94results about How to "Inhibit swelling" patented technology

The invention relates to a uniform carbon-coated mesoporous silicon carbon negative electrode material and a preparation method and application thereof.The preparation method comprises the steps that a product obtained after pyrolysis and carbonization of a biomass carbon source is subjected to alkali activation treatment, acid pickling, drying, smashing, passivation, water washing and drying are conducted to obtain a mesoporous carbon matrix, nanometer silicon particles are deposited in pores of the mesoporous carbon matrix, and the uniform carbon-coated mesoporous silicon carbon negative electrode material is obtained. Then selecting a low-temperature carbonization material and polyethylene glycol to perform pre-carbonization and complete carbonization treatment on the mesoporous silicon carbon material to obtain a carbon coating layer, and finally obtaining the uniform carbon-coated mesoporous silicon carbon negative electrode material. When the uniform carbon-coated mesoporous silicon carbon negative electrode material is applied to a lithium battery, the mesoporous skeleton can effectively inhibit volume expansion of silicon in a battery circulation process, and the uniform carbon-coated layer can effectively reduce the risk of direct contact between the negative electrode material and an electrolyte, so that a stable SE I film is formed to reduce the occurrence of side reactions; and the first coulombic efficiency and the cycle performance of the battery are further improved.

This disclosure relates to a battery and an electronic device, wherein the battery includes a negative electrode and a positive electrode. The negative electrode and the positive electrode are stacked. The positive electrode has multiple bent concave-convex structures. By providing multiple concave-convex structures on the positive electrode, the gap between the positive electrode and the negative electrode is increased, providing space for the expansion deformation of the negative electrode when it expands, thereby preventing the battery as a whole from expanding.

This invention belongs to the field of pressure sensors, specifically relating to an oil-filled core for a MEMS pressure sensor suitable for high-pressure, small-molecule media. It comprises a pressure ring, a corrugated diaphragm, a core base, sealing steel balls, and components such as silicone oil, a ceramic seat, a pressure chip, and leads located within a sealed cavity formed by the corrugated diaphragm and the core base. This invention addresses the shortcomings of traditional oil-filled cores for MEMS pressure sensors by improving the design in multiple structural and manufacturing aspects, solving problems such as small-molecule media infiltration, lead breakage failure, and high-pressure connection sealing. It is particularly suitable for accurate pressure measurement of high-pressure, small-molecule media.

The utility model relates to the technical field of battery manufacturing, and discloses an electrode assembly which comprises a first pole piece, a second pole piece, a first diaphragm, a second diaphragm and a supporting assembly, when the electrode assembly works, the battery cell body expands, and the first supporting layer attached to the inner wall surface of the accommodating space supports the battery cell body, so that expansion and displacement of the battery cell body towards the accommodating space are inhibited, interface contact is improved, and lithium precipitation is improved; the second supporting layer is arranged in the first supporting layer, and the elastic modulus of the second supporting layer is smaller than that of the first supporting layer, so that the first supporting layer can contract towards the interior of the first supporting layer under a relatively high pressure to adapt to relatively high expansion of the battery cell body, and interface contact is guaranteed; therefore, the normal use of the electrode assembly at the end of the battery cell circulation is ensured.

This utility model discloses a waterproof battery pack casing structure, including a housing and a cover. The housing has an opening at the top and an injection-molded bracket inside. The injection-molded bracket is located near the opening. Both ends of the injection-molded bracket have connecting frames, and the side of the connecting frame closest to the housing has a bearing flange. The cover is positioned above the housing, and both ends of the bottom have folded edges. The folded edges include an inclined portion and an extension portion. The inclined portion is angled towards the injection-molded bracket for contact and positioning with the housing. The top of the extension portion connects to the inclined portion and is located between the connecting frame and the cover. A glue injection groove is formed between the connecting frame, the bearing flange, the extension portion, and the inner wall of the housing, and adhesive silicone is placed in the glue injection groove. The cover can be directly inserted into the glue groove for fixed installation. The adhesive silicone has good elasticity, adhesion, and waterproof properties. After curing, the adhesive silicone can tightly bond with surrounding components, maintaining a good seal.

