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BATTERY MODULE AND ELECTRIC DEVICE

Resumen de: EP4539226A1

The present application discloses a battery module, the battery module including at least three cell rows (10) parallel to each other, where any two adjacent cell rows are staggered. A busbar (22) includes the following conductive mechanisms: a first connector (221), a second connector (222), and a plurality of first conductive bars (201) and a plurality of second conductive bars (202) located therebetween and arranged side-by-side in a first direction and alternating with each other; each conductive bar comprises at least three conductive units (220) and a connector (223), and each conductive unit corresponds to one cell (111); in each conductive bar, two adjacent conductive units are connected to electrodes (120) with opposite polarities, and two spaced conductive units are connected to electrodes with same polarity. Two electrodes of each cell are connected to any two adjacent conductive mechanisms in the busbar.

SELF-SUPPORTING CERAMIC SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: EP4539237A1

The present disclosure relates to a self-standing ceramic separator for an electrochemical device and an electrochemical device including the same, and particularly, to a self-standing ceramic separator for an electrochemical device, which improves heat resistance of the separator by properly adjusting a content and arrangement of first inorganic matter particles having a sheet shape and second inorganic matter particles, that is, a zeolite-based inorganic matter, improves the safety of a battery by preventing an electrical short-circuit between electrodes, and shows a high cell lifespan characteristic, and an electrochemical device including the same.

Process for the preparation of silicon-containing composite particles

Resumen de: GB2634531A

A process for preparing composite particles comprises providing a charge of porous particles in a pressure reactor, the charge of particles having a total surface are of at least 8.0 x 104 m2 per litre of reactor volume, continuously supplying a silicon precursor gas to the reactor and agitating the particles to deposit silicon in the pores. Effluent gas is preferably withdrawn from the reactor continuously or semi-continuously. The flow rate of the silicon precursor gas may be adjusted from an initial flow rate to an adjusted flow rate, wherein the adjusted flow rate is less than the initial flow rate. An internal pressure of the reactor may be adjusted from an initial pressure to an adjusted pressure greater than the initial pressure. The particles are preferably porous carbon particles. The composite particles are suitable for use as anode active materials in rechargeable lithium-ion batteries.

CELLS CONTACT SYSTEM (CCS) ASSEMBLY, BATTERY MODULE, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4539222A2

A CCS assembly (10), a battery module (1), a battery (2) and an electrical device are provided and relate to the technical field of batteries. The CCS assembly includes a first insulation bracket (101), at least one bus bar (102), and an FPC board (103). The first insulating bracket (101) is configured to mount a plurality of cells (20) and is provided with at least a positioning post (1011). The bus bar (102) is configured to be connected to the cells (20). The bus bar (102) is arranged on the first insulating bracket (101) and is provided with a first through hole (1021). The bus bar is sleeved on the positioning post (1011) through the first through hole (1021). The FPC board (103) is connected to the bus bar (102) and is configured to transmit operating signals of the bus bar to a BMS board (30).

MOF-derived carbon aerogel, preparation method therefor, and the use thereof in lithium-ion battery

Resumen de: GB2634704A

The present invention relates to the technical field of lithium-ion batteries, and provided thereby are an MOF-derived carbon aerogel, a preparation method therefor, and a use thereof in a lithium-ion battery. According to the present invention, Cd(tppa)2Cl2 is prepared first. Cd(tppa)2Cl2 is a macroporous metal-organic framework (MOF) material, and said material is used for carbonization. The resulting MOF-derived carbon aerogel exhibits characteristics of being porous and lightweight. This allows for more lithium storage space during lithium ion intercalation and deintercalation processes, and the material can maintain stable performance after multiple cycles of circulation. The MOF-derived carbon aerogel of the present invention, when used as a negative electrode active material for a lithium-ion battery, exhibits excellent electrochemical performance. The battery not only possesses ultra-long cycling capability and extremely high rate capability, but also has a very high reversible capacity at low current densities. The carbon aerogel is a promising candidate to replace graphite and become the next generation of commercial negative electrode material for lithium-ion batteries.

BATTERY THERMAL MANAGEMENT SYSTEM AND METHOD

Resumen de: EP4538182A2

Disclosed is a battery thermal management system for an electric aircraft and a method of operating the system, the electric aircraft including a battery pack and an onboard circulation system for circulating a working fluid to cool the battery pack. The battery thermal management system includes an offboard circulation system and one or more controllers for controlling the operation of the onboard and offboard circulation systems, battery pack and the aircraft itself.

