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SECONDARY BATTERY

Resumen de: EP4614666A2

The present disclosure provides a secondary battery which prevents occurrence of pattern short circuit during laser welding of a protection circuit board. As an example, disclosed is a secondary battery comprising: a case that accommodates an electrode assembly including a plurality of first electrode plates coated with a first active material, a plurality of second electrode plates coated with a second active material, and a separator positioned between each of the first electrode plates and each of the second electrode plates; lead tabs connected to the first electrode plates and the second electrode plates, respectively, and protruding to the outside of the case; and a protection circuit board electrically connected to the lead tabs, wherein the protection circuit board may include a blank region formed along the edge of a cell seating region on which the lead tabs are seated.

LITHIUM MANGANESE IRON PHOSPHATE POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY

Resumen de: EP4614619A1

The present disclosure relates to the field of lithium-ion batteries, and discloses a lithium manganese iron phosphate cathode material, a preparation method therefor, and a lithium-ion battery thereof. A microcrystalline size Dx at (020) characteristic peak of the cathode material measured by XRD and an individual particle size Ds of the cathode material measured by SEM satisfy: 2.0≤Ds/Dx≤4.0. The lithium manganese iron phosphate cathode material can solve the technical problems associated with existing lithium manganese iron phosphate materials, such as poor kinetic diffusion capability and low high-rate charge/discharge performance.

CYLINDRICAL BATTERY AND PREPARATION METHOD THEREFOR

Resumen de: EP4614686A1

The present disclosure provides a cylindrical battery and a preparation method therefor, and relates to the technical field of batteries. The cylindrical battery provided by the present disclosure includes wound cores, a housing, an upper cover plate, and a lower cover plate, wherein at least two wound cores are provided; the (n+1)-th wound core is wound on an outer side wall of the n-th wound core, where n is an integer larger than or equal to 1; the housing is spaced between neighboring wound cores; the housing is wound around an outer side wall of an outermost wound core; the upper cover plate is located on an upper bottom surface of the wound cores; the lower cover plate is located on a lower bottom surface of the wound cores; and the upper cover plate and the lower cover plate are connected to the housing respectively in a sealed manner, so that each of the wound cores is in a separate sealing space. The cylindrical battery has good heat dissipation performance, which avoids the phenomenon of thermal "cohesion" in the battery; and the electrolytes with different functions can be injected into different wound cores, thereby avoiding the phenomenon of performance degradation due to the non-uniformity of battery, so as to improve the service life of the battery.

BARE CELL CASING PRODUCTION LINE AND BATTERY CELL PRODUCTION LINE

Resumen de: EP4613678A1

A bare cell encasing production line and a cell production line are provided, relating to the field of battery technology. The bare cell encasing production line includes a bare cell conveying module (1), a cladding material conveying module, and an assembly module. The bare cell conveying module is configured to convey a bare cell; an output end of the cladding material conveying module and the bare cell conveying module are both connected to the assembly module, and the assembly module is configured to assemble the bare cell conveyed by the bare cell conveying module with a cladding material conveyed by the cladding material conveying module; the cladding material conveying module includes a shell material conveying submodule (4); the shell material conveying submodule includes a shell material feeding mechanism (41), at least two shell material preparation assemblies (42), an infeed conveyor line (43), and a transfer mechanism; and the transfer mechanism can lift a shell material preparation assembly from the infeed conveyor line and convey the shell material preparation assembly to one side of the infeed conveyor line. The bare cell encasing production line is configured for bare cell encasing.

PROTECTION CIRCUIT MODULE AND BATTERY MODULE COMPRISING THE SAME

Resumen de: EP4614665A1

Disclosed are a protection circuit module and a battery module capable of detecting a trigger cell in which heat propagation occurs within the battery module, even when heat propagation occurs in a battery cell that does not have a temperature sensor. The protection circuit module includes: a substrate; a wire disposed on the substrate to form an opening in at least a portion of the wire and the wire including a first metal; a solder including a second metal having a melting point lower than a melting point of the first metal and the second metal being inserted into at least a portion of the opening to join end of the wire separated by the opening; and a cover forming at least one hole and covering at least a portion of the solder.

