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1111
resultados
Última actualización
03/09/2024 [07:45:00]
Resultados 775 a 800 de 1111
Resumen de: US2024282950A1
The present exemplary embodiments relate to a positive electrode active material and a lithium secondary battery including the same. According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery including a metal oxide particle including nickel, cobalt and manganese, and five types of doping elements doped on the metal oxide particles is provided.
Resumen de: US2024282944A1
A lithium metal negative electrode secondary battery comprises a positive electrode, a separator, a negative electrode, and an electrolyte solution. The electrolyte solution includes Li ions. The separator is interposed between the positive electrode and the negative electrode. The negative electrode includes a negative electrode base material and a Li metal layer. The Li metal layer includes a continuous phase and a dispersed phase. The continuous phase includes Li metal. The dispersed phase includes a Li-ion conductor. The Li-ion conductor has a Li-ion conductivity from 1.0×10−13 to 2.0×10−9 S/cm.
Resumen de: WO2024169154A1
The present application relates to the technical field of energy storage devices, and relates to a top cover assembly and a secondary battery. The top cover assembly comprises: a top cover sheet, the top cover sheet being provided with pole through holes; pole terminals, each pole terminal comprising an insertion section and an exposed section, wherein the insertion section is provided with transition slots, the insertion section penetrates into the corresponding pole through hole, the exposed section is located on the periphery of the insertion section, and the exposed section is connected to the surface of the top cover sheet adjacent to the corresponding pole through hole; and sealing members, each sealing member being accommodated in the corresponding transition slot, and the sealing member being connected to the slot wall of the corresponding transition slot. In this way, the structure of the top cover assembly can be simplified, the requirement for light weight of a secondary battery is effectively satisfied, and the risk of accumulation of liquid in the pole terminals in the top cover assembly can be reduced.
Resumen de: WO2024168832A1
The present application provides an ether polymer, an electrode sheet, and a battery cell, a battery, and an electric device related thereto. The ether polymer is added to a first solvent at 45°C to form an ether polymer system; the ether polymer system stands for 8 hours at 45°C; after standing for 24 hours or longer at 25°C, the ether polymer system is filtered by means of a 200-mesh filter screen and then a first substance remains. The mass of the ether polymer is n, and the unit of the ether polymer is g; the mass of the first substance is m, and the unit of the first substance is g; the ether polymer and the first substance satisfy: 5≤m/n≤1000. When the ether polymer is applied to a battery cell, the cycle performance of the battery cell can be improved.
Resumen de: WO2024168596A1
The present application relates to the field of batteries. Provided are a battery and an electric device. The battery comprises a plurality of battery cells and thermal insulation members, wherein each thermal insulation member is arranged between two adjacent battery cells; and each thermal insulation member is an adhesive layer for connecting the two adjacent battery cells. In the battery, a thermal insulation member is disposed between two adjacent battery cells, and the thermal insulation member can realize a thermal insulation effect, such that when thermal runaway occurs in a certain battery cell, the heat thereof is not easily conducted to the other battery cell, thus not easily causing thermal runaway of the other battery cell. The thermal insulation member is an adhesive layer for connecting the two adjacent battery cells, and therefore during the manufacturing of the battery, the adhesive layer can be formed simply by means of coating an adhesive material onto the battery cells and pressing the two battery cells together, such that the present application involves a simple process, and has inexpensive manufacturing costs.
Resumen de: WO2024172554A1
The present invention provides a battery unit structure in which a venting area is expanded through a rupture due to an increase in internal pressure even if an existing venting hole is blocked, so that gas can be discharged and the ejection of material and flames can be prevented. The battery unit structure according to one aspect of the invention comprises: a battery cell; a battery housing having an accommodation space in which the battery cell is accommodated, and having, on at least one side thereof, a venting part for discharging gas generated by the battery cell; and a battery cover for covering the battery cell, wherein the venting part can include: a discharge part having a venting hole for discharging the gas, and a rupture part that ruptures if the internal pressure of the accommodation space becomes greater than or equal to a predetermined pressure; and a mesh part positioned to face the accommodation space with the discharge part therebetween.
Resumen de: WO2024172548A1
The present disclosure relates to an electrode plate inspection device and an electrode plate inspection method. The electrode plate inspection device and the electrode plate inspection method can detect an electrode plate to which foreign material is attached, and an electrode plate in a state in which a plurality of electrode plates overlap.
