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1168
resultados
Última actualización
01/11/2026 [07:23:00]
Resultados 800 a 825 de 1168
Resumen de: WO2026218465A1
A porous ceramic matrix composite material having high electrochemical performance and a preparation method therefor. The porous ceramic matrix composite material comprises a porous ceramic composite material and a carbon coating layer coated on the outer surface of the porous ceramic composite material. The porous ceramic composite material comprises a porous ceramic matrix, a dispersed carbon layer dispersedly distributed on the outer surface and pore walls of the porous ceramic matrix, and a silicon nano-layer deposited on the dispersed carbon layer. The silicon nano-layer is composed of closely arranged nano-silicon grains. The average particle size of the nano-silicon grains ranges from 1 nm to 5 nm. The proportion of silicon in the porous ceramic matrix composite material ranges from 20 wt% to 70 wt%. The thickness of the dispersed carbon layer ranges from 1 nm to 20 nm. The porous ceramic matrix composite material is used for preparing a negative electrode sheet and, when applied to a lithium-ion battery, can improve the first-cycle Coulombic efficiency and safety performance of the lithium-ion battery.
Resumen de: US20260331725A1
0000 A secondary battery includes an electrode assembly enclosed within a housing formed by a first and a second packaging portion arranged opposite each other to define a space to accommodate the electrode assembly. The electrode assembly contains an electrode plate with a current collector. A plurality of protruding tabs are provided on one side of the current collector. Along the thickness direction of the battery, some of these tabs overlap and converge to form a connecting portion. This connecting portion consists of a first connecting section, a bent section, and a second connecting section. The bent section links the first and second sections and is bent along the battery's thickness direction, positioned near the first packaging portion. An electrode assembly fixing adhesive is provided between the electrode assembly and the first packaging portion, and is configured to bond the electrode assembly to the first packaging portion.
Resumen de: WO2026218543A1
The present application belongs to the field of batteries, and relates to a lithium secondary battery, a negative electrode sheet for a lithium secondary battery, and an electric apparatus. The lithium secondary battery in the present application comprises a negative electrode sheet, which comprises a negative-electrode current collector, a first negative-electrode active layer located on at least one side of the negative-electrode current collector, and a second negative-electrode active layer located on the side of the first negative-electrode active layer that is away from the negative-electrode current collector, wherein the first negative-electrode active layer and the second negative-electrode active layer each comprise a first negative-electrode material and a second negative-electrode material, and the first negative-electrode material and the second negative-electrode material each comprise a first graphite material and a second graphite material; a powder OI value of the second graphite material ranges from 1 to 10; the specific capacity and the powder compaction density at 150 MPa of the first negative-electrode material are greater than those of the second negative-electrode material; the specific capacity of the second negative-electrode material is 345-365 mAh/g; and the powder compaction density at 150 MPa of the first negative-electrode material is 1.70-2.10 g/cm3. In the present application, the high kinetic performance of a lithium secondary battery is ensur
Resumen de: US20260328628A1
The present invention discloses a system for monitoring battery surface temperature based on a dual-spiral optical fiber sensor, including a dual-spiral distributed (DSD) optical fiber being arranged flat on the surface of a battery and including a first spiral structure and a second spiral structure that are opposite in winding directions; the battery is divided into a left part with center A and a right part with center B based on a center point O of the battery, respectively; with point A as spiral starting point, a starting end of DSD optical fiber spirals outward along first direction for a set number of turns, to form first spiral structure; tail end of first spiral structure transitions through point O, spirals inward along second direction for a set number of turns, and then reaches point B as terminal end of the DSD optical fiber, to form the second spiral structure.
Resumen de: WO2026218420A1
The present application relates to the technical field of batteries, and discloses an energy storage system (100). The energy storage system (100) comprises a first compartment (20), a second compartment (30), a control module (40), and a plurality of battery devices (10). The first compartment (20) and the second compartment (30) are stacked in the height direction, the first compartment (20) is located above the second compartment (30), and the size of at least one of the first compartment (20) and the second compartment (30) in the height direction is smaller than the size of a standard container in the height direction. The control module (40) is configured to electrically control a plurality of battery devices in the first compartment (20) and the second compartment (30). In the length direction of a casing (11), electrode terminals (12) are provided at at least one end of the casing (11). The length of the casing (11) ranges from 465 mm to 525 mm, and/or the width of the casing (11) ranges from 49 mm to 60 mm, and/or the height of the casing (11) ranges from 163 mm to 184 mm. The energy storage system (100) has a high volumetric energy density.
