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1111
resultados
Última actualización
02/09/2024 [07:41:00]
Resultados 350 a 375 de 1111
Resumen de: WO2024174452A1
A solid electrolyte material, a preparation method, an electrode comprising the solid electrolyte material, and a lithium ion battery. The solid electrolyte material comprises a halide solid electrolyte, and the chemical general formula of the halide solid electrolyte is: Li2+a+2bZr1-a-bMaNbX6, wherein the element M is selected from one or two of Eu and Gd; the value range of 2+a+2b is 2.15-2.65; the element N is different from M, and the ionic radius r(N) of the element N is 60 pm < r(N) < 95 pm; the value range of a+b is 0.1-0.5, and the value range of a/b is 1-6; X is at least one of F, Cl, Br, and I. Compared with a standard structure of Li2ZrCl6, Zr is used as a main element, and elements M and N of proper types are doped; and on the premise of low cost, the ionic conductivity of the halide solid electrolyte is improved by increasing the proportion of a lithium element and on the basis of the synergistic effect of the element M and the element N.
Resumen de: WO2024174450A1
Disclosed in the present invention is a composite metal foil, comprising a support body and a conductive layer, wherein the conductive layer is arranged on at least one face of the support body; the elongation of the composite metal foil is greater than or equal to 2%; and the peeling force between the conductive layer and the support body is greater than or equal to 0.3 N/cm. Further disclosed in the present invention are an electrode material of a battery using the composite metal foil, and a battery. By using the technical means of the present invention, the structure of the metal foil is improved, such that the problem of the peeling force and the elongation of the composite metal foil being relatively low can be effectively solved, thereby effectively improving the quality of the metal foil, and improving the performance effect of the battery using the metal foil.
Resumen de: WO2024174294A1
Disclosed are a preparation method for a silicon-carbon composite material and a silicon-carbon composite material. The method comprises preparing a porous carbon-doped porous copper complex, then depositing nano silicon on the porous carbon-doped porous copper complex by adopting a silane cracking method, and obtaining a silicon-carbon composite material. The steps for preparing a porous carbon-doped porous copper complex at least comprise: S11) uniformly mixing carbon disulfide, activated carbon, and an adhesive, and pressing the mixture into a copper foam to form a sheet-shaped structure; S12) transferring the sheet-shaped structure obtained in step S11) into a carbonization device, and heating and carbonizing in an inert atmosphere to obtain a porous carbon-doped porous copper complex. The present invention significantly addresses the problem where, when using only porous carbon as a substrate for depositing nano silicon, the nano silicon cannot be completely deposited within the porous carbon, leading to exposed nano silicon, which affects the expansion and high-temperature storage performance thereof. Meanwhile, the present invention also overcomes the notable deficiencies of using only porous metal for nano silicon deposition, such as poor consistency and low efficiency.
Resumen de: WO2024177130A1
Provided are a secondary-battery-unit charging state estimation device, a secondary-battery-unit charging state estimation method, and a secondary-battery-unit charging state estimation program with which it is possible to estimate, in real-time with good followability, the state of charge (SOC) of a secondary battery on the basis of parameters at the time of measurements. The present invention provides a secondary-battery-unit charging state estimation device that estimates, by employing formula 1 or 2, the state of charge (SOC) or the state of power (SOP) of a secondary battery unit that has at least one battery cell, wherein the secondary-battery-unit charging state estimation device is equipped with a corrected full-charge-capacity calculation means for calculating a corrected full charge capacity (FCCadj) of the secondary battery unit, and the corrected full-charge-capacity calculation means calculates a corrected full charge capacity (FCCadj) by employing a Weibull function that employs, as the variables, indices that are based on physical quantities at the time of measurements, obtained from the secondary battery unit.
Resumen de: WO2024177055A1
The present invention recovers electric power from a noise component that is generated by electrostatic induction. Disclosed is a power storage device which comprises: a first metal element that is electrically floated from the ground; a second metal element that is capacitively coupled to the first metal element and generates a charge imbalance in the first metal element; and a power storage unit which is connected to the first metal element and the second metal element so as to store the potential difference generated between the first metal element and the second metal element.
