Resumen de: US2024307726A1
The present invention discloses a cooling type dry powder fire extinguishing agent and a preparation method and application thereof, which belongs to the technical field of fire control. Through a static mixing technology, an aqueous solution and a solid hydrophobic material are dispersed and mixed efficiently to form a cooling type dry powder fire extinguishing agent. The fire extinguishing agent is a micron solid particle of the aqueous solution wrapped by the hydrophobic material microscopically, and is in a dry powder state macroscopically, which can significantly reduce the electrical conductivity of the fire extinguishing agent. Meanwhile, a field rapid preparation method is adopted, which can realize real-time preparation. The preparation method is simple and efficient. The technology can be used for fighting a battery fire, has significant cooling and anti-reignition effects and can avoid the problem of electrical conduction of a traditional water-based fire extinguishing agent.
Resumen de: US2024307722A1
A composite adhesive fire barrier comprises a fire barrier material having first and second opposed major surfaces and a pressure-sensitive adhesive layer disposed on the first major surface of the fire barrier material. The fire barrier material comprises inorganic fibers and has an inorganic component content of at least 50 percent by weight. The pressure-sensitive adhesive layer comprises a crosslinked mixture of a silicone having a kinematic viscosity of at least 30,000 centistokes and an MQ silicate tackifying resin disposed on the fire barrier material. The silicone and the MQ silicate tackifying resin are present in a respective weight ratio of 4:1 to 20:1. A release liner comprising a fluorinated compound is releasably adhered to the pressure-sensitive adhesive layer. Methods of making and using the composite adhesive fire barrier are also disclosed.
Resumen de: US2024310454A1
A method for non-destructively detecting failure of a cell is disclosed. The method may include preparing a cell containing a carbon-based material as an anode active material, charging the cell, x-ray diffraction (XRD) scanning the charged cell inward from an end of an anode, and determining whether or not an LiC6 peak of the anode is observed in a region after a signal of an anode current collector appears in XRD scans.
Resumen de: US2024310456A1
A method for determining a state of a fuse in a battery pack is provided. The battery pack comprises a first string comprising a first string fuse; at least one parallel arrangement comprising a battery cell and a resistor; and a first ammeter. The parallel arrangement is configured to be changeable between a connected state wherein the resistor is connected in parallel to the battery cell and a disconnected state wherein the resistor is disconnected from the battery cell. A second string comprising at least one battery cell is connected in parallel to the first string. The method comprises changing the at least one parallel arrangement of the first string to the connected state, and measuring a current passing through the first string. In an event that the change in the first current does not exceed a threshold, the first string fuse is in a blown state.
Resumen de: US2024310448A1
Discussed is a battery management system, including at least one processor configured to obtain battery information including at least one of a temperature, a current or a voltage of a battery, generate a first diagnosis result corresponding to a current state of the battery based on the battery information, and perform a control measure based on the first diagnosis result and a diagnosis result generated based on the battery information by an external device.
Resumen de: US2024310447A1
The invention relates to a method for detecting the state of charge of an electrochemical element, the method comprising the steps of:obtaining the voltage, current, temperature and capacity of the electrochemical element,computing the state of charge of the electrochemical element using two techniques:a first technique giving the value of the first model applied to the aforementioned values and corrected by the correction function, the first model being a neural network, the correction function giving for each value of the state of charge the statistical estimation error of the first model; anda coulometric second technique,determining the most reliable technique depending on a reliability criterion of the corrected first model, andthe value computed using the determined technique being the estimated value of the state of charge.
Resumen de: US2024310446A1
Provided herein are systems and methods for rapid and real-time assessment of active measurements and for active balancing of a rechargeable electrochemical storage system. Certain systems and methods provided herein are set forth for individually electrically addressing certain electrochemical elements amongst a collection of batteries. Certain systems and methods provided herein are set forth for individually electrically addressing certain electrochemical elements amongst a collection of electrochemical elements. Certain systems and methods provided herein are set forth for analyzing one or more battery cells amongst a collection of battery cells and/or battery modules and/or battery packs. Certain systems and methods provided herein are set forth for analyzing one or more electrochemical elements amongst a collection of electrochemical elements.
Resumen de: US2024310445A1
A Thevenin equivalent model of a lithium-ion battery cell provides the basis for a simplified cell diagnostic relying on cell current and cell terminal voltage measurements.
Resumen de: US2024310450A1
An estimation device includes: an acquisition unit configured to acquire time-series data of a current and a voltage of an energy storage device; an electricity amount calculation unit configured to calculate time-series data of an electricity amount based on the time-series data of the current acquired by the acquisition unit; a generation unit configured to generate a partial charge-discharge profile of the energy storage device based on the time-series data of the acquired voltage and the time-series data of the calculated electricity amount; and an estimation unit configured to estimate an entire discharge characteristic of the energy storage device based on the partial charge-discharge profile.
