Alerta

POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Resumen de: EP4794027A1

The present application provides a cathode material, a manufacturing method thereof, a cathode plate, a secondary battery, and an electric device, which belongs to the technical field of battery cathode materials. The cathode material includes a carbon layer and a plurality of sodium vanadium fluorophosphate particles distributed in the carbon layer. The sodium vanadium fluorophosphate particles are coated by the carbon layer. The carbon layer has a porous network structure and a thickness of 3 nm to 6 nm. A porosity of the cathode material is 10% to 35%. The manufacturing method adopts a microwave-assisted hydrothermal treatment and a sol-gel technology to obtain a gel slurry, which is dried and then calcined to obtain the above cathode material. The cathode material of the present application improves the wettability in an electrolyte and the electron and sodium ion transport efficiency, which improves the charging and discharging efficiencies and the electrochemical performance of the secondary battery.

CATHODE FOR LITHIUM SECONDARY BATTERY, THE METHOD OF MANUFACTURING THE SAME AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Resumen de: EP4794001A1

0001 The present disclosure relates to a cathode for a lithium secondary battery including a cathode current collector; and a cathode composite layer formed on the cathode current collector, wherein the cathode composite layer includes a first cathode composite layer on a side of the cathode current collector, and a second cathode composite layer on a surface side of the cathode composite layer, wherein the first cathode composite layer includes a first cathode active material of lithium transition metal composite oxide particles in forms of secondary particles in which primary particles are aggregated, and a binder, wherein the second cathode composite layer includes a second cathode active material of lithium transition metal composite oxide particles in forms of single particles, and a binder.

POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Resumen de: EP4793998A1

Disclosed are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery includes a substrate, and a positive electrode active material layer on the substrate. The positive electrode active material layer includes MXene, a solid electrolyte, and a positive electrode active material. A distribution of the solid electrolyte increases from the lower portion to the upper portion of the positive electrode active material layer.

CHARGING DEVICE

Resumen de: EP4794164A1

System zum Versorgen von Akkumulatoren, insbesondere als Energiespeicher einer Werkzeugmaschine, mit elektrischer Energie.Erfindungsgemäß enthält das System wenigstens eine Regel- und Steuereinheit mit wenigstens einer Eingangsschnittstelle zur Aufnahme elektrischer Energie, wenigstens einer Ausgabeschnittstelle zur Abgabe elektrischer Energie, wenigstens einen Gleichrichter, wenigstens eine erste mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens eines ersten und zweiten Akkumulators mit elektrischer Energie sowie eine zweite mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens einer Aufbewahrungseinheit mit elektrischer Energie, wobei jede Aufbewahrungseinheit wenigstens eine Akku-Schnittstelle zum Versorgen wenigstens eines Akkumulators mit elektrischer Energie enthält.Verfahren zum Steuern und Regeln des Systems zum Versorgen von Akkumulatoren mit elektrischer Energie.

COMPOSITE MATERIAL AND METHOD FOR PRODUCING A COMPOSITE MATERIAL

Resumen de: EP4793034A1

0001 The present invention relates to a composite material (1), in particular for thermal insulation of a rechargeable battery and/or for preventing damage in case of a thermal runaway of a rechargeable battery, preferably a traction battery of an electric vehicle. The composite material (1) has two textile layers (2,3), wherein one of the layers a nonwoven fabric (2), in particular a veil, and one of the textile layers is a woven fabric (3), and wherein the nonwoven fabric layer (2) is completely penetrated with a ceramic penetration medium (4), whereby the woven fabric layer (3) is partly penetrated with the ceramic penetration medium (4). 0002 According to a further aspect, the present invention relates to a method for producing the composite material.

Protective structure for pouch cell battery

Resumen de: GB2704039A

A protective structure for a pouch cell battery, comprising a base 30, a top cover 50, and two terminal covers 50. The base supports a battery cell module, the top cover is connected to the base, and the terminal covers are connected to both ends of the base and the top cover. The base and top cover enclose the battery module 10, and the terminal covers enclose the battery module and bus structures 20. The terminal covers consist of an outer shell 52, having a central through hole 53, and an insulating interface 54. The outer shell, base and top cover are made of flame-retardant, thermally conductive, impact resistant metal material. Each insulating interface is a shell-like structure made of an insulating and thermally conductive plastic material and positioned adjacent to a supporting seat of the busbar structure on the side connected to the busbars so that it isolates the busbars from the outer shell. Each insulating interface includes a thermal conduction element 55 protruding towards the adjacent bus structure and aligned with the through-hole. A thermally conductive adhesive is applied between each terminal cover and adjacent bus structure. Fig 2

POSITIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: EP4794021A1

Described is a positive electrode including a current collector, a first positive electrode active material layer on the current collector, and a second positive electrode active material layer on the first positive electrode active material layer. The first positive electrode active material layer includes a first positive electrode active material including a lithium iron phosphate-based compound. The second positive electrode active material layer includes a second positive electrode active material including a lithium iron phosphate-based compound and an oxide-based solid electrolyte. The oxide-based solid electrolyte is included in an amount in a range of about 0.1 wt% to about 3.0 wt% based on 100 wt% of a total of the second positive electrode active material layer.

