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1601
results.
Updated on
20/03/2026 [07:15:00]
Results 775 to 800 of 1601
Absstract of: EP4707244A1
Process for making an (oxy)hydroxide of TM wherein TM is nickel or a combination of metals that comprises at least 60 mol-% nickel, referring to TM, and, optionally, at least one of cobalt and manganese, wherein said process comprises the steps of:(a) providing an aqueous slurry containing water-soluble salts of metals that constitute TM and slurried particles of (oxy)hydroxide of TM', wherein TM' is nickel or a combination of metals that comprises at least 60 mol-% nickel, referring to TM', and providing water-soluble salts of TM dissolved in water or in aqueous slurry (a),(b) providing an electrochemical cell comprising at least three compartments separated from each other by anion-exchange membranes, said compartments comprising anode and anolyte, aqueous slurry provided in step (a), and cathode and catholyte, respectively,(c) passing aqueous slurry as provided in step (a) and, if applicable, aqueous solution of salts of TM through the middle compartment and(d) applying an electrochemical current with a current density in the range of from 10 to 500 mA/cm<sup>2</sup>,(e) removing (oxy)hydroxide of TM from the electrochemical cell
Absstract of: EP4708443A1
An electrolyte and a secondary battery, belonging to the technical field of secondary batteries. The electrolyte includes a lithium salt and a solvent. The solvent includes a cyclic carbonate, a linear carbonate, and a carboxylic ester. A mass percentage of the cyclic carbonate is 8% to 24%. The linear carbonate includes a dimethyl carbonate and at least one of a methyl ethyl carbonate and a diethyl carbonate. A mass percentage of a mass sum of the methyl ethyl carbonate and the diethyl carbonate is 2% to 10%. A mass percentage of the carboxylic ester is 20% to 40%. The carboxylic ester includes a first component and a second component. Viscosities of the first and second components at 25±2°C are respectively 0.4 mPa·s to 0.5 mPa·s and 0.3 mPa·s to 0.4 mPa·s. Mass percentages of the first and second components are respectively 15% to 40% and 0% to 15%.
Absstract of: EP4707352A1
The present disclosure provides a bonding structure, a bonding method, an insulating adhesive tape, and a battery. The insulating adhesive tape includes a first bonding area and a second bonding area disposed at intervals, and a non-bonding area disposed between the first bonding area and the second bonding area. The first bonding area is configured to bond a cell, the second bonding area is configured to bond a welding area formed by a tab of the cell and a current collector, and the non-bonding area is configured to correspond to a bending area of the tab.
Absstract of: EP4708445A1
A secondary battery according to an embodiment of the present invention may include a battery can having an opened upper side and configured to define an accommodation space therein, a top cap configured to cover the opened upper side of the battery can, an electrode assembly having a shape in which a positive electrode plate and a negative electrode plate are wound and sequentially stacked with a separator therebetween and disposed in the accommodation space; an electrode lead configured to electrically connect the electrode assembly to at least one of the battery can or the top cap, and a first extinguishing part including an extinguishing component and disposed between the electrode assembly and the battery can.
Absstract of: EP4708442A1
An electrolytic solution and a battery. The electrolytic solution includes a first lithium salt, a second lithium salt and a first additive, the first lithium salt at least including lithium bis(fluorosulfonyl)imide, the second lithium salt being selected from at least one of lithium difluoro(oxalato)borate, or lithium difluoro(bisoxalato)phosphate, and the first additive being methylene methanedisulfonate. On the basis of the electrolytic solution including the first lithium salt and the second lithium salt, the first additive, i.e. methylene methanedisulfonate (MMDS), is further added in the electrolytic solution; the second lithium salt helps to improve the cycling stability and high-temperature storage performance of batteries, and the first additive helps to improve the oxidation resistance of the second lithium salt under high voltages, so as to further modify the composition and structure of SEI films, thus reducing the impedance of SEI films, improving the stability of SEI films, and improving the cycle performance and high-temperature storage performance of batteries.
Absstract of: EP4707829A1
An apparatus for diagnosing resistance increase rate of cellaccording one embodiment of thepresent disclosure may include: a determination unit that determines a reference voltage range based on a discharge profile of a unit cell, an identification unit that identifies a capacity retention rate in a reference voltage range of a unit cell subjected to a specified number of charge-discharge cycles, and a diagnosis unit that diagnoses a resistance increase rate of the unit cell based on the identified capacity retention rate.
Absstract of: EP4708543A1
The present application relates to the field of batteries, and provides a battery (1) and an electrical apparatus. The battery (1) includes a thermal management component (40) and an electrical box (30). The electrical box (30) includes a case (31) and a thermally conductive structure (32). The case (31) is configured to accommodate a heat-generating component (33). The thermally conductive structure (32) is sealingly connected to the case (31), and the thermally conductive structure (32) connects the heat-generating component (33) and the thermal management component (40). The electrical box (30) of the battery (1) facilitates heat exchange between the heat-generating component (33) and the thermal management component (40) via the thermally conductive structure (32) to meet the heat dissipation requirements of the electrical box (30). Additionally, by sealingly connecting the thermally conductive structure (32) to the case (31), connection gaps are sealed to prevent liquid infiltration into the interior of the case (31), thereby enhancing the sealing performance of the electrical box (30) and reducing the risk of high-voltage short-circuit arcing in the electrical box (30) due to water infiltration.