The invention discloses composite hydrogel containing azelaic acid and a preparation method of the composite hydrogel, and belongs to the technical field of skin medicines.The azelaic acid is loaded and free azelaic acid is fixed through a layered structure of Ca / LDH powder, and then polymerization modification is conducted through dodecyl methacrylate, so that the composite hydrogel can be firmly smeared on the skin and is prevented from being scoured by sweat, and the skin care effect is good. Moreover, the Ca / LDH powder has an ion exchange characteristic between layers, so that a slow release effect on azelaic acid can be achieved; encapsulated menthol exists in the composite hydrogel containing azelaic acid, the encapsulated menthol is used for clathrating menthol through the clathration of a chitosan / cyclodextrin encapsulation carrier, and after clathration of the chitosan / cyclodextrin encapsulation carrier, a compact crystal structure of the carrier and the cavity clathration of cyclodextrin form a double barrier, so that the composite hydrogel containing azelaic acid has a good barrier effect. Contact between menthol and outside air and temperature is isolated, and volatilization loss of menthol is greatly reduced.

This utility model discloses an intelligent cooling rotary valve, relating to the field of rotary valve technology. Its key technical features include a circulating cooling valve body connected to a condenser; a feeding impeller movably mounted inside the circulating cooling valve body; a positioning sealing cover screwed onto the right end of the circulating cooling valve body; an impeller rotation drive mechanism screwed onto the left end of the circulating cooling valve body; and a feed pipe fixedly connected to the upper middle of the circulating cooling valve body. The technical advantage is that the cooling medium from the condenser can be delivered to the circulating cooling valve body, effectively cooling its temperature. The circulating cooling valve body effectively reduces the temperature generated by the rotating feeding impeller, preventing expansion caused by excessive temperature. Furthermore, it avoids jamming during impeller rotation.

This application relates to the field of carbon source materials, and in particular to a composite carbon source for enhancing the denitrification capacity of activated sludge, its preparation method, and its application. The composite carbon source for enhancing the denitrification capacity of activated sludge, by weight, comprises: 45-60 parts of fast-acting carbon source, 10-15 parts of long-acting carbon source, 9-16 parts of synergist, 0.2-0.5 parts of activator, 4-8 parts of composite functional agent, and 20-25 parts of deionized water. This composite carbon source effectively promotes the denitrification start-up speed, provides a stable and continuous carbon source supply, effectively avoids the defects of traditional carbon sources such as excessive supply in the early stage and insufficient supply in the later stage, and ensures efficient operation of the entire denitrification process. It is safe and convenient to use, non-toxic, and poses no risk of combustion or explosion. Storage and addition are simple, significantly reducing on-site operational safety risks. The carbon release process is stable and controllable, and multiple slow-release mechanisms enable flexible regulation of the carbon source release rate to match the denitrification requirements under different operating conditions.

The invention provides a lithium metal composite negative electrode, a preparation method thereof and a solid-state battery. The lithium metal composite negative electrode is of a multi-layer structure and sequentially comprises a current collector, a buffer binding layer, an active substance layer and an interface enhancement layer, the buffer binding layer is a conductive buffer material layer, the active substance layer is a lithium metal and / or lithium alloy layer, and the interface enhancement layer is a lithium metal and / or lithium alloy layer. The interface enhancement layer is a layer which contains an MOFs material, a lithium salt and an organic polymer material and has a three-dimensional porous structure. In the interface enhancement layer, an organic polymer material improves the surface mechanical strength of the negative electrode, improves the ionic conductivity and inhibits lithium metal expansion; the MOFs has a three-dimensional porous structure and can store a large number of lithium ions, accelerate ion conduction, regulate and control uniform deposition of metal lithium on the surface of the negative electrode and effectively inhibit growth of lithium dendrites on the surface of the negative electrode. The interface enhancement layer improves the compatibility between the lithium metal and the solid electrolyte, reduces the generation of side reactions, improves the cycle performance of the metal lithium solid-state battery and prolongs the service life of the metal lithium solid-state battery.