Resumen de: US2024310307A1
An apparatus is configured to monitor a plurality of layers of a battery layer stack during manufacturing. The apparatus includes at least one X-ray source configured to generate X-rays with X-ray energies that exhibit contrast of transmission through the plurality of layers of the battery layer stack. The at least one X-ray source is configured to face a first side of the battery layer stack. The apparatus further includes at least one sensor configured to detect the X-rays transmitted through the plurality of layers. The at least one sensor is configured to face a second side of the battery layer stack.
Resumen de: US2024310313A1
A device for inspecting a welded state of a plurality of welded portions coupling a non-coating portion of an electrode to an electrode tab includes a resistance measurer having a plurality of resistance measurement probes which respectively measure resistance values of the plurality of welded portions; and a resistance inspector which compares each of the resistance values of the plurality of welded portions, with a critical resistance value. When the resistance value of at least one welded portion among the plurality of welded portions exceeds the critical resistance value, the at least one welded portion is determined as having a weak welding. The plurality of resistance measurement probes respectively measure the resistance values of the plurality of welded portions while being respectively in contact with a non-welding surface disposed between the plurality of welded portions and non-welding surfaces outside outermost welded portions of the plurality of welded portions.
Resumen de: US2024309531A1
Disclosed are solutions for the recovery of elemental metals at industrial scales without smelting including, for example, the recovery of near-pure lead from recycled LABs via specialized electrolytic processing. Further disclosed are new processes, innovative electrolyzer designs, and/or novel utilization of supplemental chemicals necessary for successful electrolysis of pure metal from impure forms (e.g., pure lead from lead oxides), and especially applicable for solid-state electrolysis of mixtures comprising lead paste, electrolyte, and supplemental chemicals. With particular regard to recovering near-pure lead during LAB recycling, solid-state electrolysis of mixtures comprising impure lead (e.g., lead paste) is made possible and scalable to industrial levels via utilization of a vertically-arranged series of two-compartment horizontal cathodes or two-compartment horizontal bipolar cathodes in an electrolyzer assembly to simultaneously produce, for example, elemental lead (Pb), sodium hydroxide (NaOH), and chlorine gas (Cl2).
Resumen de: US2024309530A1
Methods and devices for enriching a substrate with an alkali metal, in particular lithium, a method for using an enriched substrate as an electrode in a battery, and an electrolyte, are provided. The electrolyte is guided in a circuit through an electrolysis chamber having an anode and a cathode and through a reservoir vessel, for enrichment purposes. Alkali metal disposed in the reservoir vessel is oxidized and dissolved in the electrolyte. The substrate used as a cathode in the electrolysis chamber is enriched with the dissolved alkali metal.
Resumen de: US2024310207A1
An optical fiber-based sensing membrane includes at least one optical fiber and a substrate. The at least one optical fiber is integrated in the substrate. The optical fiber-based sensing membrane includes, based on a specified geometric pattern of the at least one optical fiber, an optical fiber-based sensing membrane layout. The substrate includes a thickness and a material property that are specified to ascertain, via the at least one optical fiber and based on the optical fiber-based sensing membrane layout, a thermal property or a mechanical property associated with a device, or a radiation level associated with a device environment.
Resumen de: US2024309258A1
Crosslinkable heat-conducting silicone compositions (Y), methods for manufacturing and using the same. Where the compositions (Y) include 5-50% by volume of a crosslinkable silicone composition (S) and 50-95% by volume of at least one thermally conductive filler (Z) having a thermal conductivity of at least 5 W/mK. The compositions (Y) have a thermal conductivity of at least 0.6 W/mK and at least 20% by volume of metallic silicon particles present as thermally conductive fillers (Z) fulfil the following features: (a) the fillers (Z) have a median diameter x50 in the range of 30-150 μm, (b) the fillers (Z) are predominately rounded, and have a width/length ratio (aspect ratio w/l) that is at least 0.76, (c) the fillers (Z) have a distribution range SPAN ((x90−x10)/x50) that is at least 0.40, and (d) the fillers (Z) contain at most 1.5% by weight of silicon particles that are smaller than 2 μm.
Resumen de: US2024309259A1
The present invention concerns concentrated and ready-to use coolant compositions comprising a base fluid and N-vinylpyrrolidone polymer wherein the compositions have an electrical conductivity at 25° C. of less than 100 μS/cm, wherein the base fluid consists of water and alcohol, wherein the alcohol is present in an amount in the range of 10-99.5 wt. % by weight of the base fluid, wherein the composition comprises more than 75 wt. % base fluid by total weight of the composition, and wherein the amount of inorganic compounds is less than 100 ppm by total weight of the composition.
