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1166
results.
Updated on
09/08/2025 [07:24:00]
Results 450 to 475 of 1166
Absstract of: EP4597700A1
The present invention suppresses a temperature rise of a battery cell due to a bus bar plate connected to first and second lead plates. In battery system 1 in which a plurality of battery cells 4A included in battery block 4 are connected in series as well as in parallel by connecting the end-face electrodes of battery cells 4A with first lead plate 7A and second lead plate 7B that are connected by bus bar plates 3, a temperature rise of a specific battery cell 4A caused by bus bar plates 3 is suppressed by ensuring cooling gap 5 between bus bar plates 3 and battery block 4, and enabling the air in cooling gap 5 to rise quickly when the temperature of bus bar plate 3 rises due to the Joule heating of the load current.
Absstract of: EP4597681A1
A method of easily recycling power supply devices is provided. Each power supply device includes battery blocks (10) and a circuit board (30) accommodated in a housing (20), each of the battery blocks (10) including secondary battery cells. The method includes: measuring resistance values based on current and voltage values of the devices before and after starting one of charging and discharging of power supply devices (100) for a predetermined time not longer than 10 seconds and based on current and voltage values after finishing the one of charging and discharging of the devices; grouping one or more power supply devices (10), the one or more power supply devices each having a difference between the resistance values which is within a predetermined range; taking out the battery blocks (10) accommodated in the housing (20) by disassembling the devices; and reproducing, according to a result of the grouping, a power supply device: by constituting a new power supply device (100') by accommodating the battery blocks in a new housing; or by reproducing a power supply device by combining a new battery block with a separated housing (20) and a separated circuit board (30).
Absstract of: EP4597633A1
A positive electrode for a nonaqueous electrolyte secondary battery includes a positive electrode mixture containing a positive electrode active material, and a binder having a polymer structure derived from vinylidene fluoride. An ATR-IR spectrum of the positive electrode mixture has an α peak belonging to an α-type crystal in the polymer structure in a wavelength region of 760 to 764 cm<-1>, and a β peak belonging to a β-type crystal in the polymer structure in a wavelength region of 838 to 842 cm<-1>. A maximum absorption intensity H(α) of the α peak and a maximum absorption intensity H(β) of the β peak satisfy 0.2 ≤ H(α)/H(β) ≤ 5. With this configuration, in the case of using a ferroelectric, it is possible to improve the capacity retention rate while maintaining the capacity of the nonaqueous electrolyte secondary battery.
Absstract of: EP4597632A1
A positive electrode 13 for secondary battery of the present disclosure includes a positive electrode current collector 11 and a positive electrode active material layer 12 supported on the positive electrode current collector 11, where the positive electrode active material layer 12 includes a positive electrode active material and polyvinyl alcohol modified with a phosphorus compound. A method for manufacturing the positive electrode 13 for secondary battery includes: preparing a polymer solution including polyvinyl alcohol, a phosphorus compound, and a solvent; preparing a positive electrode slurry including the polymer solution and the positive electrode active material; and applying the positive electrode slurry to the positive electrode current collector 11 to form the positive electrode active material layer.
Absstract of: WO2024069291A1
An electrochemical cells and methods of making the same are disclosed. An electrochemical cell may include a cell housing and a cell core disposed in the cell housing. The cell body may extend along a longitudinal axis from a distal end to a proximal end. The cell core may include a cathode electrode, an anode electrode, and a separator disposed between the cathode electrode and the anode electrode. The cathode electrode may define a plurality of cathode windings around the longitudinal axis. Each cathode winding may include a porous conductive strip and a cathode active material disposed on the porous conductive strip. The anode electrode may be disposed around the cathode electrode.
Absstract of: WO2024067924A1
The present invention relates to a solid-state battery system (1, 2), having at least one solid-state battery (1) with a preferred size-changing direction (A), and having at least one solid-state battery holder (2) which is designed to counteract the size change of the solid-state battery (1) in the size-changing direction (A) by means of at least one variable fluid volume (23).
