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85
resultados
Última actualización
09/04/2026 [07:41:00]
Resumen de: US20260081153A1
A positive electrode active material comprises powder. The powder includes secondary particles. Each of the secondary particles includes primary particles. Each of the primary particles includes an olivine-type phosphate compound. In an SEM image of the powder, a proportion of the secondary particles each having an open pore is 40% or more. For the secondary particles each having an open pore, a relationship of “0.10≤d/D≤0.70” is satisfied. “d” represents a pore diameter of the open pore. “D” represents a maximum Feret diameter of the secondary particle.
Resumen de: US20260081156A1
A positive electrode active material comprises secondary particles. Each of the secondary particles includes primary particles. Each of the primary particles includes an olivine-type phosphate compound. Carbon is adhered to at least part of a surface of the primary particle. As for a cross section of the secondary particle, a peak height ratio of a first Raman spectrum measured for a central portion of the secondary particle is 14% or less. The peak height ratio is determined by the equation “R=Ip/Ic”. In the equation, “R” represents the peak height ratio. “Ip” represents a height of a peak at or near 850 cm−1. “Ic” represents a height of either a peak at or near 1350 cm−1 or a peak at or near 1580 cm−1, whichever is higher.
Resumen de: US20260081154A1
A positive electrode active material comprises powder. The powder includes secondary particles. Each of the secondary particles includes primary particles. Each of the primary particles includes an olivine-type phosphate compound. Carbon is adhered to at least part of a surface of the primary particle. For at least one of the secondary particles, a surface of the secondary particle has a groove that extends linearly.
Resumen de: EP4715946A1
The present invention relates to a cylindrical lithium secondary battery including an electrode assembly in which a positive electrode, a separator, and a negative electrode are sequentially stacked and wound in one direction, an electrolyte, and a battery case in which the electrode assembly and the electrolyte are accommodated, wherein the electrolyte includes one or more selected from the group consisting of a cyclic carbonate-based solvent and a linear carbonate-based solvent, a diffusion of ions in a battery (DIB) value defined by Equation 1 below is 150 mS/mm<sup>2</sup> to 160 mS/mm<sup>2</sup>, and the viscosity of the electrolyte at 25 °C is 3.23 cP or less. DIBDiffusionofIoninaBattery=hR×1r×C×t+×1000In Equation 1 above, h (unit: mm) is the height of the cylindrical lithium secondary battery, R (unit: mm) is the diameter of the cylindrical lithium secondary battery, r (unit: mm) is the radius of a winding central portion of the electrode assembly, C (unit: mS/mm) is the ion conductivity of the electrolyte, and t<sup>+</sup> is the cation transport rate of the electrolyte.
Resumen de: EP4715364A1
Embodiments provide an electrode-tab assembly inspection device. The electrode-tab assembly inspection device includes: a first jig configured to fix an electrode including a coated part and an uncoated part; a second jig configured to pull an electrode tab, which is welded to the uncoated part of the electrode, in a direction that is not parallel to the electrode; and a gauge configured to sense a tensile force applied to the electrode tab.
Resumen de: EP4715882A1
A method of processing lithium metal for the negative electrode of an electrode assembly is provided. The processing method comprises the steps of: supplying raw materials by separating a first raw material comprising lithium metal bonded with a first protective layer on one side, and a second raw material comprising a second protective layer, so that the lithium metal is located between the first and second protective layers; cutting the lithium metal by pressurizing the supplied raw materials with a cutter on the first and second protective layers; and recovering the raw materials by separating the first and second raw materials after cutting. The method of processing lithium metal according to one embodiment of the present invention is effective for processing longitudinally extended lithium metal that is applied as a negative electrode in a stacked-folded electrode assembly, and can produce highly reliable processed lithium metal.
Resumen de: EP4715922A1
The present disclosure is directed to providing a can lid in which a means of relieving high pressure is provided. The present disclosure is also directed to providing a battery cell including such a can lid. A can lid according to the present disclosure includes a vent notch portion on the opposite surface of a surface facing an electrode assembly. The can lid may include an edge portion formed on an edge to be coupled to a cell housing; and an electrode coupling portion coupled to the electrode assembly and recessedly formed, wherein the vent notch portion may be formed between the electrode coupling portion and the edge portion.
