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1111
resultados
Última actualización
03/09/2024 [07:45:00]
Resultados 725 a 750 de 1111
Resumen de: US2024282964A1
A secondary battery includes an electrode wound body including a positive electrode and a negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer. The negative electrode includes a negative electrode current collector and a negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer each include a fluorine compound and a nitrogen compound. A weight ratio of a fluorine content to a nitrogen content in the positive electrode active material layer is greater than or equal to 3 and less than or equal to 50. A weight ratio of a fluorine content to a nitrogen content in the negative electrode active material layer is greater than or equal to 1 and less than or equal to 30.
Resumen de: US2024282974A1
A negative electrode active material includes carbon-silicon-oxygen particles and an aluminum oxide layer located on a surface of the carbon-silicon-oxygen particles, where the carbon-silicon-oxygen particles are represented by SiCxOy, 0<x<0.04, and 0.8<y<1.2. The negative electrode active material is used for the electrochemical apparatus and can significantly improve the cycling performance.
Resumen de: WO2024168692A1
Provided in the present application are a battery cell, a battery, an electric device, and a method for preparing a battery cell. The battery cell comprises: a housing having an opening; an end cap assembly for closing the opening; an electrode assembly accommodated inside the housing; and a receiving component accommodated inside the housing, the receiving component being used for accommodating the electrode assembly and an electrolyte. In the technical solution of the present application, the receiving component is arranged inside the housing, and the electrolyte and the electrode assembly are both stored in the receiving component, so that the receiving component can isolate the electrolyte from the housing and the end cap assembly to a certain extent, and the receiving component plays a certain role in secondary sealing of the electrolyte. Therefore, the risk of the electrolyte corroding the housing and the end cap assembly can be reduced, and the risk of the performance of the battery being affected due to failure of connection between the housing and the end cap assembly and leakage of the electrolyte at the connection between the housing and the end cap assembly can be reduced, thereby improving the reliability of the performance of the battery.
Resumen de: WO2024168729A1
Provided in the embodiments of the present application are a battery cell, a battery and an electrical device. The battery cell comprises: a first wall and a second wall which are oppositely arranged; a first electrode terminal, arranged on the first wall, the maximum height of the first electrode terminal protruding from a first surface of the first wall facing the outside of the battery cell being a first height; a second electrode terminal, arranged on the second wall, the structure of the second electrode terminal being different from that of the first electrode terminal, the maximum height of the second electrode terminal protruding from a second surface of the second wall facing the outside of the battery cell being a second height, and the range of a difference value between the first height and the second height being -2 mm, 2 mm. The battery cell, the battery and the electrical device provided by the embodiments of the present application can improve the processing efficiency of batteries.
Resumen de: WO2024168734A1
The embodiments of the present application provide a battery cell, a battery, and an electrical device. The battery cell is provided with a liquid injection hole, the center of an orthographic projection of the battery monomer along a first direction overlaps with the center of an orthographic projection of the liquid injection hole along the first direction, and the first direction is the direction of the central axis of the liquid injection hole. The battery cell, battery, and the electrical device of the embodiments of the present application improve battery cell processing efficiency.
Resumen de: WO2024173731A1
An example embodiment includes a battery having a plurality of battery modules, each battery module comprising a plurality of battery cells; a pressure control system configured to provide fluid having a target fluid pressure that achieves a target pressure to be applied to respective battery cells of a battery module; and a thermal control system configured to supply coolant to the battery module to achieve a target temperature.
Resumen de: WO2024173471A1
An iron anode employs an electrolyte for generating an anode reaction to convert between Iron II and Iron III ions, denoted by Fe(OH)2 and FeOOH, rather than tending towards formation of highly stable Fe3O4, which can tend to cause "dead" regions in the battery. A suitable battery chemistry includes iron-air and other iron metal batteries operable with an aqueous electrolyte and employing oxygen and water cathodes. The iron anode battery employs inexpensive available iron, rather than more expensive and/or volatile materials used in Li-ion and lead-acid batteries. An aqueous electrolyte formed from sodium hydroxide and silicates, optionally with potassium or chloride salts, forms an anode reaction with nanostructured iron oxide particles in a safe and stable battery chemistry which is readily scalable for grid storage.