BATTERY PACK

Resumen de: EP4614629A1

A battery pack is provided with a tape unit and battery cells disposed on both sides of the tape unit. The battery cells include a first battery cell group disposed on a first surface of the tape unit, and a second battery cell group disposed on a second surface of the tape unit, wherein the battery cells in the first battery cell group are arranged alternately with the battery cells in the second battery cell group with respect to a direction of the tape unit. The tape unit is folded in a zigzag manner to form a battery cell stack.

COATING DEVICE

Resumen de: EP4613385A1

The present disclosure discloses a coating device. The coating device includes a coating roller, a scraping roller, and a blocking assembly. The scraping roller and the coating roller are arranged side by side, and a gap is provided between the scraping roller and the coating roller to allow a slurry to pass through. The blocking assembly is arranged at an outer side of the coating roller and an outer side of the scraping roller. The blocking assembly includes a support and a blocker mounted at the support. The blocker includes a cooperation portion cooperating with the coating roller and an engagement portion cooperating with the scraping roller. A first end of the cooperation portion and a first end of the engagement portion are connected and form an angle portion. The angle portion extends into the gap. A second end of the cooperation portion is located away from a second end of the engagement portion to form a first angle between the cooperation portion and the engagement portion. The first angle is adjustable.

ELECTROCHEMICAL DEVICE INCLUDING POROUS SEPARATOR

Resumen de: EP4614641A1

Electrochemical devices are disclosed for various applications such as secondary batteries. In an embodiment, an electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator includes a porous membrane including a core-shell structure that includes formed on at least one polyolefin strand. The coating shell includes one or more of a hydrophilic inorganic material or a hydrophilic polymer. The electrolyte includes a nitrile-based compound. The electrochemical device exhibits high ionic conductivity by including the porous separator having wettability to the electrolyte.

NEGATIVE ELECTRODE MATERIAL, AND PREPARATION METHOD AND USE THEREOF

Resumen de: EP4614588A2

The present disclosure provides a negative electrode material, and a preparation method and use thereof. The negative electrode material comprises a silicon-carbon inner core. The silicon-carbon inner core comprises a porous silicon matrix and a carbon material arranged in the pores of the porous silicon matrix. The total pore volume of the silicon-carbon inner core is less than or equal to 0.0001 ml/g. The silicon-carbon inner core in the negative electrode material provided in the present disclosure has a dense structure, to reduce the specific surface area of the negative electrode material, and improve the mechanical strength and the specific capacity of the negative electrode material, thus facilitating the wide use of the negative electrode material.

PORTABLE MEDICAL DEVICE CASE

Resumen de: EP4614704A1

The present disclosure relates to a portable medical device case including a main body provided with a battery accommodation space inside, a cover detachably coupled to the main body to open and close the battery accommodation space, and a hole penetrating at least a part of the main body, wherein in a state where the cover is coupled to the main body, a part of the cover is located inside the main body, and the hole accommodates an external tool which presses a part of the cover to separate the cover from the main body.

ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY INCLUDING THE SAME

Resumen de: EP4614639A1

An electrode assembly includes a first electrode having a first electrode uncoated portion with a protruding shape, a second electrode having a second electrode uncoated portion with a protruding shape, and a separator disposed between the first electrode and the second electrode, wherein the first electrode uncoated portion includes a first inner tab and a first outer tab separated by a cut line provided inside the first electrode uncoated portion, and wherein the second electrode uncoated portion includes a second inner tab and a second outer tab separated by a cut line provided inside the second electrode uncoated portion.

ANODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY

Resumen de: EP4614600A1

An anode active material according to embodiments of the present disclosure includes silicon oxide particles. A ratio of the peak intensity in a region of 500 nm^-1 to 530 nm^-1 to the peak intensity in a region of 450 nm^-1 to 490 nm^-1, which are measured in a Raman spectrum of the silicon oxide particles is 3.0 to 4.5, and a crystallite size of a (111) plane of the silicon oxide particles is a crystallite size or more of a (220) plane, which are obtained through X-ray diffraction (XRD) analysis.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: EP4614711A1

The present disclosure relates to a separator for an electrochemical device, and an electrochemical device including the same, and more particularly, to a separator for an electrochemical device including a boron nitride-based compound in a coating layer, thereby adsorbing transition metal ions eluted from an electrode to an electrolyte liquid, and improving heat resistance of the separator, and an electrochemical device including the same.

