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1111
resultados
Última actualización
02/09/2024 [07:41:00]
Resultados 500 a 525 de 1111
Resumen de: FR3146027A1
L’invention concerne un véhicule automobile comprenant une batterie de traction qui comprend des électrodes (A, C) assemblées l’une avec l’autre dans un repère dans l’espace comprenant un axe longitudinal (X) suivant une direction de longitudinale des électrodes (A, C), un axe latéral (Y) perpendiculaire à l’axe longitudinal (X), et un axe d’épaisseur (Z) perpendiculaire à l’axe longitudinal (X) et à l’axe latéral (Y),caractérisée en ce que les électrodes (A, C) forment chacune une bande plane, et sont assemblées l’une avec l’autre en double spirale autour d’un axe central (O) parallèle à l’axe longitudinal (X). L’invention concerne également une cellule, une électrode et un procédé sur la base d’un tel véhicule. Figure. 2
Resumen de: FR3146024A1
L’invention concerne une batterie (10) électrique comprenant une pluralité de cellules (11) électrochimiques disposées à l’intérieur d’une structure (12) de confinement. Ladite batterie (10) est munie d’un dispositif de refroidissement comprenant au moins un caloduc (1) configuré pour contenir un fluide caloporteur prévu pour subir un cycle d’évaporation et de condensation, prélevant des calories par une extrémité (4) d’évaporation dudit caloduc (1) disposée en contact avec lesdites cellules (11) et les restituant par une extrémité (5) de condensation dudit caloduc (1) à une source froide (F) se trouvant à l’extérieur de la structure (12) de confinement. Figure pour l’abrégé : Figure 2
Resumen de: FR3146023A1
Le système (10) de régulation thermique comprend un organe de transfert thermique comprenant une enceinte rempli d’un fluide de travail à changement de phase subissant un cycle d’évaporation et de condensation, couplé à une première extrémité au module de batterie, formant une première source, dite chaude, pour prélever des calories et couplé à une deuxième extrémité à une source froide pour restituer les calories prélevées à la source chaude. Le système (10) comprend un moyen de pilotage de la pression dans l’enceinte de l’organe configuré pour faire varier les échanges thermiques entre la source chaude et la source froide, le moyen de pilotage comprenant un moyen d’aspiration et/ou de refoulement de gaz, dit moyen de variation de pression, dans l’enceinte pour faire varier la pression en fonction d’une valeur de température mesurée dans l’enceinte. FIGURE ABREGE : FIGURE 1.
Resumen de: FR3146026A1
Ensemble de cellules électrochimiques (F10) dont chaque cellule électrochimique (10) membre est pourvue d’une enveloppe comprenant au moins une face extérieure sur laquelle sont agencées une borne négative et une borne positive et une face intérieure délimitant un volume intérieur dans lequel sont agencées une électrode positive reliée par une première liaison électrique à la borne électrique positive et une électrode négative reliée par une deuxième liaison électrique à la borne électrique négative.L’agencement de l’électrode positive et de la électrode négative est unique et le même pour toutes les cellules électrochimiques (10) de la ensemble (F10) alors que, l’agencement des bornes électriques positive et négative sur la face extérieure diffère d’une cellule électrochimique (10) à l’autre. Figure 2
Resumen de: WO2024169120A1
Provided are a joining member, and a battery pack having a joining member. The joining member comprises a snap-fit main body, joining portions and a fixing portion, wherein a plurality of joining portions are arranged side by side and/or at random in a first direction of the snap-fit main body, and each joining portion has an engagement slot or engagement head structure; and the fixing portion is arranged in a second direction of the snap-fit main body, and is a notch or a boss, which has a function of stopping a movement. The joining member is snap-fitted with a casing of a battery pack by means of the fixing portion, and is snap-fitted with an upper holder of a battery cell module by means of the joining portions, so as to fix the casing of the battery pack to a battery module. Some of the joining portions of the joining member arranged between the casing and the battery module do not only play a role in fixing the casing of the battery pack to the battery module, but can also bear deformation pressure caused by a force exerted on the casing of the battery pack, thereby preventing the casing of the battery pack from coming into direct contact with a battery cell or a connecting piece when the casing is subjected to the force to deform, so that a short-circuit failure of the battery cell module and potential safety hazards caused thereby are avoided.
