Resumen de: FR3127334A1

Busbar pour module de batterie ou pack-batterie à empilement d’accumulateurs à emballage souple, destinée à connecter électriquement au moins un accumulateur du module ou pack, Procédé de réalisation d’un module ou pack-batterie associé. L’invention concerne un busbar pour module de batterie ou pack-batterie. L’invention consiste essentiellement à définir en tant que composant de liaison électrique entre accumulateurs à languettes formant les pôles ou bornes, un busbar (8) dans le corps duquel chaque languette est insérée puis prise en étau par un pion de serrage (10) formant une mâchoire mobile qui peut être déplacée aisément en coulissement dans le corps de sorte à réaliser une connexion électrique en série ou en parallèle en fonction du besoin. Figure pour l’abrégé : Fig. 5

Resumen de: WO2023041852A1

A battery system for storing electrical energy comprising: - an electrochemical battery cell (4); - a gas-release safety venting system capable of releasing a gas generated by thermal runaway of the electrochemical battery cell (4); - a means (131, 132, 222, 20, 22) for cooling the electrochemical battery cell (4) having a face (111) in thermal contact with the electrochemical battery cell (4) and comprising an internal chamber (22) suitable for having a heat transfer fluid flow therethrough, the cooling means (131, 132, 222, 20, 22) comprising a second internal chamber (222) fluidly connected to the gas-release safety venting system, the face (111) being separated from the second chamber (222) by the first chamber (22).

Resumen de: FR3127331A1

Un élément électrochimique comprenant :- une cathode contenant une matière active fonctionnant à un potentiel d’au moins 4,7 V par rapport au couple Li+/Li et au moins un composé choisi parmi le difluorophosphate de lithium (LiPO2F2), le sulfate d’éthylène (ESA), l’oxalate de lithium (Li2C2O4) ;- une anode ;- un électrolyte. Fig.3

Resumen de: FR3127332A1

Procédé de commande (1, 1’, 1’’) d’un organe de réchauffage d’une batterie d’accumulateurs électriques d’un véhicule automobile, ledit organe de réchauffage permettant à ladite batterie d’atteindre une température cible suffisante pour que l’intégralité de l’énergie disponible de la batterie soit exploitable par le véhicule automobile, ledit organe de réchauffage étant alimenté par ladite batterie, ledit procédé comprenant les étapes suivantes : Déterminer (2) un paramètre d’évolution de la consommation énergétique dudit véhicule automobile ;Acquérir (3) une valeur représentative de l’état de charge de ladite batterie ;Déterminer (4) une température seuil fonction de la valeur représentative de l’état de charge de ladite batterie acquise et du profil de roulage déterminé ;Mesurer (5) la température de ladite batterie ;Commander (6) l’activation de l’organe de réchauffage de ladite batterie lorsque la température mesurée est inférieure ou égale à la température seuil déterminée. Figure de l’abrégé : Figure 1

Resumen de: WO2023041395A1

The invention relates to estimating a state of health of an electrochemical device, comprising the steps of: - taking a reading of a thermal response of the electrochemical device to a supply of heat applied to the electrochemical device; - measuring, in the thermal response, at least one parameter representative of a thermal inertia of the electrochemical device; and - deducing from the measurement of said parameter an estimate of the state of health (SOH) of the electrochemical device.

Resumen de: WO2023041290A1

The invention relates to an energy storage element (100) comprising a first anode (101), a second anode (102), a first cathode (103) and a second cathode (104). The anodes (101) and (102) and the cathodes (103) and (104) each comprise an electrode material (105, 106) and a common anode current collector (107) and cathode current collector (108). The common current collectors each comprise a first main region (109, 111) and a second main region (110, 112), which are loaded on both sides with a layer of the relevant electrode material (107, 108), and between the main regions a material-free connection portion (113, 114) which connects the first main regions (109, 111) to the second main regions (110, 112) and which is not loaded with electrode material. The anodes (101, 102) and the cathodes (103, 104) together form a composite body (115), in which there are provided, separated by separator layers (116), in the following sequence: first anode (101)/separator layer (116)/first cathode (103)/separator layer (116)/second anode (102)/separator layer (116)/second cathode (104). Within the composite body (115), the material-free connection portions (113, 114) are each provided in curved form and connect the first and the second anode (101, 102) as well as the first and the second cathode (103, 104). The curved connection portion (113) of the anode current collector (107) protrudes here from one side of the composite body (115), and the curved connection portion (114) of the cathode c

Resumen de: WO2023041852A1

A battery system for storing electrical energy comprising: - an electrochemical battery cell (4); - a gas-release safety venting system capable of releasing a gas generated by thermal runaway of the electrochemical battery cell (4); - a means (131, 132, 222, 20, 22) for cooling the electrochemical battery cell (4) having a face (111) in thermal contact with the electrochemical battery cell (4) and comprising an internal chamber (22) suitable for having a heat transfer fluid flow therethrough, the cooling means (131, 132, 222, 20, 22) comprising a second internal chamber (222) fluidly connected to the gas-release safety venting system, the face (111) being separated from the second chamber (222) by the first chamber (22).

