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1356
results.
Updated on
12/08/2025 [07:12:00]
Results 500 to 525 of 1356
Absstract of: EP4597634A1
A binder composition for a non-aqueous secondary battery electrode contains a polymer X that includes an acidic group-containing monomer unit in a proportion of not less than 3 mass% and not more than 20 mass% and a repeating unit derived from an unsaturated monomer A in a proportion of not less than 5 mass% and less than 50 mass%. The unsaturated monomer A has a solubility in water of not less than 1 g/100 mL and not more than 15 g/100 mL and has a glass-transition temperature of 40°C or lower.
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: 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: 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: EP4597618A1
This negative electrode for alkaline secondary batteries comprises a negative electrode current collector and a negative electrode mixture that is supported by the negative electrode current collector. The negative electrode mixture contains a hydrogen storage alloy that has an Fe content of 200 to 900 ppm by mass, and a carbon black that has an Fe content of 1,000 to 2,800 ppm by mass.
Absstract of: EP4597701A1
A connector is fixed to a fixed member with waterproof structure while manufacturing cost is reduced. The waterproof structure of a connector includes fixed member 2 provided with connector insertion port 2A and a plurality of screw insertion ports 2B, connector 3 including a connector body 31 and flange part 32, screw receiving member 4 disposed facing a second surface of fixed member 2 and into which fixing screw 7 having passed through flange part 32 and fixed member 2 is screwed, packing member 5, and O-ring 6. Screw receiving member 4 includes a plurality of screw fixing parts 41 into which fixing screws 7 are screwed without passing through corresponding screw fixing parts 41, and coupler 42 that couples the plurality of screw fixing parts 41. The waterproof structure is formed in which O-ring 6 seals an opening of each of screw insertion ports 2B while fixing screw 7 having inserted through screw insertion hole 33 of flange part 32 and the corresponding one of the screw insertion ports 2B is screwed into corresponding one of screw fixing parts 41 with O-ring 6 interposed therebetween, and packing member 5 is sandwiched between flange part 32 and fixed member 2 to seal an opening of connector insertion port 2A with packing member 5.
Absstract of: EP4597668A1
In a non-aqueous electrolyte secondary battery according to the present disclosure, a positive electrode comprises a lithium-containing composite oxide, and a sulfonic acid compound which is represented by formula (I) and is present on a particle surface of the lithium-containing composite oxide, and a negative electrode mixture layer of a negative electrode includes first graphite particles having an internal porosity of at most 5% and second graphite particles having an internal porosity of 8% to 20%. A thickness T1 of a first negative electrode mixture layer facing a negative electrode core and a thickness T2 of a second negative electrode mixture layer facing the positive electrode satisfy 0.1≤T1/(T1+T2)≤0.9, and a ratio C1 of the first graphite particles to the total mass of the first and second graphite particles in the first negative electrode mixture layer, and a ratio C2 of the first graphite particles to the total mass of the first and second graphite particles in the second negative electrode mixture layer satisfy C1
Absstract of: EP4597731A1
Spring back is suppressed with a simple configuration. An electric device includes lead plate 30 including bent segment 32 bent along bend line 31, circuit board 3 electrically connected to bent segment 32 of lead plate 30, and holder 20 that holds lead plate 30. Holder 20 includes holder portions 26 that lock part of upper surfaces of bent segments 32. Holder portion 26 is configured to abut on and hold the part of the upper surface of bent segment 32 while the holder portion opposes a direction of spring back caused by bent segment 32 of lead plate 30 being bent along bend line 31. Circuit board 3 includes connection region 4 electrically connected to lead plate 30. Bent segment 32 is electrically connected to connection region 4.
Absstract of: EP4597686A1
The present invention provides a saggar for an apparatus for recycling of waste secondary batteries, the saggar including a storage part input together with objects into the apparatus including a work part, wherein the storage part includes a body part and a mesh part coming into contact with the objects inside the body part, and a predetermined mixed gas input into the work part enters the storage part. According to the present invention, heat treatment efficiency can be maximized by making it easy to input a gas for heat treatment of waste secondary batteries, mass heat treatment of waste secondary batteries is possible, and multiple types of waste secondary batteries can be treated at once.
Absstract of: EP4597594A1
A system and a method for manufacturing an electrode assembly for a battery are provided. The system includes a first cutter configured to cut a first patterned electrode sheet to form a first electrode cut portion having a first length, a first sensor arrangement configured to generate a first cutting operation code and to acquire first position data reflecting positions on the first electrode sheet, a second cutter configured to cut a second patterned electrode sheet to form a second electrode cut portion having a second length, a second sensor arrangement configured to generate a second cutting operation code and to acquire second position data, a combinator configured to manufacture an electrode assembly by combining the first electrode cut portion and the second electrode cut portion with a separator interposed therebetween, and an identification information assigning device configured to assign identification information to the manufactured electrode assembly and associate the identification information with the first cutting operation code and the first position data, and with the second cutting operation code and the second position data.
