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1261
resultados
Última actualización
29/04/2025 [07:13:00]
Resultados 1050 a 1075 de 1261
Resumen de: WO2025079070A1
The invention provides a process for preparing anhydrous lithium bromide, comprising the steps of converting an aqueous suspension of lithium carbonate with hydrobromic acid into a solution of lithium bromide; removing residual carbon dioxide from the solution by gas-stripping, wherein the solution has acidic pH; neutrali zing the acidic lithium bromide solution by addition of lithium hydroxide to form lithium bromide brine with a nearly neutral pH; and recovering anhydrous lithium bromide from the brine. The so- formed anhydrous lithium bromide is used as a starting material in the mechanochemical synthesis of bromide-containing Li-argyrodite, which is useful in the fabrication of all-solid-state battery.
Resumen de: WO2025076569A1
The present invention relates to a battery device (10), in particular for a vehicle, comprising a plurality of battery cells (20) arranged next to one another for storing electrical energy, wherein each battery cell (20) comprises a contact-making section (22) for electrical contact-making and the battery cells (20) are oriented by way of their contact-making sections (22) towards a common contact-making side (KS), wherein cell contact-making means (30) also make electrically conductive contact with the contact-making sections (22) on the contact-making side (KS), characterized in that the cell contact-making means (30) and the contact-making sections (22) of the battery cells (20) are encapsulated in an electrically insulating adhesive layer (40), wherein the adhesive layer (40) has at least one cooling surface (42) which is in areal, heat-transmitting contact with a counterpart cooling surface (52) of an active cooling device (50), wherein at least sections of the adhesive layer (40) are also connected to the cell contact-making means (30) in a force-transmitting manner.
Resumen de: WO2025078199A1
A method for determining a state of charge SOC and/or a state of health SOH of a battery cell with a nominal charge Q is proposed, wherein the nominal charge Q comprises a charge Q+ of a first electrode and a charge Q- of a second electrode of the battery cell and an inactive charge Q0 of the battery cell. The method according to the invention is characterised by the steps of: - (S1) providing a first functional relationship V(Q+,Q-) for an open-circuit voltage of the battery cell; - (S2) providing a second functional relationship D(Q+,Q-,Q0) for an expansion of the battery cell; - (S3) sensing a measured value V of the open-circuit voltage; - (S4) sensing a measured value D of the expansion; and - (S5) determining the state of charge SOC and/or the state of health SOH by solving the equation system V = V(Q+,Q-), D = D(Q+,Q-,Q0) and Q = Q+ + Q- + Q0. The invention also relates to a battery management system and to a battery cell.
Resumen de: DE102024128869A1
Eine Batteriepackbaugruppe, die eine Behälterbaugruppe beinhaltet, die eine Mischung aus Wirkstoffen enthält. Die Behälterbaugruppe ist dazu konfiguriert, die Mischung aus Wirkstoffen als Reaktion auf ein Wärmeereignis in der Nähe der Behälterbaugruppe freizusetzen. Die Mischung aus Wirkstoffen kann Natriumsilikatgranulat, einer oder mehreren Perlen auf Keramikbasis, Aluminiumoxidpartikel, Melamin-Poly(zinkphosphat) und Aluminiumtrihydrat beinhalten.
Resumen de: DE102023134514A1
Ein Kühlsystem für prismatische Zellen umfasst eine erste prismatische Zelle mit einer ersten Fläche, einer zweiten Fläche, die winklig zur ersten Fläche ausgerichtet ist, und einer dritten Fläche, die parallel zur ersten Fläche und winklig zur zweiten Fläche ausgerichtet ist. Ein Kühlmantel bietet mehrere Kühlmittelströmungsdurchgänge. Ein erstes Kühlsegment des Kühlmantels berührt entweder die erste oder die dritte Fläche der ersten prismatischen Zelle. Ein zweites Kühlsegment des Kühlmantels berührt direkt die zweite Fläche der ersten prismatischen Zelle. Das zweite Kühlsegment ist mit dem ersten Kühlsegment zusammenhängend und fluidisch verbunden, um die gleichzeitige Kühlung der ersten Fläche oder der dritten Fläche und der zweiten Fläche der ersten prismatischen Zelle durch den Durchfluss eines Kühlmittels durch die Kühlmittelströmungsdurchgänge zu unterstützen.