BUSBAR ASSEMBLY AND BATTERY PACK INCLUDING SAME

Resumen de: EP4614700A1

A busbar assembly according to one embodiment of the present disclosure comprises: a first busbar and a second busbar arranged side by side with each other, wherein the first busbar and the second busbar respectively includes a body portion and an end portion extending from both ends of the body portion and having a through hole formed therein; a first insulating layer that surrounds an outer peripheral surface of the first busbar; a second insulating layer that surrounds an outer peripheral surface of the second busbar; and a cap that simultaneously surrounds the end portion of the first busbar and the end portion of the second busbar, which are adjacent to each other.

SYSTEM AND METHOD FOR MONITORING BATTERY SWELLING

Resumen de: EP4614671A1

A battery pack (10) includes a plurality of battery cells (100) stacked in a stacking direction (S) and forming a battery cell stack (105), a first end plate (110) arranged at a first end of the battery cell stack (105), a second end plate (120) arranged at a second end of the battery cell stack (105), connection elements (130) connecting the first and second end plates (110, 120), and a sensor (150) arranged at the battery pack (10), the sensor (150) configured to measure an extension or a shortening of a distance between the first and second end plates (110, 120). A method for measuring a battery cell swelling of a battery pack and a battery are also disclosed.

A METHOD FOR OPERATING AN ENERGY STORAGE SYSTEM, AN ENERGY STORAGE RACK, OR AN ENERGY STORAGE MODULE

Resumen de: EP4614760A1

In order to mitigate thermal effects on the aging of energy storage cells (18), the invention proposes a method for operating an energy storage module (16) having multiple energy storage cells (18) in order to mitigate thermal aging effects on the energy storage cells (18), the method comprising:a) obtaining a cell lifetime for at least one each energy storage cell (18), wherein the cell lifetime depends at least on thermal effects and voltage effects; andfor each energy storage cell (18):b) determining a thermal cell aging factor, that is indicative of an aging process of the energy storage cell (18) due to thermal effects;c) determining a voltage offset required to obtain the lifetime obtained in step a); andd) activating balancing of the respective energy storage cell (18) based on the voltage offset obtained in step c).

CARBON NANOTUBE DISPERSION AND METHOD FOR PREPARING SAME

Resumen de: EP4613706A1

The present invention relates to a carbon nanotube dispersion comprising carbon nanotubes, a first dispersant containing nitrogen atoms, a second dispersant containing the compound represented by Formula 1, and a solvent, and a method for preparing the same. The content of the compound represented by the Formula 1 is as defined in the specification.

EARPHONE

Resumen de: EP4615001A1

The present disclosure provides an earphone. The earphone includes a host module and an ear hook. The ear hook includes a first end and a second end disposed opposite to each other, and the first end is connected to the host module. The ear hook is configured to be hooked on a user's ear. The ear hook includes an elastic framework, a covering member, and a fixing block. The elastic framework extends along an extension direction from the first end to the second end. The covering member includes a front covering section and a rear covering section. The front covering section and the rear covering section are connected to each other along the extension direction. The fixing block is disposed at one end of the elastic framework away from the first end. The front covering section covers the elastic framework and the fixing block. The rear covering section does not cover the elastic framework and the fixing block, and is located downstream to the fixing block along the extension direction. An extension length of the rear covering section along the extension direction is greater than or equal to an extension length of the fixing block along the extension direction.

EARPHONE

Resumen de: EP4615000A1

The present disclosure relates to an earphone (100), comprising a housing component (10) configured to form an accommodation space (101) and having a first direction and a second direction orthogonal to the first direction, wherein the housing component (10) further has a first end (102) and a second end (103) arranged opposite to each other along the first direction; an ear hook (2) connected with the housing component (10), wherein in a wearing state, the ear hook (2) is at least partially located at a rear side of an ear of a user, the housing component (10) is located at a front side of the ear of the user along the second direction, and the first end (102) of the housing component (10) at least partially extends into a cavum concha (502) of the ear of the user; a loudspeaker (13) disposed in the accommodation space (101) and configured to provide sound to the ear of the user; wherein in the wearing state, an outer wall surface of the housing component (10) facing the ear of the user is arranged in an arch shape away from the ear of the user in the first direction.

