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1460
results.
Updated on
15/04/2026 [08:01:00]
Results 225 to 250 of 1460
Absstract of: US20260100357A1
A silicon-carbon composite material includes a core portion and a shell layer disposed on a surface of the core portion, where the core portion includes a silicon-based material and/or graphite, the shell layer includes a silicon-carbon composite, and the silicon-carbon composite includes a silicon-oxygen compound SiOx, where 0
Absstract of: US20260100413A1
A solid electrolyte material includes Li, Al, and X. X represents anions including F, and the solid electrolyte material has a specific surface area of greater than or equal to 16 m2/g. A method for producing the solid electrolyte material includes pulverizing a mixture containing a solvent and a raw material composition containing compositional components of the solid electrolyte material by wet pulverization. The positive electrode material contains a positive electrode active material coated with the solid electrolyte material.
Absstract of: US20260100454A1
0000 A battery includes an electrode assembly, a housing, and a terminal post, where the electrode assembly is accommodated in the housing. The housing includes a first wall and a second wall disposed opposite each other along a first direction and includes a peripheral side wall surrounding the first wall and the second wall and disposed therebetween. The first direction is a thickness direction of the battery. The first wall includes a reinforcement portion, where the reinforcement portion protrudes beyond the peripheral side wall. The peripheral side wall includes a top wall and a bottom wall disposed opposite each other along a second direction, where the top wall is provided with a through-hole, and the terminal post is disposed at the through-hole.
Absstract of: US20260100421A1
A battery includes an electrode assembly, a housing accommodating the electrode assembly, and a first layer including an insulating material. The electrode assembly includes a first electrode sheet and a second electrode sheet that are stacked and adjacently disposed along a fourth direction. The first electrode sheet includes a first edge extending along a first direction, a second edge extending along a second direction perpendicular to the first direction, and a third edge extending along a third direction intersecting both the first direction and the second direction, the third edge including a first end connected to the first edge and a second end connected to the second edge. The first layer is adhered to the first electrode sheet and includes a first border extending along the first direction and a second border extending along the second direction and connected to the first border.
Absstract of: US20260099160A1
0000 A monitoring device monitors a battery mounted on an eVTOL. A monitoring device includes an acquisition unit and an output unit. An acquisition unit acquires voltage information of the battery during flight and information related to the travel mode of the eVTOL. An output unit outputs monitoring result when a predetermined condition related to an abnormality of the battery is satisfied with reference to the voltage information and a threshold value set for each travel mode. By using the threshold value set for each travel mode, an abnormality of the battery can be detected early, and flight safety can be improved.
Absstract of: US20260100376A1
0000 An electrode mixture sheet having high tensile strength and low resistance, an electrode and a secondary battery each including the electrode mixture sheet, and a method of producing an electrode mixture sheet. An electrode mixture sheet including: a polytetrafluoroethylene; a carbon material; and an electrode active material other than the carbon material and/or a fluororesin other than the polytetrafluoroethylene, the electrode mixture sheet having a value X of 2300 or less, where the value X is expressed as interface length/amount of detected carbon in an image of carbon composition distribution in a 2000× field of view obtained by SEM-EDX analysis.
Absstract of: US20260100366A1
0000 The preparation method for a silicon-carbon anode material based on organosilicon-derived waste silicon powder includes: performing rapid annealing treatment on organosilicon-derived waste silicon powder, and mixing the rapidly annealed waste silicon powder with an acid solution for acid leaching to obtain modified waste silicon powder; performing mechanical grinding on the modified waste silicon powder to obtain a modified waste silicon powder abrasive; mixing the modified waste silicon powder abrasive with an organic carbon source and a solvent to obtain a precursor solution, and performing spray granulation on the precursor solution to obtain silicon-carbon microspheres; and introducing a carbon-deposition precursor source, and performing carbon deposition on the silicon-carbon microspheres to obtain a silicon-carbon anode material.