Resumen de: WO2024173252A1
An example electrode fabricated using a solvent-free process is provided. The electrode includes a substrate including a dry mixture of active materials, binder, and conductive additives electrostatically sprayed onto the substrate, thermally activated, and bonded to the substrate. The binder and the conductive additives form conductive binder agglomeration clusters. The binder and the conductive additives uniformly cover a surface of the active materials. The binder is uniformly distributed in a thickness direction of the electrode. The electrode includes pores between the active materials that are both microsize pores and submicron- size pores. The micro-size pores are open pores that allow electrolyte to diffuse.
Resumen de: WO2024172503A1
The present invention relates to a cathode active material of an overlithiated manganese-based oxide and a preparation method therefor, the cathode active material exhibiting enhanced capacity characteristics and excellent lifespan characteristics and rolling characteristics. The cathode active material is represented by chemical formula 1, and may contain an overlithiated manganese-based oxide having a mixed structure of a rock-salt phase lithium manganese oxide and a layered lithium transition metal oxide and have a predetermined internal porosity. Chemical formula 1 LiaNibCocMndMeO2 , where 1.00 < a, 0 ≤ b ≤ 0.53, 0 ≤ c ≤ 0.10, 0.47 ≤ d ≤ 1.00, 0 ≤ e ≤ 0.20, and M is at least one selected from the group consisting of Al, B, Co, W, Mg, V, Ti, Zn, Ga, In, Ru, Nb, Sn, Sr, and Zr.
Resumen de: WO2024172493A1
The objective of the present invention is to provide a sulfide-based solid electrolyte having improved lithium ionic conductivity, a method for preparing the sulfide-based solid electrolyte, and an all-solid-state battery comprising the sulfide-based solid electrolyte. The present invention provides a sulfide-based solid electrolyte that is a glass ceramic, the sulfide-based solid electrolyte comprising a thio-LISICON Region Ⅱ-type crystalline phase, and having a chemical formula presented by (100-x){(0.75+y/(100-x))Li2S-0.25P2S5}-xLiHa, wherein In the chemical formula, Ha is one or more elements selected from halogen elements and satisfies 15≤x≤30 and 0
Resumen de: US2024279831A1
The present invention discloses a method for recycling a spent lithium-ion battery, including the following steps: sandwiching a cathode of the spent lithium-ion battery with a conductive acid-resistant material as a cathode of a primary battery system; sandwiching an anode of the spent lithium-ion battery with a conductive acid-resistant material as an anode of the primary battery system; injecting an acid solution into a chamber of the primary battery system; and carrying out, after an electrochemical reaction is completed, solid-liquid separation on a mixed liquor in the chamber. The present invention further discloses an electrochemical system for recycling a spent lithium-ion battery. The method for recycling a spent lithium-ion battery in the present invention requires only dismantlement of cathode and anode materials, without a series of complex pretreatment operations on the cathode materials of the spent lithium-ion battery. In addition, by the method, the cathodes and anodes of the spent lithium-ion battery can be recycled at the same time, and valuable elements can be separated, which is greatly improved compared with the electrolytic leaching method. Moreover, there is no need to add an external power supply, which saves energy and can also output electricity.
Resumen de: US2024278994A1
The invention relates to a stacking column for storing electric vehicle batteries one above the other or next to one another on or on pawls (7.1-7.3), wherein the pawls (7.1-7.3) are accommodated in a U-body and the U-body has two side walls (1.1, 1.2), a rear wall (2) and an opening edge, wherein the pawls (7.1-7.3) rotate about axes (8.1-8.3) from a resting position into a working position between the two side walls (1.1, 1.2) and have a support part (9) on one side of the axis (8.1-8.3) and a rear part (10) on the other side of the axis (8.1-8.3), wherein the pawl (7.1-7.3) is supported in the working position with the rear part (10) against a polygonal bolt stop (13), wherein the polygonal bolt stop (13) is arranged between the two side walls (1.1, 1.2) with on the rear wall (2) and the supporting part (9) rests on a polygonal bolt support (12), wherein the polygonal bolt support (12) rests between the two side walls (1.1, 1.2) at the opening edge ( ), suitable for supporting the support part (9) of the pawls (7.1-7.3) in the working position in a bottom side by the polygonal bolt support (12), the polygonal bolt stop (13) simultaneously bearing in a supporting manner in an upper side of the rear part (10) of the pawls (7.1-7.3).