Resumen de: EP4715898A1
In general, according to an approach, an electrode is provided. The electrode contains a niobium-containing oxide and a carbon-containing material. A hydroxyl group content of the niobium-containing oxide is 0.25 mmol/g or less. A functional group content of the carbon-containing material is 5 mmol/g or less.
Resumen de: EP4714904A1
A method for producing a metal-containing hydroxide or oxyhydroxide particulate material, the method comprising the steps of:(a) providing a first slurry comprising ammonia and particles of hydroxide or oxyhydroxide of metals Mc;(b) reducing a level of ammonia (NH3(aq)) from at least a portion of the first slurry to obtain a seed slurry; and(c) combining the seed slurry with streams of an aqueous solution (As) containing salts of metals Ms and an aqueous solution (Bs) containing a precipitating agent, thereby obtaining a second slurry comprising particles having a layer of hydroxide or oxyhydroxide of Ms on the particles of the seed slurry,wherein the Mc=Ni1-xc-yc-zcMnxcCoycAzc with 0≤xc≤0.85, 0≤yc≤0.35, 0≤zc<0.1, and 0.15≤1-xc-yc-zc≤1; andwherein the Ms=Ni1-xs-ys-zsMnxsCoysAzs with 0.55≤xs≤0.85, 0≤ys≤0.35, 0≤zs<0.1, and 0.15≤1-xs-ys-zs≤0.45.
Resumen de: EP4714954A1
The present invention relates to fused polycyclic compounds, methods of preparing said compounds, their use as electrode active material, electrodes comprising said compounds, a method of preparing said electrodes, use of said electrodes in an aqueous or non-aqueous secondary battery and a secondary battery comprising said electrode.
Resumen de: EP4715980A1
The application discloses a battery pack, including: a casing body, including a casing shell and a casing cover, wherein the casing shell forms a accommodating cavity, and the casing cover and the casing shell are connected with each other so that the casing cover closes the accommodating cavity; a plurality of battery cells, arranged inside the accommodation cavity; a plurality of pressure strips, arranged between the casing cover and the battery cells; a first adhesive; and a second adhesive; wherein the first adhesive is arranged between the casing cover and the plurality of pressure strips to connect the casing cover with the plurality of pressure strips, and the second adhesive is arranged between the plurality of pressure strips and the plurality of battery cells to connect the plurality of pressure strips with the plurality of battery cells.
Resumen de: EP4715998A1
The present disclosure provides a secondary battery. A secondary battery according to the present disclosure includes an electrode assembly including a plurality of first electrode tabs and a plurality of second electrode tabs, and a collector plate joined to the plurality of first electrode tabs, in which the plurality of first electrode tabs includes a first tab group, the first tab group is joined to the collector plate while at least some of the plurality of first electrode tabs of the first tab group are bent in a first direction and others of the plurality of first electrode tabs of the first tab group are bent in a second direction, and the first direction and the second direction are substantially parallel to a stacking direction of the electrode assembly and are substantially opposite to one another.
Resumen de: US20260081314A1
To provide a connection method adapted to connect a bus bar and a voltage detection line in such a way that the possibility of electric shock is reduced in the case of performing re-connection in an assembled battery pack. A connection method according to the present disclosure is a connection method for performing connection between the bus bar and the voltage detection line in a battery pack. In this connection method, the voltage detection line is joined to the bus bar housed in a bus bar case made of an insulating material, and a spacer is fixed to the bus bar case under a state in which the bus bar and the voltage detection line are pressed between the bus bar case and the spacer made of an insulating material to thereby bring the bus bar and the detection line in close contact with each other.
Resumen de: EP4715302A1
An apparatus for drying an electrode plate of a secondary battery comprises a hot air inlet pipe that includes a torsional structure that is configured to cause rotation hot air for drying an electrode plate coated with a secondary battery electrode material substance or a rolled electrode plate. The apparatus also includes a drying duct that includes hot air ejection ports configured to direct the rotating hot air discharged from the hot air inlet pipe to the electrode plate.
