Alerta

LITHIUM SECONDARY BATTERY HAVING IMPROVED SAFETY AGAINST INTERNAL SHORT CIRCUIT AND LITHIUM SECONDARY BATTERY SYSTEM THEREFOR

Resumen de: EP4542680A1

The present invention relates to a lithium secondary battery and a lithium secondary battery system for the same, wherein the lithium secondary battery has a negative electrode having a predetermined volume resistance, thereby enabling a predetermined current to flow while realizing insulation on the surface of the negative electrode in the event of an internal short circuit, thereby preventing a meltdown phenomenon and/or rapid heat generation of the lithium secondary battery due to an internal short circuit. Furthermore, since the lithium secondary battery system according to the present invention, including the lithium secondary battery of the present invention described above, is capable of preventing a meltdown phenomenon and rapid heat generation in the event of an internal short circuit, it is possible to proactively control the operation of the lithium secondary battery before a thermal runaway of the lithium secondary battery occurs, and to prevent further meltdown phenomena and/or thermal runaway occurring in neighboring lithium secondary batteries, thereby improving safety problems caused by an internal short circuit.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4542762A1

The embodiments of the present disclosure provide a battery cell (10), battery (100), and an electrical equipment. The battery cell (10) includes a housing (11) and a first insulating member (3). The housing (11) provides a welding mark region (111). The first insulating member (3) is arranged on an outer surface of the housing (11), and the first insulating member (3) provides a first thickened region (31), wherein the first thickened region (31) covers at least a portion of the welding mark region (111). This reduces the risk of the welding mark region (111) piercing through the first insulating member (3), which could cause insulation failure of the battery cell (10). Thus, the insulation performance of the battery cell (10) is improved.

ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY INCLUDING THE SAME

Resumen de: EP4542701A1

An electrode assembly includes: an assembly in which a first electrode, a separator overlapping the first electrode, and a second electrode overlapping the separator are alternately stacked; and a shape maintaining member at one side of the assembly where end portions of the first electrode, the separator, and the second electrode are exposed, wherein the shape maintaining member is a distance (e.g., a set or predetermined distance) away from both side surfaces of the assembly that are at both sides around the shape maintaining member.

FLUID TRANSPORT PIPE

Resumen de: EP4542732A1

Disclosed is a fluid transport pipe with excellent assembly property, cooling property, condensation prevention performance. The fluid transport pipe includes a main pipe having a shape elongated in one direction and configured to have a main flow path formed therein in a longitudinal direction so that a branch hole is formed in the middle of the main flow path; and a branch pipe having a branch flow path formed therein and configured to be detachable in a portion where the branch hole of the main pipe is formed.

BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4542763A1

The present application provides a battery cell, a battery and an electrical apparatus. The battery cell comprises: an end cover assembly, comprising an electrode terminal; a housing, provided with an opening, the end cover assembly closing the opening; an electrode assembly, provided in the housing and comprising a tab; an adapter component, connected between the tab and the electrode terminal, the adapter component comprising a first connecting area used for connecting the electrode terminal, a second connecting area used for connecting the tab and a transition connecting area located between the first connecting area and the second connecting area; and an insulating member, covering at least part of the transition connecting area. According to embodiments of the present application, the transition connecting area of the adapter component is covered by the insulating member, so that the service life and safety performance of the battery cell can be improved.

