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ENERGY STORAGE ELEMENT AND BATTERY

Resumen de: CN120958625A

A secondary energy storage element (100) includes, as electrodes, a cathode (108) and an anode (105), which are parts of an assembly (104), which are separated by a separator or a solid electrolyte layer (116), and which are arranged in the assembly in the order of cathode (108)/separator or solid electrolyte layer (116)/anode (105). The cathode (108) comprises a cathode current collector (109) and a positive electrode material (110), and the anode (105) comprises an anode current collector (106) and a negative electrode material (107). The cathode current collector (109) has a main region loaded with a layer of positive electrode material (110) on both sides and a free edge strip (109b) extending along an edge of the cathode current collector (109) and not loaded with the positive electrode material (110). Alternatively or simultaneously, the anode current collector (106) has a main region loaded with a layer of negative electrode material (107) on both sides and a free edge strip (106b) extending along an edge of the anode current collector (106) and not loaded with the negative electrode material (107). The cathode (108) and the anode (105) are formed and/or arranged in the fitting (104) in such a way that a free edge strip (109b) of the cathode current collector (109) protrudes from one side (104b) of the fitting (104) and/or a free edge strip (106b) of the anode current collector (106) protrudes from the other side (104a) of the fitting (104). The energy storage element

IRON PHOSPHATE-COMPRISING MATERIALS

Resumen de: WO2025051918A1

The present application discloses a method for preparing an iron- phosphate comprising material comprising reacting the iron source lepidocrocite (y-FeOOH) with a phosphorus source, resulting in the formation of an iron phosphate-comprising material.

PARAMETERIZING A HALF-CELL EQUIVALENT CIRCUIT MODEL OF A LITHIUM-ION BATTERY CELL BASED ON FULL-CELL MEASUREMENTS

Resumen de: EP4711786A1

The present disclosure relates to techniques for determining multiple parameterized values of an equivalent circuit model (ECM) that represents a Lithium-ion battery cell, enabling accurate simulation of various electrochemical processes occurring within the cell. A half-cell ECM is considered. The ECM can parameterized optimized by considering one or more constraints related to the electric potential of the negative electrode, breaking symmetry between parameter values associated with positive and negative electrodes. This results in improved accuracy of the ECM for simulating Lithium plating onset thresholds at different SOC values, enabling determination of optimized charging profiles or load constraints that avoid increased aging of the battery.

METHOD FOR APPLYING A PROTECTIVE LAYER TO A METAL OR METAL ALLOY SURFACE, AND ARTICLE COMPRISING SUCH PROTECTIVE LAYER

Resumen de: EP4711491A1

The present invention relates to a method for applying a protective layer to a surface of a substrate, the surface comprising a metallic element or an alloy thereof, in particular wherein the metallic element is an alkali metal or an alkaline earth metal. The present invention is further related to an article comprising such a substrate and a protective layer arranged on or covering at least part of the substrate. The invention is further related to an electrode comprising the article, in particular an anode, and to a battery (cell) comprising the electrode.

ENERGY STORAGE CELL AND MANUFACTURING METHOD THEREFOR

Resumen de: EP4712256A1

The present invention provides a rechargeable energy storage cell (1), in which a degassing port (12) is forming part of the anode (2) when the cell (1) is in use. Further, a corresponding manufacturing method is provided.

BATTERY AND METHOD FOR MANUFACTURING THE BATTERY

Resumen de: EP4712219A1

A battery, comprising: battery components including an electrode assembly; an inflatable pouch case enclosing the battery components inside, the inflatable pouch case having an inner surface facing the battery components and an outer surface opposite to the inner surface; and electrode leads electrically connected to the electrode assembly and extending through the inflatable pouch case from the inside of the inflatable pouch case to an outside of the inflatable pouch case; the battery being characterized in that the outer surface of the inflatable pouch case is sealingly bonded to a surface of each of the electrode leads.

FOLDED MEMBRANE CARRIER FOR BATTERY CASE VENTING

Resumen de: EP4712242A1

A venting unit (34) for a battery case, the venting unit (34) comprising a housing part (36) delimiting a vent opening (38), and a membrane assembly (10; 10') spanning across the vent opening (38) and comprising a membrane carrier (12; 12') comprising carrier segments (14) and flow windows (16) respectively disposed through the carrier segments (14), and membrane segments (18) respectively covering the flow windows (16). Each adjacent pair of the carrier segments (14) is folded against one another along a film hinge (20) disposed therebetween.