Resumen de: WO2024177682A1
Systems and methods are provided for charging a chargeable electronic device with a USB interface. An example method includes comparing a charging voltage level of a charging device to a charge voltage rage. The method may further include charging a battery with a charging current based on the charging voltage level being within the charging voltage range. The method may further include comparing the charging current to a charge current range, and increasing the charging current based on a determination that it is within the charge current range. The method may involve again comparing the charging voltage level to the charge voltage range and the charging current to the charge current range, and continuing to charge the chargeable electronic device with the charging current based on a determination that the charging voltage level is within the charge voltage range and the charging current is within the charge current range.
Resumen de: EP4421945A1
An electrochemical apparatus management method, the method includes: performing a first charge-discharge cycle on an electrochemical apparatus at a charge current; performing an intermittent charge operation on the electrochemical apparatus at a detection current, obtaining data related to the electrochemical apparatus in the intermittent charge operation, and determining a lithium precipitation SOC of the electrochemical apparatus based on the data related to the electrochemical apparatus; and in response to the lithium precipitation SOC of the electrochemical apparatus being higher than a first SOC threshold, performing a second charge-discharge cycle on the electrochemical apparatus at the charge current, or in response to the lithium precipitation SOC of the electrochemical apparatus being lower than or equal to the first SOC threshold, controlling the electrochemical apparatus to perform a risk control operation..
Resumen de: EP4421904A1
This application relates to a positive electrode and an electrochemical apparatus and electronic apparatus using the same. Specifically, this application provides a positive electrode including a first positive electrode active material and a second positive electrode active material, where the first positive electrode active material is sulfurized polyacrylonitrile with a sulfur percentage of 45wt% to 60wt%, and the second positive electrode active material is sulfurized polyacrylonitrile with a sulfur percentage of 30wt% to 40wt%. The positive electrode of this application helps to increase energy density and energy density retention rate of the electrochemical apparatus..
Resumen de: EP4421932A1
This application provides a positive electrode plate, an electrochemical device, and an electronic device. The positive electrode plate includes a positive electrode film layer. The positive electrode film layer includes a first positive active material represented by Chemical Formula 1 and a second positive active material represented by Chemical Formula 2. Subscripts in the chemical formulas are defined herein. This application can improve the processing performance of the positive electrode plate, compensate for irreversible loss of active lithium in a first charge-discharge cycle, and endow the electrochemical device with a high energy density, a long cycle life, and good C-rate performance concurrently. Li1+xCoyM11-yO2-zAz Chemical Formula 1 Li2+rNipCuqTiuM2vO2-sBs Chemical Formula 2
Resumen de: WO2023070007A1
Disclosed is a z-fold prismatic battery interleave stacker machine. In some embodiments, the machine includes a first vertical elevator stack for providing anode electrodes, a second vertical elevator stack for providing cathode electrodes, a centrally located elevator stack configured to lower a partly assembled z-fold stack during assembly, a first set of tandem end effectors for sequentially handling anode electrodes, and a second set of tandem end effectors for sequentially handling cathode electrodes.
Resumen de: EP4421030A1
The present invention relates to an apparatus for producing carbon nanotubes including a plasma apparatus and a CVD reactor which are connected in series, and a nanoparticle catalyst in an aerosol state prepared in the plasma apparatus is transferred into the CVD reactor to synthesize carbon nanotubes, thereby continuously synthesizing the carbon nanotubes having excellent physical properties.
