Resumen de: WO2024171560A1
A battery module (1) comprises: a battery cell (100); a fuse (233) electrically connected to the battery cell (100) and extending in a prescribed direction; and a coating heat-resistant body (311) and a surrounding heat-resistant body (211) at least partially surrounding the fuse (233) around the prescribed direction.
Resumen de: WO2024171550A1
This heat management system comprises a heat pump circuit (2) which includes: a first circulation path (11) through which a refrigerant circulates; a compressor (12) which is provided in the first circulation path and compresses the refrigerant; an expansion valve (13) which is provided in the first circulation path and expands the refrigerant; a first condenser (15) which is provided between the compressor and the expansion valve in the first circulation path and dissipates heat to indoor air; and a first evaporator (16) which is disposed in the first circulation path between the compressor and the expansion valve and at a position on the side opposite to the position where the first condenser is disposed, and which absorbs heat from atmospheric air. The first circulation path (11) is provided with a first bypass path (21) which bypasses the first evaporator (16), and the first bypass path (21) is provided with a first heater (22) which heats the refrigerant flowing through the first bypass path.
Resumen de: WO2024171141A1
The present disclosure relates to an intumescent coating and a coated article, wherein the intumescent coating comprises an inorganic binder and at least one inorganic filler. In certain preferred embodiments, the inorganic binder is selected from potassium silicate, sodium silicate, or a combination thereof, and the at least one inorganic filler is selected from clay (e.g., kaolin clay), ceramic fibers, vermiculite, hollow ceramic microspheres, perlite, zeolite, mica, hexagonal boron nitride, silicon nitride and combinations thereof. The coated article comprises a substrate having a first major surface and a second major surface, and an intumescent coating disposed on the first major surface.
Resumen de: WO2024170994A1
Provided is a secondary battery with a large charging/discharging capacity and high safety and reliability. Also, provided are: a positive electrode active material in which reduction in discharging capacity during a charging/discharging cycle is suppressed; and a secondary battery using the positive electrode active material. This positive electrode active material can be used for a lithium ion secondary battery. The positive electrode active material has lithium cobaltate having an additive element, and is used for producing a battery that has a counter electrode lithium and a positive electrode containing the positive electrode active material. When a charging/discharging cycle test is conducted, the maximum discharging capacity is exhibited at a time between the sixth cycle and the 40th cycle. The charging/discharging cycle test involves: charging in which constant current charging is performed at 0.5 C until 4.7 V is achieved, and then constant voltage charging is performed for the shorter one of 3 hours or the time until the current value reaches 0.05 C; and discharging in which constant current discharging is performed at 0.5 C for the shorter one of 3 hours or the time until the cell voltage reaches 2.5 V, where 1 C is 200 mA/g, and the temperature of a measurement environment is 25°C.
Resumen de: US2024280643A1
The present invention discloses a method for characterizing the State of Charge (SOC) of lithium-ion batteries using an ultrasonic reflection coefficient, which employs a water immersion ultrasonic detection method for measuring the reflection coefficient angular spectrum of lithium-ion batteries. This invention pertains to the field of non-destructive testing technology. A pouch-type lithium-ion battery can be regarded as a laminated structure composed of multiple materials, and when the State of Charge (SOC) of the lithium-ion battery varies, its reflection coefficient changes accordingly. The invention acquires the reflection coefficient angular spectrum of lithium-ion batteries at different SOCs through ultrasonic water immersion detection, establishes a mapping relationship between the angular spectrum and the SOC of the lithium-ion battery, and uses the distance between the two peak values of the angular spectrum to characterize the SOC of the lithium-ion battery. The invention enables non-destructive characterization of the SOC of lithium-ion batteries and allows for localized SOC measurement of the batteries.