ALTERNATOR MODULATION FOR CONTROL OF EXHAUST HEATING ELEMENT

Resumen de: EP4539065A2

Systems and methods for modulating power provided to a heating element of a vehicle exhaust system is provided. One system includes a controller controlling a switch, and an alternator having a first field terminal input, wherein the first field terminal input is connected to the switch. The system further includes a heating element connected to at least an output of the alternator. The controller is configured to determine a power demand for the electric heating element and modulate the first field terminal input to cause the alternator to provide power to the heating element according to the power demand.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING SAME

Resumen de: EP4539166A2

An electrochemical device includes a cathode, a separator and an anode, wherein the cathode includes a cathode current collector; a first cathode active material layer including a first cathode active material; a second cathode active material layer including a second cathode active material, wherein the first cathode active material layer is disposed between the cathode current collector and the second cathode active material layer, and the first cathode active material layer is disposed on a first surface, facing the anode, of the cathode current collector; and an insulating layer, wherein the insulating layer is disposed on a second surface, that is not facing the anode, of the cathode current collector. According to the present application, arranging the cathode by combining the double cathode active material layers with an insulating layer in the electrochemical device, the electrochemical device will not catch on fire or fail when being pierced, so that the mechanical safety performance of the electrochemical device is ensured.

BUSBAR ASSEMBLY, BATTERY MODULE AND BATTERY PACK

Resumen de: EP4539240A2

The present invention relates to the technical field of batteries, and discloses a busbar assembly, including: a plurality of battery connecting sheets (100), each battery connecting sheet (100) is able to connect, in series, cells (300) in adjacent rows, and the plurality of battery connecting sheets (100) is able to connect, in parallel, a plurality of cells (300) in the same row, thereby adapting to connection requirements of various cell arrangement manners. A positive connecting region (110) has a similar contour as a positive electrode post (310) of each cell (300), so that the connection is more stable and convenient; and moreover, since a width of a negative connecting region (120) is greater than a width of the positive connecting region (110), the negative connecting region (120) is configured for connecting a negative electrode in a circumferential direction of the positive electrode post (310), so that the structural strength is high, greater tensile and pressure stresses are borne, and breakage is unlikely to happen. In addition, the positive connecting region (110) of the battery connecting sheet (100) is further provided with a positioning hole (101), and the location of the battery connecting sheet (100) is able to be conveniently fixed by the positioning hole (101), so that the positioning between the battery connecting sheet (100) and the cell (300) is accurate, resulting in a good connection therebetween.

SECONDARY BATTERY

Resumen de: EP4539231A2

The present invention relates to a secondary battery comprising: an electrode assembly; a pouch in which the electrode assembly is accommodated and provided with a gas discharge part; a first adhesive material which is configured to seal the gas discharge part through adhesive force, wherein, when a pressure within the pouch increases, the adhesive force of the first adhesive material is broken to open the gas discharge part; and a self-restoring adhesive member configured to reseal the opened gas discharge part through the adhesive force so as to prevent the gas from being discharged to the gas discharge part.

REAL-TIME BATTERY FAULT DETECTION AND STATE-OF-HEALTH MONITORING

Resumen de: EP4538726A2

Battery management systems and methods can provide real-time automated monitoring of various aspects of battery health and operation. Some battery management systems can use an equivalent cell circuit model to predict a range for the expected behavior of a battery cell under actual operating conditions in real-time. The prediction can be compared to the actual behavior of the cell to determine whether an anomaly exists. Some battery management systems can maintain an estimate of battery state-of-health parameters such as charge capacity and internal resistance and can update these estimates in real time while the battery is being discharged and/or charged. Anomalous variations in a monitored parameter can trigger a real-time fault notification.

BATTERY WITH A MULTILAYER INSULATION ELEMENT AND USE OF A MULTILAYER INSULATION ELEMENT FOR THERMAL INSULATION OF A BATTERY

Resumen de: EP4539212A2

Es wird eine Batterie mit einem mehrschichtigen Wärmedämmelement zur thermischen Isolierung der Batterie vorgeschlagen, mit einer ersten Deckschicht, mit einer zweiten Deckschicht und mit einer zwischen den Deckschichten angeordneten kompressiblen und/oder biegsamen Zwischenlage, die wenigstens eine hitzebeständige Faserschicht aufweist, wobei die Faserschicht aus einem vernadelten Faservlies gebildet ist.