Resumen de: DE102023004058A1
Die Erfindung betrifft eine Halterungsvorrichtung (6) zur Halterung eines Leitungssatzes (2) an einem Akkumulator (1), wobei die Halterungsvorrichtung (6) eine Öffnung oder Bohrung zum Aufschieben auf einen Bolzen (5) aufweist, wobei an der Halterungsvorrichtung (6) eine Opferanode (7) aus einem elektrochemisch unedlen Material, insbesondere einer Magnesium- und/oder Aluminiumlegierung, angeordnet ist, die eine Öffnung oder Bohrung zum gemeinsamen Aufschieben auf den Bolzen (5) mit der Halterungsvorrichtung (6) aufweist.
Resumen de: DE102023004056A1
Die Erfindung betrifft einen elektrischen Energiespeicher mit einer Mehrzahl elektrisch miteinander verschalteter, in einem Gehäuse (2) mittels eines Zellhalters (1) angeordneter Einzelzellen, welche zumindest abschnittsweise thermisch mit einem Temperiermedium gekoppelt sind. Erfindungsgemäß ist vorgesehen, dass der Zellhalter (1) rahmenförmig mit zumindest einer zur Optimierung einer Strömung des die Einzelzellen zumindest abschnittsweise umströmenden Temperiermediums angeordneten Komponente (K) mit einer zu der Anzahl der Einzelzellen korrespondierenden Anzahl von Aufnahmeeinheiten (A) ausgebildet ist, wobei ein an dem Zellhalter (1) angeordnetes oder anordbares Abdeckelement (3) zur Abdeckung der Einzelzellen vorgesehen ist und der Zellhalter (1) und/oder das Abdeckelement (3) bei einem in dem Gehäuse einen vorgegebenen Temperaturschwellwert überschreitenden Temperaturwert schmelzen beziehungsweise schmilzt, so dass eine Ausbreitung eines thermischen Durchgehens von einer Einzelzelle auf eine benachbarte Einzelzelle gehemmt ist.
Resumen de: DE102023128187A1
Die Erfindung betrifft eine Zellanordnung (20) für eine Fahrzeugbatterie (10), mit einer Vielzahl an Batteriezellen (22) und mit einem Zellhalter (24), welcher dazu eingerichtet ist, die Batteriezellen (22) relativ zueinander zu positionieren, und welcher einen Schaumkörper (26) umfasst, welcher für jede Batteriezelle (22) einen Durchgang (32) aufweist, durch welchen die jeweilige zugeordnete Batteriezelle (22) hindurchgesteckt ist, wobei zwischen einer den jeweiligen Durchgang (32) begrenzenden Wand (34) und einer Außenwand der jeweiligen in diesen Durchgang (32) eingesteckten Batteriezelle (22) wenigstens ein Spalt freigehalten ist, welcher für ein Kühlen der Batteriezelle (22) von einem Kühlfluid durchströmt werden kann.
Resumen de: WO2025078794A1
A method of manufacturing porous silicon comprising providing magnesium silicide with silica nanoparticles and silica microparticles or by providing magnesium with silica nanoparticles and silica microparticles. Either mixture is then heated up to 500°C.
Resumen de: WO2025077965A1
A self-supporting electrode film (16) for an electrochemical cell (12) comprises a binder system, which has a first binder (20) and a second binder (22), and an active material (18) contained in the binder system, wherein the first binder (20) is a fluorine-free binder, and wherein the second binder (22) is a non-fibril-forming binder having an average particle size d50 in the range of 40 to 200 nm. The binder system is free of binders based on polytetrafluoroethylene (PTFE) and/or cellulose. The invention also relates to an electrode (10), to an electrochemical cell (12) and to a method for producing a self-supporting electrode film (16).