DEVICE FOR HANDLING COMPONENTS

Resumen de: EP4542743A1

Die Erfindung betriff Vorrichtung zum Handhaben von Bauteilen, insbesondere zylindrischen Batteriezellen, mit einer Magazineinrichtung (80), die ein Trägerelement (54) und zumindest zwei darauf angeordnete Magazine (40, 42) aufweist, wobei jedes Magazin verlagerbar, vorzugsweise drehbar, auf dem Trägerelement (54) gehalten ist und jeweils eine Aufnahmeeinheit (82) mit mehreren Aufnahmeplätzen (84) für jeweils ein Bauteil (16, 18) aufweist, einer ersten Antriebseinheit (98), die vorzugsweise mit dem Trägerelement (54) gekoppelt ist, um ein Magazin in eine erste Position (41), Befüllposition, und in eine zweite Position (43), Übergabeposition, zu bewegen; und einer Befülleinheit (36), die ausgelegt ist, ein Bauteil in einen Aufnahmeplatz (84) des in der Befüllposition positionierten Magazins (40) zu bringen; wobei jedem Aufnahmeplatz (84) ein erstes Element (86) zur seitlichen Abstützung eines Bauteils und ein zweites Element (88) zur senkrechten Abstützung des Bauteils (16, 18) zugeordnet ist; undwobei das erste Element (86) und das zweite Element (88) relativ zueinander verlagerbar sind, um das im Aufnahmeplatz (84) gehaltene Bauteil aus der Aufnahmeposition in eine Übernahmeposition zu bringen, in der das Bauteil von einer nachgeordneten Handhabungseinrichtung (46, 44) aufnehmbar ist. Die Erfindung betrifft ferner eine Vorrichtung zum Umsetzen von Bauteilen, ein Verfahren zum Handhaben von Bauteilen und ein Verfahren zum Umsetzen von Bauteilen.

BATTERY CURRENT COLLECTOR PLATE AND BATTERY

Resumen de: EP4542740A2

The present utility model provides a battery current collector plate and a battery, the current collector plate comprising a current collector plate body and a weld zone, the current collector plate body having a first face for contacting a rolled core, and a second face opposite the first face; at least a portion of the second face is provided with the weld zone, and the weld zone has a lower laser reflectivity than the first face. In the present utility model, the weld zone of low laser reflectivity is provided on the current collector plate, such that a surface of the current collector plate absorbs laser energy more effectively, thereby increasing the efficiency and precision of welding. At the same time, the weld zone of low laser reflectivity can also reduce the temperature and the amount of heat generated during laser welding, thereby safeguarding the performance and stability of a rolled core assembly.

STACKABLE BATTERY MODULE AND BATTERY SYSTEM FOR A BATTERY-POWERED VEHICLE

Resumen de: EP4541639A1

Die Offenbarung betrifft ein stapelbares Batteriemodul für ein Batteriesystem eines batteriebetriebenen Fahrzeugs, umfassend: eine Mehrzahl von Batteriezellen; ein Batteriemodulgehäuse, welches um die Mehrzahl von Batteriezellen umlaufend angeordnet ist; wobei beim Stapeln mehrerer Batteriemodule zu einem Batteriemodulstapel die Batteriemodulgehäuse der jeweiligen Batteriemodule ineinandergreifen und den Batteriemodulstapel seitlich umschließen. Gemäß einem ersten Aspekt umfasst das Batteriemodul ein oder mehrere Zentrierelemente, die an einer oder mehreren Außenseiten des Batteriemodulgehäuses angeordnet sind. Die Zentrierelemente sind ausgebildet, das gestapelte Batteriemodul in einem Gehäuse des Batteriesystems zu befestigen und zu zentrieren. Gemäß einem weiteren Aspekt weist das Batteriemodulgehäuse ein seitlich umlaufendes Federelement und ein seitlich umlaufendes Nutelement auf, welches zu dem Federelement korrespondiert, wobei beim Stapeln des Batteriemoduls mit einem weiteren Batteriemodul zu einem Batteriemodulstapel das Federelement des Batteriemoduls in das Nutelement des weiteren Batteriemoduls eingreift und einen Kühlmittelkanal zwischen dem Batteriemodul und dem weiteren Batteriemodul ausformt.

