Almacenamiento en baterías

Preventing propagation of cell failures in battery packs

Resumen de: GB2627254A

Battery packs 100, which may be used in vehicles 10, 20, are provided. One such battery pack 100 comprises: a plurality of battery cells 101; one or more flow control devices 140; and sensing and control circuitry 150 configured to: measure one or more parameters indicative of an onset of thermal runaway of one or more of the plurality of cells 101and determine, based on a change in one or more of the measured parameters, that one or more of the plurality of battery cells 101 has begun or is at risk of beginning thermal runaway;. One or more of the flow control devices 140 is activated in response to the determination. Each flow control device 140 is configured to, when activated, direct a flow of fluid such as a flame retardant, 145 past one or more of the plurality of cells 101 to cool the cells101 and/or carry media 130 vented by one or more of the cells 101 following a thermal runaway event away from the one or more cells 101. Each cell 101 extends in a z-direction and are arranged in an array 1000 in an x-y plane perpendicular to the z-direction. A plurality of barriers 102 for preventing propagation of thermal runaway between cells 101 of the array 1000, each one of the plurality of barriers 102 forming a barrier wall 1020 that surrounds a group of one or more of the cells 101. A gap is defined between the barrier wall 1020 of each respective barrier 102 and the outer cell wall 1010 of each of the respective one or more cells 101 enclosed by the respective barrier.

Battery mounting system

Resumen de: GB2627203A

A battery mounting system includes a battery case 34 and a mounting bracket 36. The mounting bracket has a first part (66, Figure 4) for connection to an elongate support (64, Figure 4) and a second part (72, Figure 4) joined to the first part via a pivot point, for example including a single bolt (74, Figure 4). The battery case includes a sleeve 46 for receiving the second part of the mounting bracket. The sleeve has an open end and a closed end opposite the open end. The second part of the mounting bracket includes a ferromagnetic material and may for example include an elongate flat plate of ferromagnetic material. A magnet 52, such as a neodymium magnet, is provided adjacent the closed end of the sleeve. The first part of the mounting bracket may be formed from a flat/sheet material bent to provide an open channel section (68, Figure 4) which is shaped to receive and partly surround an elongate support.

METHOD FOR DETECTING THE THERMAL RUNAWAY OF INDIVIDUAL BATTERY CELLS

Resumen de: WO2023174763A2

The invention relates to a method for detecting the thermal runaway of individual battery cells of a battery module, for which purpose at least one pressure value (P) is recorded in the battery module. The method according to the invention is characterized in that, for reducing the dynamics, the recorded pressure value (P) is filtered by at least one filter (1, 2, 3, 6, 7), after which at least one differential value (ΔP2, ΔP3) is formed from at least one first value (P1, P2) and at least one second value (P2, P3), wherein the first value (P1, P2) is a value that has been filtered to a greater extent with respect to reducing the dynamics than the second value (P2, P3) and the second value (P2, P3) is a filtered or unfiltered value with respect to its effect in reducing the dynamics, after which the first differential value (ΔP2, ΔP3) is compared with a preselected positive or negative limit value (pthpos, pthneg), wherein a warning message is generated in the event that it is above the positive limit value (pthpos) or below the negative limit value (pthneg).

Battery charging station

Resumen de: GB2627181A

A mobile battery charging and storage station 10 for both indoor and outdoor use, comprises a weatherproof, secure cabinet (13) mounted on wheels 16 and having a width of less than 800mm. Within the cabinet are plural internal storage units 50, each having an internal mains power supply socket (58) and a unit air vent (62). Each storage unit is sized to receive a battery pack to be charged from the power supply socket. The cabinet has an externally mounted, weatherproof, mains hook-up socket that supplies each power supply socket. The cabinet houses an automatic climate monitoring and adjusting system (60) for supplying air to the storage units, via their respective unit air vents, to optimise the climate of the storage units for battery charging. Each internal storage unit may have a moveable, lockable closure (52) with a vent (56) to allow air throughflow via the unit air vent, internal storage unit and closure vent. In use, a battery is placed inside a charging station and coupled to an electrical connection to charge the battery. A parameter (e.g. temperature, humidity) of the climate of the charging station, in the region of the battery, is detected, and is controlled during charging.

ELECTRICAL HEAT EXCHANGER

Resumen de: EP4417447A1

The present invention relates to an an electrical heat exchanger (1) for the circulation of a coolant fluid, comprising at least one casing (2, 2A, 2B) and at least one electrical heating element (22, 22A, 22B), said casing (2, 2A, 2B) comprising a first portion (12) and a second portion (14) joined along an interface plane to define an enclosure (18) for receiving said electrical heating element (22, 22A, 22B), the casing (2, 2A, 2B) comprising a first longitudinal side (4) and a second longitudinal side (6), and a first lateral side (8) and a second lateral side (10) both extending between the longitudinal sides (4, 6), the casing (2, 2A, 2B) having at least one port (24, 24A, 24B) projecting out of the first lateral side (8) and extending longitudinally to constitute an extension of one longitudinal side (4, 6).