Resumen de: US2024279259A1
Disclosed are lithium difluoro-bis(oxalate)phosphate, a preparation method therefor, and an application thereof. The preparation method comprises the following steps: (1) mixing oxalyl chloride and lithium hexafluorophosphate with a nonaqueous solvent, adding siloxane, and reacting to obtain a lithium difluoro-bis(oxalate)phosphate solution; and (2) adding a poor solvent into the lithium difluoro-bis(oxalate)phosphate solution for crystallization treatment to obtain the lithium difluoro-bis(oxalate)phosphate. According to the present application, raw materials such as lithium hexafluorophosphate, oxalyl chloride, and hexamethyldisiloxane are used for preparing the difluoro-bis(oxalate)phosphate, and the method of the present application is few in side reaction, few in impurities, high in product purity, and suitable for industrial production.
Resumen de: US2024279250A1
A method of forming a single-ion conductive network comprising reaction of a first compound of formula (I) with a second compound and a third compound: formula (I). X is selected from the group consisting of B and Al. M+ is a cation, e.g. a lithium ion. The second compound comprises at least two hydroxyl groups, e.g. a diol. The third compound comprises only one hydroxyl group. The single-ion conductive network may be used in a metal battery or metal ion battery.
Resumen de: US2024282917A1
A negative electrode slurry includes a negative electrode active material including a first active material including silicon atoms in an amount of greater than or equal to about 20 wt % and less than or equal to about 100 wt % of the first active material, a binder, and a solvent to disperse the negative electrode active material and the binder in the negative electrode slurry, wherein the binder includes a particulate dispersed body and a water-soluble copolymer including a copolymer including an acrylic acid-based monomer unit, a sodium styrene sulfonate monomer unit, and an acrylonitrile-based monomer unit, a weight average molecular weight of the copolymer is about 300,000 to about 2,000,000, and an amount of the water-soluble copolymer is greater than or equal to about 0.5 wt % and less than or equal to about 2 wt % based of 100 wt % of the negative electrode active material and the binder.
Resumen de: US2024282915A1
Provided are a negative electrode for a lithium secondary battery and a method of manufacturing the same. An implementation may provide a negative electrode for a lithium secondary battery including: a Si-containing negative electrode active material, wherein when a value derived according to the following Equation (1) by charging/discharging a lithium secondary battery including a negative electrode and a positive electrode including a Li-containing positive electrode active material n times, discharging the battery to 2.5 V, disassembling the battery to obtain the negative electrode and the positive electrode, and analyzing the negative electrode and the positive electrode is SEIn, a (SEI100−SEI5) value is 10 or less: (1) SEIn=(Si0/Sin−1)−((CLL*CW/CMW*(1−MLi/MTM)*LiMW)/ALL).
Resumen de: US2024283098A1
A module connector for electrically and mechanically connecting battery modules includes a connecting element, a first connecting device, and a second connecting device. The connecting element has a first interface and a second interface. The first interface can be mechanically and electrically connected to a first battery module by means of the first connecting device. The second interface can be mechanically and electrically connected to a second battery module by means of the second connecting device. At least one of the first connecting device and the second connecting device forms a joint with the connecting element for providing a geometric tolerance compensation during assembly.
Resumen de: US2024282914A1
A high-entropy hydrogen storage alloy includes Ti: 5 atom % or more and 35 atom % or less, Zr: 5 atom % or more and 35 atom % or less, Ni: 5 atom % or more and 35 atom % or less, Cr: 5 atom % or more and 35 atom % or less, and Mn: 5 atom % or more and 35 atom % or less, in which a mixing entropy ΔSmix represented by the following formula (1) is 1.5 R or more. The crystal structure of a main phase is a C14 type.ΔSmix=−RΣxi ln(xi) (1)(wherein R in the formula (1) represents the gas constant, and xi represents a molar fraction of an individual element contained in the high-entropy hydrogen storage alloy.)
Resumen de: US2024282961A1
Disclosed herein is a process for making a coated cathode active material, where the process includes the following steps:(a) providing an electrode active material according to general formula Li1+xTM1−xO2, where TM is a combination of metals according to general formula (I), and x is in the range of from zero to 0.2, with a moisture content in the range of from 500 to 1,500 ppm,(b) reacting the electrode active material with a silicon alkoxide and an alkyl aluminum compound in one or more sub-steps, and(c) heat-treating the material so obtained in an oxygen-containing atmosphere at a temperature in the range of from 100 to 400° C. for 10 minutes to 4 hours.