Resumen de: US20260331733A1
0000 The present disclosure discloses a battery including a battery cell, a protection board, and a potting member, where the battery cell includes an electrode assembly and a film casing, and the battery cell has a top end surface and side end surfaces. The film casing is provided with a first groove and a second groove. The film casing is provided with a top sealing edge including a first straight portion and a first bent portion. The protection board is connected to a top end of the battery cell along a height direction, and the protection board includes a protection board body and a connecting terminal. The potting member covers an outer peripheral portion of the protection board and exposes at least a portion of a side surface of the protection board body on the same side as the shallow recessed surface.
Resumen de: AU2025232721A1
An example force-sensitive measuring device includes: a main body having a proximal end and a distal end; a frame coupled to the main body at the proximal end; a spring coupled between the main body and the frame; a sensor coupled to the main body; and a position sensor coupled to the proximal end of the main body, where, when the sensor touches a surface, the spring is compressed and the position sensor detects that the distal end of the main body is touching the surface.
Resumen de: WO2026218620A1
The present application relates to the technical field of nano-anode materials for lithium batteries, and specifically disclosed are a network-like silicon@tin disulfide@carbon anode material, a preparation method therefor, and use thereof. The preparation method for a network-like silicon@tin disulfide@carbon anode material comprises: stirring and mixing soluble organosilicon, sodium hydroxide, and deionized water; then adding ethanol, and stirring and mixing to obtain a reaction solution; post-treating the reaction solution to obtain three-dimensional aerogel network-like silica; calcining the three-dimensional aerogel network-like silica with a reducing agent to obtain network-like silicon; mixing the network-like silicon, a tin salt, and oleylamine, then first adding thiol, and then stirring and mixing at 180-200 °C to obtain a reaction solution; and post-treating the reaction solution to obtain the network-like silicon@tin disulfide@carbon anode material. In the present application, by means of double-layer coating of the network-like silicon, the inner core can be protected from external chemical attack, the reactive active sites are increased, and the silicon content is reduced, thereby improving the electrochemical performance of the material.
Resumen de: WO2026219101A1
A top-cover assembly (100), a battery (200), and an electricity-consumption device (300) are provided. The top-cover assembly (100) includes a lower plastic member (30), a first terminal-post (41), and a first connecting sheet (50) extending linearly in a width direction of the top-cover assembly (100). The lower plastic member (30) includes a lower-plastic-member body (31). The lower-plastic-member body (31) defines a first through-hole (313) extending through the lower-plastic-member body (31) and allowing for the first terminal-post (41) to pass through. The first connecting sheet (50) is connected to the first terminal-post (41). The first connecting sheet (50) is configured to be welded to a first tab of an electrode assembly (220), to enable the first terminal-post (41) to be electrically connected to the electrode assembly (220) through the first connecting sheet (50). The first connecting sheet (50) is stacked with the lower-plastic-member body (31). A centerline (O1) of the first connecting sheet (50) in a length direction of the top-cover assembly (100) is offset from a centerline (O2) of the first terminal-post (41).
Resumen de: WO2026218607A1
The present disclosure relates to the field of lithium ion batteries, and in particular, to an integrated battery and a battery safety protection method. The integrated battery of the present disclosure includes: a steel shell provided with a mounting cavity and a protective cavity therein; a sealing ring mounted in the protective cavity of the steel shell; a winding core mounted in the mounting cavity; wherein the winding core is connected to a positive electrode tab and a negative electrode tab, and the negative electrode tab is electrically connected to the negative electrode; a metal ring electrically connected to the positive electrode tab.
Resumen de: WO2026219402A1
Provided in the present invention are an asymmetric solid-state electrolyte membrane, a preparation method therefor, and a use thereof in a battery. The asymmetric solid-state electrolyte membrane comprises: a base membrane, a first coating layer, and a second coating layer, wherein the base membrane has a first surface and a second surface, the second surface is opposite to the first surface, the first coating layer is formed on the first surface of the base membrane and comprises lithium titanium aluminium phosphate, and the second coating layer is formed on the second surface of the base membrane and comprises a solid-state electrolyte material other than lithium titanium aluminium phosphate. By selecting a solid-state electrolyte that is stable at the negative electrode for coating, the problem of LATP degrading the performance of the negative electrode is solved, improving the overall performance of the membrane, and the coating process is compatible with existing production lines without the need for great modification.