This invention relates to the field of intelligent transformer technology, specifically to an intelligent transformer with protective functions, including a transformer main body, a pressure relief mounting component installed on the transformer main body, and a pressure relief device installed on the pressure relief mounting component; the pressure relief mounting component is used to detect the oil level; the pressure relief device is used to release air pressure; a moisture-absorbing component is installed on the pressure relief mounting component; a fin detection component is installed on the transformer main body; the fin detection component is used to monitor fin deformation; the pressure relief device can be used to release pressure in a timely manner when the insulating oil and air pressure inside the transformer main body rises, which can ensure the safe operation of the transformer main body. At the same time, this structure uses a float to monitor the insulating oil level, and in conjunction with a control switch, it can automatically control the oil discharge through the discharge solenoid valve, and the oil discharged by the discharge solenoid valve contains a large amount of sediment impurities.

The application discloses a steel slag and recycled asphalt mixture thin layer based on directional migration of aged asphalt and a preparation method thereof, and belongs to the technical field of road engineering materials. The application also discloses a steel slag adaptive migration induction composite recycling agent. The steel slag adaptive migration induction composite recycling agent is used for permeating and activating the surface aged asphalt of RAP, cooperating with the porous adsorption and interface induction of pretreated steel slag, realizing directional migration and reconstruction distribution of the aged asphalt from the surface of RAP aggregate to the interface of steel slag, significantly reducing the harm of aged asphalt inferior phase, strengthening the dominant role of new asphalt, and synchronously reducing the risk brought by the volume stability of steel slag. The application prepares the recycled asphalt mixture thin layer through RAP preheating, primary permeation and activation regeneration, secondary migration induction regeneration and mixture molding, the thin layer is excellent in low-temperature crack resistance, water stability and durability, can greatly improve the utilization rate of RAP and steel slag solid waste, and is suitable for asphalt pavement preventive maintenance, thin layer overlay and micro-surfacing engineering.

The application discloses a method for preparing direct reduced iron from iron-containing raw materials with near-zero carbon, and belongs to the technical field of steel metallurgy. The method comprises the following steps: uniformly mixing iron-containing raw materials, an organic-inorganic composite binder, biomass carbon and water, and then sequentially performing high-pressure forming and drying and solidification to obtain cold briquetting; and the cold briquetting is reduced by pure hydrogen to obtain direct reduced iron. The method can prepare cold briquetting suitable for the performance requirements of a shaft furnace for direct reduction at a relatively low temperature (<300 DEG C), and further prepares direct reduced iron by pure hydrogen reduction. The method has a short process flow, near-zero carbon emission, and provides a new technical route for the green and low-carbon transformation of the steel industry.

The application provides a pore-forming agent for lithium ion batteries and a preparation method thereof, which comprises a wall material preparation step, a core material preparation step, a W / O type initial milk preparation step and a pore-forming agent for lithium ion batteries preparation step. The pore-forming agent preparation method is a new pore-forming agent synthesis route, which has the advantages of simple reaction steps, mild reaction conditions, high yield, low cost and environmental protection. The technology can accurately construct a uniform multi-level pore network by introducing the pore-forming agent into the electrode, significantly reduces the charge transmission impedance, effectively improves the fast charging capacity and high-rate discharge performance of the battery, greatly improves the electrode-electrolyte interface contact, and ensures the full use of the active material. The application also provides an application of the pore-forming agent for lithium ion batteries to lithium ion batteries. The application of the pore-forming agent for lithium ion batteries to the lithium ion batteries can improve ion conduction and improve the rate performance.