ELECTROCHEMICAL ENERGY STORAGE ELEMENT

Resumen de: EP4712178A1

Ein elektrochemisches Energiespeicherelement (12) weist einen hohlzylindrisch geformten Wickelverbundkörper (10) auf, der eine spiralförmige Struktur aus mindestens zwei spiralförmig um eine Wickelachse gewickelten Elektrodenbändern (14, 24) und mindestens einem zwischen den Elektrodenbändern (14, 24) angeordneten Separatorband (38, 40) aufweist. Der hohlzylindrisch geformte Wickelverbundkörper (10) umfasst zwei endständige Stirnseiten (34, 36), eine umlaufende äußere Verbundkörpermantelfläche (42), und einen axial ausgerichteten Hohlraum (46) im Zentrum des Verbundkörpers (10), in dem ein elektrisch leitender Wickelkern (50) angeordnet ist. Der Wickelverbundkörper (10) ist in einem zylindrischen Gehäuse (60) mit einem Boden (61) und einem Deckel (62) angeordnet, derart, dass die Stirnseiten (34, 36) in Richtung des Bodens (61) und des Deckels (62) weisen. Das Energiespeicherelement (12) umfasst weiter elektrisch leitende Kontaktelemente (70, 80), die flach auf den Stirnseiten (34, 36) aufliegen.Es wird vorgeschlagen, dass der Wickelkern (50) derart ausgebildet und/oder angeordnet ist, dass er bei axialer Deformation des Gehäuses (60) das erste elektrisch leitendes Kontaktelement (70) und das zweite elektrisch leitende Kontaktelement (80) elektrisch verbindet.

METHOD AND SYSTEM FOR DETERMINING A CHARGING CURRENT LIMIT FOR A CHARGING PROCESS OF A RECHARGEABLE BATTERY

Resumen de: WO2025010459A1

The invention relates to a method (100), a computer program product, a control system (10) and a battery charging system (90) for determining a charging current limit for a charging process of a rechargeable battery device (1000). In this case, measurement parameters (MP) are recorded at the battery device (1000). Furthermore, battery parameters (BP) are determined by means of a process physics-based battery model on the basis of the recorded measurement parameters (MP). Furthermore, prediction parameters (VP) for the onset of metal plating at an electrode (1001, 1002) of the battery device (1000) are determined with the aid of a prediction model, in particular a data-driven prediction model, wherein at least one forecast onset time of metal plating is determined as prediction parameter(s) (VP) on the basis of at least the battery parameters (BP) as input parameters of the prediction model. Control parameters (KP) for controlling the charging process are determined with the aid of a control model, which is likewise in particular a data-driven control model, wherein on the basis of the measurement parameters (MP), the battery parameters (BP) and the prediction parameters (VP), the charging current limit is determined as the at least one control parameter (KP) and the determined charging current limit for specifying the charging current is output to a battery charging system (90).

POWER TOOL AND BATTERY PACK

Resumen de: EP4712237A1

Provided are a power tool and a battery pack. The battery pack includes: a housing; a power tool interface configured to be connected to the power tool, where the power tool interface includes a terminal assembly; and a cell module accommodated in the housing and electrically connected to the terminal assembly, where the cell module includes at least multiple cell units. The continuous discharge power of the cell unit is greater than or equal to 300 W.

ELECTRODE, METHOD FOR PREPARING SAME, AND SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4712154A1

Disclosed are an electrode with improved sliding portions, a method for manufacturing the same and a secondary battery including the same, the electrode including a current collector; and an active material layer located on at least one surface of the current collector, wherein the current collector has at least one first surface portion in contact with the active material layer, and a second surface portion located at two sides of the first surface portion, wherein the active material layer is not located at the second surface portion, and wherein a contact angle of water droplet on the first surface portion is smaller than a contact angle of water droplet on the second surface portion,.