BATTERY MODULE HAVING STORAGE FOR VENTING PARTICLES

Resumen de: EP4418419A1

Disclosed is a battery module comprising a battery cell stack with a plurality of stacked battery cells each having a venting outlet; a venting space extending along the battery cell stack, each of the venting outlets opening into the venting space; a degassing space extending besides the venting space; a plurality of separators arranged within the venting space and sub-dividing the venting space into a plurality of venting channels being gas-tightly separated from each other by the separators. Each of the venting channels has a venting channel opening, which opens into the degassing space. The degassing space is at least partly confined by a wall comprising a collection area. The collection area being arranged opposite to each of the venting channel openings and spaced apart from each of the venting channel openings. The disclosure further refers to a battery system and a vehicle using the battery module described above.

HEAT EXCHANGE TUBE

Resumen de: EP4417922A1

A first aspect of the invention is a heat exchange tube configured to carry out the cooling of an electrical or electronic element by making use of a "U" flow, that is, with an outflow and a return flow such that the supply and outlet of the fluid are located at one end of the tube. The tube is additionally configured to establish a suitable coupling to a manifold so that the junction ensures that there is no bypass flow between the flow channel(s) and the return flow channel(s). A second aspect of the invention is a manifold configured for coupling with the tube of the first aspect of the invention. A third aspect of the invention is a heat exchange module which at least combines a tube according to the first aspect of the invention and a collector according to the second aspect of the invention.

COLLECTOR FOR HEAT EXCHANGE TUBE

Resumen de: EP4417927A1

A first aspect of the invention is a manifold for heat exchange tube, the tube configured to carry out the cooling of an electrical or electronic element by making use of a "U" flow, that is, with a flow out and a flow back such that the fluid supply and the fluid outlet are located at one end of the tube. The manifold is configured to allow fluidic connection between the flow and return flow in the U-flow located at the end of the heat exchange tube. The manifold allows for a change of flow direction with improved pressure drop. The tube is additionally configured to establish a proper coupling to the manifold.

MODULAR CONNECTOR

Resumen de: EP4418437A1

Ein Modulverbinder (100) zum elektrischen und mechanischen Verbinden von Batteriemodulen, aufweisend: ein Verbindungselement (110); eine erste Verbindungsvorrichtung (120); und eine zweite Verbindungsvorrichtung (130). Das Verbindungselement (110) weist eine erste Schnittstelle (111) und eine zweite Schnittstelle (112) auf, wobei die erste Schnittstelle (111) mittels der ersten Verbindungsvorrichtung (120) mit einem ersten Batteriemodul mechanisch und elektrisch verbindbar ist und wobei die zweite Schnittstelle (112) mittels der zweiten Verbindungsvorrichtung (130) mit einem zweiten Batteriemodul mechanisch und elektrisch verbindbar ist. Zumindest eine von der ersten Verbindungsvorrichtung (120) und der zweiten Verbindungsvorrichtung (130) bildet mit dem Verbindungselement (110) ein Gelenk aus zum Bereitstellen eines geometrischen Toleranzausgleichs bei der Montage.

ADHESIVELY BONDED ASSEMBLY FOR BATTERY HOLDER, AND BATTERY HOLDER FOR TRANSPORT VEHICLE

Resumen de: EP4418418A1

The invention concerns an assembly (1) for battery holder comprising a first structural element (10), a second structural element (20), an interior junction organ (30), an exterior junction organ (40), and adhesive agents (50); the interior junction organ (30) and the exterior junction organ (40) securing the first structural element (10) with the second structural element (20) via the adhesive agents (50) at the level of a first end portion (11) of the first structural element (10) and at the level of a second end portion (21) of the second structural element (20).

BATTERY CELL FRAME AND METHOD FOR MANUFACTURING A BATTERY CELL FRAME

Resumen de: EP4418407A1

A battery cell frame (114) is disclosed, wherein at least one battery cell (112) is supportable by the battery cell frame (114) in at least three directions of a Cartesian coordinate system. The battery cell frame (114) comprises at least two cooling components (122) configured for compensating a temperature of the at least one battery cell (112) and at least one plastic frame element (126) generated by at least partially overmolding at least one of the cooling components (122), wherein a first cooling component (128) comprises at least one planar collecting portion (132) and at least one heat discharge portion (134), wherein the first cooling component (128) and a second cooling component (130) both are arranged at least partially on the outside of the frame element (126).Further, a method for manufacturing a battery cell frame (114) and a battery module (110) are disclosed.