Absstract of: WO2024068158A1
An electrical energy storage device (2, 2A-2C) for an implantable medical stimulation device (1) comprises a housing (20), a first electrical electrode and a second electrical electrode having different electrical polarities, one of the first electrical electrode and the second electrical electrode being formed by an electrode element (21) having an electrically conductive electrode body (210) arranged in the housing (20), and a current collector arrangement (22) electrically connected to the electrode element (20). The current collector arrangement (22) comprises a first current collector element (220) forming a first current collection section (222) having a first free end (227) and a second current collector element (221) forming a second current collection section (223) having a second free end (228), wherein the first current collection section (222) and the second current collection section (223) each extend in the electrode body (210) or along a surface of the electrode body (210) such that the first free end (227) of the first current collector element (220) and the second free end (228) of the second current collector element (221) are arranged at a distance with respect to one another in or on the electrode body (210).
Absstract of: US2024107716A1
A thermal management system includes a high-pressure (HP) container, a low-pressure (LP) container in fluid communication with the HP container and having a fluid pressure less than the HP container, and a two-phase working fluid partially in the HP container and partially in the LP container. The two-phase working fluid has a vapor phase and a liquid phase. A pump is configured to move the working fluid through the system, and a condenser is configured to condense the vapor phase of the working fluid into the liquid phase.
Absstract of: WO2024072238A1
A method for recovering metals from black mass from recycling of spent lithium-ion batteries, characterized in that it comprises the following steps: a) leaching the black mass with sulfuric acid (VI) with the addition of H2O2 in order to obtain an extract comprising metals; b) adding iron dust to the extract in order to cement copper and then separating the precipitated copper from the extract; c) adding a manganese oxidizing agent to the extract and then separating the resulting MnCh from the extract; d) alkalizing the extract in order to precipitate iron (III) hydroxide or iron (III) oxyhydroxide or a mixture thereof and then separating the resulting precipitate from the extract; e) alkalizing the extract in order to precipitate nickel (II) hydroxide and cobalt (II) hydroxide, or nickel (II) carbonate and cobalt (II) carbonate, separating the resulting precipitate from the extract to obtain a lithium-containing solution, solubilizing the separated precipitate in hydrochloric acid and then selectively separating nickel ions and cobalt ions from the obtained solution in a column filled with ion exchange resin, wherein the elution of nickel ions is carried out with a hydrochloric acid solution, and the elution of cobalt ions is carried out with water, to obtain a nickel ions solution and a cobalt ions solution, followed by adding oxalate solution to the obtained nickel ion solution and cobalt ion solution in order to precipitate nickel oxalate and cobalt oxalate, and then sep
Absstract of: WO2024072239A1
The invention relates to a method for recycling of lithium-ion cells and batteries, comprising the following steps: a) grinding lithium-ion cells and/or batteries in a grinding device sprayed with an organic solvent and in an inert gas protective atmosphere to form a heterogeneous mixture comprising ground lithium-ion cells and/or batteries and the organic solvent; b) mechanically stirring the heterogeneous mixture obtained in step a) to form a suspension comprising a coarse fraction, black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and binders are dissolved; c) separating the suspension obtained in step b) into the coarse fraction and a suspension of the black mass in the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved; and d) separating the suspension obtained in step c) into the black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved.
Absstract of: CN119948674A
A double-walled enclosure for thermal management of a battery pack, the double-walled enclosure comprising an inner hollow structure and an outer hollow structure, the inner hollow structure having an inner surface and an outer surface; one or more battery modules are positioned in the inner hollow structure; the outer hollow structure has an inner surface wherein the outer surface of the inner hollow structure is either in contact with or forms at least one channel with the inner surface of the outer hollow structure through which the heat transfer fluid flows. The inner hollow structure is formed from a polymeric material such that the inner hollow structure is in thermal contact with the heat transfer fluid to provide thermal management of the battery pack.
Absstract of: CN119948673A
A cooling plate for battery thermal management in a battery pack and a process of forming such a battery pack are provided. The cooling plate is made of a composite material, and the cooling plate is of a hollow structure. The composite material comprises a heat-conducting filler, and the heat-conducting filler is dispersed in a polymer matrix. The hollow structure has an outer wall having a thickness in a range of about 0.3 mm (mm) to about 2.5 mm. The hollow structure comprises a top section, a bottom section and one or more channels, and the top section is in thermal contact with the at least one battery; the bottom section and the top section are integrally formed; one or more channels are located between the top section and the bottom section, the one or more channels configured to allow fluid flow through the one or more channels to provide thermal management of the battery.