Absstract of: EP4708478A1
The present application provides a battery cell, a battery, and an electrical apparatus, and belongs to the field of battery technologies. The battery cell includes a shell, a pressure relief component, and a reinforcement member. The shell has a wall portion, and the wall portion is provided with a pressure relief hole. The pressure relief component is arranged in the pressure relief hole and covers the pressure relief hole. The reinforcement member is arranged in the pressure relief hole and does not exceed the pressure relief hole in a thickness direction of the wall portion. The reinforcement member is connected to a hole wall surface of the pressure relief hole. The reinforcement member and the pressure relief component are arranged in the thickness direction of the wall portion to reinforce the strength of the wall portion at the pressure relief hole. This battery cell is capable of improving, by the reinforcement member, the structural strength of a region of the wall portion where the pressure relief hole is arranged, so as to alleviate the phenomenon that the pressure relief hole deforms when the wall portion is subjected to internal and external impact forces, thereby being capable of playing a protective role for the pressure relief component, so as to reduce the impact to the pressure relief component when the wall portion is subjected to the internal and external impact forces, which is conducive to alleviating the deformation of or damage to the pressure relief
Absstract of: EP4708402A1
The present application discloses a positive electrode plate and a preparation method therefor, a positive electrode plate, a battery and an electrical apparatus. The positive electrode plate comprises a positive electrode current collector, and at least one side of the positive electrode plate away from the positive electrode current collector comprises a polymer and an organic solvent, wherein the organic solvent is located in the polymer, and the electrochemical oxidation window of the organic solvent is greater than 4 V
Absstract of: EP4708401A1
This application provides a negative electrode and a preparation method therefor, a battery cell containing the same, a battery, and an electric apparatus, where the negative electrode includes a negative electrode current collector and a coating disposed on at least one surface of the negative electrode current collector, the coating includes a flexible carbon material, the flexible carbon material includes micropores with a pore diameter less than or equal to 0.8 nm, a pore volume of the micropores with a pore diameter less than or equal to 0.8 nm is denoted as Vmic, a pore volume of the flexible carbon material is denoted as Vtotal, both in units of cm<3>/g, and Vmic:Vtotal≥65:100.
Absstract of: EP4707282A1
A monomer for an electrolyte according to the embodiments of the present disclosure may include a compound represented by Formula 1. The lithium secondary battery according to the embodiments of the present disclosure includes a cathode, an anode, and an electrolyte, and the electrolyte may include a polymer formed by polymerizing the compound represented by Formula 1.
Absstract of: EP4708373A1
The present application provides a cathode material comprising the following raw materials in parts by weight: 10 parts of a porous carbon conductive agent, 7 to 14 parts of an additive, 38 to 44 parts of an active material, and 32 to 40 parts of a solid electrolyte, wherein the active material comprises sulfur powder, and the additive comprises one or both of phosphorus pentasulfide and phosphorus trisulfide. Elemental sulfur reacts with lithium ions during battery discharge to form lithium sulfide, which can react with the additive to in-situ generate a lithium phosphorus sulfur solid electrolyte. The lithium phosphorus sulfur solid electrolyte not only enables most of the active material to participate in the charge-discharge cycle, improving the utilization rate of the active material, but also forms an ionic conductive network, allowing lithium ions to conduct faster. It also enhances the ionic conductivity of the cathode material, achieving high specific capacity and cycling stability in all-solid-state lithium-sulfur batteries under high areal loading conditions.
Absstract of: EP4708598A1
A bracket structure and a battery pack are provided herein. The bracket structure includes a mounting bracket (1), the mounting bracket (1) comprises a first mounting end (1A) and a second mounting end (1B) disposed opposite to each other in a first direction(Z), the first mounting end (1A) is configured to mount a copper busbar (2), the second mounting end (1B) is configured to be connected to a battery box(11), at least one side of the mounting bracket (1) in a second direction (Y) is configured to mount a harness (3), the second direction (Y) intersects with the first direction(Z); in the first direction(Z), the harness (3) is located between the first mounting end (1A) and the second mounting end(1B).
Absstract of: EP4707830A1
The present invention relates to a positive electrode comprising a positive electrode active material, wherein a resistance component ratio, as defined by equation 1 below, is 2 or more. Equation 1 R<sub>ct</sub> / R<sub>s</sub>. In the equation, R<sub>ct</sub> means a charge transfer resistance of the positive electrode, which is measured in a first frequency range for a secondary battery comprising the positive electrode, R<sub>s</sub> means a surface or interface resistance of the positive electrode, which is measured in a second frequency range for the secondary battery comprising the positive electrode, the first frequency range is from 1 Hz to 1 kHz, and the second frequency range is from more than 1 kHz to 1,000 kHz.