Resumen de: WO2024169812A1
The present application relates to the technical field of communications, and discloses a charging method and apparatus, and an electronic device. The charging method comprises: in the process of detecting, on the basis of a target level time sequence, whether a charger supports a first fast charging protocol, when a first signal line of a charging interface of an electronic device is at a high level, configuring the first signal line as a receiving signal line of a universal asynchronous receiver-transmitter (UART) serial port mode, and configuring a second signal line of the charging interface as a sending signal line of the UART serial port mode; when a first data packet that supports a second fast charging protocol and is sent by the charger is received within a first duration, performing charging according to the second fast charging protocol; and when the first data packet is not received within the first duration, performing charging according to the first fast charging protocol.
Resumen de: WO2024169334A1
The present application provides a battery cell, an electrochemical apparatus and an electronic device. The battery cell comprises a hard casing and an electrode assembly, an accommodating cavity is defined by the casing, and a first opening communicated with the accommodating cavity is formed in the casing; the electrode assembly is accommodated in the accommodating cavity, and the electrode assembly comprises a first electrode sheet and a first tab electrically connected to the first electrode sheet; the battery cell further comprises a first sealing layer arranged at the first opening, the end of the first tab away from the first electrode sheet extends out of the casing by means of the first sealing layer, and the first sealing layer comprises an insulating sealing material. The thickness of the battery cell provided by the present application can be reduced to 4.2 mm (even 3 mm) or below, so as to achieve ultrathinness, and an application in ultrathin electronic devices is facilitated.
Resumen de: WO2024168999A1
The present application discloses a negative electrode material, a preparation method therefor and a use thereof. The preparation method comprises the following steps: (1) carrying out primary carbonization on a biomass material to prepare a pre-carbonized material; (2) mixing metal halide with graphite, heating the mixture and carrying out heat preservation treatment to obtain a metal halide-graphite intercalation compound; (3) mixing the metal halide-graphite intercalation compound with a hydrogen peroxide solution to implement a reaction, and cleaning the obtained product to obtain secondary expanded graphite; and (4) mixing the pre-carbonized material prepared in step (1) with the secondary expanded graphite prepared in the step (3), crushing the mixture, and then carrying out secondary carbonization to obtain the negative electrode material.
Resumen de: WO2024169633A1
Disclosed in the present application are a full-tab jelly roll structure, a cylindrical battery, a preparation method and an electronic device. The full-tab jelly roll structure comprises a jelly roll, an insulating tape and a swelling tape. The insulating tape is attached around an end portion of the jelly roll in the radial direction of the jelly roll, and the swelling tape surrounds and covers the insulating tape in the radial direction of the jelly roll. The full-tab jelly roll structure provided in the present application employs the elastic restraint of the swelling tape to solve the problem that an electrode plate does not properly fit to a jelly roll, thereby improving the cycle performance of a battery.
Resumen de: WO2024169016A1
Disclosed in the present application are a self-heating structure and a battery pack comprising the self-heating structure. The self-heating structure comprises: a heating member, which comprises a heating body and a connection lead formed on the heating body, wherein the connection lead is used for being electrically connected to a positive-electrode tab or a negative-electrode tab of a core pack, such that the heating member and the core pack form a self-heating loop; and a control unit, which controls the on/off of the self-heating loop according to the temperature of the core pack, wherein the control unit is arranged on the connection lead to integrate the control unit with the connection lead.