Resumen de: US2024309249A1
The invention relates to the use of a curable adhesive comprising (i) a (meth)acrylic acid, (ii) a C1-6-alkyl (meth)acry late. (iii) optionally, a hydroxy-C1-6-alkyl (meth)acrylate, (iv) optionally, a cycloalkyl (meth)acrylate; (v) optionally, one or more additional ethylenically unsaturated monomers, and (vi) a polymerization initiator: for adhesively bonding a first substrate and a second substrate, preferably forming a battery cooling plate or a cooling plate for an electronic component, via the cured adhesive thereby obtaining between the first substrate and the second substrate a conduit for a liquid coolant to flow through and to come into direct contact with the cured adhesive.
Resumen de: US2024310208A1
An optical fiber-based sensing membrane includes at least one optical fiber, and a substrate. The at least one optical fiber is integrated in the substrate. The substrate includes a thickness and a material property that are specified to ascertain, via the at least one optical fiber and for a device that is contiguously engaged with a surface of the substrate, includes the substrate embedded in the device, or includes the surface of the substrate at a predetermined distance from the device, a thermal property or a mechanical property associated with the device, or a radiation level associated with a device environment.
Resumen de: US2024309161A1
A battery module comprising an electric cell and a potting compound associated with the electric cell. The potting compound is formed of a flame retardant component; a first component having an isocyanate reactive compound and water; and a second component having an isocyanate compound. The potting compound is a foam.
Resumen de: US2024309959A1
A pressure relief mechanism includes: a pedestal, a cover assembly, and a position limiter. An exhaust port is provided on the pedestal. The cover assembly is configured to close or open the exhaust port. The position limiter is snap-fastened to the cover assembly. The position limiter includes a first elastomer and a first limiting portion. The first limiting portion is configured to: when the cover assembly closes the exhaust port, restrict the position limiter from moving relative to the pedestal; and when a pressure in the box increases, make the position limiter move along an opening direction of the cover assembly to free the first limiting portion from constraint of the pedestal and enable the position limiter to rotate relative to the cover assembly under resilience of the first elastomer.
Resumen de: US2024309226A1
A coating composition for a secondary battery includes a flame retardant, a dispersant, and an aqueous solvent. The flame retardant includes at least one of an inorganic flame retardant containing a hydroxyl group, a phosphorus-based flame retardant, a halogen-based flame retardant, and a melamine-based flame retardant.
Resumen de: US2024309532A1
The presently disclosed concepts relate to improved techniques for critical mineral extraction, purification, precipitation, ion exchange, and metal production using a solid electrolyte membrane. By using a solid electrolyte embedded in a matrix, alkali metal (such as lithium) can be more effectively separated from feed solutions. Additionally, energy used to initially extract critical minerals from a feed solution may be stored as electrochemical energy, which in turn, may be discharged when critical minerals are depleted from the electrode. This discharged energy may therefore be reclaimed and reused to extract additional critical minerals.
Resumen de: US2024309489A1
Systems and methods for recovering lithium (Li) from a lithium-ion battery waste stream including lithium sulfate (Li2SO4), sodium sulfate (Na2SO4), and water (H2O) are provided. The systems may include an evaporator unit with an optional heating system and a crystallizer unit downstream or upstream of the evaporator unit for cooling and solidifying sodium sulfate (Na2SO4). A lithium recovery unit is disposed downstream of the crystallizer unit or the evaporator unit that generates lithium carbonate (Li2CO3) product. Methods include evaporating a portion of water from the waste stream to generate water vapor and an effluent stream, which is then cooled to solidify sodium sulfate (Na2SO4) in a crystallizer vessel. The solid sodium sulfate (Na2SO4) is removed and the effluent stream is heated, followed by introducing sodium carbonate (Na2CO3) to produce lithium carbonate (Li2CO3) product, which is then recovered.
Resumen de: US2024312739A1
A layer-structured, open-design keyboard includes a main body and a tray attached to the main body from below. The main body has key mechanisms and keycaps mounted on tops of the key mechanisms. The main body includes an upper-layer plate, a middle-layer plate, a circuit board, and a lower-layer plate arranged from a top to a bottom of the main body successively in a spaced manner, so as to define three clearance spaces that communicate the interior of the main body with the exterior.
Nº publicación: US2024309503A1 19/09/2024
Solicitante:
LEE WOONKYUNG [KR]
LEE Woonkyung
Resumen de: US2024309503A1
An electronic device based on multilayer thin films includes: a thin film structure in the shape of a hollow microchannel plate, wherein the internal space of the microchannel plate, with multiple parallel microchannels arranged perpendicularly on the substrate's surface, is empty; and one or more layers of thin film pairs formed respectively on the inner and outer surfaces of the thin film structure.