium hydroxide solution and an acidic solution comprising fluoride ions, wherein the acidic solution obtained in the electrodialysis step is mixed with the acidic leaching solution so that the acidic leaching solution contains calcium in the acidic leaching step, and the fluoride ions are precipitated by the calcium.

METHOD FOR REMOVING ALUMINUM AND METHOD FOR RECOVERING METALS

Nº publicación: EP4540432A1 23/04/2025

Solicitante:

JX METALS CIRCULAR SOLUTIONS CO LTD [JP]
JX Metals Circular Solutions Co., Ltd

Resumen de: WO2024014521A1

Provided are a method for removing aluminum which can effectively remove aluminum, and a method for recovering metals. A method for removing aluminum includes: a leaching step of bringing a raw material, the raw material having battery powder, the battery powder being obtained from lithium ion battery waste and comprising at least aluminum and nickel and/or cobalt, into contact with an acidic leaching solution to leach the battery powder to obtain a leached solution containing at least aluminum ions and nickel ions and/or cobalt ions; and a neutralization step of using the leached solution as a metal-containing solution, increasing a pH of the metal-containing solution and separating a neutralized residue to obtain a neutralized solution, wherein a molar ratio of fluorine to aluminum (F/Al molar ratio) of the raw material is 1.3 or more, and wherein, in the neutralization step, the metal-containing solution contains calcium and fluorine, a molar ratio of calcium to aluminum ions (Ca/Al molar ratio) in the metal-containing solution is 0.2 or more, the aluminum ions in the metal-containing solution are precipitated and contained in the neutralized residue together with calcium and fluorine.