LITHIUM-ION BATTERY ANODE WITH IMPROVED TEMPERATURE RISE PERFORMANCE AND LITHIUM-ION BATTERY

Resumen de: EP4542673A1

The present invention provides a lithium ion battery negative electrode with improved temperature rise performance, and a lithium ion battery. The negative electrode for a lithium ion battery comprises a negative electrode current collector and a negative electrode material applied to the negative electrode current collector, the negative electrode material containing a conductive agent, the conductive agent comprising SP and CNT, wherein the mass ratio of SP to CNT is 30 - 1500, preferably 35 - 100, more preferably 40 - 70, and further preferably 50 - 55. The lithium ion battery comprises a positive electrode, a negative electrode, an electrolyte and a casing, wherein the negative electrode is the negative electrode for a lithium ion battery as described above. In the present invention, the temperature rise performance of a lithium ion battery is improved by using a variety of conductive agents and adjusting types and proportions within the conductive agent, without increasing the proportion of conductive agent in the electrode material formula.

SECONDARY BATTERY

Resumen de: EP4542700A2

A first electrode tab group (250) is disposed to be deviated from a center of an electrode assembly (200) toward a first-side end portion (E1) of a first surface (120) in a long-side direction of the first surface (120). A second-side end portion (E2) of the first surface (120) is located opposite to the first-side end portion (E1) with respect to the center of the electrode assembly (200) in the long-side direction and an injection hole (124) is provided on the second-side end portion (E2) side in the first surface (120). The cover member (500) includes a first portion (510) and a pair of second portions (520). The first portion (510) faces the injection hole (124) in the first direction. The pair of second portions (520) sandwich the electrode assembly (200) in the short-side direction of the first surface (120).

NEGATIVE CURRENT COLLECTOR, PREPARATION METHOD THEREFOR, AND BATTERY AND ELECTRIC DEVICE INCLUDING SAME

Resumen de: EP4542688A1

This application discloses a negative current collector, a method for preparing same, a battery containing same, and an electrical device. The negative current collector includes a substrate and a first three-dimensional framework layer located on at least one surface of the substrate. The first three-dimensional framework layer forms a pore structure. The first three-dimensional framework layer includes first fibers. Each first fiber includes a carbon-based material.

ELECTRODE MATERIAL FOR A SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

Resumen de: EP4542689A2

Disclosed are an electrode material for a secondary battery and a method of manufacturing the electrode material, capable of reducing lithium side reactions, simplifying processes, and reducing cracks caused by external impact. The electrode material for a secondary battery includes a bonding sheet, an active material layer, and a current collector. The bonding sheet includes a plurality of through-holes penetrating first and second surfaces opposite to each other. The active material layer includes a first layer covering the first surface, a second layer covering the second surface, and a connecting layer formed inside the through-holes to connect the first layer and the second layer. The current collector is attached to the second layer.

CASING MOUNTING DEVICE

Resumen de: EP4542698A1

This application relates to the technical field of battery manufacturing, and provides an encasing device. The encasing device includes: a first bracket, where a riveting platform is disposed on the first bracket; a first flipping mechanism, configured to flip a battery shell; a first conveying sliding table, where the first conveying sliding table is disposed between the first flipping mechanism and the first bracket and configured to convey the battery shell to a grip site on the first bracket; a gripping mechanism, disposed on the first bracket, where the gripping mechanism includes a moving mechanism and a gripping piece connected to the moving mechanism, the gripping piece is configured to grip the battery shell from the grip site, and the moving mechanism is adapted to drive the gripping piece and the battery shell to move from the grip site to a position above the riveting platform; and a relocation mechanism, disposed on the first bracket, where the relocation mechanism is adapted to drive the battery shell to move toward a cell module and fit the cell module into the battery shell. The technical solution of this application can reduce space occupied by the device and improves the efficiency of assembling the battery shell and the cell module.