Resumen de: GB2619658A
The present invention belongs to the technical field of sodium-ion batteries, and discloses a sodium-ion battery positive electrode material, and a preparation method therefor and the use thereof. The general formula of the sodium-ion positive electrode material is NaaMbNicPdO2, wherein M is at least one of cobalt, iron and manganese; and 0<a<1, 0<b<1, 0<c<1, and 1-b-c<d<1. In the sodium-ion positive electrode material of the present invention, part of nickel and phosphorus enter the crystal lattices of a sodium-rich material to occupy sodium sites, such that not only is the mixed arrangement of cations reduced, but the interlayer spacing of crystals is also increased, and the specific capacity and cycle performance of the positive electrode material are improved; and the surface thereof is further coated with a metal oxide, such that the cycling stability and safety are improved, and not only is an increase in the total impedance effectively prevented and a transfer impedance during charging in a desodiation state reduced, but a side reaction of an electrolyte and the positive electrode material is also prevented.
Resumen de: GB2619230A
The present invention relates to the technical field of sodium-ion batteries, and disclosed are a nickel-rich high-voltage sodium-ion positive electrode material, a preparation method therefor, and an application thereof. The general formula of the sodium-ion positive electrode material is NasNit(PO4)(SO4)/F@M-C, 2≤s≤4, and 0.5≤t≤1.5; and M is an oxide of at least one of zinc, nickel, aluminum, manganese, chromium, molybdenum, manganese, copper, and calcium. In the sodium-ion positive electrode material of the present invention, a stabilizer is added so that the structural stability of the positive electrode material is strengthened, and cyclic discharge performance of the material is improved; a coating layer (formed by tightly combining a metal oxide and the positive electrode material) in the sodium-ion positive electrode material can stabilize ion and electron transport kinetic properties of the material, improve cycle performance of the positive electrode material, hinder the material from continuing agglomeration, and control a particle size.
Resumen de: GB2619874A
A carbon nanosheet-based sodium-ion battery negative electrode material, and a preparation method therefor and an application thereof. The sodium-ion battery negative electrode material is graphene oxide @CeO2/carbon nanosheet. The preparation method comprises: firstly, adhering CeO2 to the carbon nanosheet; and then wrapping the outer layer with graphene oxide, so that CeO2 is located between the carbon nanosheet and the graphene oxide.
Resumen de: WO2024171999A1
According to the present invention, in a DC power source, two battery packs connected in parallel form a current circulation circuit through a first secondary coil and a second secondary coil of a step-down transformer. The two secondary coils allow a secondary AC current to circulate exclusively in this current circulation circuit, by supplying a primary AC current to a primary coil of the step-down transformer. The current circulation circuit has a contactor connected in series with the battery packs. The circulation of the secondary AC current is performed immediately before opening of the contactor. A bypass circuit composed of a capacitor and a diode connected in series is connected to the contactor in parallel. Batteries are each composed of a large number of cells connected in series. The secondary coils of the step-down transformer are connected to the batteries in series. The primary coil of the step-down transformer is applied alternately with a positive-pulse voltage and a negative-pulse voltage. Cell voltages are detected when the positive-pulse voltage is applied and when the negative-pulse voltage is applied. Impedance of each of the cells, especially inner resistance thereof, is detected on the basis of the difference between the two cell voltages.
Resumen de: WO2024173390A2
A lithium-ion battery cell includes an anode having a plurality of spaced apart lithium storage layer segments in electrical contact with the anode current collector, wherein the lithium storage layer segments include at least 40 atomic % silicon, tin, germanium; or a combination thereof. The cell includes a cathode having a cathode active material layer in electrical contact with a cathode current collector. The cell also includes a lithium-ion-containing solid-state electrolyte (SSE) that is i) interposed between the plurality of spaced apart lithium storage layer segments and the cathode active material, and ii) provided at least partially within gaps separating the spaced apart lithium storage layer segments. Methods of making the lithium-ion battery cell are also described.
Resumen de: WO2024173383A2
A method for making a lithium-ion battery includes constructing a precursor cell having an anode, a cathode and a solid-state electrolyte (SSE). The anode includes a silicon-containing lithium storage layer deposited onto an anode current collector by a CVD or PVD process. The cathode includes a cathode active material layer in contact with a cathode current collector. The SSE is interposed between the lithium storage layer and the cathode active material layer. The precursor cell is electrochemically treated by applying at least a first voltage cycle between the anode and cathode to cause at least a partial charging of the anode, and subsequently, at least a partial discharging of the anode. The precursor cell is heated to a temperature T1 of at least 40 °C, and after heating, the cell is cooled to a temperature below T2 to produce the lithium-ion battery, wherein T2 is less than T1.