ELECTRIC BATTERY PACK WITH IMPROVED SYSTEM FOR DISTRIBUTING A TEMPERATURE-REGULATING LIQUID

Resumen de: EP4711187A1

An electric battery pack (1) comprises a plurality of electric battery groups. Each group comprises a plurality of battery cells (4), arranged side by side along a first horizontal direction (X). The different groups of battery cells (4) are arranged in at least one row along a second horizontal direction (Y) orthogonal to the first horizontal direction (X). The battery pack (1) is configured to receive a flow of a temperature-regulating liquid that passes through the battery pack (1) so as to come into direct contact with the battery cells (4). A system for distributing the temperature-regulating liquid includes a longitudinal feeding channel (6) and a plurality of transverse channels (7) extending beneath each group of battery cells (4) along said first horizontal direction (X). The transverse channels (7) are defined by a lower support structure (5) on which the battery cells (4) are supported and including a lower wall (50), an upper wall (51) parallel to and spaced above the lower wall (50) and formed integrally, or rigidly connected, with said lower wall (50), and a plurality of internal ribs (5B) parallel to and spaced apart from each other extending along the first horizontal direction (X) between the lower wall (50) and the upper wall (51). Each transverse channel (7) has a closed cross-section, defined by the lower wall (50), the upper wall (51), and two of the internal ribs (5B) of the lower support structure (5). In the upper wall (51) of the lower support structu

BATTERY MODULE

Resumen de: EP4712231A2

A battery module includes a housing (100), a plurality of battery cells (200), each of which includes an electrode assembly (210), a case (220) accommodating the electrode assembly (210), a cap plate (230) sealing the case (220), a pair of terminals (240) protruding from the cap plate (230), and a vent (250) between the terminals (240). The plurality of battery cells (200) is arranged in the housing (100) in a first direction. The battery module further comprises a holder (300) in the housing (100) and facing the cap plate (230), and an inner sheet (400) between the cap plate (230) and the holder (300) to cover the vent (250).

Lithium-ion (Li-ion) battery health degradation detection in fastcharging systems

Resumen de: GB2700847A

A system detects degradation of battery health due to fast-charging and controls charging of the battery and/or provides indications of battery health while fast-charging. The system includes remove a battery charging circuit that controls a charging voltage waveform to supply charging current to a battery and a detection circuit that monitors a rate of change of the charging current and controls the charging voltage waveform responsive to an output of the detection circuit. figure 5

BATTERY MODULE WHEREIN THERMAL PROPAGATION IS PREVENTED

Resumen de: EP4712215A1

The present invention provides a structure of a battery module including: a cell laminate including: a plurality of battery cells laminated in widthwise direction; and at least one barrier member interposed between and laminated together with the plurality of battery cells in widthwise direction; and a housing accommodating the cell laminate, wherein each of the at least one barrier member includes a metal layer and insulating layers provided at two widthwise ends of the metal layer, respectively, and a thickness of each of the insulating layers is greater than that of the metal layer.

BATTERY PACK

Resumen de: EP4712238A1

Example embodiments provide a battery pack. The battery pack includes: a lower frame including a base plate and side walls; first to fourth battery cell assemblies provided on the lower frame and including a plurality of battery cells; a first cross beam interposed between the first and second battery cell assemblies, in which the first and second battery cells are spaced apart from each other in a first direction; a second cross beam interposed between the third and fourth battery cell assemblies, in which the third and fourth battery cell assemblies are spaced apart from the first and second battery cell assemblies in a second direction perpendicular to the first direction; first fixing parts coupled to the first cross beam and spaced apart from the base plate; and second fixing parts coupled to the first fixing parts.

SECONDARY BATTERY

Resumen de: EP4712181A1

A secondary battery, including an electrode assembly including a first electrode, a second electrode, and a separator therebetween, a case including a bottom portion, a side wall portion connected to the bottom portion, and an opening portion facing the bottom portion, the case accommodating the electrode assembly, and a cap assembly coupled to one end of the side wall portion of the case to seal the opening portion, wherein the case includes a groove region formed on an inner peripheral surface of the side wall portion.

METHOD FOR MITIGATING EFFECTS OF GASSES RELEASED FROM BATTERY COMPONENTS

Resumen de: CN121241465A

The present disclosure provides a system for mitigating and limiting the effects of fluid released from a battery component. The system includes a base having a plurality of outlets, the base coupled with a battery module housing configured to receive a battery module, with the plurality of outlets arranged in a configuration across the base. The system also includes one or more nozzles configured to receive an inhibitor and provide the inhibitor to the base, where in response to an out-of-control event at the battery module, the base is configured to interact with an exhaust fluid from the battery module to cool the exhaust fluid.