Resumen de: WO2024169480A1
Provided is a battery, comprising a first battery cell, a second battery cell, a packaging film, and a separator. The packaging film comprises a first film shell and a second film shell, the separator is arranged between the first film shell and the second film shell, the separator is used for separating the first film shell and the second film shell, and a first accommodating cavity and a second accommodating cavity which are arranged in parallel are thus formed. The first battery cell is accommodated in the first accommodating cavity, and the second battery cell is accommodated in the second accommodating cavity. The first film shell, the separator and the second film shell form a plurality of packaging edges, and the plurality of packaging edges comprise a first packaging edge where tabs of the first battery cell and tabs of the second battery cell are located. The thickness of a hot melt adhesive of the first packaging edge on the side of tabs of each of at least one of the first battery cell and the second battery cell close to the separator is greater than the thickness of a hot melt adhesive of the first packaging edge on the side of the tabs of the battery cell distant from the separator. Thus, a certain distance is kept between a non-separator side of sealed tabs and a packaging film can be ensured, so that the risk of short circuit caused by contact of the tabs is lowered, thereby improving the safety of a battery.
Resumen de: WO2024169472A1
A current collecting assembly, an energy storage apparatus, and an electric device. The current collecting assembly comprises a first connecting member and a second connecting member; the first connecting member comprises a first connecting portion, a second connecting portion, and a conducting portion; the conducting portion is provided with at least one first reinforcing rib and at least one second reinforcing rib, the first reinforcing rib protrudes out of a first surface of the conducting portion, and the second reinforcing rib protrudes out of a second surface of the conducting portion; the second connecting portion is mechanically connected to the surface of the second connecting member, and after the second connecting portion rotates, the second connecting member is located on the side of the second connecting portion facing away from the conducting portion.
Resumen de: WO2024169494A1
The present invention relates to the field of lithium-ion batteries, and in particular relates to a gel electrolyte lithium-ion battery containing an ionic polymer and a preparation method therefor. The gel electrolyte lithium-ion battery containing an ionic polymer comprises a positive electrode, a negative electrode, an isolator and an electrolyte; at least one of the positive electrode, the negative electrode and the isolator comprises an ionic polymer, and in the ionic polymer, Mw/Ma is 2-2000, Mw being the weight average molecular mass of the ionic polymer, Ma being the ratio of the mass of the ionic polymer to the molar number of anionic groups contained therein, and Ma being 100-2000 g/mol. The gel electrolyte lithium-ion battery may be prepared using a traditional production process, preventing the problems in the existing technology of a process being complex or an electrolyte being unstable and electrode infiltration being difficult, which are caused by adding a gel polymer or a precursor thereof into an electrolyte. Moreover, said battery may meet the requirements for high-energy density batteries.
Resumen de: WO2024172712A1
The present application relates to a device for evacuating unwanted matter from an enclosure (16) of a battery pack (14) arranged in a vehicle (10), which vehicle (10) is provided with at least one pressurized air tank (18), wherein the device comprises a conduit (20. 20') connected to the at least one air tank (18) as well as to the (16) enclosure of the battery pack; a first valve (22) provided in said conduit (20, 20') for opening and closing a passage between said at least one air tank (18) and the interior of said enclosure (16); a second valve (28) provided in said enclosure (16) for opening and closing an outlet from said enclosure (16), wherein, when said first valve (22) is opened, pressurized air enters said enclosure (16), causing unwanted matter to exit through said second valve (28), and at least one sensor (32, 36) provided in said enclosure (16), which at least one sensor (32, 36) is capable of detecting unwanted matter inside said enclosure (16), and operably connected to said first valve (22) for opening said first valve (22) when unwanted matter is detected.
Resumen de: WO2024172398A1
According to exemplary embodiments, an inspection device is provided. The device comprises: a scanner configured to scan a resin composition on a frame to determine a three-dimensional profile of the frame and the resin composition on the frame; and an analyzer configured to determine the area of the resin composition and the mass of the resin composition on the basis of the three-dimensional profile.
Nº publicación: WO2024172516A1 22/08/2024
Solicitante:
LG ENERGY SOLUTION LTD [KR]
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Resumen de: WO2024172516A1
Disclosed is a battery package. The battery package according to the present invention may comprise: a pack case; a plurality of battery modules respectively accommodated in accommodation spaces of the pack case; drain parts arranged below the battery modules; and heat conductive members that are arranged between the battery modules and the drain parts and melt and flow down to the drain parts in the event of thermal runaway in the battery modules, thereby forming insulating spaces between the battery modules and the drain parts.
BOPI
Sede Electrónica