Resumen de: CA3236050A1
A molecular design principle utilizes a steric hindrance effect to tune the solvation structures of Li+ ions. By substituting the methoxy groups on DME with larger-sized ethoxy groups, the resulting 1,2-diethoxyethane (DEE) has weaker solvation ability and consequently more anion-rich inner solvation shells, both of which enhance interfacial stability at cathode and anode. According to certain additional aspects, the present embodiments relate to a family of fluorinated- 1,2-diethyoxyethane (fluorinated-DEE) molecules that are readily synthesized in large scales to use as the electrolyte solvents. Selected positions on 1,2-diethyoxyethane (DEE, distinct from the diethyl ether are functionalized with various numbers of fluorine atoms through iterative tuning, to reach a balance between CE, oxidative stability, and ionic conduction. Paired with 1.2 M lithium bis(fluorosulfonyl)imide (LiFSI), these fluorinated-DEE-based, single-salt single-solvent electrolytes are thoroughly characterized. In addition, a family of fluorinated ethyl methyl carbonates are designed and synthesized. Different numbers of F atoms are finely tuned to yield monofluoroethyl methyl carbonate (F1EMC), difluoroethyl methyl carbonate (F2EMC) and trifluoroethyl methyl carbonate (F3EMC). The cycling behavior of several types of lithium-ion pouch cells were systematically investigated to understand the impact of fluorination degree.
Resumen de: WO2023069415A1
Battery systems are provided that include polymer cells/pouch cells. The polymer cells/pouch cells are structured such that, in response to an increase in pressure within the polymer/pouch cell, e.g., a pressure increase beyond a threshold level, the polymer/pouch releases gasses in a directionally controlled manner so as to facilitate withdrawal of the gasses from the battery enclosure through a vent structure that is positioned for ease of communication with the released gasses. The battery enclosure is generally sealed, e.g., hermetically sealed, and the polymer cells/pouch cells may be spaced from each other, e.g., by a support structure that may include interleaved barrier structures.
Resumen de: EP4421029A1
The present invention relates to a method for synthesizing carbon nanotubes using a nanoparticle catalyst prepared by vaporizing a catalyst raw material using plasma and then condensing the vaporized catalyst raw material, and use of the production method of the present invention can make the synthesized carbon nanotubes have high crystallinity, and facilitate the mass synthesis.
Resumen de: US2024006697A1
An energy storage/battery system is disclosed. The system can include a multi-voltage configurable module (MVCM) and a multi-voltage configurable backplane (MVCB) that form the system. The system can be dynamically controlled to bring MVCMs on or offline to deliver power and capacity to a device.
Resumen de: WO2023068642A1
An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a heater configured to heat an aerosol-generating substance, a battery configured to supply power to the heater, a protection circuit module electrically connected to the battery, and a controller. The controller determines a type of battery based on a signal corresponding to the battery transmitted from the protection circuit module, and sets any one of a plurality of modes to an operation mode based on the determined type of battery.
Resumen de: EP4421971A1
Embodiments of this application provide a battery electrode plate, an electrode assembly, a battery cell, a battery, and an electric device, which can improve battery safety. Specifically, the battery electrode plate according to an embodiment of this application includes a current collector, an active substance layer, and a conductive structure, where the current collector includes a main body portion and a tab portion disposed in a first direction, where the main body portion is covered with the active substance layer and the tab portion is not covered with the active substance layer; a first region of the conductive structure is welded to a portion of the tab portion to form a welding mark zone; and the welding mark zone is at least partially covered with a protective layer.
Resumen de: EP4421944A2
An alert system for an electronic housing, including: a gas property sensor, wherein a processor is configured to receive gas property data from the gas property sensor, and configured to determine a property of a battery included in the electronic housing; a degassing unit for attaching to the electronic housing and configured to enable passage of gases and to prevent passage of liquids and solids, the gas property sensor being attached to the degassing unit at an inner side. A degassing unit comprising a base comprising an attachment means for fluid-tightly attaching to a venting opening of the electronic housing and an opening covered by a semipermeable membrane thereby forming a gas passage; a sensor module including a gas property sensor, the sensor module attachable to the base on an inner side of the base, the sensor module extending away from the semipermeable membrane towards a direction substantially perpendicular to the semipermeable membrane.
Resumen de: EP4420795A1
A coating device includes at least one applicator configured to coat a glue onto two opposite sides of an electrode sheet; at least one roller assembly configured to guide the electrode sheet past the at least one applicator; and at least one support bar arranged under the at least one applicator.