Resumen de: EP4715962A1
L'invention concerne une couche chauffante (60) pour batterie d'accumulateurs, comprenant un support (61) et au moins une piste électrique (62) qui est portée par le support (61) et qui est adaptée à émettre de la chaleur par effet Joule lorsqu'elle est alimentée en courant électrique.Selon l'invention, la piste électrique présente au moins une première zone (Z1) dans laquelle elle est adaptée à émettre davantage de chaleur que dans une seconde zone (Z2).
Resumen de: EP4715961A1
Provided are a battery module and a battery pack. The battery module includes a casing (1) having a liquid cooling chamber (11); two liquid cooling assemblies (2) disposed on two opposite sides of the liquid cooling chamber (11), respectively; a cell group (3) having multiple cells (31) disposed in the liquid cooling chamber (11); and a cells contact system, CCS, assembly (4) disposed between the cell group (3) and any one of the two liquid cooling assemblies (2). A liquid cooling assembly (2) has a cooling flow channel (21) communicating with the liquid cooling chamber (11).
Resumen de: EP4715949A1
The present application provides a battery pack. The battery pack includes a case (1); a separation mechanism provided in the case and dividing an inner space of the case into an electrical compartment and a battery compartment, wherein the separation mechanism includes a flexible separator (21); an electrical component (3) disposed in the electrical compartment and including a collecting board (31) and a collecting line (32), wherein the collecting line is plugged with the collecting board, and the collecting line passes through the flexible separator in the thickness direction of the flexible separator to the battery compartment; a battery module disposed in the battery compartment and including a battery core (4), wherein the collecting line enters the battery compartment and collects parameters of the battery core; foamed glue (5) filling voids in the battery compartment.
Resumen de: EP4715960A1
A heat transfer fluid for electric vehicle applications, wherein the heat transfer fluid is a dielectric fluid configured to transfer heat in direct contact with live parts, the heat transfer fluid comprises at least 20 wt% of a first component based on the total weight of the heat transfer fluid, and at least 1 wt% and up to 80 wt% of a second component based on the total weight of the heat transfer fluid, wherein the first component has a kinematic viscosity KV 20 ≤ 50.0mm<2>/s, a kinematic viscosity KV 100 ≤ 10.0mm<2>/s, and an initial boiling point (IBP) ≥ 150 °C, and the second component has a kinematic viscosity KV 20 ≤ 1.0 mm<2>/s" wherein the KV 20 of the first component is higher than the KV 20 of the second component and a final boiling point (FBP) ≤ 100 °C,.A method for operating a thermal management arrangement (1) for electric components (2) in electric vehicles comprises the step of providing the thermal management arrangement (1). The thermal management arrangement (1) includes a heat source in the form of an electric component (2) which is arranged in a housing (3), a cooling circuit (5) comprising an encircling fluid line (6) which is thermally coupled to the electric component (2) and a heat exchanger (7) arranged in the fluid line (6). The thermal management arrangement (1) further comprises a heat transfer fluid disposed in the fluid line (6) and a pump (8) configured for transporting the heat transfer fluid through the fluid line (6). The heat
Resumen de: EP4714729A1
A mobile charging system (100) having a thermal management system (120) is disclosed. The mobile charging system further comprising: a location system (208); a battery (119) and a heat exchanger (122) of the thermal management system (120), the heat exchanger (122) being positioned on a towed vehicle (104) of the mobile charging system (100); at least one processor (302); and a memory (304) coupled with the processor (302), the memory (304) including instructions that when executed by the processor (302) cause the mobile charging system (100) to: determine whether a ground travel speed of the mobile charging system (100), as determined using at least information provided by the location system (208), satisfies a predetermined ground travel speed threshold; generate a signal to facilitate an operation, based at least on the ground travel speed not satisfying the predetermined ground travel speed threshold, of the thermal management system (120) in a first, high power mode at which at least an impeller (124) of the thermal management system (120) is operated using an electrical power provided by the battery (119) of the mobile charging system (100) to control a temperature of at least the heat exchanger (122); and generate a signal to facilitate an operation, based at least on the ground travel speed satisfying the predetermined ground travel speed threshold, of the thermal management system (120) in a second, low power mode at which at least the impeller (124) is not operated