NON-AQUEOUS ELECTROLYTE, SECONDARY BATTERY COMPRISING SAME, AND ELECTRICAL APPARATUS

Resumen de: EP4542715A1

This application discloses a nonaqueous electrolyte solution, a secondary battery containing the nonaqueous electrolyte solution, and an electrical device. The nonaqueous electrolyte solution includes: a compound A including a saturated five-membered ring or six-membered ring and at least one fluorine-containing substituent, where the ring contains 1 or 2 oxygen atoms as ring atoms, and a ring carbon atom connected to the oxygen atom in the ring is not directly replaced by fluorine; and a compound B including a saturated five-membered ring or six-membered ring that contains 1 or 2 oxygen atoms as ring atoms, where at least one ring carbon atom connected to the oxygen atom in the ring is directly replaced by at least one fluorine atom. The nonaqueous electrolyte solution can improve cycle performance and low-temperature discharge capabilities of the secondary battery.

LITHIUM SECONDARY BATTERY

Resumen de: EP4542713A1

The present invention provides a lithium secondary battery including a negative electrode, a positive electrode positioned opposite to the negative electrode, a separator disposed between the negative electrode and the positive electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a silicon-based active material, the silicon-based active material comprises a compound represented by SiOx, wherein 0≤x<2, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a first additive and a second additive, the first additive includes a coumarin-based compound represented by a specific formula, and the second additive includes at least one of lithium fluoromalonato(difluoro)borate (LiFMDFB), lithium difluoro(oxalato)borate (LiDFOB), lithium difluorophosphate (LiDFP), or lithium difluorobis-(oxalate)phosphate (LiDFOP).

NON-AQUEOUS ELECTROLYTE FOR SECONDARY BATTERY, LITHIUM ION BATTERY, AND LITHIUM ION CAPACITOR

Resumen de: EP4542711A1

A non-aqueous electrolyte solution for a secondary battery, containing a first compound represented by the following Formula (1), a second compound represented by the following Formula (2), a non-aqueous solvent, and an electrolyte.

NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4542712A1

The present invention provides a non-aqueous electrolyte including: a lithium salt; an organic solvent; and an additive, wherein the additive includes a first additive including a compound represented by a specific formula and a second additive including lithium difluorophosphate. The non-aqueous electrolyte according to the present invention may form a stable film on the electrodes, and thus improve the storage characteristics and resistance characteristics at a high temperature of a lithium secondary battery including the non-aqueous electrolyte.

SECONDARY BATTERY AND BATTERY PACK THEREOF

Resumen de: EP4542758A1

A quadrangular secondary battery includes a shallow-drawn battery can and a lid plate welded together for sealing. A battery pack includes such secondary batteries without causing a busbar to be larger or to interfere with duct placement and without causing stress concentration on welding beads under a restraining load. A secondary battery (1) includes an electricity generator, a metal battery can (3), a nonaqueous electrolyte, a metal lid plate (5), and a pair of external terminals (6, 7). The battery can (3) is quadrangular and shallow-drawn, accommodates the electricity generator placed laterally, and includes a flange (34) on a periphery of its opening. The nonaqueous electrolyte fills the battery can (3) accommodating the electricity generator. The lid plate (5) includes an outer edge (51a) welded to the flange (34) on the battery can (3) and covers the battery can (3). The lid plate (5) includes a raised portion (52) being flat and extending beyond the outer edge (51a) in an inner area of the outer edge (51a).

CATHODE FOR SECONDARY LITHIUM BATTERY AND SECONDARY LITHIUM BATTERY COMPRISING SAME

Resumen de: EP4542705A2

The present disclosure discloses a positive electrode for a lithium secondary battery comprising a positive electrode active material layer comprising positive electrode active material secondary macroparticles and secondary microparticles having different average particle sizes to allow sufficiently high rolling pressure when manufacturing the electrode.

POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Resumen de: EP4541772A1

The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material, in which low energy density per unit volume and low stability of an overlithiated lithium manganese-based oxide are improved, and a lithium secondary battery including the same.