The present disclosure provides a silicon-based anode electrode plate and a preparation method thereof, and a lithium-ion battery. The silicon-based anode electrode plate includes a porous current collector and a silicon containing material, the silicon containing material is attached to pores of the porous current collector, and the porous current collector is a porous carbon material. On the one hand, the use of the network structure of the porous carbon material itself greatly reduces the resistivity of the silicon-based anode electrode plate, thereby the toughness of the silicon-based anode electrode plate is enhanced, and the expansion of the silicon-based anode electrode plate is effectively prevented. On the other hand, the network structure of the porous carbon material itself covers the particle surface of the silicon carbon material and establishes the highly conductive, firm, and long-lasting connection between silicon particles. In addition, compared with a metal current collector, the porous carbon material has the advantages such as low density, low cost, and corrosion resistance. Therefore, the use of the porous carbon material as an anode current collector may reduce the content of a conductive agent in the silicon-based anode electrode plate, and increase the proportion of the silicon carbon material in the entire silicon-based anode electrode plate, the energy density of a battery cell is further improved.

This invention discloses a polymer antistatic wood-plastic composite flooring, relating to the field of wood-plastic composite flooring, comprising joists and wood-plastic composite panels. At least two joists and wood-plastic composite panels are provided, with the two joists arranged parallel to each other and the two wood-plastic composite panels slidably fitted onto the tops of the two joists. A connecting structure is provided on adjacent sides of the two wood-plastic composite panels. In practical operation, when the wood-plastic composite panels are installed outdoors, rainwater will enter the interior of the moisture-proof ring through the heat dissipation holes during rainy weather and drain out from both ends of the moisture-proof ring, reducing the accumulation and erosion of rainwater on the top of the wood-plastic composite panels, thus improving service life. The addition of multiple sets of heat dissipation holes increases the friction on the top of the wood-plastic composite panels, preventing slippage during rainy weather. Because rainwater drains quickly, it dries rapidly after the rain stops due to wind and temperature variations.

This utility model discloses a moisture-proof structure for soft capsules in PVC packaging, including a PVC outer shell, a blister pack at the upper end of the PVC outer shell, a base plate at the lower end of the PVC outer shell, protective components on the PVC outer shell to prevent moisture absorption of the medicine, a composite edge seal around the base plate, and a moisture-proof board on the upper surface of the base plate. This utility model achieves multi-level hierarchical control of the humidity inside the soft capsule packaging through a liner layer composed of a hydrophobic and breathable membrane and a moisture-absorbing material layer, a composite edge seal structure with an elastic sealing strip, and a double sealing system formed by an aluminum foil layer and a sealing ring, combined with the secondary moisture absorption function of the moisture-proof board. It effectively blocks the intrusion of external moisture, and also has good sealing performance and environmental adaptability. It can automatically compensate for the sealing gap under temperature change conditions, preventing the capsule from swelling, clumping, or becoming ineffective due to moisture absorption, and significantly improving the storage stability and packaging safety of soft capsules in high temperature and high humidity environments.

This utility model discloses a concrete pipe pile molding mold with a biodegradable release agent, belonging to the field of mold technology. It includes a shell with an upper plate at the top of its outer surface. A rotating wheel is inserted inside the shell, and a knob is installed at the top of the outer surface of the rotating wheel. A connecting block is sleeved inside the outer surface of the rotating wheel. The mold employs a precise temperature control system using heating wires, allowing the curing temperature to be set according to the concrete characteristics. This avoids gas expansion caused by high temperatures, reducing porosity at the source and ensuring a uniform and dense internal structure of the concrete. A vacuum pump at the top of the housing, along with valves and air pipes, actively extracts air from the pipe during concrete pouring, eliminating internal air bubbles and improving concrete density and waterproof sealing performance. Furthermore, the mold's wear-resistant protective layer and heat-insulating buffer layer effectively extend its service life and maintain stable curing temperature, providing a reliable guarantee for the production of high-performance concrete pipe piles.