Resumen de: DE102021124581A1

Es wird eine elektrische Energiespeichereinrichtung (2) mit wenigstens einem Batteriemodul (3) beschrieben, das mehrere Batteriezellen (4) umfasst, wobei zumindest in einer Kavität (5) zwischen den Batteriezellen (4) und/oder den Batteriezellen (4) und einer Wandung (10) des Batteriemoduls (3) ein elektrisch isolierendes Füllmaterial (6) vorgesehen ist, das durch eine ausgehärtete Vergussmasse (8) gebildet ist, welche Hohlglaskugeln (7) umfasst. Die beschriebene Technologie umfasst weiterhin ein Verfahren zum Herstellen einer solchen elektrischen Energiespeichereinrichtung (2) sowie ein Kraftfahrzeug (1) mit einer solchen elektrischen Energiespeichereinrichtung (2).

Resumen de: US2023087788A1

An aspect of the present invention is a nonaqueous electrolyte energy storage device including: a positive electrode including a positive composite layer containing a transition metal oxide and a boron element; a negative electrode; and a nonaqueous electrolyte containing a sulfate compound, in which the content of the boron element in the positive composite layer is 0.03% by mass or more.

Resumen de: US2023087786A1

Example illustrations are directed to methods and apparatuses comprising battery cells having weld joints. In an example method, a laser is moved to a shoulder of a battery cell. The method may further include micro welding with the laser a first line segment on the shoulder of the battery cell and moving the laser a distance on the shoulder of the battery cell. The method may also comprise micro welding with the laser a second line segment on the shoulder of the battery cell in response to moving the laser the distance. Example battery cell assemblies, e.g., for a battery pack, may have a battery cell and a weld joint on a shoulder of the battery cell. The weld joint may include a first micro weld line segment and a second micro weld line segment separated by a distance.

Resumen de: US2023087469A1

Systems, devices, computer-implemented methods, and/or computer program products that can facilitate an intelligent battery cell are addressed. In one example, a device can comprise: active battery cell material; and an internal circuit coupled to the active battery cell material and comprising: a circuit board; two alternating current (AC) power points; two isolated direct current (DC) power points; and a controller that can operate one or more switches on an H-bridge circuit to disconnect the device from a main battery in a bypass mode. In another example, a smart cell modulator can comprise: a set of smart battery cells; and a controller that can operate to selectively engage a subset of the smart battery cells to enable load sharing, distributed feedback control, circulate load across one or more smart battery cells of the set of smart battery cells to increase torque, and to enable speed requests.

Resumen de: US2023087207A1

A thermal barrier component for an electrochemical cell according to various aspects of the present disclosure includes a functional material. The functional material includes at least one of a hydrate of a metal carbonate and a hydrate of a metal phosphate. The functional material is configured to release water vapor at a first temperature of greater than or equal to about 100° C. and decompose to release a gaseous fire retardant at a second temperature of greater than or equal to about 300° C. Another thermal barrier component according to various aspects of the present disclosure includes a hydrate and a fire retardant. The hydrate is configured to release water in an amount greater than or equal to about 1 kg at a first temperature of greater than or equal to about 100° C. The fire retardant is configured to decompose at a second temperature of greater than or equal to about 300° C.

Resumen de: US2023087294A1

The testing method disclosed herein tests the thermal propagation occurred in the assembled battery. The testing method includes: calculating a reference voltage value VS based on the voltages of the single batteries; testing thermal propagation based on the reference voltage value VS and the voltages of the single batteries. In the testing, if a first voltage difference (VS−V1) between a voltage V1 of a predetermined first single battery and the reference voltage value VS is a first threshold value VT1 or more, and a second voltage difference (VS−V2) between a voltage V2 of a second single battery adjacent to the first single battery and the reference voltage value VS is a second threshold value VT2 or more, it is determined that the thermal propagation is occurring. According to such a testing method, the thermal propagation occurred can be detected accurately in an early stage.

Resumen de: US2023087183A1

Process for making a cathode active material for a lithium ion battery, said process comprising the following steps: (a) treating a mixed oxide according to general formula Li1+xTM1−xO2 with at least one aromatic di-, tri- or tetracarboxylic acid or with a combination of at least two of the foregoing, wherein TM is a combination of Mn and Ni and, optionally, at least one more metal selected from Ba, Al, Co, Ti, Zr, W, Fe, Cr, K, Mo, Nb, Ta, Mg and V, and x is in the range of from zero to 0.2, (b) subjecting said precursor to heat treatment a temperature in the range of from 500 to 800° C.