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY

Resumen de: EP4794023A1

0001 A cathode active material for a lithium secondary battery according to the present disclosure includes lithium-metal oxide particles and a coating part formed on the lithium-metal oxide particles and including a metal-containing part and a sulfur-containing part. A metal area ratio of the cathode active material according to a specific equation may fall within a predetermined range. Accordingly, side reactions between the cathode active material and the electrolyte may be suppressed, and the stability and cycle life characteristics of the secondary battery may be improved.

BATTERY, METHOD OF MANUFACTURING BATTERY, AND BATTERY MODULE/PACK

Resumen de: EP4794071A1

A battery (10) includes a plurality of electrode assemblies (30) each having a positive electrode plate and a negative electrode plate, each of the positive electrode plate and the negative electrode plate having an electrode tab (31), a battery can (20) having a plurality of compartment spaces (25) that accommodate each of the plurality of electrode assemblies (30) and expose each electrode tab (31) to an outside, and a cap assembly (40) fixed to the battery can (20) to seal the plurality of compartment spaces (25), the cap assembly (40) being electrically connected to each electrode tab (31).

CONTROL SYSTEM

Resumen de: EP4793082A1

A control system includes: a communication device that acquires information indicating the step currently being performed in a vehicle in the manufacturing process of the vehicle; a server that determines the mode of ripple heating control based on the information acquired by the communication device; and a vehicle control unit that performs ripple heating based on the mode determined by the server.

POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE POSITIVE ELECTRODE

Resumen de: EP4794004A1

0001 A positive electrode for a rechargeable lithium battery includes a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector. The positive electrode is a rectangle shape having a horizontal length that is longer than its vertical length and having upper and lower sides that are equal length. The positive electrode active material layer includes two trapezoidal patterns formed in its surface. The two trapezoidal patterns have short sides that are adjacent to each other, and long sides of the two trapezoidal patterns are adjacent to the upper and lower sides of the positive electrode active material layer.

METHOD AND DEVICE FOR MANUFACTURING ELECTRODE ASSEMBLY FOR SECONDARY BATTERY

Resumen de: EP4793999A1

A method and apparatus for manufacturing an electrode assembly for secondary batteries. The method includes: a notching step comprising notching at least one side of each electrode plate of a plurality of electrode plates to form at least one substrate tab on each electrode plate of the plurality of electrode plates; an inspection step comprising primarily selecting a defective product from among the electrode plates each having the at least one substrate tab, a marking step comprising removing a portion of the at least one substrate tab of the electrode plate of the plurality of electrode plates that has been primarily selected as the defective product, and a final inspection step comprising detecting the electrode plate from which the portion of the at least one substrate tab has been removed to secondarily select the defective product.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4793996A1

0001 An electrode assembly, including a plurality of first electrode plates, a plurality of second electrode plates spaced apart from the plurality of first electrode plates, separators between the plurality of first electrode plates and the plurality of second electrode plates, and first electrode tabs connected to the plurality of first electrode plates, wherein the first electrode tabs include a plurality of first inner electrode tabs connected to some of the plurality of first electrode plates and a plurality of first outer electrode tabs connected to others of the plurality of first electrode plates, the plurality of first inner electrode tabs and the plurality of first outer electrode tabs being spaced apart from the plurality of first electrode plates.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4794034A1

0001 An electrode assembly (100) includes first and second electrodes (110, 120), and a separator (130), the first electrode (110) including a first substrate (S1) including a first active material layer (AM1) and a first non-coated part (NC1), a second substrate (S2) including a first active material layer (AM1) and a second non-coated part (NC2), a first central substrate (CS1) between the other surface of the first substrate (S1) and the other surface of the second substrate (S2), and a first substrate tab (ST1) extending from one end of the first central substrate (CS1), wherein the second electrode (120) includes a third substrate (S3) including a second active material layer (AM2) and a third non-coated part (NC3), a fourth substrate (S4) including a second active material layer (AM2) and a fourth non-coated part (NC4), a second central substrate (CS2) between a portion of the other surface of the third substrate (S3) and the fourth substrate (S4), and a second substrate tab (ST2) extending from one end of the second central substrate (CS2).

POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: EP4794011A1

Provided are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery has a structure in which a positive electrode current collector, a functional layer, and a positive electrode active material layer are stacked. The functional layer includes a lithium iron phosphate-based compound and a binder.

HEAT DISSIPATION DEVICE AND ELECTRIC CONNECTION BOX, ELECTRIC ENERGY STORAGE DEVICE AND VEHICLE COMPRISING SUCH A DISSIPATION DEVICE

Resumen de: EP4794167A1

0001 Dispositif de dissipation thermique, notamment pour véhicule automobile, ledit dispositif comprenant un premier organe d'interface thermique (30) destinée à être en relation d'échange thermique avec un organe électrique (14) de chacune de deux sources chaudes (10a, 10b), ledit dispositif étant configuré pour un échange thermique entre ledit premier organe d'interface thermique (30) et une source froide (20), ledit premier organe d'interface thermique (30) comprenant un premier boîtier (32) rempli au moins en partie d'un fluide diélectrique pour un échange thermique entre lesdites sources chaudes (10a, 10b) par l'intermédiaire du fluide diélectrique, ledit premier boîtier (32) étant configuré pour isoler électriquement les organes électriques (14) desdites sources (10a, 10b) chaudes entre eux.