Resumen de: WO2024169769A1
A lithium secondary battery capable of self-poisoning. The lithium secondary battery includes: a positive electrode active material; a negative electrode active material; an electrolyte located between the positive electrode active material and the negative electrode active material, such that lithium ions move between the positive electrode active material and the negative electrode active material; and a poisoning agent provided in the lithium secondary battery, which poisoning agent comprises a reaction initiation catalyst and a doping agent, wherein the doping agent has a phosphorus-oxygen bond, a boron-oxygen bond or a sulfur-oxygen bond which is exposed at a free end, or has a phosphorus-oxygen bond, a boron-oxygen bond or a sulfur-oxygen bond which is not exposed at the free end, and is shielded by an organic or inorganic group. When the lithium secondary battery heats up to a first preset temperature, the doping agent will react with the reaction initiation catalyst and release at least one phosphorus-oxygen bond, boron-oxygen bond or sulfur-oxygen bond which has a free radical or an unsaturated bond, so as to contaminate the positive electrode active material of the lithium secondary battery, such that the lithium secondary battery is harmless.
Resumen de: WO2024169768A1
A lithium secondary battery capable of self-poisoning. The lithium secondary battery includes a poisoning agent, which releases iodine molecules inside the lithium secondary battery, and converts lithium atoms in an unstable state in the lithium secondary battery into a lithium compound or lithium ions in a stable state before the lithium secondary battery heats up to a self-harming elevated temperature, so as to deactivate the negative electrode active material of the lithium secondary battery, and avoid thermal runaway of the lithium secondary battery.
Resumen de: WO2024169444A1
The present disclosure relates to the technical field of batteries, in particular to an electrolyte and a battery comprising the electrolyte. The electrolyte comprises a first additive having a structure as represented by formula (I) and a second additive having a structure as represented by formula (II), wherein R1, R2, and R3 are each independently selected from formula (a), formula (b), formula (c), and formula (d); R4, R5, and R6 are each independently selected from C1-C10 alkyl, C2-C10 alkenyl, and C1-C10 alkoxy; X is selected from hydrogen, halogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C1-C4 cyano; and n is 1, 2, 3, or 4. A SEI film formed by the electrolyte of the present disclosure can improve the stability and the ionic conductivity of an interface film, and has higher safety. The battery of the present disclosure has higher safety performance and more stable long cycle performance.
Resumen de: WO2024169370A1
A current collector having a coating, a secondary battery, a battery module, a battery pack, and an electric device. The coating at least comprises a surface modification layer, the coating is formed on at least one side of the current collector, and the thickness of the surface modification layer is 100 nm-10 μm. The coating formed on at least one side of the current collector can effectively block direct contact between a negative electrode metal and an electrolyte component, so that a side reaction between the negative electrode metal and the electrolyte is reduced, and gas generated in the cycle process of the battery is greatly reduced, thereby improving the cycle performance and safety of the battery.
Resumen de: WO2024169543A1
A battery discharge circuit (100), a circuit control method, and a battery discharge apparatus. The battery discharge circuit comprises a resistor configuration branch (10), a current sampling branch (20), a switch branch (30), a signal amplification branch (40) and a controller (50), wherein the resistor configuration branch is connected between a battery (200) and the switch branch, is connected to the controller, and is configured to be a first preset resistor; the current sampling branch is connected between the battery and the switch branch, and outputs a sampling signal on the basis of a discharge current of the battery; the controller is connected to the signal amplification branch, and outputs a voltage signal corresponding to a target discharge current of the battery; the signal amplification branch is connected between the switch branch and the current sampling branch, and outputs an adjustment signal on the basis of the sampling signal and the voltage signal; the switch branch adjusts the turning-on degree of the switch branch on the basis of the adjustment signal; and the battery is discharged by means of the first preset resistor and the switch branch. In this way, the discharge cost of a battery can be reduced.