Absstract of: US20260100383A1
0000 The present disclosure provides as an electrode 1, comprising a 3D composite current collector 2 having an electrically conductive substrate current collector 3 with a plurality of laterally distributed electrically conductive upstanding scaffolding elements 4 that comprise carbon-based protrusions 6 covered by a passivation layer 10 for shielding the pillar from a direct contact with an electrode or electrolyte material, whereby said passivation layer (10) is comprised of a first composition (10c ) allowing electron transport to the substrate and resistive to transport of lithium across the passivation layer. 0000 In a preferred embodiment the electrode is coated with a stack of functional battery layers including one or more of a seed layer 20, an anode metal layer 30, and an anode passivation layer 40. 0000 The present disclosure further relates to a manufacturing method and an energy storage device comprising the electrode.
Absstract of: US20260100469A1
A cell stack assembly and a battery pack includes the same, the cell stack assembly including a cell stack having a plurality of battery cells stacked with electrode leads derived from one or both sides; and a separating member configured to contact a first side surface of at least one battery cell of the cell stack. The separating member including a hollow part therein and a protrusion part on each of both side surfaces.
Absstract of: US20260100602A1
0000 The present disclosure discloses a bus voltage modulation method for a series dynamic reconfiguration battery system, comprising: collecting a voltage value of each battery module, and arranging in a descending order according to magnitudes of the voltage values; selecting a battery module corresponding to the highest voltage value; determining whether the serial number i of the selected battery module is less than a total number N of series battery modules, if a determination result is YES, accumulating voltage values corresponding to the selected battery modules, and determining whether a voltage accumulation value of the battery modules is within a preset range; and repeating the above content until an output bus voltage meets requirements for the preset range. A dynamic reconfiguration battery system based on a software-defined technology of the present disclosure can reconstruct and output a desired bus voltage according to voltages of respective battery modules in real time.
Absstract of: US20260100418A1
The present application relates to the technical field of batteries, and to a non-aqueous electrolyte, a secondary battery and an electrical apparatus. The non-aqueous electrolyte comprises a cyclic sulfate additive and a phosphate or isocyanate additive. The present application further relates to a secondary battery comprising the non-aqueous electrolyte, and an electrical apparatus comprising the secondary battery.
Absstract of: US20260098911A1
A battery device removably connectable at least to a first battery and a second battery is described. The battery device includes processing circuitry configured to determine a battery health condition of the first battery based at least in part on a plurality of first data samples, a plurality of second data samples, a plurality of third data samples, a plurality of fourth data samples, and a first spread. The plurality of first data samples is associated with the first sensor and a first electrical parameter of the first battery. The plurality of second data samples is associated with the first sensor and a second electrical parameter of the first battery. The plurality of third data samples is associated with the second sensor and a third electrical parameter of the second battery. One or more actions are performed based on the determination of the battery health condition.
Absstract of: US20260100445A1
0000 The battery module according to one embodiment of the present disclosure includes a battery cell stack that includes a first battery cell stack and a second battery cell stack in which a plurality of battery cells are stacked; a module frame that houses the battery cell stack; and an inlet and an outlet that circulate a coolant inside the module frame, wherein the coolant flows into the inside of the module frame through the inlet, and is discharged through the outlet, and wherein an insulating plate is arranged between the first battery cell stack and the second battery cell stack, and an opening through which the coolant passes is formed in the insulating plate.
Absstract of: US20260100406A1
Methods of forming electrochemical cells are described. In some embodiments, the method can include providing an electrochemical cell having an electrode with at least about 20% to about 99% by weight of silicon. The method can include providing a formation charge current at greater than about 1C to the electrochemical cell. Alternatively or additionally, the method can include providing a formation charge current at a substantially constant charge voltage to the electrochemical cell.
Absstract of: US20260100434A1
A method of solvent and electrolyte extraction and recovery of electrode powder from lithium-ion cells, from a batch mixture containing solvents, the electrolyte and anode and cathode powders, in which the electrolyte is separated from the anode and cathode powder with a solvent mixture, while the solvent mixture is separated from the electrolyte through vacuum evaporation. The subsequent portions of the anode and cathode powder are separated from the subsequent batch portions fed to a reactor, obtaining the subsequent portions of the solvent mixture with the electrolyte. The solvents are separated from the electrolyte salts and added to the previously recovered solvents from the previous portions of the mixture of solvents and of the electrolyte. The obtained solvent mixture is returned to the reactor and subjected to extraction, recovering the subsequent quantities of the solvent mixture with the electrolyte, separated from the cathode and anode powder.