TEMPERATURE CONTROL PLATE FOR CONNECTION TO A BATTERY HOUSING, BATTERY HOUSING FOR A MOTOR VEHICLE AND METHOD FOR PRODUCING A BATTERY HOUSING

Resumen de: EP4793406A1

0001 Die Erfindung betrifft eine Temperierplatte (1) zur Verbindung mit einem Batteriegehäuse (8) eines Kraftfahrzeugs, aufweisend eine Temperierkanalstruktur (2) mit wenigstens einer Temperierkanalprofilierung (3), wobei die Temperierplatte (1) aus einem Mangan-Bor-Stahlblech (22) hergestellt und warmgeformt ist, wobei die Temperierplatte (1) außenseitig eine Aluminium-Legierungsschicht aufweist, wobei die Temperierplatte (1) eine Zugfestigkeit Rm > 1.000 MPa und ein Martensitgefüge aus wenigstens 50 Vol.-% Martensit aufweist. 0002 Die Erfindung betrifft weiterhin ein Batteriegehäuse aufweisend eine erfindungsgemäße Temperierplatte sowie ein Verfahren zur Herstellung eines entsprechenden Batteriegehäuses.

BATTERY CELL COOLING MEMBER, BATTERY MODULE, AND BATTERY COOLING SYSTEM

Resumen de: EP4794058A1

0001 A battery cell cooling member is arranged between adjacent battery cells and includes two facing plates formed on an inner side between the battery cells to face the battery cells, respectively, and an elastic pad between the two facing plates and having a cooling path.

VENTING SYSTEM

Resumen de: EP4793174A1

An aircraft has an energy storage system comprising a first battery 6a comprising first and second battery modules 10, 11. A venting system 7 is provided comprising a first battery module exhaust 18, a second battery module exhaust 19 and a first battery manifold 20 arranged to connect the first and second battery module exhausts to a first flow path extending to an exhaust port 8 of the aircraft. The first battery manifold 20 includes a first valve 28 comprising a first flap 29 having a first position in which fluid flow from one of the first and second battery module exhausts is restricted; a second position in which fluid flow from the other of the first and second battery module exhausts is restricted; and a neutral position in which fluid can flow from both first and second battery module exhausts to the first flow path. The first valve 28 is biassed towards the neutral position. The venting system of the present invention is more lightweight than was hitherto achievable, protects other modules and components of the energy storage system from the heat of gas emissions and reduces pressure losses, so that the emitted gas is more likely to exit the aircraft, typically via a burst disc

NOTCHING MOLD AND METHOD FOR NOTCHING AN ELECTRODE PLATE

Resumen de: EP4793008A1

0001 A notching mold (10) comprises a lower plate(110); an upper plate (120) disposed above the lower plate (110); a die plate (410) disposed on the lower plate (120) and supporting a die (420); the die (420); a punch plate (510) between the upper plate (120) and the die plate (410); a punch pusher (530) between the upper plate (120) and the die plate (410); a punch (520) below the punch plate (510) and the punch pusher (530) and above the die plate (410); and a guide post (700) connected to the die plate (410) and the punch (520), wherein the die (420) comprises an opening (OP), wherein the punch (520) is coupled with the punch plate (510), wherein the punch (520) comprises a first region (1A) configured to be inserted into the opening (OP) and a second region (2A) disposed outside the opening (OP), and wherein the guide post (700) is configured to guide movement of the punch (520).

BATTERY PROTECTION PLATE, BATTERY PACK, AND VEHICLE

Resumen de: EP4793035A1

0001 A battery protection plate (100), a battery pack, and a vehicle are provided, which relate to the technical field of battery packs. The battery protection plate (100) includes a base layer (1) and an energy-absorbing layer (2). The energy-absorbing layer (2) is arranged on a side of the base layer (1). A tensile strength and an elastic modulus of the base layer (1) are greater than a tensile strength and an elastic modulus of the energy-absorbing layer (2), and an elongation at break of the energy-absorbing layer (2) is greater than an elongation at break of the base layer (1).

POSITIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND BATTERY

Resumen de: EP4794020A1

0001 A positive electrode active material includes a secondary particle (2), wherein: the secondary particle (2) includes a first particle group, a second particle group, and a carbon layer (1c); each of the first particle group and the second particle group is composed of primary particles (1); the first particle group has a larger average particle diameter than the second particle group; the primary particles contain an olivine-type compound; the carbon layer (1c) covers at least part of a surface of the primary particle (1) and satisfies a relationship of T < T where T represents an average thickness of the carbon layer (1) on the primary particles (1) belonging to the first particle group; and T represents an average thickness of the carbon layer (1c) on the primary particles (1) belonging to the second particle group.