Resumen de: WO2024169379A1
The present application provides a positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery and an electric device. The positive electrode active material comprises positive electrode active material particles and a conductive coating layer; the positive electrode active material particles comprise a lithium-containing transition metal oxide and a surface doped layer containing an M1 element; the conductive coating layer covers at least a part of the surface of the positive electrode active material particles; the conductive coating layer comprises a conductive polymer containing the M1 element; and the M1 element comprises one or more of sulfur and selenium. The positive electrode active material can improve the cycle performance, rate capability and high-temperature storage performance of a battery.
Resumen de: WO2024169602A1
Provided in the present application is an energy storage system. The energy storage system may comprise a cabinet and a liquid cooling unit, wherein the cabinet may comprise a cabinet door and a cabinet body which are hinged to each other, the cabinet door can be opened and closed relative to the cabinet body, the cabinet body may comprise a battery compartment and a power compartment, battery modules are provided in the battery compartment, and a power module is provided in the power compartment; and the liquid cooling unit is arranged on the side of the cabinet door that faces the cabinet body, the liquid cooling unit is connected to the battery modules by means of a first liquid output pipeline and a first liquid return pipeline, and the liquid cooling unit is connected to the power module by means of a second liquid output pipeline and a second liquid return pipeline. In the energy storage system provided in the present application, the battery modules, the power module and the liquid cooling unit are all arranged in the cabinet, such that the integration level of the energy storage system can be effectively improved, and the installation and maintenance efficiency of the energy storage system can thus be improved.
Resumen de: WO2024169297A1
The present invention relates to the field of notebook housing stamping, and particularly discloses an engagement assembly and a notebook housing stamping jig. A connecting column is arranged on a top face of a stamping head mechanism, and a sliding slot is provided in a side face of the connecting column; a driving shaft is arranged at a top end of the connecting column, and an assembly groove is provided in a bottom end of the driving shaft; and an engagement block is arranged in the sliding slot, and a sliding block is arranged on a side face of the engagement block. The engagement assembly has the beneficial effects that the corresponding stamping head mechanism is selected depending on the type of stamping to be performed, the engagement block is aligned to an insertion groove and is inserted, when the engagement block is inserted into a limiting groove through the insertion groove, the bottom end of the driving shaft presses against a surface of the engagement block, the connecting column is then rotated by 90 degrees by means of the stamping head mechanism, under rebound action of a compression spring, the engagement block is engaged into an engagement groove, and in this case, the stamping head mechanism is engaged to the bottom end of the driving shaft by means of the connecting column, thereby solving the problems that due to the use of a magnetic fixing column in a stamping head mechanism, scraps generated by stamping easily adhere to the surface of a stamping head
Nº publicación: WO2024169226A1 22/08/2024
Solicitante:
ANHUI BOSHI HIGH TECH NEW MAT CO LTD [CN]
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Resumen de: WO2024169226A1
Provided in the present invention is a lithium nickel manganate positive electrode material. The lithium nickel manganate positive electrode material has a spherical particle morphology; and the spherical particle morphology is a spherical secondary particle morphology formed by stacking primary particles having a truncated octahedron morphology. In the spherical high-voltage lithium nickel manganate material, which is composed of truncated octahedron primary particles, provided in the present invention, the primary particles have a specific shape and arrangement mode, and the spherical lithium nickel manganate material, which is composed of the truncated octahedrons in a close-packing manner, can reduce the porosity and specific surface area of the material, such that the compaction performance, rate capability and cycling performance of the material are improved, and in particular, the high-temperature cycling performance is excellent. In addition, crystal faces of the surface (111) of the spherical secondary particles of the present invention are tightly arranged, such that gaps among the primary particles are further reduced, the specific surface area of the material is reduced, the maximum accumulation of the surfaces and interiors of the spherical secondary particles is ensured, and the compaction density of the material can be improved.
BOPI
Sede Electrónica