ADHESIVELY BONDED AND FASTENED ASSEMBLY FOR BATTERY HOLDER, AND BATTERY HOLDER FOR TRANSPORT VEHICLE

Resumen de: EP4418422A1

The invention concerns an assembly (1) for battery holder comprising a first structural element (10) ; a second profile (30) presenting a hollow section delimiting internally an adhesion surface (s30), and a mating cavity (31); a junction organ (50) inserted inside the mating cavity (31) and comprising at least one fixing hole (51), the junction organ (50) comprising externally a junction surface (s50) facing the adhesion surface (s30); an adhesive agent (20) interposed between the junction surface (s50) and the adhesion surface (s30), the adhesive agent (20) being configured to allow an adhesion between the junction surface (s50) and said adhesion surface (s30) ; and a fixing member (40) comprising a fixing rod (41) screwed into the fixing hole (51); the fixing member (40) and the junction organ (50) being thereby configured to secure the first structural element (10) with the second profile (30).

METHOD FOR MANUFACTURING A CELL CONTACT SYSTEM

Resumen de: EP4418438A1

A method of manufacturing a cell contact system (114) comprising a sensor circuitry (118) is disclosed. The method comprises the following steps:a) providing a base plate (122) having at least one busbar (124) and at least one controller interface (128) arranged thereon;b) providing at least one sensor (126);c) positioning the at least one sensor (126) in at least one predefined sensor position on the base plate (122);d) positioning, by a robot comprising at least one movable welding head, at least one first electrically isolated wire (130) on the base plate (122) and welding one end of the at least one first electrically isolated wire (130) to an interface of the sensor (126) and another end of the at least one first electrically isolated wire (130) to the controller interface (128), thereby interconnecting the at least one sensor (126) and the controller interface (128);e) repeating step d) with at least one second electrically isolated wire (130), thereby generating the sensor circuitry (118); andf) mechanically fixating the at least two electrically isolated wires (130) relative to each other by one or more of at least one hardenable material (132) and at least one retaining element.Further, a cell contact system (114), a battery pack (112) and a battery system (110) are disclosed.

SYSTEM FOR CHARGING, COOLING AND HEATING ACCUMULATORS

Resumen de: EP4418488A1

System mit wenigstens einer ersten Aufnahmevorrichtung (2a) zum Aufnehmen wenigstens eines ersten Akkumulators (4a), wobei der wenigstens erste Akkumulator einen Temperatursensor (7) zum Erfassen mindestens eines Temperaturwertes des Akkumulators enthält, wobei die wenigstens erste Aufnahmevorrichtung eine Ladeeinrichtung (13) zum Laden des Akkumulators mit elektrischer Energie, eine Kühlungseinrichtung (14) zum Kühlen des Akkumulators sowie eine Wärmeeinrichtung (15) zum Erwärmen des Akkumulators enthält.

PRESSURE OR STRAIN ESTIMATION FOR RECHARGEABLE BATTERIES

Resumen de: EP4418404A1

Various examples relate to characterizing ageing of a rechargeable battery. Multiple state of health associated with capacity, impedance, and/or pressure or strain can be determined, taking into consideration stress factors of the battery. A model is built that enables to determine the state of health of the battery associated with pressure or strain.

STATE OF HEALTH AND INITIAL PRESSURE OF BATTERY CELL

Resumen de: EP4418405A1

Various examples of the disclosure generally pertain to predicting the state of health of the battery cell depending on an initial pressure of the battery cell. Various examples relate to building a respective forecast model that enables to make such prediction. The forecast model can be empirically determined.

RECOVERY OF PHOSPHORUS AND IRON COMPOUNDS FROM LFP/LFMP-CONTAINING MATERIALS

Resumen de: EP4417580A1

Die Erfindung betrifft ein Verfahren zur Gewinnung von Phosphor- und Eisenverbindungen aus LFP- und/oder LFMP-haltigen Materialien, dadurch gekennzeichnet, dass mani) ein LFP- und/oder LFMP-haltiges Material in Gegenwart einer Kohlenstoff-Quelle mit Chlorgas bei einer Temperatur von 300 bis 900°C umsetzt undii) die gebildeten Chlorphosphorverbindungen, insbesondere Phosphoroxychlorid und ggf. Phosphortrichlorid und Eisenchlorid im Abgasstrom abgeleitet werden, und aus dem Abgasstromiii) das Eisenchlorid undiv) die Chlorphosphorverbindungen bei unterschiedlichen Temperaturen getrennt werden.