SECONDARY BATTERY

Resumen de: EP4542757A1

A secondary battery (10) includes a case body (11), a sealing member (12) closing the case body (11), an electrode body (2) housed in the case body (11) and constituted of positive and negative electrode bodies (21, 22) stacked with separators (23) interposed therebetween, and positive and negative collector terminals (4) each including a base portion (41) located in end portions of the sealing member (12) and connected thereto via an insulating member (3), a base adjoining portion (42) adjacent to the base portion (41), separated from or separably in contact with the insulating member (3), and a lead portion (43) with a lead upper end portion (43a) connected to the base adjoining portion (42) and a lead lower end portion (43b) bonded to the electrode body (2). The base adjoining portion (42) or the lead upper end portion (43a) includes an easily-deformable portion (44) that can be deformed without melting with respect to the base portion (41) to allow displacement of the lead lower end portion (43b) in the long-side direction of the sealing member (12).

HEAT MANAGEMENT ASSEMBLY, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4542731A1

The present application discloses a heat management assembly, a battery, and an electrical apparatus. The heat management assembly has a liquid inlet and a liquid outlet and includes a heat exchange plate and a first partition plate. The heat exchange plate is formed with a plurality of heat exchange channels that are arranged in a first direction and allow a heat exchange medium to flow, the heat exchange channels extend in a second direction, and the first direction intersects with the second direction. The first partition plate is disposed at one end of the heat exchange plate in the second direction, and the first partition plate is to block a portion of the liquid inlet, so that at least part of the heat exchange channels are connected in series with one another, thereby mitigating uneven heating of battery cells, improving the temperature consistency of the battery cells, and enhancing the heat exchange effect of the battery.

ELECTRONIC DEVICE AND METHOD FOR CHARGING BATTERIES BY ADJUSTING ELECTRICAL CONNECTION BETWEEN BATTERIES

Resumen de: EP4542816A1

An electronic device, according to an embodiment, may comprise: an interface to be connected to a charger; a charging circuit connected to the interface through a first node; a PMIC connected to the charging circuit through a second node that is different from the fist node; and a switching circuit. The switching circuit may include a first switch for connecting an anode of a first battery cell and the first node to each other on the basis of a control signal from the processor. The switching circuit may include a diode including an anode connected to a cathode of the first battery cell, and a cathode connected to an anode of a second battery cell. The switching circuit may include a second switch for connecting the anode of the first battery cell and the second node to each other in another state different from a state in which the connection has been established by the first switch.

ELECTRODE ASSEMBLY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4542718A1

The present invention relates to an electrode assembly and a lithium secondary battery including the same, wherein the electrode assembly includes a negative electrode including a negative electrode active material layer; a positive electrode including a positive electrode active material layer; a separator; and a pore closure portion, wherein the separator is disposed between the negative electrode and the positive electrode, a width of the negative electrode active material layer is greater than a width of the positive electrode active material layer, the separator includes a separator main body portion that overlaps the positive electrode active material layer in a vertical direction and a separator extension portion that does not overlap the positive electrode active material layer in the vertical direction and extends from the separator main body portion, and the pore closure portion is disposed on one surface or both surfaces of the separator extension portion and may have a porosity of 1% or less.

ANODE MATERIAL, ANODE AND ELECTROCHEMICAL DEVICE COMPRISING THE ANODE MATERIAL

Nº publicación: EP4541766A2 23/04/2025

Solicitante:

NINGDE AMPEREX TECHNOLOGY LTD [CN]
Ningde Amperex Technology Limited

Resumen de: EP4541766A2

An anode includes an anode material, the anode material meets the following relationship equations: 0.8≤0.06 × (Dv50)<2>-2.5 × Dv50+Dv99≤12 (1); and 1.2≤0.2 × Dv50-0.006 × (Dv50)<2>+BET≤5 (2), where Dv50 represents a value in the volume-based particle size distribution of the anode material that is greater than the particle size of 50% of the particles, Dv99 represents a value in the volume-based particle size distribution of the anode material that is greater than the particle size of 99% of the particles, and BET is a specific surface area of the anode material, where Dv50 and Dv99 are values expressed in µm and BET is a value expressed in m<2>/g. The anode material is capable of significantly improving the rate performance of electrochemical devices.