Resumen de: WO2025077964A1
The invention relates to a battery cell, comprising: a housing (10) having a tubular, in particular hollow-cylindrical, housing part, a first end plate (20), which in particular has a circular circumference and has a first centre portion, and a second end plate (30), which in particular has a circular circumference and has a second centre portion, wherein a first end of the housing part is closed by the first end plate and a second end of the housing part is closed by the second end plate; an electrode winding, which is accommodated in an interior of the housing and has a strip-like first electrode with a first current collector and a strip-like second electrode with a second current collector, which, in a layered arrangement and with the interposition of a first and a second separator, are coiled around a longitudinal axis of the battery cell; and at least one connecting element, which is designed to restrict a movement of the first centre portion in the direction of the longitudinal axis away from the interior of the housing and to restrict a movement of the second centre portion in the direction of the longitudinal axis away from the interior of the housing, in particular in order to prevent or at least restrict a distortion of the first and the second end plate, in particular due to an overpressure prevailing in the interior of the housing with respect to an exterior of the housing.
Resumen de: DE102023210130A1
Die Erfindung betrifft eine Vorrichtung (1) zur Bereitstellung elektrischer Energie umfassend einen Stromerzeuger (2), eine erste Batterie (3), eine zweite Batterie (4) und eine Steuerung (5), wobei die Steuerung (5) so konfiguriert ist, dass ein erster Stromrichter (6) der ersten Batterie (3) so gesteuert wird, dass die erste Batterie (3) immer wieder nur entladen wird und erst dann auf Laden umschaltet und ein zweiter Stromrichter (7) der zweiten Batterie (4) so gesteuert wird, dass die zweite Batterie (4) immer wieder nur geladen wird und erst dann auf Entladen umschaltet, wenn entweder die erste Batterie (3) einen unteren Grenzwert (8) für ihren Ladezustand oder die zweite Batterie (4) einen oberen Grenzwert (9) für ihren Ladezustand erreicht hat. Die Erfindung betrifft ferner ein Verfahren zum Betreiben einer Vorrichtung (1) zur Bereitstellung elektrischer Energie.
Resumen de: DE102023127839A1
Die Erfindung betrifft eine Batteriezelle für eine Hochvoltbatterie mit einer Zellgehäuseanordnung (4), in der ein Wickeldorn (14;38) angeordnet ist, auf den eine Anoden- und eine Kathodenfolie (48, 50), die durch mindestens eine Seperatorfolie (52) elektrisch isoliert sind, gewickelt sind, wobei ein Plus- und ein Minuskontaktorgan (16, 18; 34, 36) vorgesehen sind, die mit der entsprechenden Anoden- und Kathodenfolie () elektrisch verbunden sind, wobei der Wickeldorn (14; 38) einen Anoden- und einen Kathodendornteil (20, 22; 44, 46) aufweist, die voneinander durch einen Isolationsbereich (24; 42) elektrisch isoliert sind, wobei an jeweiligen Enden des Wickeldorns (14; 38) jeweils eine Anoden- und eine Kathodendeckelplatte (6, 8) vorgesehen sind, die mit dem jeweiligen Anoden- und Kathodendornteil (20, 22; 44, 46) sowie der jeweiligen Anoden- und eine Kathodenfolie (48, 50) elektrisch verbunden sind. Desweiteren betrifft die Erfindung ein Verfahren zur Herstellung einer derartigen Batteriezelle.
Resumen de: WO2025077631A1
A positive electrode material precursor, a single crystal positive electrode material and a preparation method therefor, and a lithium-ion battery. The chemical general formula of the single crystal positive electrode material is LixNiaCobMncNdO2, wherein 0.98≤x≤1.1, 0.50≤a≤0.98, 0
Resumen de: WO2025076568A2
The invention relates to an accumulator cover (3) for an accumulator (1). The accumulator cover (3) comprises: - a cover plate (9) with an outer side (11) and an inner side (13) and a through-opening (16) that penetrates the cover plate (9) between the outer side (11) and the inner side (13); - a rivet (17) that projects through the through-opening (16) of the cover plate (9); - a pole plate (18), wherein the pole plate (18) is arranged on the outer side (11) of the cover plate (9) and is electrically conductively coupled to the rivet (17); - a separating plate (19), wherein the separating plate (19) is arranged on the outer side (11) of the cover plate (9) between the pole plate (18) and the cover plate (9). A current collector (20) is designed as a component independent of the rivet (17), wherein the current collector (20) is electrically conductively coupled to the rivet (17).