Absstract of: EP4708525A1
A battery enclosure according to certain embodiments of the present disclosure comprises: an enclosure having an accommodation space therein, a battery rack that is fixed to the accommodation space inside the enclosure and includes at least one battery, and a control panel that provides an electrical connection between an electrical device located outside the enclosure and the battery rack, wherein the control panel is connected to the battery rack via a first cable, and wherein the first cable extends from the control panel located on one side of the enclosure toward the other side of the enclosure within a first power distribution space formed on an upper part of the enclosure.
Absstract of: EP4708501A1
A battery enclosure according to certain embodiments of the present disclosure comprises: an enclosure having an accommodation space therein, a battery rack that is fixed to the accommodation space inside the enclosure and includes at least one battery, and a control panel that provides an electrical connection between an electrical device located outside the enclosure and the battery rack, wherein the size occupied by the control panel in a longitudinal direction of the enclosure is less than or equal to twice the length value of the battery.
Absstract of: EP4708519A1
A coupling mechanism according to an embodiment of the present invention may include a head part, a screw part provided to be coupled to the head part, and an elastic member configured to elastically connect the head part to the screw part in an internal accommodation space defined when the head part and the screw part are coupled to each other.
Absstract of: EP4708518A1
A coupling mechanism according to an embodiment of the present invention may include a head part, a screw part provided to be coupled to the head part, and a bonding member which is disposed along an outer circumference of the head part on the screw part and is melted when a temperature of the bonding member is equal to or greater than a predetermined temperature.
Absstract of: EP4707836A1
A battery management apparatus according to an embodiment disclosed herein includes a voltage measurement unit configured to measure a voltage of each of a plurality of battery cells and a controller configured to calculate a first deviation, which is a deviation between a long moving average and a short moving average of a battery cell voltage of each of the plurality of battery cells, calculate a second deviation, which is a deviation between a long moving average and a short moving average of an average voltage of the plurality of battery cells, and calculate a first diagnosis deviation between the first deviation and the second deviation for each of the plurality of battery cells, diagnose each of the plurality of battery cells based on whether a final diagnosis deviation related to the first diagnosis deviation of each of the plurality of battery cells is at least a first threshold value and based on a time during which the final diagnosis deviation is maintained as being at least a second threshold value.
Absstract of: EP4708537A1
A method for preparing a composite coating separator is disclosed. The method includes: mixing raw materials including an inorganic powder, a hollow latex microsphere emulsion, a binder, and a solvent to obtain a mixed slurry; applying the mixed slurry to a surface of a base film, and drying the mixed slurry on the surface of the base film to obtain the composite coating separator. A mass ratio of the inorganic powder in the mixed slurry is 20%-35%, and a mass ratio of the hollow latex microsphere emulsion in the mixed slurry is 5%-10%. A viscosity of the mixed slurry is 100 mPa.s-120 mPa.s. The hollow latex microsphere emulsion includes hollow microspheres, and a density of the hollow microspheres is 0.8 g/cm<sup>3</sup>-0.9 g/cm<sup>3</sup>.
Absstract of: EP4708612A1
An electronic device according to an embodiment may comprise: a battery; a direct charger including a first capacitor, a second capacitor, and a plurality of switches; and a control circuit. The control circuit according to an embodiment may: identify a first mode in which a voltage input to the direct charger is converted at a 4:1 ratio and power is supplied to the battery; and control the plurality of switches at a first phase of providing second power having a second voltage which is 1/4 times a first voltage to the battery while charging a first capacitor and a second capacitor in series on the basis of first power of the first voltage received from the outside, a second phase of providing second power to the battery while charging the second capacitor with the power with which the first capacitor is charged, and a third phase of providing the second power to the battery on the basis of the power with which the second capacitor is charged, wherein a voltage which is twice the second voltage is applied to the first capacitor and the same voltage as the second voltage is applied to the second capacitor so that an output voltage is converted at a 4:1 ratio by only using two flying capacitors.
Absstract of: EP4708428A1
The present invention provides a lead tab including a metal substrate including aluminum and a metal layer laminated on both sides of the metal substrate, wherein the metal layer includes 70 to 99.9 wt% of chromium, wherein the lead tab has a gloss of 60 to 100 (Gs 60°), and has a water contact angle of 60 to 80°.
Absstract of: EP4708403A1
A secondary battery, including: a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive current collector and a positive active material layer formed on the positive current collector, the positive active material layer includes a positive active material and polyvinyl butyral, and the electrolyte includes lithium difluorophosphate and a trinitrile compound. A shedding resistance of the positive electrode is improved, an initial resistance of the secondary battery is further reduced, and a low-temperature rate characteristic is further improved.
Absstract of: EP4708426A1
The present invention provides a lead tab comprising: a metal substrate including aluminum; and a metal layer disposed on both sides of the metal substrate; wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has an ultrasonic welding strength of 70 kgf/mm<sup>2</sup> or more.
Nº publicación: EP4708427A1 11/03/2026
Applicant:
FLEXION CO LTD [KR]
Flexion Co., Ltd
Absstract of: EP4708427A1
The present invention provides a lead tab comprising: a metal substrate including aluminum; and a metal layer disposed on both sides of the metal substrate; wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has a laser welding strength of 40 kgf/mm<sup>2</sup> or more.
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