BATTERY TOP COVER WELDING SYSTEM AND BATTERY TOP COVER WELDING METHOD

Resumen de: EP4613418A1

A battery top cap welding system and a battery top cap welding method are provided. The battery top cap welding system includes a transport module and a processing module. The transport module includes a battery fixture and a power mechanism, where the battery fixture is configured to clamp both a housing (012) and a top cap (011) of a to-be-welded battery (01) to maintain relative positions of the top cap (011) and the housing (012); and the battery fixture is disposed on an output end of the power mechanism so as to move, driven by the output end of the power mechanism, to transport the to-be-welded battery (01). The processing module includes a cleaning processing submodule, a press-fitting processing submodule (4), and a spot-welding processing submodule (6), where the cleaning processing submodule, the press-fitting processing submodule (4), and the spot-welding processing submodule (6) are all disposed at an output end of the corresponding transport module. The processing module includes a clamping tool, where the clamping tool is configured to clamp both the housing (012) and the top cap (011) to maintain the relative positions of the top cap (011) and the housing (012).

DIMENSION MEASURING APPARATUS AND DIMENSION MEASURING METHOD

Resumen de: EP4614107A1

The present application relates to a dimension detection device and a dimension detection method. The dimension detection device includes: a frame, a detection area being disposed on the frame; two first dimension detection apparatuses disposed on the frame, the two first dimension detection apparatuses being positioned on two opposite sides of the detection area; and two second dimension detection apparatuses disposed on the frame, the two second dimension detection apparatuses being positioned on other two opposite sides of the detection area. The first dimension detection apparatus includes a first motion apparatus and a first image acquisition assembly, and the first motion apparatus is capable of driving the first image acquisition assembly to move. The second dimension detection apparatus includes a second motion apparatus and a second image acquisition assembly, and the second motion apparatus is capable of driving the second image acquisition assembly to move. The above dimension detection device is a device applied for geometric tolerance detection on each surface of a large-dimension product, enabling comprehensive dimension information collection and detection, thereby improving detection accuracy to some extent.

WELDING TESTING DEVICE AND WELDING TESTING METHOD

Resumen de: EP4614135A1

The embodiments of the present application provide a welding detection apparatus and a welding detection method. The welding detection apparatus includes: used for detecting a weld seam (3) between a case (11) and a top cover (12) of a battery (1), and the welding detection apparatus includes: an image acquisition component (2) configured to shoot the weld seam (3), the image acquisition component (2) being located obliquely above an outer side of the weld seam (3) and forming an included angle (α) with a height direction (z) of the battery (1); and a controller configured to obtain a protruding height (H) of the weld seam (3) relative to a reference surface area on an outer side wall of the case (11) according to a first distance (H1) between the image acquisition component (2) and the outer side wall of the case (11), a second distance (H2) between the image acquisition component (2) and the weld seam (3), and the included angle (α), and compare the protruding height (H) with a preset height threshold to determine whether the protruding height of the weld seam (3) is qualified.

NEGATIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY

Resumen de: EP4614598A1

An anode material and a preparation method thereof, and a lithium ion battery. The anode material includes a core and a compound layer located on at least partial surface of the core; and the core includes graphite, and the compound layer includes a carbonaceous material and a non-carbonaceous material. As for the anode material, by means of a synergistic effect of the carbonaceous material and the non-carbonaceous material in the compound layer, a specific surface value of the anode material can be reduced, the interface stability of the anode material can be enhanced, the wettability of electrolyte can be improved, an interface side reaction can be reduced, and the lithium ion transmission efficiency can be improved, thereby improving the electrochemical performance of the anode material.

BATTERY PACK

Resumen de: EP4614702A1

The present technology provides a battery assembly including: a cell block with a plurality of battery cells and a first cover plate covering a first surface of the cell block; and a pack housing configured to accommodate the battery assembly and including a first housing plate facing the first cover plate of the battery assembly, in which the first housing plate includes a first flat part and a first protruding part protruding from the first flat part in a direction away from the cell block, and the first cover plate includes a second flat part vertically overlapping the first protruding part of the first housing plate, a second protruding part protruding from the second flat part in a direction away from the cell block, and a cooling channel defined by the second protruding part.

BATTERY PACK AND VEHICLE INCLUDING SAME

Nº publicación: EP4614709A1 10/09/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: EP4614709A1

Disclosed is a battery pack and a vehicle including the same. The battery pack includes a plurality of battery cells; and a pack case configured to accommodate the plurality of battery cells and having a pack venting portion for venting flame or gas, and a cell venting portion is formed in the battery cell itself, and when the cell venting portion of the battery cell and the pack venting portion of the pack case are communicated.