Resumen de: WO2025078312A1
According to an aspect of the present inventive concept, there is provided a method (1000) for manufacturing a cylindrical battery cell (100), the cylindrical battery cell (100) comprising a can (110) for housing an electrode roll (120) and a current collector (130), the current collector (130) having a central region (132) for attaching to the electrode roll (120), and a peripheral portion (134) extending axially away from the electrode roll (120), the method comprising: fastening (1100) the central region (132) of the current collector (130) at an end of the electrode roll (120); arranging (1200) the current collector (130), and the electrode roll (120) fastened thereto, in the can (110); beading (1300) the can (110) to form a beading groove (114); providing (1400) counter-pressure during beading of the can (110) using a down-holder (200), the down-holder (200) having a cavity (206) in which at least the peripheral portion (134) of the current collector (130) is arranged during the beading (1300); and pressing (1500) the peripheral portion (134) of the current collector (130) radially outwards to thereby bring the peripheral portion (134) of the current collector (130) into contact with the beading groove (114).
Resumen de: US2025125376A1
A composite metal foil and a lithium battery including the same are provided, wherein the composite metal foil includes a conductive substrate, a first metal layer, and a second metal layer. The first metal layer is disposed at at least one surface of the conductive substrate and in direct contact with the conductive substrate, and the first metal layer is nickel (Ni). The second metal layer is disposed at a surface of the first metal layer. A nucleation overpotential of the second metal layer is less than a nucleation overpotential of the first metal layer, and a material of the second metal layer is at least one selected from the group consisting of zinc (Zn), tin (Sn), indium (In), silver (Ag), a zinc alloy, and a tin alloy.
Resumen de: US2025125362A1
Polypyrrole:carboxymethyl cellulose (PPy:CMC) composites were synthesized by in situ chemical oxidative polymerization. Following that, carbon-additive-free LiCoO2/PPy:CMC cathodes were fabricated by using water as a processing solvent. Carbon-additive-free cathodes were then cycled to study the performance of PPy:CMC electrode matrices. The results indicate that PPy:CMC composites were electrochemically stable within the cathode operating voltage window. As the cycle number increased, electrolyte anions became dopants for PPy units in PPy:CMC composites. The sharp spike in cell voltage of LiCoO2/PPy:CMC cathodes in the first charging cycle indicated that undoped/neutral PPy units in PPy:CMC composite were oxidized and doped to become fully conductive. This unique phenomena teaches an activation procedure for using other CP-based electrode matrices in Li-ion batteries such as polyaniline:carboxy methyl cellulose (PANI:CMC) composites.
Resumen de: US2025125360A1
An electrochemical apparatus, including a positive electrode sheet, where the positive electrode sheet includes a positive electrode current collector, a first safety layer, and a first positive electrode active material layer. The positive electrode sheet includes a first region provided with the first positive electrode active material layer. The first safety layer includes a first part located in the first region. The first part is disposed between the positive electrode current collector and the first positive electrode active material layer. When the electrochemical apparatus is in a fully charged state at 25° C., a variation coefficient δ1 of a resistance R in the first region of the positive electrode sheet is ≤15%. The electrochemical apparatus can have good low-temperature performance while the safety performance of the electrochemical apparatus is met.