SECONDARY BATTERY AND ELECTRIC APPARATUS CONTAINING SAME

Resumen de: EP4418345A1

Embodiments of this application provide a secondary battery and an electric apparatus containing the same. This application provides a secondary battery, including a negative electrode plate, where the negative electrode plate includes: a negative electrode current collector; a first negative electrode film layer disposed on at least one surface of the negative electrode current collector, where the first negative electrode film layer includes a first negative electrode active material and a first conductive polymer, a mass percentage of the first conductive polymer in the first negative electrode film layer is recorded as A, and A≤6%; and a second negative electrode film layer disposed on a surface of the first negative electrode film layer, where the second negative electrode film layer includes a second negative electrode active material and a second conductive polymer, and a mass percentage of the second conductive polymer in the second negative electrode film layer is recorded as B; where the negative electrode plate satisfies A>B. The secondary battery has both good maximum charging rate and long cycle life.

HARNESS ASSEMBLY

Resumen de: WO2023062235A1

Disclosed is a harness assembly (200) for a battery module (110) of an electric vehicle (1000), the battery module comprising first and second opposite end faces (102, 104) with a side (106) located therebetween. The harness assembly comprises an electrically conductive track (202) configured to be located along the side of the battery module; a temperature sensor (210a-d) electrically connected to the track; and a harness clip (204, 206) configured to fasten the track to the battery module and hold the temperature sensor in contact with an electrical cell (120) of the battery module. Also disclosed is a harness (220) comprising a primary track (202) comprising a printed electrical conductor and configured to be located along the side of the battery module; and a branch track (602) comprising a printed electrical conductor, electrically connected to the electrical conductor of the primary track (202) and configured to be folded to locate it at least partially at a second side, different to the first side, of the battery module.

BATTERY CELL PACK FOR ELECTRIC VEHICLE

Resumen de: CN118104043A

The present disclosure relates to a battery cell group comprising: a battery cell having a first terminal and a second terminal on a bottom side of the battery cell and an air vent; a frame on a bottom side of the battery cell, the frame including a frame plate having first and second openings aligned with the first and second terminals and a third opening aligned with the vent, and first and second intermediate frame walls extending perpendicular to the frame plate; and a thermal protection plate extending between the intermediate frame walls, wherein the intermediate frame walls and the thermal protection plate form a channel between the terminals along a length of a bottom side of the battery cell. The disclosure also relates to a battery pack including a plurality of battery cell groups and an electric vehicle including the battery pack.

POWDER OF SOLID MATERIAL PARTICLES OF FORMULA LIAPSBXC (I)

Resumen de: CA3233853A1

The present disclosure relates to a powder of solid material particles of formula (I): LiaPSbXc wherein - X represents at least one halogen element; - a represents a number from 2.0 to 7.0; - b represents a number from 3.0 to 6.0; and - c represents a number from 0 to 3.0, wherein the powder has a d50-value of less than 50 µm, characterised in that its L* value in the L*a*b* color system is less than 60Ø The present disclosure also relates to a process for preparing such powder, as well as to the use of such powder for notably manufacturing solid electrolytes or battery articles.

DRY-PROCESSED INSULATING FILM FOR ELECTRODE EDGES

Resumen de: CA3233860A1

The present application relates to an insulating film obtained by dry processing, to a method for obtaining same and to the use thereof to coat electrode edges, especially edges of positive electrodes for Li-ion batteries.

FLAME RESISTANT HEAT-TRANSFER TUBE

Resumen de: CN118043398A

A thermal management system, in particular a battery thermal management system, and a flame retardant heat transfer tube for use in the thermal management system are disclosed. The flame-retardant heat transfer tube comprises a composition containing at least one polyphenylene sulfide polymer, at least one polyphenylsulfone polymer, and at least one thermoplastic elastomer containing epoxy functional groups. A method of cooling and/or operating a battery comprises passing a heat transfer fluid, preferably a water/ethylene glycol mixture, in such a flame-retardant heat transfer tube.

REMOVABLE AND REPLACEABLE BATTERY PACK

Resumen de: US2023118059A1

A removable and replaceable battery pack includes a plurality of battery cells, an outer housing configured to encase the plurality of battery cells, a handle extending from the outer housing configured to be grasped by a user, an electrical connector located on a rear side of the outer housing, and a plurality of MOSFETs configured to control a current output to the electrical connector. The electrical connector includes a plurality of ports and is configured to electrically couple to a battery receptacle connector. Each of the plurality of MOSFETs is thermally coupled to the outer housing.

MANUFACTURE OF ELECTRODE ACTIVE MATERIALS, AND ELECTRODE ACTIVE MATERIALS

Nº publicación: EP4416106A1 21/08/2024

Solicitante:

BASF SE [DE]
BASF SE