The invention provides a metal / heteroatom co-doped silicon carbon negative electrode material as well as a preparation method and application thereof, and belongs to the technical field of lithium ion battery materials. The metal compound and heteroatoms are uniformly distributed on the porous carbon substrate in an in-situ growth doping manner, so that the electron conductivity of the material is improved, the diffusion rate of lithium ions in the material and on an interface is also improved, and the reaction kinetics of the silicon-carbon negative electrode material is further synergistically improved. Meanwhile, the prepared silane deposited silicon-carbon negative electrode material has good conductivity, high structural stability and long cycle life.

The utility model discloses a sanitary towel and cotton core double-blade two-cutting's roll pressure die cutting roller, including cooperation roll pressure die cutting finished product's upper roller structure, lower roller structure, upper roller structure includes cutter support roller body, is inlayed with cylindrical cutter on cutter support roller body surface, and cylindrical cutter is formed by a plurality of tile arc-shaped cutter butt joint, and lower roller structure includes the smooth surface pad cutting cutter of cylindrical, and cutter support roller body, tile arc-shaped cutter surface is respectively circumferentially provided with a plurality of upper roller air hole, and the smooth surface pad cutting cutter surface circumferentially sets a plurality of lower roller air hole, the utility model sets up air hole, can effectively reduce the accumulation of heat in the die cutting process, prevents the roller surface overheating, improves cooling effect simultaneously, and air hole makes cooling medium and compressed air circulation, more effective cooling roller surface, prevents the roller surface cutter expansion, adopts tile arc-shaped modular inlaying type joint blade common cutting and double-blade roller two-cutting's die cutting technology, has no interval between sanitary towel wing piece and piece, saves and reduces material cost.

The utility model discloses a reinforced battery shell and a lithium battery, and belongs to the technical field of lithium batteries, the reinforced battery shell comprises an explosion-proof hole, the explosion-proof hole penetrates through one side plate of the shell, the side plate comprises a first plane and a second plane which are oppositely arranged, and the second plane is arranged towards a battery cell; the second plane is provided with a reinforcing ring on the periphery of the explosion-proof hole, and the reinforcing ring protrudes in the direction away from the second plane; at least one air guide groove is formed in the reinforcing ring, and the air guide groove is communicated with the anti-explosion hole; and the second plane is provided with a plurality of reinforcing ribs on the outer side of the reinforcing ring. The protruding structure of the reinforcing ring can enable a gap to be reserved between the explosion-proof hole and the battery cell when the battery cell expands and displaces, the battery cell is prevented from blocking the explosion-proof hole, the gas release efficiency is guaranteed, and the gas guide groove can further guide gas from the interior of the shell to the explosion-proof hole to be released.

The utility model discloses a heat sealing assembly and an aluminum plastic packaging bag processing device, and relates to the technical field of packaging bag processing. The device comprises a shell, one side of the shell is open, a sliding plate is connected to the inner wall of the bottom of the shell in a sliding mode, a sealing plate is fixedly connected to the side, away from the shell, of the sliding plate, and a sealing gasket is bonded to the open side of the shell and used in cooperation with the sealing plate; and the vacuumizing mechanism is arranged at the bottom of the shell and used for reducing the pressure in the shell. According to the packaging bag heat sealing device, when heat sealing is conducted on a packaging bag, air in the shell can be extracted, negative pressure is formed in the shell, air in the packaging bag is reduced, the problem that the packaging bag expands due to heat change after hot pressing is avoided, meanwhile, the end of the packaging bag can be limited, the heat sealing quality is improved, the sliding frame can move, and the sliding frame is convenient to use. And packaging bags with different widths can be subjected to heat sealing, and the use flexibility is improved.

This invention discloses a drone device for building fire extinguishing and smoke dispersal, relating to the field of aviation equipment technology. It includes a drone body and a fire extinguisher canister for smoke dispersal and fire extinguishing. A gas delivery assembly is installed on the top of the drone body, including a sealed storage compartment. In this building fire extinguishing and smoke dispersal drone device, to reduce the load on the drone body during fire extinguishing, the fire extinguisher canister is first secured to an airbag with external straps. A mixture of nitrogen and helium, which has fire extinguishing and levitation effects, is then filled into the airbag. Multiple arc-shaped pushers extend the airbag into a boat shape, reducing wind resistance during levitation. The drone body can then be activated, carrying the fire extinguisher canister with the airbag, to extinguish fires and disperse smoke, utilizing the airbag's own buoyancy.