Absstract of: US20260100449A1
0000 Discussed is a battery pack that includes a battery module, and a pack housing configured to accommodate the battery module The pack housing may include a lower case to accommodate the battery module, an upper case coupled to the lower case to cover an upper opening of the lower case, a gasket provided on an interface between the lower case and the upper case, and an insulating member disposed between the battery module and the gasket.
Absstract of: US20260100437A1
A double-wall enclosure for thermal management of a battery pack that includes an inner hollow structure having an internal and external surface; the inner hollow structure having one or more battery modules located therein; and an outer hollow structure having an interior surface, wherein the external surface of the inner hollow structure either contacts the interior surface of the outer hollow structure or forms at least one channel with the interior surface of the outer hollow structure through which a heat transfer fluid flows. The inner hollow structure is formed of a polymer material, such that the inner hollow structure is in thermal contact with the heat transfer fluid in order to provide for the thermal management of the battery pack.
Absstract of: EP4722151A1
A lithium manganese iron phosphate cathode material, including a first lithium manganese iron phosphate particle and a second lithium manganese iron phosphate particle. A molar ratio of Mn to Fe in the first lithium manganese iron phosphate particle is greater than or equal to 1. A molar ratio of Mn to Fe in the second lithium manganese iron phosphate particle is smaller than or equal to the molar ratio of Mn to Fe in the first lithium manganese iron phosphate particle. A particle size of the first lithium manganese iron phosphate particle is smaller than or equal to a particle size of the second lithium manganese iron phosphate particle. A preparation method of the lithium manganese iron phosphate cathode material and an application thereof are provided. The first precursor, having a manganese content greater than or equal to that of iron, inhibits crystal growth during sintering, resulting in a smaller particle size. The second precursor, having a manganese to iron ratio smaller than or equal to the ratio in the first precursor, promotes crystal growth during sintering, resulting in a larger particle size. This results in a particle size grading between large particles and small particles, improves the spatial utilization of particle packing, and enhances the compaction density and volumetric capacity of the lithium manganese iron phosphate cathode material.
Absstract of: EP4723192A1
Provided herein is a lithium-ion battery and an electrical apparatus. A cathode active material of the lithium-ion battery in this disclosure includes lithium nickel cobalt manganese oxide and manganese iron lithium oxide, and a cathode of the battery satisfies a formula as follows: 0.5 ≤ R = 10 × ω × PD / ln(H) ≤ 4; where ω is a weight percentage of manganese iron lithium oxide in the cathode active material; PD is a compaction density of the cathode in g/cm3; H is an enthalpy value of the cathode in J/g.
Absstract of: EP4723336A1
0001 The present invention relates to the technical field of power batteries, and particularly relates to a space-saving battery box and system. The battery box comprises a battery case, a liquid cooling interface, a high-voltage connector, a battery module, a busbar, and a quick-connection liquid cooling pipe; the battery module is located in the battery case; the battery module comprises a battery cell stack and a liquid cooling plate used for adjusting the temperature of the battery cell stack; the liquid cooling interface is located on the side wall of the battery case and is communicated with water nozzles of the liquid cooling plate by means of the quick-connection liquid cooling pipe located in the battery case; the high-voltage connector is located on the side wall of the battery case; and the high-voltage connector comprises a high-voltage positive electrode and a high-voltage negative electrode, and the high-voltage positive electrode and the high-voltage negative electrode are respectively communicated with a positive electrode and a negative electrode of the battery module by means of the busbar located in the battery case. The space-saving battery box provided by the present invention can be directly stacked layer by layer, and metal battery frames are omitted, so that the space of the battery system is greatly saved.
