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Absstract of: 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.
Absstract of: EP4794095A1
0001 A battery case for a secondary battery having a gas discharge valve provided on one flat surface, wherein the gas discharge valve comprises a first thin portion having a thickness smaller than that of the flat surface and a second thin portion formed on a surface of the first thin portion, and having a thickness even smaller than that of the first thin portion, and a residual stress at the first thin portion is greater than that at the second thin portion.
Absstract of: EP4794009A1
0001 A main object of the present disclosure is to provide a cathode layer for a lithium ion battery, with which the resistance increase of a battery due to charge and discharge can be suppressed. The present disclosure achieves the object by providing a cathode layer to be used in a lithium ion battery, the cathode layer including: single crystalline active material configured by a crystalline primary particle containing Li, TM, which is a transition metal, and O as a cathode active material, wherein in a cross-section observation image of the cathode layer by a scanning electron microscope, the single crystalline active material includes a long side and a short side, an angle formed by the long side and the short side is 60° or more and 120° or less, and an aspect ratio which is a ratio of length of the long side to the short side is 1.2 or more, the long side of the single crystalline active material extends along (003) surface, and a ratio N/N of a number N of the single crystalline active material of which inclination of the long side direction to in-plane direction of the cathode layer is 0° or more and 30° or less, with respect to a number N of the single crystalline active material is 50% or more.
Absstract of: 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.
Absstract of: EP4792963A1
0001 An apparatus for cutting a secondary battery can includes a support fixedly supporting a molded battery can product having a removal target portion, a cutter having an incision blade inserted into the molded battery can product, the cutter being configured to incise a portion of the removal target portion, and a cutting blade configured to continuously cut from the portion of the removal target portion incised by the incision blade, and a cutter driver that moves the cutter and causes the incision blade to move along a linear path perpendicular to an inner wall of the molded battery can product, resulting in a cutting start incision portion on the inner wall, the cutter driver causing the cutting blade to cut from the cutting start incision portion.
Absstract of: EP4794107A1
An electrode assembly may include a first electrode having a first electrode tab, a second electrode disposed on the first electrode and having a second electrode tab, a first pass electrode disposed on the second electrode and having a first pass electrode tab electrically connected to the first electrode tab, and a separator disposed between the first electrode and the second electrode or between the second electrode and the first pass electrode.
Absstract of: EP4794010A1
A cathode active material including: an active material 1 comprising secondary particles; and an active material 2 comprising single particles, wherein the active material 1 and the active material 2 have a bimodal particle diameter distribution, respectively, the active material 1 has an average particle diameter (D50) of 9 µm to 17 µm, and the active material 2 has an average particle diameter (D50) of 2.5 µm to 4 µm, is disclosed.In some implementations, a cathode active material having high packing density may be provided.
Absstract of: 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).
Absstract of: 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.
Absstract of: 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.
Absstract of: EP4793574A1
0001 The present disclosure proposes a connecting device that connects an expansion valve and a cooling device, the connecting device comprising: an inlet pipeline, the inlet pipeline being in fluid connection with an expansion valve outlet; a first outlet pipeline, the first outlet pipeline comprising a first outlet end and a first inlet end connected to the inlet pipeline. An injection part is provided in the inlet pipeline, the injection part having a blocking part that extends in a cross section of the inlet pipeline and an injection port that is partitioned by the blocking part. 0002 The present disclosure further proposes a thermal management circuit, comprising an expansion valve, which comprises an expansion valve outlet; a cooling device, which comprises a first cooling flow path; and the connecting device according to an embodiment of the present disclosure. The inlet pipeline of the connecting device is in fluid connection with the expansion valve outlet, and a first outlet end of the first outlet pipeline of the connecting device is connected to the first cooling flow path.
Absstract of: EP4794079A1
0001 A battery pack includes a pack housing, a plurality of battery cells accommodated in the pack housing and including terminals protruding to a side, and a busbar-film assembly including a plurality of first busbars to allow the terminals of a pair of battery cells located adjacent to each other among the plurality of battery cells to be electrically connected, a first film and a second film coupled to each other with the plurality of first busbars arranged therebetween, and a first deformation area deformable by an external force between a pair of first busbars adjacent to each other among the plurality of first busbars.
Absstract of: EP4794022A1
0001 A positive electrode active material includes a secondary particle (2), wherein: the secondary particle (2) includes a first particle group and a second particle group; each of the first particle group and the second particle group is composed of primary particles (1); the second particle group has a larger average particle diameter than the first particle group; the first particle group and the second particle group are dispersed in each other in the secondary particle (2); the primary particles (1) belonging to the first particle group contain a first olivine-type compound; the primary particles (1) belonging to the second particle group contain a second olivine-type compound; and the second olivine-type compound has a lower Mn compositional ratio than the first olivine-type compound.
Absstract of: 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
Absstract of: EP4794016A1
0001 An anode configured to decrease the rate of area increase in planar direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is more than 35%.
Absstract of: 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).
Absstract of: 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).
Absstract of: EP4794014A1
0001 An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a first carbon material having an aspect ratio of more than 1, and a second carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; the second carbon material is second carbon material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of those that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is 62% or more.
Absstract of: 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
Absstract of: EP4793233A1
A carbon composite material configured to suppress a decrease in the charge and discharge capacity of batteries, the carbon composite material comprising Si and a carbon material having an aspect ratio of 2.7 or more and 7.5 or less.
Absstract of: EP4794065A1
A manufacturing method for a rechargeable battery (1), the manufacturing method including manufacturing a case (10) having an opening on a first side, inserting an electrode assembly (30) into the case (10) through the opening, and coupling a cap assembly (50) to the first side, wherein manufacturing the case (10) includes manufacturing a first intermediate material (10') having an internal accommodation space (11) and an open first side, manufacturing a second intermediate material (10") by forming a plurality of holes (1130) on a second side opposite to the first side of the first intermediate material (10'), and coupling a first electrode terminal (150) to the second side of the second intermediate material (10").
Absstract of: EP4794015A1
An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and wherein, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 0° or more and less than 45°, is more than 52%.
Absstract of: EP4794028A1
A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. In a cross section of the first active material layer, the polymer material forms a plurality of island-shaped regions and is dispersed therein. When the first active material layer is increased in temperature from 25°C to 400°C or higher, the area of the island-shaped regions increases to four times or more in the cross section of the first active material layer.
Absstract of: US2025121536A1
0000 A thermally conductive interface device produced from a thermally conductive interface material is disclosed. The device may be employed in a battery system of an electric or hybrid vehicle. The thermally conductive interface material comprises a composition of at least one silicone base, at least one inorganic filler, at least one silicone oil, a least one peroxide cross-linking agent, and/or at least one of a flame retardant and a colorant. The inorganic fillers and/or the silicone oils may be functionalized or non-functionalized. The silicone base may be a high consistency rubber (HCR) silicone.
Nº publicación: EP4794030A1 19/08/2026
Applicant:
PANASONIC IP MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd.
Absstract of: EP4794030A1
A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. The polymer material has a linear structure.
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