Resumen de: US2024279074A1
A negative electrode active material, a negative electrode slurry including the same, a negative electrode including the slurry, a secondary battery including the negative electrode, and a method of manufacturing a negative electrode active material are disclosed. The negative electrode active material includes silicon-containing particles comprising silicon and a Li compound; and a carbon layer on at least a portion of a surface of the silicon-containing particles. Upon X-ray diffraction analysis, a ratio (p2/p1) of a peak intensity (p2) appearing at 18.8° to 19.0° to a peak intensity (p1) appearing at 24.7° to 24.9° is 0.7 or greater. A pH is 7 to 10 when 1 g of the negative electrode active material is dispersed in 100 mL of water at 25° C.
Resumen de: US2024280320A1
A battery manufacturing method includes providing a battery part in a drying unit; providing a drying agent in a mixing unit; controlling, by the mixing unit, humidity and/or temperature of the drying agent; and feeding the drying agent from the mixing unit to the drying unit.
Resumen de: US2024280360A1
A system includes a top scanner head configured over a coated substrate. An x-ray sensor and a second x-ray sensor scan the coated substrate. At least one of the x-ray sensor and second x-ray sensor is tuned to an energy level below an absorption peak and at least one of the x-ray sensor and second x-ray sensor is tuned to an energy level above the absorption peak. The x-ray sensor and second x-ray sensor scan a same sheet spot on the coated substrate. A bottom scanner head is configured underneath the coated substrate to provide a location for a detection of x-rays for the x-ray sensor and the second x-ray sensor.
Resumen de: US2024279077A1
Disclosed herein is a particulate material of the composition LiaMgb)i+x(NicM1dM2e)1−xO2 where M1 is selected from Ti, Zr, Nb, Mo, and W, and combinations of at least two thereof; M2 is selected from Al, Co, Mn, and combinations of at least two thereof; a:b is in the range of from 100:1 to 400:1, and a+b=1; c:d is in the range of from 40:1 to 250:1, and c:e is in the range of from 12:1 to 50:1; and c+d+e=1; the total molar ratio of (Li+Mg) to (Ni+M1+M2) is in the range of from 1:1 to 1.05:1; and 0.00≤x≤0.05, where the particulate material has an average particle diameter (D50) in the range of from 2 to 20 μm.
Resumen de: US2024282939A1
A negative active material includes silicon-oxygen particles and a silicon-oxygen-carbon layer located on surfaces of the silicon-oxygen particles, where the silicon-oxygen-carbon layer includes silicon-oxygen-carbon composite particles. Applied to an electrochemical device, the negative active material improves the cycle performance significantly.
Resumen de: US2024282968A1
The disclosure aims to provide a polytetrafluoroethylene powder for an electrode binder which can not only reduce or prevent gas generation inside a battery cell and deterioration of battery characteristics but also improve the electrode strength, an electrode binder, an electrode mixture, an electrode, and a secondary battery. Provided is a polytetrafluoroethylene powder for use as an electrode binder, the polytetrafluoroethylene having a standard specific gravity of 2.200 or less and being substantially free from water.
Resumen de: US2024283096A1
An improved battery pack 100/200 is disclosed, having a plurality of cylindrical cells 102 arranged in parallel disposition in rows 104/204 and columns 106/206 such that positive and negative terminals of any of the cells and the closest surrounding cells are oppositely placed to minimise the overall magnetic field due to the internal current of the cells by the opposite magnetic field of the oppositely placed adjacent cells. The positive and negative terminals at any of or both of upper and lower ends of the cells 102 in a group of adjacently located columns are connected by criss-cross connections 108/208 to provide parallel electric connection of the cells 102 in groups of adjacently located columns 106/206. Criss-cross connections 108/208 pertaining to the terminals of opposite polarity are connected by series connections 110/210 to provide series connection of the sets of cells connected in parallel by the criss-cross connections 108/208.