Resumen de: JP2025015099A
To provide a cathode active material for a lithium secondary battery with coating by which cycle characteristic can be improved when applied to a lithium secondary battery.SOLUTION: A cathode active material for a lithium secondary battery with coating is intended for a sulfide-based all-solid secondary battery, and includes a cathode active material including nickel, manganese, and cobalt, and a coating film that is disposed on a surface of the cathode active material and includes fluoride and a phosphorus-containing compound.SELECTED DRAWING: Figure 1
Resumen de: EP4715967A1
Disclosed is a secondary battery including: a stack-type electrode assembly including a plurality of unit cells stacked in a first direction, and having electrode leads at both ends in a second direction perpendicular to the first direction; a multifunctional terminal block (MTB) at both ends of the stack-type electrode assembly; and a laminate sheet wrapping around the sides of the stack-type electrode assembly, wherein the MTB includes: an inner housing, and a first assembly comprising an electrode terminal part stored in the inner housing and electrically connected to electrode leads of the stack-type electrode assembly; and an outer housing wrapping around at least a portion of the first assembly, and a second assembly comprising a rupture disk coupled to the outer housing and configured to rupture to release gas upon an increase in internal pressure.
Resumen de: EP4715956A1
The present disclosure relates to a manufacturing method of a lithium secondary battery comprising: a step(S1) of manufacturing a preliminary cell which comprises a positive electrode containing a positive electrode active material, a negative electrode, a separator and an electrolyte; and a step (S2) of charging the preliminary cell to a charging cut-off voltage and discharging to activate the preliminary cell, wherein: the positive electrode active material includes a lithium-rich manganese-based oxide containing 50 mol% or more of manganese(Mn) among all metals excluding lithium, and having a molar ratio of lithium to all metals excluding lithium (Li/Me) exceeding 1, the charging cut-off voltage is more than 4.3V, and the activating step is performed so that the ratio (B/A) of the charging capacity(B) in the range from 4.3V to the charging cut-off voltage to the total charging capacity(A) when the preliminary cell is charged to the charging cut-off voltage is 0.63 or less.
Resumen de: GB2700912A
An electrode carrying insert for an energy cell and an energy cell are disclosed. The electrode carrying insert 100 comprises a body (120, Figure 3) having and electrode 110 extending through it. The carrier 100 is insertable into an opening in a housing 50 of the energy cell, a sealing region of the body 120 seals the opening. The energy cell is configured to apply electrical energy to liquid in the cell and heat it by generating bubbles of plasma. The insert comprises a coupling element 96 arranged to secure a portion of the insert to the housing 50 of the energy cell. The electrode carrier allows the volume of the energy cell to be suitably sealed so that plasma generation can occur. The plasma generates heat within the energy cell which may generate heated fluid, such as steam, which may be output from the energy cell to be used with a work extraction system. Figure 4
Resumen de: EP4715908A1
Provided is a binder for a solid-state electrolyte battery, comprising a polymer comprising a segment A having a glass transition temperature of 25°C or less and a segment B having a melting point of 50°C or more.
Nº publicación: EP4715991A1 25/03/2026
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Resumen de: EP4715991A1
The present application provides a battery cell, a battery, and an electric device. The battery cell includes a housing, a pressure relief mechanism, and a protective member. The housing includes a wall portion. The pressure relief mechanism is provided at the wall portion, and can be actuated to release gas within the housing in a case where an internal pressure or temperature of the battery cell reaches a threshold value. The protective member has a melting point greater than or equal to 300°C, and the protective member covers at least part of the pressure relief mechanism in a thickness direction of the wall portion.
BOPI
Sede Electrónica