Absstract of: EP4723346A1
A pressure relief component, a battery cell, a battery and an electrical apparatus, belonging to the technical field of batteries. The pressure relief component includes a mounting member and a pressure relief valve plate; the mounting member is provided with an opening, the mounting member is provided with sinking recesses around a circumferential direction of the opening, and each sinking recess includes a recess bottom wall and a recess side wall; and the pressure relief valve plate covers the opening, and the pressure relief valve plate includes a body part and mounting parts, the body part being provided with weak areas, the mounting parts being connected to a periphery of the body part, and the mounting parts being bent to be supported on the recess bottom walls and being welded to the recess side walls.
Absstract of: EP4723230A1
A positive electrode material, a preparation method thereof, a positive electrode sheet, and a sodium-ion battery are provided. The positive electrode active material has a chemical formula of NaxAyNiaFebMncCudAeOn, where A is selected from at least one of Zn, Mg, Ca, K, and Li, and the following conditions are satisfied: (1) 0.67 ≤ x ≤ 0.85, 0.01 ≤ y ≤ 0.2, and x + y ≤ 1; (2) 0.11 ≤ a ≤ 0.33, 0.11 ≤ b ≤ 0.33, 0.33 ≤ c ≤ 0.66, 0.11 ≤ d < 0.33, 0 ≤ e ≤ 0.1, and a + b + c + d = 1; (3) n satisfies that an algebraic sum of positive and negative valences in the chemical formula equals zero; under same values of x, a, b, c, d, and n, a sodium layer spacing in an unit cell of the positive electrode active material is reduced by 0.005 Å - 0.115 Å compared to that of NaxNiaFebMncCudOn. The positive electrode active material exhibits high rate performance, excellent cycling stability, and high-voltage durability, etc., and thus a resulting sodium-ion battery has excellent performance.
Absstract of: EP4723224A1
The present application relates to the technical field of batteries, and in particular to a positive electrode material and a preparation method thereof, a positive electrode sheet, and a sodium-ion battery. The positive electrode material has a chemical general formula of NaaNibZncFedMneXfO2, where 0.85 ≤ a ≤ 1.1, 0.1 ≤ b ≤ 0.4, 0.05 ≤ c ≤ 0.4, 0.1 ≤ d ≤ 0.4, 0.1 ≤ e ≤ 0.5, 0 ≤ f ≤ 0.02, and X is at least one element selected from Ti, Al, Ta, Nb, Ge, Y, Nb, W, Zr, B, Ce, Ca, V, Si, Sr, Mg and Mo; and an X-ray diffraction pattern of the positive electrode material shows no diffraction peak in at least one of 2θ diffraction angle ranges of 31°-32° and 34°-35°. The present application can improve the problem of rapid degradation of the positive electrode material during cycling.
Absstract of: EP4722154A1
Disclosed are a single-layer edge-oxidized graphene and a preparation method therefor, which belong to the technical field of graphene materials. A single-layer graphene is used as a raw material and electrolyzed by applying an ultra-low-frequency alternating current with a low current density to prepare the single-layer edge-oxidized graphene. The number of oxygen free radicals generated from an electrolyte is regulated and controlled by adjusting the current intensity and frequency of the applied alternating current, a small number of oxygen free radicals are reacted at the sites having more active binding energy of the edge of the single-layer graphene, and the low current intensity and the short current time result in insufficient invasion of generated oxygen radicals into the plane of the single-layer graphene, thereby constructing the single-layer edge-oxidized graphene. The polarity of the prepared single-layer edge-oxidized graphene is increased on the basis of retaining the excellent physical and chemical properties of graphene, thereby greatly improving the dispersing capability of the graphene in polar solvents.
Nº publicación: EP4723202A1 08/04/2026
Applicant:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Absstract of: EP4723202A1
A secondary battery (5) and a manufacturing method therefor, and an electric device (6). The secondary battery (5) comprises a positive electrode sheet and a negative electrode sheet. The negative electrode sheet comprises a negative electrode active material layer. The negative electrode active material layer comprises a negative electrode active substance. The negative electrode active substance comprises a silicon-based material. In the same charging and discharging cycle process, the volume ratio of the negative electrode sheet during charging and discharging of the secondary battery (5) is R, wherein R is less than or equal to 1.5; and the volume ratio of the positive electrode sheet during charging and discharging of the secondary battery (5) is Y, wherein Y is less than or equal to 0.98.
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