INTUMESCENT COATINGS

Resumen de: EP4538334A2

Intumescent coating compositions comprising TiO₂ in an amount of 5-20 wt %, a phosphate source in an amount of 20-55 wt %, based on total solid weight and a borate source, aluminum source and/or silica source, are disclosed, as are methods for using such compositions and substrates coated with same.

END COVER ASSEMBLY, ENERGY-STORAGE DEVICE, AND ELECTRICITY-CONSUMPTION DEVICE

Resumen de: EP4539215A1

An end cover assembly, an energy-storage device, and an electricity-consumption device are disclosed. The end cover assembly includes a top cover, an explosion-proof valve, and a protective sheet. The top cover has a first mounting surface and a second mounting surface. The top cover defines a first mounting recess, an explosion-proof hole, and a vent recess, where the first mounting recess is recessed from the first mounting surface, and the vent recess is in communication with the explosion-proof hole. The explosion-proof valve is attached to the second mounting surface and covers an opening of the explosion-proof hole positioned on the second mounting surface. The protective sheet is attached to the bottom wall of the first mounting recess and covers an opening of the explosion-proof hole positioned on the bottom wall of the first mounting recess and the other part of the vent recess.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Resumen de: EP4539181A1

An electrochemical apparatus includes an electrolyte, a positive electrode plate, a negative electrode plate, and a separator, where the separator is disposed between the positive electrode plate and the negative electrode plate; a width W of the electrochemical apparatus and a thickness T of the electrochemical apparatus satisfy: 80 mm ≤ W ≤ 120 mm, and 2.3 ≤ W/T ≤ 4; and an adhesion force F between the separator and the positive electrode plate is 5 N/m to 15 N/m. With the adhesion force of the separator being regulated within the foregoing ranges, the separator has high adhesive performance. The application of the separator to a wide and thin electrochemical apparatus with a width and W/T value within the foregoing ranges can mitigate the deformation problem of the wide and thin electrochemical apparatus during cycling while taking the rate performance of the wide and thin electrochemical apparatus into account.

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

Resumen de: EP4539135A1

An electrode for a secondary battery and a method for manufacturing the same are disclosed, which reduces lithium side reactions, has a simple process, and can reduce cracks caused by external impact. The electrode material for a secondary battery according to an exemplary embodiment of the present invention comprises a base film with a plurality of through holes, a binder and a current collector. The binder includes active material particles dispersed therein and is fixed to the through holes. The current collector is attached to the base film.

BATTERY MODULE

Resumen de: EP4539204A1

Disclosed is a battery module in the present disclosure. The battery module includes: two cell sets provided back to back, poles of the cell sets extending out laterally; and a CCS assembly 100, electrically connected to each of the two cell sets, so as to realize electrical conduction between the two cell sets, and to realize temperature and voltage collection of each of the cell sets. The CCS assembly is arranged along a circumferential direction of the two cell sets and extends in a stacking direction of the single cells in each of the cell sets.

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

Resumen de: EP4539160A1

The present application relates to a negative electrode material, a preparation method thereof and a lithium-ion battery. By observing an SEM image, the negative electrode material includes carbonaceous particles with pores, and at least some of the pores have a slenderness ratio greater than 3, the total number of randomly observed pores is 100, and the number of pores with an aperture of 0.1µm to 0.5µm takes a proportion greater than or equal to 60% of the total number of pores, and a maximum aperture of the pores is less than or equal to 3µm. The negative electrode material of the present application has elongated pores, and most of the pores have a relatively small aperture, which indicates that in the present application, the carbonaceous particles have a relatively small pore volume inside, and less large pores are provided, so that the carbonaceous particles have excellent compactness, and the capacity, expansion and cycle performances of the negative electrode material are improved.

USE OF A SUBSTANTIALLY ANHYDROUS COMPOSITION AS COOLANT AND ANTIFREEZE AGENTS FOR FUEL CELLS, ACCUMULATORS AND BATTERIES

Resumen de: EP4538347A2

Die vorliegende Erfindung betrifft neue, im wesentlichen wasserfreie Gefrierschutzmittel für Kühlsysteme, die als solche, also ohne weitere Verdünnung mit Wasser, als Kühl- und Gefrierschutzmittel eingesetzt werden können.