Resumen de: EP4421912A1
A nonaqueous electrolyte solution secondary battery (100) disclosed herein includes a wound electrode body (20) including a positive electrode (22) with a band shape and a negative electrode (24) with a band shape. The negative electrode (24) includes a negative electrode active material layer (24a). The negative electrode active material layer (24a) includes a first high-resistance region (A1) extending from one end part toward a central part in a winding axis direction (Y) and having a resistance value that is 1.5 times or more higher than that in a periphery. When a length of the negative electrode active material layer (24a) is La and a length of the first high-resistance region (A1) is L1 in the winding axis direction (Y), a ratio (L1/La) of the length L1 to the length La is 0.35 or less.
Resumen de: EP4421032A1
The present specification relates to a carbon nanotube dispersion liquid, a method for preparing same, an electrode slurry composition comprising same, an electrode comprising same, and a lithium secondary battery comprising same, the carbon nanotube dispersion liquid comprising carbon nanotubes; a first dispersant having an amide group; and a second dispersant having an aromatic ring, wherein the viscosity at 25°C and a shear rate of 15 sec<sup>-1</sup> is 2,000 cPs or less.
Resumen de: EP4421031A1
The present specification relates to a carbon nanotube dispersion liquid, a method for preparing same, an electrode slurry composition comprising same, an electrode comprising same, and a lithium secondary battery comprising same, the carbon nanotube dispersion liquid comprising: carbon nanotubes; a first dispersant having an amide group; and an acryl-based second dispersant having one or more functional groups selected from the group consisting of a hydroxyl group and a carboxyl group, wherein the viscosity at 25 °C and a shear rate of 15 sec<sup>-1</sup> is 3,000 cPs or less.
Resumen de: CN118102923A
An aerosol-generating device and a method of operating the same are disclosed. An aerosol-generating device of the present disclosure includes a heater configured to heat an aerosol-generating substance, a battery configured to supply power to the heater, a temperature sensor disposed adjacent to the battery, and a controller. When charging of the battery is stopped, the controller monitors a value detected by the temperature sensor. The controller determines the value detected by the temperature sensor as a temperature of the battery when a result of monitoring the value detected by the temperature sensor satisfies a predetermined condition related to the battery. When a result of monitoring the value detected by the temperature sensor does not satisfy a predetermined condition, the controller determines a result of compensation of the value detected by the temperature sensor as a temperature of the battery.
Resumen de: WO2024046721A1
The invention relates to a method for determining thermal runaway of an electrical energy storage unit (12) of an operated motor vehicle, comprising the following steps: - continuously monitoring the electrical energy storage unit (12) by way of at least one diagnostic method (14) for diagnosing an electrical energy storage unit (12) on the basis of a diagnostic signal (16); - in the event of detection of an anomaly (44) in the diagnostic signal (16), determining a frequency (18) of the anomaly (44); - in the event of detection of an anomaly (44) in the diagnostic signal (16), determining a dynamic range (22) of the anomaly (44); - continuously monitoring a communication line (24) by way of a limited anomaly counter (26); - in the event of detection of an anomaly (44) within the communication line (24), comparing the limited anomaly counter (26) with an unlimited anomaly counter (28) and generating a difference signal (30) on the basis thereof; and - determining thermal runaway (44) on the basis of the determined frequency (18) and the determined dynamic range (22) and the difference signal (30). The invention furthermore relates to a computer program product and to an electronic computing device (10).
Nº publicación: EP4422020A1 28/08/2024
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Resumen de: EP4422020A1
A battery management method, a battery management apparatus, and a battery system. The battery management method is applied to a battery management apparatus (20), so as to manage a battery apparatus (10). The battery management apparatus (20) comprises a connection state conversion apparatus (200), wherein a contact of the connection state conversion apparatus (200) is connected to two battery packs of the battery apparatus (10). The method comprises: acquiring a working environment voltage of a battery apparatus (10); and controlling, according to the working environment voltage, a connection state conversion apparatus (200) to switch from a first connection state to a second connection state. The technical problem of a battery apparatus (10) being incompatible with different voltage platforms is expected to be solved.
BOPI
Sede Electrónica