Absstract of: CN120077492A
A grinding process includes the step of combining FePO4, Li2CO3, water, a carbon source, and an abrasive to form a slurry, the abrasive of the slurry having structure (I) wherein n of structure (I) is from 1 to 10, and R1 is selected from the group consisting of hydrogen, an alkylphenyl group, a linear or branched primary or secondary alkyl chain, and R2 is selected from the group consisting of hydrogen, a methyl group, an ethyl group, or a combination thereof; and grinding the slurry.
Absstract of: PL448970A1
Przedmiotem zgłoszenia jest masa aktywna elektrod akumulatora kwasowo-ołowiowego zawierająca proszek ołowiu: PbO+Pb, kwas siarkowy(VI), wodę demineralizowaną, dla elektrod ujemnych także ekspander oraz materiał włóknisty, który stanowią biodegradowalne włókna pochodzenia roślinnego, to jest włókna lniane lub zwierzęcego, to jest włókna wełniane, przy czym włókna te posiadają długość 1 - 3 mm, korzystnie 1,5 mm i stanowią 0,1% - 0,3%, korzystnie 0,18%±0,03% ilości masowej całej masy aktywnej elektrody.
Absstract of: FI20245097A1
A manufacturing arrangement to rechargeable battery cell formation and aging processes according to the invention has rooms (2, 3, 4) for the formation process and for the aging process. The arrangement has also testing devices (8A, 8B, 8C, 8D, 8E, 8F) The rooms and test devices being situated on a floor (9). The arrangement further comprises a mezzanine floor (10) above the floor. On the mezzanine floor there is at least one linear robot system (11). The arrangement further comprises conveyors (14) on the mezzanine floor (10). Each of said rooms (2, 3, 4) has interfaces (15) being in a functional connection to at least one of the conveyors (14) in order to transport the rechargeable battery cells. The mezzanine floor has also openings (16). On the floor (9), the arrangement further comprises elevator conveyors (17) being in functional connection with the opening (16) in order to transfer the rechargeable battery cells from the mezzanine floor to the floor.
Absstract of: MX2025008036A
The present invention relates to a negative electrode composition, a negative electrode comprising same, a lithium secondary battery, a battery module, and a battery pack, the negative electrode composition comprising a negative electrode active material comprising a carbon-based active material and a silicon-based active material including at least one among a silicon carbon composite and a silicon oxide, wherein the carbon-based active material includes natural graphite and artificial graphite, and when powder resistance is measured at a pressure of 800 kgf/cm<sup>2</sup>, rolling density decreases in the order of the natural graphite > the artificial graphite > the silicon-based active material, and electrical conductivity decreases in the order of the natural graphite > the artificial graphite > the silicon-based active material.
Absstract of: MX2025008181A
Provided is a composition for electrode formation with which it is possible to suppress thickening and gelation, improve shelf life and increase the concentration of solid matter by a simple method. The composition for electrode formation contains a positive electrode active substance, a binder, a solvent, and a heterocyclic compound, where the heterocyclic compound has a nitrogen-containing 5-membered ring, does not have an oxygen atom in the 5-membered ring, and has a carbonyl structure on the 5-membered ring.
Absstract of: MX2025008182A
The present invention provides, as a composition for electrode formation having improved storage stability and higher solid content concentration, while suppressing thickening and gelation by a simple method, a composition for electrode formation, the composition containing a stabilization component, a positive electrode active material, a binder and a solvent, wherein the stabilization component contains: (first component) a heterocycle-containing compound which has a reactive group and a nitrogen-containing five-membered ring without containing an oxygen atom in the nitrogen-containing five-membered ring, and (second component) a compound which is chemically reactive with the heterocycle-containing compound; the first component, the second component, and a reaction product that is obtained by having the first component and the second component react with each other; or the reaction product that is obtained by having the first component and the second component react with each other.