Resumen de: WO2024172547A1
The present disclosure relates to an electrode plate stacking apparatus and an electrode plate stacking method. The electrode plate stacking apparatus and the electrode plate stacking method prevent a separator having a damaged shape from being stacked on the electrode plate, thereby preventing degradation of performance of a battery cell manufactured having the separator included.
Resumen de: WO2024172308A1
The present invention provides a battery system assembly comprising: a battery module including a plurality of battery cells and a sensing block which is configured to sense state information related to operation states of the battery cells; and a management module including a cell monitoring unit which is connected to the sensing block through a board-to-board connection and receives the state information, and a battery management unit which is connected to the cell monitoring unit via wireless communication and receives the state information.
Resumen de: WO2024172544A1
The present invention relates to a secondary battery which is charged and discharged by the oxidation and reduction of metal ions dissolved in an electrolyte, and an energy storage device comprising same. The secondary battery according to an embodiment of the present invention comprises: a plurality of layers in which oxidation-reduction reactions occur; a plurality of monoblocks in each of which the plurality of layers are stacked in the height direction; a plurality of racks in each of which the plurality of monoblocks are accommodated arranged in the height direction; and an enclosure in which the plurality of racks are accommodated.
Resumen de: WO2024172317A1
The present invention provides a cathode active material, which comprises an active material core and a surface part formed on at least a portion of the active material core, wherein the surface part simultaneously comprises an α-phase-Al compound and an γ-phase-Al compound.
Resumen de: US2024283088A1
A separator for an electrochemical device. The separator includes a porous substrate made of a porous polymer film having an excellent compressibility and permanent strain. The porous substrate has excellent physical strength and durability, and ensures a high breakdown voltage while using a heat resistant layer having a small thickness, and thus shows a low possibility of short-circuit generation. In addition, the separator may further include a heat resistant layer including inorganic particles, on the surface of the porous substrate. It is possible to further improve the compressibility, maximum compressibility and permanent strain characteristics depending on the types of inorganic particles.
Resumen de: US2024283089A1
Provided are proton conducting separator materials and rechargeable proton conducing cells that employ the separator materials. The separators include an inorganic ceramic material optionally present as a predominant in the separator. The inorganic ceramic material includes less than 85 weight percent perovskite oxide phase and exhibits a proton conductivity of 0.1 mS/cm or greater at 25 degrees Celsius. Also provide are methods for forming inorganic ceramic materials with improved proton conductivity to allow them to function effectively as a separator in a rechargeable proton conducting cell.
Resumen de: US2024283116A1
A protector to be attached to a group of power storage elements that include electrode terminals includes a body portion and cover portions. The body portion includes openings that open in different directions and have opening edges. The cover portions extend from the opening edges of the openings and cover at least portions of the openings. Each of the cover portions includes a base portion, strip portions, and slits. The base portion is connected to the body portion via a hinge portion to be rotatable with respect to the body portion. The strip portions extend from the base portion and are elastically deformable to open a portion of a corresponding one of the openings. The slits are between the strip portions.
Resumen de: US2024283094A1
A lithium metal negative electrode secondary battery comprises a positive electrode, a separator, a negative electrode, and an electrolyte solution. The electrolyte solution includes Li ions. The separator is interposed between the positive electrode and the negative electrode. The separator includes a porous base material and a covering layer. The porous base material has a first main face and a second main face. The first main face faces the positive electrode. The second main face faces the negative electrode. The covering layer covers the second main face. The covering layer includes a Li-ion conductor. The Li-ion conductor has a Li-ion conductivity from 1.0×10−13 to 2.0×10−9 S/cm.
Resumen de: US2024283091A1
Provided are a separator comprising a base film and a coating on the base film, wherein the coating comprises a ceramic layer partially embedded in the base film and a boehmite-like layer on the ceramic layer. The separator of the present application may effectively consume lithium dendrites, avoids the lithium dendrites from piercing the separator, and at the same time has a relatively low internal resistance. The present application further provides a method for preparing the separator, and a secondary battery, a battery module using the separator, a battery pack, and a power consuming device.
Resumen de: US2024282967A1
A secondary battery is disclosed. The secondary battery includes a first binder and a second binder, the first binder includes at least one of polyvinylidene fluoride, rubber, epoxy resin, polyurethane, and acrylate, and the second binder includes at least one of polytetrafluoroethylene, polyimide, polypropylene, polyethylene, ethylene vinyl acetate copolymer, and styrene-ethylene-butylene-styrene block copolymer.