Resumen de: US2023087166A1

An electrode assembly is provided and includes: a first electrode sheet comprising a first flat and straight portion and a first tab connected to an end portion of the first flat and straight portion along a first direction; a second electrode sheet comprising a second flat and straight portion, the first flat and straight portion and the second flat and straight portion being stacked along a second direction perpendicular to the first direction; a first separator and a second separator, the first separator comprising a first separation portion, a first bent portion and a first extension portion, and the second separator comprising a second separation portion, wherein the first separation portion and the second separation portion are positioned on both sides of the second flat and straight portion along the second direction respectively, and separate the first flat and straight portion from the second flat and straight portion.

Resumen de: US2023087148A1

Wound positive-electrode core body exposed pails are bundled and connected to a positive-electrode collector body. A tape is affixed straddling a separator positioned on the outermost surface of a winding electrode body, and the outermost surface of the wound positive-electrode core body exposed parts. The tape has a porous base material and an adhesive layer provided on the base material. The tape has a region in which the adhesive layer b is not provided on the base material a between the connection part between the tape and the separator positioned on the outermost surface of the winding electrode body, and the connection part between the tape and the outermost surface of the wound positive-electrode core body exposed parts.

Resumen de: US2023093575A1

The present disclosure provides a lithium ion battery, a battery pack, an electric vehicle and an energy storage device. The lithium ion battery includes a casing and an electrode core packaged in the casing. The electrode core includes a positive electrode sheet, a negative electrode sheet, and a separator located between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet includes a positive electrode current collector and a positive electrode material layer loaded on the positive electrode current collector. Among the positive electrode current collector, the positive electrode material layer, the negative electrode sheet, and the separator, the one with the lowest melting point is defined as an effective component. The effective component meets:80

Resumen de: US2023093574A1

An assembly is provided that may include a battery, and an end cap mechanically and electrically coupled to the battery. The end cap may contain an electrical connector with at least one electric cable configured to supply current to at least one operating system electrically coupled to the battery. The end cap may also contain at least one electronic board coupled to the battery, and may be configured to detach from the battery to provide access to the electrical connector and the electronic board.

Resumen de: US2023093576A1

The present disclosure relates to a method for producing, high-purity lithium hydroxide from a lithium-containing waste liquid of a spent lithium secondary battery.

Resumen de: US2023092801A1

Embodiments of the present disclosure provide a power display method and apparatus, and an electronic device. The method includes: determining, in a case that a target condition is satisfied, a target charging power in each of N pieces of preset duration, to obtain N target charging power, where N is a positive integer; determining a target consumed power in each of the N pieces of preset duration, to obtain N target consumed power; and generating a target charging curve according to a current remaining power, N target charging power, and N target consumed power of the electronic device, where the target condition is that the electronic device is in a charging state, or the electronic device is in a simulated charging state.

Resumen de: US2023092675A1

A process for producing a lithium nickel metal oxide material is provided together with a particulate lithium nickel metal oxide material with a defined crystallite size. Such materials find utility as cathode materials for secondary lithium-ion batteries. The process comprises a first calcination step which comprises heating at a temperature of between about 460° C. and about 540° C. for a period of between three and ten hours, and a subsequent second calcination step which comprises heating to a temperature greater than about 600° C. for a period of between 30 mins and 4 hours.

Resumen de: US2023092616A1

A battery pack that includes a plurality of battery modules respectively having a pair of fixing portions provided at both longitudinal sides thereof; a tray on which the plurality of battery modules are placed; a pair of side covers for covering both widthwise sides of the tray and having a first fastening hole formed at a location corresponding to a coupling hole formed in the fixing portion; and a module fixing bar positioned at a widthwise center of the tray and shaped to extend across an upper surface of the tray along a longitudinal direction of the tray, the module fixing bar having a second fastening hole formed at a location corresponding to the coupling hole formed in the fixing portion.

Resumen de: US2023092588A1

The invention relates to a metal accumulation inhibiting and performance enhancing isolated or synthesized supplement for use in or in association with rechargeable electrochemical energy storage cells, and a system for delivering the supplement including articles of plastic, articles containing plastic, articles similar to plastic, plastic containers, apparatus, porous electrodes, liquids and electrolytes, in particular, articles, apparatus, electrodes, insolating sheets, liquids and electrolytes associated with rechargeable electrochemical energy storage cells incorporating one or more supplements. An effective amount of the supplement typically exhibits foaming of an electrolyte, providing a visual indicator of activity in attenuating metal deposition on, and thereby reducing metal accumulation on, various surfaces in the rechargeable electrochemical storage cell.

Resumen de: US2023093333A1

A battery system for a vehicle includes a battery tray having a base wall, a plurality of side walls, and a cover that collectively define a receiving zone. A vent includes an inlet and an outlet exposed to the battery receiving zone. A battery is supported by the base wall. A battery electronic controller (BEC) is arranged in the receiving zone and directly connected to the battery.

Resumen de: US2023093098A1

A battery includes: a power generating element including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer; a structure located above a first main surface of the power generating element and having insulating properties; and a laminate film accommodating the power generating element and the structure, wherein a gap is located between the first main surface and the laminate film such that the gap is in contact with the structure.