Absstract of: MX2025007844A
The present invention relates to a method for recovering lithium and, more specifically, to a method for recovering lithium, the method comprising the steps of: (i) heat-treating waste positive electrodes having a positive electrode active material layer applied on a current collector, the positive electrode active material layer containing a positive electrode material having an olivine structure, a binder, and carbon, or a positive electrode active material layer powder obtained by crushing the waste positive electrodes, at 220-280°C to recover the positive electrode material having an olivine structure as a powder; (ii) dissolving the recovered positive electrode material powder having an olivine structure in an aqueous acetic acid solution to prepare a positive electrode material solution; (iii) adding an aqueous hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) solution to the positive electrode material solution to obtain a lithium-dissolved leachate and leach residue; (iv) separating the leachate and the leach residue; and (v) concentrating the leachate, wherein the aqueous acetic acid solution in step (ii) contains 0.8-1.2 moles of acetic acid per 1 mole of positive electrode active material in the positive electrode material powder, and the aqueous hydrogen peroxide solution in step (iii) contains 0.4-0.6 moles of hydrogen peroxide per 1 mole of positive electrode active material in the positive electrode material powder. According to the pres
Absstract of: MX2025007833A
Various embodiments provide a battery, a bulk energy storage system including the battery, and/or a method of operating the bulk energy storage system including the battery. In various embodiment, the battery may include a first electrode, an electrolyte, and a second electrode, wherein one or both of the first electrode and the second electrode comprises direct reduced iron ("DRI"). in various embodiments, the DRI may be in the form of pellets. In various embodiments, the pellets may comprise at least about 60 wt% iron by elemental mass, based on the total mass of the pellets. In various embodiments, one or both of the first electrode and the second electrode comprises from about 60% to about 90% iron and from about 1 % to about 40 % of a component comprising one or more of the materials selected from the group of SiO<sub>2</sub>, AI<sub>2</sub>O<sub>3</sub>, MgO, CaO, and TiO<sub>2</sub>.
Absstract of: MX2025008155A
The present invention provides a nonaqueous electrolyte comprising: a lithium salt; an organic solvent; and a compound represented by chemical formula 1. Chemical formula 1 In chemical formula 1, each of R<sub>1</sub> to R<sub>5</sub> is independently any one selectred from the group consisting of H, F, a nitrile group, a C2-10 alkoxycarbonyl group, a C2-10 alkylcarbonyl group, a C1-10 alkyl group, a C2-10 alkenyl group and a C2-10 alkynyl group, and n is an integer of 1 to 5.
Absstract of: MX2025007770A
The present invention relates to a method for regenerating a positive electrode active material and a regenerated positive electrode active material manufactured thereby and, more specifically, to a method for regenerating a positive electrode active material and a regenerated positive electrode active material manufactured thereby, the method comprising: (a) a step for recovering a positive electrode material by heat-treating, in air or oxygen, a waste positive electrode including a current collector and a positive electrode active material layer coated thereon; (b) a step for adding a lithium precursor to the recovered positive electrode active material and heat-treating in air to restore the crystal structure of the positive electrode active material; (c) a step for adding a dopant precursor to the positive electrode active material with the restored crystal structure and heat-treating same to dope the positive electrode active material; and (d) a step for washing the doped positive electrode active material with a washing solution.ã¿¿According to the present invention, the regenerated positive electrode active material is doped with a predetermined dopant using a predetermined method, thereby improving capacity characteristics and lifespan characteristics. Thus, the present invention has the effect of providing a method for regenerating a positive electrode active material having excellent crack resistance and a regenerated positive electrode active material manufactur
Absstract of: MX2025007757A
The present invention relates to a method for regenerating a regenerated positive electrode active material, a regenerated positive electrode active material manufactured thereby, and a secondary battery including same and, more specifically, to a method for regenerating a positive electrode active material, a regenerated positive electrode active material manufactured thereby, and a secondary battery including same, the method comprising the steps of: recovering the cathode active material by thermally treating a spent positive electrode that has a cathode active material layer formed on a current collector, to thermally decompose the binder and conductive material in the positive electrode active material layer; performing primary milling on the recovered positive electrode active material; adding a lithium precursor to the primarily annealed positive electrode active material, followed by annealing at 400 to 1000°C; and performing secondary milling on the annealed positive electrode active material. According to the present invention, by performing primary milling without a washing process on the positive electrode active material recovered after thermal treatment of the spent positive electrode, adding a lithium precursor to the primarily milled positive electrode active material, annealing, and then performing secondary milling, damage to the particle surface of the positive electrode active material is prevented, uniformity of the particle size of the regenerated pos
Nº publicación: MX2025007768A 01/08/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD
Absstract of: MX2025007768A
Disclosed are a current collector plate, a cylindrical battery cell including same, and a battery pack and a vehicle including the cylindrical battery cell. The current collector plate according to an embodiment of the present invention is a current collector plate for electrically connecting an electrode assembly accommodated in the cylindrical battery cell. The current collector plate comprises: an edge part defining the edge thereof; a center part spaced apart from the edge part and coupled to the electrode assembly; and a connection part for connecting the center part to the edge part, wherein the width of the connection part varies.
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