CARBON NANOTUBE DISPERSED COMPOSITION, CARBON NANOTUBE RESIN COMPOSITION, MIXTURE SLURRY, ELECTRODE FILM, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4538228A1

To provide a carbon nanotube dispersion composition able to improve battery performance. Provided is a carbon nanotube dispersion composition including carbon nanotubes, a dispersant, and a solvent and satisfying (1) and (2) as follows:(1) an average outer diameter of the carbon nanotubes calculated from an SEM image obtained by observing the carbon nanotubes included in the carbon nanotube dispersion composition is 15 nm or more and 50 nm or less; and(2) when a target pixel group in the SEM image obtained by observing the carbon nanotubes included in the carbon nanotube dispersion composition is set as the carbon nanotubes, and a value obtained by dividing a distance between two points that are farthest apart, that is, an absolute maximum length, by a length of a free curve, that is, a skeleton length, is set as linearity, a proportion of carbon nanotubes with a linearity of 0.9 or more among carbon nanotubes with a skeleton length of 1 µm or more is 40% or more and 90% or less.

ULTRA-HIGH MOLECULAR WEIGHT POLYOLEFIN SEPARATOR AND PREPARATION METHOD THEREFOR

Resumen de: EP4539236A2

The present application provides an ultrahigh-molecular-weight polyolefin separator, including ultrahigh-molecular-weight polyethylene. ultrahigh-molecular-weight polyethylene has an average molecular weight of ≥ 1 million. The ultrahigh-molecular-weight polyolefin separator has a median aperture of 0.04 µm - 1 µm, the maximum aperture of no more than 1.2 µm, and a puncture strength of ≥50 gf. Further, the present application further provides a method for preparing an ultrahigh-molecular-weight polyolefin separator. Because the polyolefin separator is safer than an ordinary non-woven separator, and has higher ionic conductivity and larger median aperture, the problems that an ordinary non-woven separator of a lithium-ion battery, although having a high lithium-ion passage rate, has a high degree of danger, and is prone to cause a short circuit of the battery are exactly solved.

SECONDARY BATTERY INFORMATION OUTPUT DEVICE

Resumen de: EP4538727A1

Provided is a secondary battery information output device capable of easily estimating characteristics of a secondary battery. The secondary battery information output device includes a data acquisition element configured to acquire charging and discharging data, a storage element configured to store first correspondence relationship data and second correspondence relationship data, an information processing element configured to estimate a type of a secondary battery of a processing target, and an output element configured to output an estimation result of the information processing element. The information processing element executes first estimation processing of estimating the type of the secondary battery of the processing target, and executes second estimation processing of further estimating the type of the secondary battery of the processing target when the type of the secondary battery of the processing target is not able to be uniquely estimated in the first estimation processing.

CYLINDRICAL BATTERY, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4539197A1

Disclosed is a cylindrical battery configured to reduce the deformation of an electrode assembly and the intensity of flame when a thermal event occurs inside a battery cell. A cylindrical battery according to an aspect of the disclosure includes: an electrode assembly including a first electrode, a second electrode, and a separator interposed therebetween and having a center hole formed by winding a laminate including the first electrode, the second electrode, and the separator around a winding axis; a battery housing configured to accommodate the electrode assembly through an opening formed on one side thereof; and a resist member at least partially received inside the center hole.

ELECTROCHEMICAL STACK AND METHOD OF ASSEMBLY THEREOF

Resumen de: EP4539209A2

An electrochemical stack assembly includes a laminated pouch surrounding a frame which encloses solid-state electrochemical cells and electrochemical stacks. In some embodiments, an electrochemical stack assembly includes one or more electrochemical cells, each electrochemical cell comprising a solid-state electrolyte to form at least one electrochemical stack with two major surfaces and four minor surfaces; a frame surrounding the at least one electrochemical stack with space between the frame and each of the four minor surfaces; and a laminated pouch surrounding the frame and the at least one electrochemical stack, the laminated pouch in contact with one or both of the major surfaces. In some embodiments, the frame comprises a tray. In some embodiments, the electrochemical stack assembly comprises two trays, each with an electrochemical stack comprising an electrochemical cell, the cell comprising a solid-state electrolyte.

BATTERY MODULE

Nº publicación: EP4539211A1 16/04/2025

Solicitante:

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

Resumen de: EP4539211A1

A battery module according to one example of the present invention comprises a battery cell, a case part having an accommodating space, in which the battery cell is accommodated, and a first wall portion and a second wall portion each surrounding the accommodating space, and a cooling water inlet part having an inlet storage portion, in which cooling water flowing into the first wall portion is accommodated, and provided so that the cooling water in the inlet storage portion flows into the accommodating space through a plurality of branch points.