The application discloses an electrolyte and a battery. The electrolyte comprises an electrolyte, a solvent, a first additive and a second additive. The first additive is selected from at least one of structural formula (1) to structural formula (4), and the second additive is selected from at least one of structural formula (5) to structural formula (7). The first additive has high oxidation resistance, and contains an unsaturated double bond which can be polymerized to form an SEI protective film on a negative electrode. The protective film inhibits the volume expansion of the silicon negative electrode. The second additive can form a polymer film on the surface of a positive electrode under high voltage, which can improve the oxidation resistance of the electrolyte. Through the joint action of the first additive and the second additive, a stable film layer is formed on the surface of the electrode, the volume expansion of the electrode is inhibited, the interface on the surface of the electrode is prevented from being damaged by expansion stress, the contact between the electrolyte and the electrode material is blocked, the oxidation resistance of the electrolyte is improved, the performance stability of the battery under high voltage is improved, and the high-temperature storage and cycle performance of the battery are improved.

The invention provides a preparation method of a composite heterogeneous membrane, which comprises the following steps: firstly, sequentially dissolving zinc salt, 2-methylimidazole and crown ether in methanol, stirring to enable the zinc salt and the 2-methylimidazole to be subjected to coordination reaction to form a zeolite imidazole skeleton, and adsorbing the crown ether on the zeolite imidazole skeleton in situ to obtain crown ether modified zeolite imidazole skeleton particles; then, adding the graphene oxide dispersion liquid into a vacuum filtration system, and intercepting graphene oxide particles in the graphene oxide dispersion liquid by a filtration membrane in the vacuum filtration system under negative pressure to obtain a graphene oxide membrane; and adding an alcoholic solution containing the crown ether modified zeolite imidazole skeleton particles into a vacuum filtration system to intercept the crown ether modified zeolite imidazole skeleton particles on the surface of the graphene oxide membrane, and pouring phenolic resin to fix the crown ether modified zeolite imidazole skeleton particles, thereby obtaining the composite heterogeneous membrane. The invention further provides the composite heterogeneous film obtained according to the preparation method and application of the composite heterogeneous film.

The utility model relates to the technical field of packaging machine technical transformation, and discloses a PE bag packaging machine feeding structure which comprises a base, and a control table is installed on one side of the base. According to the feeding structure of the PE bag packaging machine, when a user conveys a PE bag to the next working procedure through the discharging conveying belt, the servo motor drives the grinding roller to grind the PE bag, air in the bag is effectively exhausted, the PE bag is kept flat in the conveying process, expansion or irregular shape caused by the air in the bag is avoided, and the packaging quality of the PE bag is improved. When the PE bags are conveyed to the front end of the conveying belt and conveyed into the transmission rotating disc along the inclined face, the rotating motor drives the transmission rotating disc to rotate, it is guaranteed that bag openings of the PE bags face forwards all the time, and the precise positioning operation provides stable preconditions for the subsequent bag opening and clamping procedures; and the stability and the reliability of the PE bag in each link are ensured.

This invention discloses a modified silicon-carbon composite material, an anode sheet, and a battery. The modified silicon-carbon composite material includes porous carbon, ring-patterned graphite nanoparticles, and silicon nanoparticles. The silicon nanoparticles are located within the pores of the porous carbon, and / or, within the pores of the ring-patterned graphite nanoparticles, and / or, in the pores between adjacent ring-patterned graphite nanoparticles. In the provided modified silicon-carbon anode material, the introduction of ring-patterned graphite nanoparticles into the porous carbon matrix improves conductivity through the ordered structure of the ring-patterned graphite nanoparticles, enhances ion conduction through the porous structure, and allows silicon to be deposited in the pores of the ring-patterned graphite nanoparticles, suppressing Si expansion and maximizing silicon capacity, thereby improving the conductivity, rate performance, and cycle performance of the silicon-carbon anode.