Resumen de: WO2026218609A1
The present invention relates to a silicon-carbon composite material, and a preparation method therefor and the use thereof. The preparation method comprises: subjecting a porous graphite raw material to acid pickling and smashing to obtain pretreated porous graphite; subjecting same to vacuum impregnation with a carbon precursor solution, performing centrifugal separation, and then performing a carbonization treatment to fill pores of the porous graphite with carbides; then performing physical activation to form pores in the carbides so as to form a hierarchical pore structure, thereby obtaining a silicon-carbon composite material; performing silicon deposition in a fluidized bed to obtain a uniform nanosilicon layer; and then performing a carbon coating treatment, so as to obtain a silicon-carbon composite material. In the present invention, by using the graphite having relatively low costs as a matrix and by means of the design of a hierarchical pore structure, carbonization-activation synergistic pore formation and the optimization of an interface deposition process, high capacity and long cycle performance of the graphite-based silicon-carbon negative electrode material are achieved, and the graphite-based silicon-carbon negative electrode material is applicable to the fields of power batteries and high-energy-density energy storage, especially the field of lithium-ion batteries, and can reduce the expansion rate of a battery and improve the specific capacity, cycling st
Resumen de: WO2026218477A1
The present disclosure relates to the technical field of lithium-ion batteries, and in particular to a long-cycle positive electrode material, a preparation method therefor, and a lithium-ion battery. The long-cycle positive electrode material comprises secondary particles formed by accumulating primary particles, and the positive electrode material satisfies the following relational expression (I): α+1000×β-(D/80)1/2≤1.2(I), wherein α is the long-axis particle size distribution ratio, which refers to a relationship among long-axis particle size distribution D10, D50 and D90 of the primary particles, and satisfies the following relational expression (II): α=(D90-D10)/D50(II), wherein β is the microstrain of the positive electrode material, and D is the grain size of the positive electrode material in the unit of nm. By means of coordinated regulation and control, the present disclosure allows the grain size, the size of the primary particles, and the microstrain to satisfy the specific relational expressions, thus inhibiting particle cracking, alleviating structural degradation, and improving the cycle performance of the positive electrode material.
Resumen de: WO2026219316A1
A lithium-ion battery. The battery comprises a positive electrode sheet and a negative electrode sheet; the positive electrode sheet comprises a positive electrode active material layer, and the modal pore diameter r1 of the positive electrode sheet is 50-90 nm; the negative electrode sheet comprises a negative electrode active material layer, and the modal pore diameter r2 of the negative electrode sheet is 900-1500 nm.
Resumen de: WO2026218399A1
Provided in the present application is an energy storage system. The energy storage system comprises a plurality of battery devices, a first compartment, a second compartment, a control module, a thermal management module and a converter device. The battery devices are accommodated in both the first compartment and the second compartment, the first compartment is located above the second compartment, and the dimension of at least one of the first compartment and the second compartment in the height direction is smaller than the dimension of a standard container in the height direction. The first compartment and the second compartment accommodate the control module and the thermal management module. The converter device is located outside the first compartment and the second compartment, and the converter device is electrically connected to the battery devices. Each battery device comprises battery cells, each of which comprises a casing and electrode terminals, wherein the width of the casing and the height of the casing are both smaller than the length of the casing, a plurality of battery cells are arranged in the width direction of the casing, and the electrode terminals are arranged on at least one end of the casing in the length direction of the casing. Such an energy storage system can have a high space utilization rate, thereby increasing the volumetric energy density of the energy storage system.
Resumen de: US20260331608A1
Back-contact solar cell includes first polarity doped layers and second polarity doped layers, stacked on back surface of a silicon substrate, arranged at intervals in a first direction, and extending in a second direction; first fine gates on the first polarity doped layers and second fine gates on the second polarity doped layers; and in the second direction, third polarity doped layers disposed below the first fine gates, and located between back-surface passivation film (BSPF) layers and the first polarity doped layers. At positions corresponding to the third polarity doped layers, the first fine gates are in contact with the third polarity doped layers through the BSPF layers. Between adjacent third polarity doped layers, the first fine gates are in contact with the first polarity doped layers through the BSPF layers. The second fine gates at least partially penetrate through the BSPF layers to contact the second polarity doped layers.
Resumen de: WO2026218423A1
The present disclosure relates to the technical field of lithium batteries, and discloses a modified ternary positive electrode material, a preparation method therefor, a positive electrode sheet, and a lithium battery. The modified ternary positive electrode material provided by the present disclosure has a dual coating layer, wherein an inner layer is coated with Li2ZrO3, an outer layer is coated with AlPO4, and the Li2ZrO3 of the inner layer is a fast lithium-ion conductor, which improves lithium-ion interfacial kinetics and improves rate performance of the ternary positive electrode material; the AlPO4 of the outer layer, by means of strong covalent interaction between PO4 3- and Al3+, allows for effective resistance against electrolyte corrosion, thereby reducing the occurrence of surface side reactions. Moreover, an AlPO4 coating layer with good thermal stability also improves thermal stability of the ternary positive electrode material. Therefore, the modified ternary positive electrode material provided by the present disclosure can simultaneously improve particle surface stability and conductivity, which is beneficial to simultaneously improving ternary material rate performance and cycle stability.