Resumen de: US2024282943A1
An electrochemical apparatus includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte, where the positive electrode plate includes a positive electrode active material, the positive electrode active material includes element Co, and the electrolyte includes a polynitrile compound. The amount of the polynitrile compound is adjusted according to the amount of element Co in the positive electrode active material, and the polynitrile compound is in coordination complexation with Co with other additives used in combination. The structural stability of the positive electrode material with lithium highly released is significantly improved, inhibiting leaching of Co, reducing oxidization of the electrolyte by the positive electrode active material, and inhibiting related side reactions, thereby effectively improving performance of the electrochemical apparatus under high temperature.
Resumen de: US2024282963A1
A positive electrode active material has LiMPO4, wherein M includes Mn and a non-Mn element, and the non-Mn element satisfies at least one of the following conditions: the ionic radius of the non-Mn element being denoted as a, and the ionic radius of manganese element being denoted as b, |a−b|/b is not greater than 10%; the valence alternation voltage of the non-Mn element being denoted as U, 2 V
Resumen de: US2024282962A1
An anode active material for a secondary battery according to an embodiment includes comprising a lithium-silicon oxide particle that contains Li2Si2O5 and has a phase fraction ratio of 1.0 or less. A content of lithium elements on a surface of the lithium-silicon oxide particle measured through an X-ray photoelectron spectroscopy (XPS) analysis based on the total number of atoms on the surface of the lithium-silicon oxide particle measured through the XPS analysis is 10 atomic % or less.
Resumen de: US2024282959A1
A method for manufacturing a positive-electrode active material precursor for a nonaqueous electrolyte secondary battery containing a nickel-cobalt-manganese carbonate compound includes: an initial aqueous solution preparation process of preparing an initial aqueous solution; a nucleation process of forming nuclei; and a nucleus growth process of growing the nuclei. In the nucleation process, a pH value of the mixed aqueous solution is controlled to be greater than or equal to 8.0 at the reference reaction temperature of 25° C. In the nucleus growth process, the pH value of the mixed aqueous solution is controlled to be greater than or equal to 6.0 and less than or equal to 7.5 at the reference reaction temperature of 25° C. The nucleation process takes a time greater than or equal to 1/20 and less than or equal to 3/10 of a combined time of the nucleation process and the nucleus growth process.
Resumen de: US2024282956A1
A lithium secondary battery includes a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material and a nonaqueous electrolyte solution, wherein the positive electrode active material has a lithium composite transition metal oxide having a nickel content of 60 mol % or more in a total transition metal in a form of secondary particles formed by agglomeration of primary particles; and a boron containing coating layer on a surface of all or some of the primary particles, the nonaqueous electrolyte solution comprises a boron dissolved in the nonaqueous electrolyte solution, and a ratio B/A of a boron content (B) in the nonaqueous electrolyte solution to a boron content (A) in the positive electrode active material is 0.001 to 5. The lithium secondary battery according to the present disclosure has improved life characteristics.
Resumen de: US2024282924A1
The present application relates to the field of anode material, providing an anode material and a preparation method thereof, and a lithium ion battery, where the anode material, includes an aggregate, the aggregate includes an active material, a carbon material, and a conductive enhancer; where the conductive enhancer has a tensile strength of ≥500 MPa, and a dispersibility N in the anode material of ≥1. The node material can be effectively suppressed, improving cell cycle performance.
Resumen de: US2024283010A1
A solid electrolyte material comprising Li, T, X and A wherein T is at least one of P, As, Si, Ge, Al, and B; X is BH4; A is S, Se, or N. The solid electrolyte material may include glass ceramic and/or mixed crystalline phases, and exhibits high ionic conductivity and compatibility with high voltage cathodes and lithium metal anodes.
Nº publicación: US2024282960A1 22/08/2024
Solicitante:
NINGDE AMPEREX TECH LIMITED [CN]
Ningde Amperex Technology Limited
Resumen de: US2024282960A1
An electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte solution. The positive electrode includes a positive active material layer. The positive active material layer includes a positive active material represented by Formula (1): Li1+rNi1−p−qM1pM2qO2−sM3s Formula (1). In Formula (1), 0
BOPI
Sede Electrónica