Resumen de: US2024282948A1
This application provides a secondary battery, a battery module, a battery pack, and an electric apparatus. The secondary battery includes a positive electrode plate and a non-aqueous electrolyte. The positive electrode plate includes a positive electrode active material having a core-shell structure, the positive electrode active material including a core and a shell enveloping the core. A chemical formula of the core is Li1+xMn1−yAyP1-zRzO4. A is one or more elements selected from Zn, Al, Na, K, Mg, Mo, W, Ti, V, Zr, Fe, Ni, Co, Ga, Sn, Sb, Nb and Ge. R is one or more elements selected from B, Si, N, and S. The first coating layer includes a crystalline pyrophosphate LiaMP2O7 and/or Mb(P2O7)c. The second coating layer includes a crystalline phosphate XPO4. The third coating layer is carbon. The non-aqueous electrolyte includes a first solvent, the first solvent including one or more of the compounds represented by formula 1.
Resumen de: WO2024169929A1
A power battery charging method, comprising: acquiring the power of a vehicle-mounted charger, the power of a vehicle-mounted accessory, heating power that can be provided by the vehicle-mounted charger for a power battery, and the current temperature and the target temperature of the power battery during vehicle charging; on the basis of the heating power, determining a heating duration required for heating the power battery from the current temperature to the target temperature; determining a first state of charge of the power battery on the basis of the difference between the state of charge of the power battery in a full state and the increase in the state of charge of the power battery in the heating duration; and in response to the state of charge of the power battery reaching the first state of charge, heating the power battery on the basis of the heating power, and charging the power battery on the basis of the remaining available power. Also disclosed are a power battery charging apparatus using the method, a vehicle, and a computer-readable storage medium and a computer program product for the method. According to the method, it can be guaranteed that a power battery can be fully charged in a low-temperature environment, the low-temperature endurance of an electric vehicle is improved, and the heating energy consumption of the battery is also reduced.
Resumen de: WO2024170008A1
The present invention belongs to the technical field of electromechanics, and provides an electric tool, which solves the problems of existing non-contact gear shifting water drills being unstable in terms of skipping gears during use. The present invention comprises a shell, a power output assembly and a gear shifting assembly, wherein the power output assembly comprises a high-speed driving gear, a low-speed driving gear, a high-speed driven gear and a low-speed driven gear, the high-speed driven gear and the high-speed driving gear being configured to mutually mesh, and the low-speed driven gear and the low-speed driving gear being configured to mutually mesh; and the gear shifting assembly comprises a gear shifting knob and a gear shifting clutch sleeve, the gear shifting clutch sleeve being positioned between the high-speed driven gear and the low-speed driven gear. The advantages of the present invention lie in: by means of rotating the gear shifting knob, the gear shifting clutch sleeve is pushed to translate, so that the gear shifting clutch sleeve switches to be in meshing connection with the high-speed driven gear or the low-speed driven gear, thereby realizing the shifting between high and low gears. The present invention is convenient in terms of gear shifting operations, and has a high gear shifting success rate.
Resumen de: WO2024173935A1
Methods of recycling and recovering lithium-ion batteries (LIB) and electrode materials thereof, including recovering reusable electrode materials from spent LIBs and electrode scraps produced as a byproduct of LIB production. An electrode sheet is separated from a lithium-ion battery or obtained as a component of a lithium-ion battery. The electrode sheet includes an electrode active material, a polyvinylidene fluoride binder, a carbon-based material, and a current collector. At least a portion of the electrode sheet is immersed in propylene carbonate to delaminate the electrode active material from the current collector and form a solid/liquid mixture. The propylene carbonate is separated from the solid/liquid mixture and the electrode active material is separated from the polyvinylidene fluoride binder, the carbon-based material, and the current collector.
Resumen de: WO2024173770A2
A method can include: receiving a gel electrolyte precursor solution comprising a polymeric precursor (such as monomers or oligomers), an initiator, and a plasticizer; adding the gel electrolyte precursor solution to a battery stack; wetting the battery stack with the gel electrolyte precursor solution; and curing the gel electrolyte precursor to form a covalently bonded gel electrolyte network interspersed throughout the battery stack.