Resumen de: WO2026219275A1
A modified binder and a preparation method therefor, an electrolyte membrane, a solid-state battery, a battery pack, and an electric device. The modified binder is one or more of nitrile rubber derivatives; and the molecular side chains of the modified binder include carboxyl groups and ammonium groups.
Resumen de: US20260331460A1
Provided are a positive electrode material, a method for preparing the positive electrode material, a positive electrode plate, a battery, and an electric device. The positive electrode material includes an inner core and a shell coating the inner core, the inner core and the shell each include primary particles, most of the primary particles in the inner core are distributed in the radial direction of the inner core, and the distribution of most of the primary particles in the shell is different from the radial distribution in the inner core. The particle strength of the positive electrode material is improved, thereby improving the cycle life, high-temperature storage performance, and energy density of the battery.
Resumen de: WO2026219267A1
A positive electrode sheet, a battery, a battery pack, and an electric device. The positive electrode sheet comprises a positive electrode current collector, and a first positive electrode active layer and a second positive electrode active layer stacked on at least one side of the positive electrode current collector, wherein the first positive electrode active layer comprises a first positive electrode active material, and the second positive electrode active layer comprises the first positive electrode active material and a second positive electrode active material; the first positive electrode active material comprises at least one of a manganese-based positive electrode active material, an iron-based positive electrode active material and a manganese-iron mixed positive electrode active material; the second positive electrode active material comprises at least one of a ternary positive electrode active material, lithium cobalt oxides, lithium nickel oxides and lithium titanium oxides; and the second positive electrode active layer further comprises a second conductive agent, and the second conductive agent comprises at least two linear conductive agents, and at least one of a sheet-shaped conductive agent and a dot-shaped conductive agent. The positive electrode sheet has a special structure and composition, and thus can effectively ameliorate the impedance growth of a battery and improve the cycle performance thereof.
Resumen de: US20260326569A1
A vehicle includes a chassis, a tractive element coupled to the chassis, a cab coupled to the chassis and configured to support an operator, a body coupled to the chassis and offset longitudinally rearward from the cab, such that a volume is defined between the cab and the body, an electric motor configured to drive the tractive element to propel the vehicle, a secondary electrical load, a battery configured to supply electrical energy, and a power distribution unit configured to direct the electrical energy from the battery to the electric motor and the secondary electrical load. The power distribution unit is positioned in the volume defined between the cab and the body.
Resumen de: US20260331690A1
an all-solid-state rechargeable battery according to an embodiment may include an all-solid-state cell including a positive electrode, a negative electrode, and a solid electrolyte layer, an all-solid-state case configured to contain the all-solid-state cell, a pair of fluid-containing members containing a fluid for pressurizing the all-solid-state cell, and in contact with an interior surface of the all-solid-state case, an inlet/outlet valve configured to introduce the fluid into an interior of the fluid-containing member and discharge, and a fluid supply unit connected to the inlet/outlet valve, and configured to supply the fluid to the fluid-containing member.
Resumen de: US20260330621A1
0000 A detection method and apparatus for battery housing, a device, a medium, and a product. The method includes: obtaining a first image of a first corner of a battery housing, where the first corner is a rounded corner; extracting a target edge contour of a curved portion of the first corner in the first image; performing curve fitting based on a feature point of the target edge contour to obtain a target curve; and determining whether burrs are present on the first corner based on the target curve.
Resumen de: WO2026218794A1
A positive electrode composite material, a positive electrode sheet, a battery, a battery pack, and an electric device. The positive electrode composite material comprises a positive electrode active material and a shell layer present on at least part of the surface of the positive electrode active material. The shell layer comprises carbon nanotubes. The average tube diameter of the carbon nanotubes is less than or equal to 100 nm.
Nº publicación: WO2026219148A1 22/10/2026
Solicitante:
BYD CO LIMITED [CN]
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Resumen de: WO2026219148A1
Provided in the present application are a battery separator, a battery, and an electric device. The battery separator comprises a base membrane and a polymer adhesive material arranged on at least one side of the surfaces of the base membrane. The swelling rate of the polymer adhesive material in an electrolyte is less than 15%.
BOPI
Sede Electrónica