ELECTRODE ASSEMBLY AND METHOD OF MANUFACTURING SECONDARY BATTERY INCLUDING THE ELECTRODE ASSEMBLY

Resumen de: EP4712252A1

An electrode assembly according to the present disclosure includes a positive electrode plate, a negative electrode plate, a separator positioned between the positive electrode plate and the negative electrode plate, and an electrode tab electrically connected to the positive electrode plate. The electrode tab includes a first metal and a second metal that at least partially surrounds the first metal.

BATTERY ASSEMBLY AND DEVICE INCLUDING SAME

Resumen de: EP4712214A1

A battery assembly according to certain embodiments of the present disclosure includes: a battery cell stack in which a plurality of battery cells are stacked; a frame that houses the battery cell stack and includes a first side surface part, a second side surface part, a ceiling part, and a bottom part; and an inlet and an outlet for circulating a coolant inside the frame. The coolant is flowed into the inside of the frame through the inlet, and discharged through the outlet. Pad members are disposed on at least at one place between the battery cells, and at least one of the pad members extends from the ceiling part to the bottom part of the frame.

SECONDARY BATTERY AND CELL STACK COMPRISING SAME

Resumen de: EP4712225A1

The present disclosure is directed to providing a secondary battery with fewer limitations on shape and improved battery capacity, and for preventing problems caused by gas produced during charging and discharging. The secondary battery according to an embodiment of the present disclosure includes an electrode assembly including a plurality of electrodes and a separator stacked parallel to each other, a sheet-type outer packaging having an internal space for accommodating the electrode assembly, and an outer packaging opening configured to communicate the internal space with an outside, and a cap configured to cover the outer packaging opening of the sheet-type outer packaging, wherein a height of the cap in a stack direction of the electrodes and the separator is larger than a height of the electrode assembly.

BATTERY PACK AND DEVICE INCLUDING SAME

Resumen de: EP4712246A1

A battery pack according to certain embodiments of the present disclosure comprises: at least one battery assembly including a plurality of battery cells; and a pack housing that houses the at least one battery assembly, wherein a plurality of venting channels extending along one direction are formed inside a bottom frame of the pack housing, wherein a venting hole communicating with the venting channel is formed on a lower surface of the battery assembly, and wherein the venting channels each have independent venting flow paths that are not shared with each other.

Automated method of dispensing

Resumen de: GB2644090A

There is an automated method (100 figure 1, 200 figure 6) of dispensing a compressible thixotropic thermal barrier material on to a vehicle part, the method comprising: conveying a first material to a mixing chamber (112 figure 4). Also conveying a second material to the mixing chamber so as to combine the first material and the second material to form the compressible thixotropic thermal barrier material in the mixing chamber. Subsequently activating a dispenser (114 figure 2) to dispense the thermal barrier material on to the vehicle part. The vehicle part may be a battery subassembly.

An insulating jacket for an automotive battery

Resumen de: GB2643990A

An insulating jacket 2 for an automotive battery comprises a first part 6 for housing the automotive battery, wherein the first part comprises at least one magnet 40 for magnetically engaging magnetic material 42 to secure the jacket 2 adjacent the automotive battery. There may be projections 68 for fitting with slots (66, figure 3) of a second part 36 of the housing. There may be apertures 30 for a lead and flaps 32 to access the vehicle battery terminals. An assembly comprises a tray for supporting the car battery and an insulating jacket for covering the battery when supported by the tray; and wherein the second part is attached to the tray and the first part is removable from the tray when the magnets are disengaged.

CAP ASSEMBLY, SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Nº publicación: EP4712224A1 18/03/2026

Solicitante:

SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD

Resumen de: EP4712224A1

A cap assembly includes a terminal part to be electrically connected to an electrode plate of an electrode assembly, a laser-transmissive glass part arranged above an area at where a current collection member that electrically connects an electrode plate of the electrode assembly and the terminal part and the electrode assembly are combined, and a cap plate having a terminal opening with which the terminal part is combined and a glass opening with which the glass part is combined that is combined with a case that accommodates the electrode assembly.