Resumen de: US2024279013A1
A sheet conveying apparatus includes: a first conveying portion in which a band-shaped sheet including a first surface and a second surface is conveyed with the first surface facing downward; a turning portion located downstream of the first conveying portion and flips the sheet with the first surface facing inward; and a second conveying portion located downstream of the turning portion. The turning portion includes a convex curve along which the sheet is flipped. The convex curve includes a first and a second air ejection portions. The first air ejection portion is located in an upstream end region and ejects air toward the first surface of the sheet. The second air ejection portion is located downstream of the upstream end region and ejects air toward the first surface. The first air ejection portion ejects air to generate flotation larger than that of the second air ejection portion.
Resumen de: US2024279064A1
A composite particle including carbon and silicon, in which the composite particle contains a crystalline metal oxide particle, and the end of the metal oxide particle is present inside the surface of the composite particle, and pores are present on the surface of the composite particle. According to the present invention, there can be provided a composite particle, in which silicon is attached to the inside of fine pores of a carbon material that has been provided with specific fine pores, the composite particle also contains a crystalline metal oxide particle, the end of the metal oxide particle is present inside the surface of the composite particle, and furthermore, pores are present on the surface of the composite particle. By using this composite particle, a lithium-ion secondary battery with excellent rate characteristics and cycle characteristics can be provided.
Resumen de: US2024279778A1
The invention concerns a method to make an aluminium alloy sheet product wherein successively, a slab is cast of an aluminium alloy comprising, by weight % Mn: 0.9-1.2, Fe: 0.5-0.8, Si: 0.05-0.25, Cu: 0.06-0.20, Ti: ≤0.1, and by ppm, Mg: <100, Zn: <100, B: <200, Sn: <100, Bi: <100, Cr: ≤100, other impurities <500 each and <1500 total, remainder aluminium, the slab is homogenized at a temperature of at least 610° C. and preferably of at least 615° C., the homogenized slab is hot rolled and cold rolled into a sheet, which is optionally thermally treated and/or tension leveled. The aluminium alloy sheet product of the invention are useful in particular to make parallelepiped battery housing.
Resumen de: US2024279777A1
A method of forming a component can include electrochemically depositing a metallic material onto a carrier component to a thickness of greater than 50 microns. The metallic material can include crystal grains and at least 90% of the crystal grains can include nanotwin boundaries. The metallic material can include a Copper-Silver alloy (Cu—Ag) with between about 0.5-2 at %-Ag.
Resumen de: US2024282934A1
Described herein are improved composite anodes and lithium-ion batteries made therefrom. Further described are methods of making and using the improved anodes and batteries. In general, the anodes include a porous composite having a plurality of agglomerated nanocomposites. At least one of the plurality of agglomerated nanocomposites is formed from a dendritic particle, which is a three-dimensional, randomly-ordered assembly of nanoparticles of an electrically conducting material and a plurality of discrete non-porous nanoparticles of a non-carbon Group 4A element or mixture thereof disposed on a surface of the dendritic particle. At least one nanocomposite of the plurality of agglomerated nanocomposites has at least a portion of its dendritic particle in electrical communication with at least a portion of a dendritic particle of an adjacent nanocomposite in the plurality of agglomerated nanocomposites.
Resumen de: US2024282933A1
Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided.
Nº publicación: US2024283084A1 22/08/2024
Solicitante:
SK ON CO LTD [KR]
SK On Co., Ltd
Resumen de: US2024283084A1
A battery device is disclosed, the battery device may include: a cell stack in which a plurality of battery cells are stacked; and a case accommodating the cell stack therein, wherein the case may have a plurality of first venting holes formed in an upper plate covering an upper surface of the cell stack, and have a plurality of second venting holes formed in a side plate covering a first side surface of the cell stack.