Resumen de: US2025125361A1
A secondary battery of the present disclosure includes a stacked electrode assembly in which a plurality of positive electrodes and a plurality of negative electrodes are alternately stacked with a separator interposed therebetween. The positive electrodes include a positive electrode metal current collector, a positive electrode active material layer stacked on the positive electrode metal current collector, and an adhesive layer adhering to the separator. A region of the positive electrode metal current collector where the positive electrode active material layer is not stacked forms a positive electrode metal current collector exposed portion. An edge portion of the positive electrode active material layer includes a first edge portion adjacent to the positive electrode metal current collector exposed portion and a second edge portion disposed on a side opposite to the first edge portion when viewed from a stacking direction in which the positive electrode and the negative electrode are stacked. The adhesive layer includes a first adhesive layer stacked on the positive electrode metal current collector exposed portion and extending along the first edge portion, and a second adhesive layer extending along the second edge portion.
Resumen de: WO2025078684A1
The invention relates to a method for producing a battery cell, having at least two battery poles arranged on opposite sides, wherein at least one electrode stack having a multiplicity of anode foils and cathode foils, which are separated from one another by separator foils, is provided, wherein the anode foils have anode arresters at their ends and the cathode foils have cathode arresters at their ends, wherein the anode arresters of the anode foils are bundled at a first side and the cathode arresters of the cathode foils are bundled at a second side of the electrode stack, the bundled anode arresters and/or cathode arresters are connected in an electrically conductive manner at least regionally by means of at least one arrester extension, the at least one electrode stack provided with at least one arrester extension is inserted into a cell housing, the anode arresters are connected directly or indirectly to a collector of a first battery pole in an electrically conductive manner via the at least one arrester extension and the cathode arresters are connected directly or indirectly to a collector of a second battery pole in an electrically conductive manner via the at least one arrester extension, and wherein the cell housing is closed by the first battery pole and the second battery pole. The invention also relates to a battery cell.
Resumen de: US2025125399A1
The present disclosure relates to a separator supplying device capable of continuously supplying a separator and a separator supplying method using the same, which can minimize the space for replacing a separator and prevents separator cutting defects that occur when cutting the separator, thereby supplying a separator with a low defect rate.
Resumen de: US2025125357A1
An anode material and a battery provided. The anode material includes artificial graphite, and there are pores inside and/or on surface of the artificial graphite. The anode material has an oil absorption value of O mL/100 g, a pore volume of V cm3/kg, and a specific surface area of S m2/g, where 400≤O*V*S≤1500. The anode material improves adsorption and infiltration performance of the anode material to electrolyte, and enhance high rate charge-discharge performance of the anode material, without affecting processing performance.
Resumen de: US2025125356A1
An object of the present invention is to provide a carbonaceous material from which an electrochemical device having a high initial electrostatic capacitance, an excellent effect of suppressing gas generation during charging and discharging, and excellent durability can be obtained, and a method for producing the carbonaceous material, an electrode active material for an electrochemical device containing the carbonaceous material, an electrode for an electrochemical device containing the electrode active material, and an electrochemical device. The present invention relates to a carbonaceous material having a BET specific surface area of 1550 to 2500 m2/g, a value of an oxygen content/hydrogen content per specific surface area of 1.00 to 2.10 mg/m2, and an electrical conductivity of 10 to 15 S/cm determined by powder resistance measurement at a load of 12 kN.
Nº publicación: US2025125444A1 17/04/2025
Solicitante:
HYUNDAI MOTOR COMPANY [KR]
KIA CORP [KR]
HYUNDAI MOTOR COMPANY,
KIA CORPORATION
Resumen de: US2025125444A1
In a battery case for a vehicle of the present disclosure, channels of a battery cooling block are arranged in parallel, thereby efficiently cooling a battery regardless of a position of the battery. In addition, a sealer is used to prevent a cooling medium, which is introduced into a cooling channel that exchanges heat with the battery, from being introduced into a non-cooling channel that does not exchange heat with the battery, such that the cooling medium is not introduced into the battery case, which prevents an unnecessary in weight of the battery case. In addition, a cooling block and a side member of a battery case are configured as extruded components to ensure better structural rigidity than a general battery case made by pressing, thereby allowing more cells to be installed by reducing the number of case members and penetration mounts required to ensure structural rigidity of the battery case.
BOPI
Sede Electrónica