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: 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: GB2637780A
An electrode for an alkali metal ion secondary cell and its precursor composition with a polymer-electrolyte gel matrix phase, a dispersed phase comprising an electrochemically active material, and a conductive additive with a tubular carbon material as a majority component, preferably MWCNTs (multi-walled carbon nanotubes). The electrochemically active material may be a lithium transition metal oxide, preferably NMC. The electrode may be produced by processing the composition as a film or coating by thermal processing or extrusion. A method of manufacture and storage device are also described. The use of gel electrodes avoids the use of energetically expensive sacrificial solvents, and the use of tubular carbon improves electrochemical performance reducing the tortuosity values.
Absstract of: GB2637719A
A battery stack monitoring method for detecting occurrence of a thermal event in one or more battery stacks, comprising: receiving a signal indicative of a measured voltage in the one or more battery stacks; determining, in dependence on the measured voltage, whether a voltage-drop criterion is satisfied; and outputting, in dependence on the voltage-drop criterion being satisfied, a signal that a thermal event has occurred in the one or more battery stacks. The voltage drop criterion comprises a drop in the measured voltage exceeding a first threshold; and/or the measured voltage dropping below a second threshold. A battery stack monitoring system may comprise one or more processors collectively configured to perform the method. A battery storage system may comprise a plurality of battery stacks, a storage buffer for storing the stacks, one or more conveyors for moving the stacks in and out of the buffer, and the stack monitoring system.
Absstract of: EP4597654A1
The present disclosure provides a battery module, an apparatus and method for manufacturing said battery module, and a method of disassembling said battery module. The battery module of the present disclosure is comprised of a plurality of pouch battery cells arranged within a structural enclosure, such that the battery module is folded about a plurality of module folding lines to form a folded battery module. Embodiments of the battery module provide improved mechanical strength and stiffness, improved safety, lower weight and cost, and provides further improvements to disassembly and recycling of the battery module.
Absstract of: EP4597714A1
A housing assembly (400), a battery cell (10), a battery (100), and an electric device (1000) are provided. The housing assembly (100) is used for the battery cell (10) and includes a housing (1) and a separator (420). A pressure relief portion (430) is formed on an outer surface of the housing (1); the separator (420) includes a fitting surface (421), a groove (422) is formed on the fitting surface (421), the fitting surface (421) is fitted to the outer surface of the housing (1), and at least part of the pressure relief portion (430) is accommodated in the groove (422).
Absstract of: EP4596204A1
A molding apparatus according to an embodiment of the present invention may mold a pouch film. The molding apparatus may include: a die in which a first opening is defined; a stripper disposed above the die to fix the pouch film and having a second opening; a sub die having a height that is variable with respect to the die inside the first opening; a punch configured to press the pouch film through the second opening and disposed to face the sub die; and a sub punch configured to press the pouch film between an inner circumference of the first opening and an outer circumference of the sub die through a space between an inner circumference of the second opening and an outer circumference of the punch.
Absstract of: EP4596275A1
A thermal management system, comprising: a battery thermal management subsystem which comprises a first trunk line and a second trunk line, the first trunk line being used for exchanging heat with a first area of a battery, the second trunk line is used for exchanging heat with a second area of the battery, the first area and the second area being different, and at least one of the first trunk line and the second trunk line exchanging heat with the battery; and a heat exchange unit which is arranged on the battery thermal management subsystem and a power thermal management subsystem, wherein the battery thermal management subsystem and the power thermal management subsystem exchange heat by means of the heat exchange unit, and the power thermal management subsystem is used for heat dissipation of electronic modules.
Absstract of: EP4596307A1
A control method and a vehicle. The control method comprises: acquiring a heat exchange signal; and controlling at least one of a first trunk line in a thermal management system and a second trunk line in the thermal management system to exchange heat with a battery, the first trunk line being used for exchanging heat with a first area of the battery, the second trunk line being used for exchanging heat with a second area of the battery, and the first area being different from the second area.
Absstract of: EP4596309A1
A thermal management system and a vehicle having same. The thermal management system comprises: a battery heat exchange module. The battery heat exchange module comprises: a first trunk line and a second trunk line, wherein the first trunk line is configured to exchange heat with a first region of a battery, the second trunk line is configured to exchange heat with a second region of the battery, the first region is different from the second region, and at least one of the first trunk line and the second trunk line exchanges heat with the battery.
Nº publicación: EP4596274A1 06/08/2025
Applicant:
BYD CO LTD [CN]
BYD Company Limited
Absstract of: EP4596274A1
A thermal management system and a vehicle having same. The thermal management system comprises: a battery thermal management subsystem, the battery thermal management subsystem comprising a first trunk line (10a) and a second trunk line (10b), the first trunk line (10a) being used for exchanging heat with a first region of a battery, the second trunk line (10b) being used for exchanging heat with a second region of the battery, the first region being different from the second region, and at least one of the first trunk line (10a) and the second trunk line (10b) exchanging heat with the battery; and at least one first heat exchanger (791), the first heat exchanger (791) being arranged on the battery thermal management subsystem and an air conditioning subsystem, and the battery thermal management subsystem and the air conditioning subsystem exchanging heat by means of the first heat exchanger.
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