The present application relates to ion exchange membrane technical field, particularly to a kind of low swelling crosslinked poly (arylene-quininium salt) anion exchange membrane and preparation method thereof.Poly (arylene-quininium) polymer is dissolved in first organic solvent, and halogenated poly (arylene-alkylene) polymer is added as macromolecular ionization reagent, and quininium group in partially ionized poly (arylene-quininium) polymer is then added with excess small molecule ionization reagent to make quininium group completely ionized, to obtain crosslinked poly (arylene-quininium salt) polymer solution.The obtained crosslinked poly (arylene-quininium salt) polymer solution is added to first precipitant to obtain crosslinked poly (arylene-quininium salt) polymer powder, and it is dissolved in second organic solvent to obtain polymer solution, coated on homogeneous substrate or porous substrate, dried to obtain low swelling crosslinked poly (arylene-quininium salt) anion exchange membrane.The present application uses halogenated poly (arylene-alkylene) as macromolecular crosslinking agent to construct crosslinked network in poly (arylene-quininium salt) ion polymer, so that the obtained crosslinked poly (arylene-quininium salt) anion exchange membrane shows low swelling, high mechanical strength, high alkali resistance and outstanding gas barrier property.

The invention provides an inner ear infusion needle. The inner ear infusion needle comprises a puncture needle, an infusion tube, a first connecting seat and a second connecting seat, the front end of the infusion tube is fixedly connected with the puncture needle, and the rear end of the infusion tube is fixed in the first connecting seat; the second connecting seat is inserted into the first connecting seat and is in running fit with the first connecting seat; the second connecting seat is used for being connected with a medicine supply device, and a first sealing gasket is arranged between the second connecting seat and the first connecting seat; and the medicine supply device or the second connecting seat or the first connecting seat is provided with a connecting needle for puncturing the first sealing gasket. After the puncture needle is punctured into the inner ear, the problem that an infusion tube is twisted and wound due to angle adjustment of the puncture needle can be solved only by rotating the first connecting seat relative to the second connecting seat, so that the smoothness of subsequent administration can be ensured, and the risk that the puncture needle is separated from the inner ear is reduced.

This invention relates to the field of battery technology, specifically to a battery. The battery includes a casing and an electrode assembly, the electrode assembly being located within a receiving space formed by the casing. The casing includes a first through-hole, and the battery further includes a connecting mechanism connected to a first tab assembly, the connecting mechanism passing through the first through-hole. The connecting mechanism includes a conductive element and an insulating element, the conductive element being connected to the first tab assembly, and the insulating element being located between the casing and the conductive element. At least one of the interfaces between the conductive element and the insulating element and between the insulating element and the casing forms a bonding region. The bonding region includes a first surface of the conductive element facing the insulating element and / or a second surface of the casing facing the insulating element, the first surface and / or the second surface including a plurality of recesses, the orthographic projection of the insulating element covering the recesses, and the insulating element including protrusions embedded in the recesses. The battery of this invention is applicable to batteries of various thicknesses and can improve the sealing performance and connection strength of the connecting mechanism.

This application discloses a method for manufacturing a window and an electronic device including the window. The method for manufacturing a window includes: placing a substrate in a guide film that houses the substrate and is provided with an opening defined to extend through the guide film and overlap with a portion of the substrate in a plan view; providing a first solution comprising light-blocking particles and a polymer resin to an edge portion of an interior space of the guide film, wherein the interior space is divided into a central portion overlapping the opening in a plan view and an edge portion located outside the central portion; providing a second solution comprising the polymer resin to the central portion; placing a magnet to overlap with the edge portion in a plan view, such that the light-blocking particles are moved by means of the magnet; and using ultraviolet light to cure the light-blocking particles and the polymer resin to form a black matrix and a coating.