55results about How to "Rapid infiltration" patented technology

The present invention discloses a filler washing tower and a washing method, the filler washing tower is used for washing treatment of VOCs waste gas, and the filler washing tower comprises: a washing liquid pipe which is arranged at the axis position of the washing tower in a penetrating manner, vertically extends and is used for receiving a washing liquid from the outside of the tower; the washing liquid pipe is provided with a rotatable pipe section at the corresponding position of the filler layer; the spraying pipe assembly is composed of a plurality of spraying pipes with different lengths and is communicated with the rotatable pipe section, and a spraying opening of each spraying pipe is formed in the tail end of the pipe; the spraying pipes are arranged at intervals in the circumferential direction of the rotatable pipe section and are tangent to the rotatable pipe section; the spraying pipes with different lengths drive the rotatable pipe section to rotate through counter-acting force when spraying out the washing liquid, and annular partition covering of the washing liquid on the packing layer is formed. Rotation of the spraying pipe is achieved through spraying of washing liquid, and through annular partition covering of spraying, water saving can be achieved while the gas-liquid mass transfer efficiency is guaranteed, and external power consumption is not needed.

The invention relates to the technical field of battery diaphragms, in particular to a battery diaphragm, a preparation method thereof and a battery. The battery diaphragm comprises a base material and a coating on the surface of the base material, wherein the coating comprises a temperature-responsive component; wherein the temperature-responsive component comprises one or more of poly (N-alkyl acrylamide), poly (N-alkyl acrylate), poly (low polyethylene glycol) acrylate, polyvinyl ether and natural macromolecules. According to the invention, the continuous or discontinuous temperature-responsive coating is arranged to form the electrolyte storage bank, so that the stored electrolyte can be released under the action of temperature, the distance through which the electrolyte infiltrates is greatly shortened, the area near the coating material is rapidly infiltrated, the infiltrating of the roll core is accelerated, and a better infiltrating effect is realized.

The invention provides a battery diaphragm, a preparation method thereof and a battery. The first coating comprises a composite material, and the composite material comprises nano cellulose and a metal organic framework. According to the battery diaphragm provided by the invention, through the synergistic matching effect of the composite material in the first coating, the probability of thermal runaway is greatly reduced, the infiltration time is shortened, the liquid absorption rate is improved, the migration number of lithium ions is increased, and the migration rate of the lithium ions is improved; therefore, the safety performance, the dynamic performance and the cycle performance of the battery are obviously improved.

The invention provides styptic powder based on tannic acid modified gelatin as well as a preparation method and application of the styptic powder. The modified gelatin is a compound formed by chemically crosslinking and blending tannic acid and pre-crosslinked gelatin, the tannic acid can be uniformly distributed in a gelatin network, and the tannic acid serving as an exogenous hemostatic active substance can be subjected to rapid non-covalent interaction such as H bonds and pi-pi stacking with proteins in blood to form microclots; gelatin particles are promoted to rapidly infiltrate blood and settle, so that aggregation of platelets and red blood cells is accelerated, and gelatin can accelerate activation of an endogenous hemostasis pathway, so that a synergistic effect is formed, and rapid hemostasis is realized. In addition, tannic acid also has good antibacterial activity, wound infection after hemostasis can be effectively avoided, and the tannic acid is especially suitable for emergency hemostasis in outdoor first aid.

This invention discloses a special consumable for a double-layer cat litter box and its preparation and usage method, relating to the field of pet cleaning products technology. The invention's upper layer of cat litter and lower layer of absorbent and deodorizing granules, through synergistic design of formula and process, form a complete pet excrement treatment system. The upper layer of cat litter is responsible for trapping and encapsulating feces and draining urine, while the lower layer of absorbent and deodorizing granules is responsible for absorbing and treating odors generated by urine and feces. The combined use of these two layers achieves a highly efficient usage mode with automatic urine seepage, direct feces removal, no need for stirring the upper layer, and regular replacement of the lower layer. This significantly simplifies daily maintenance procedures, reduces the labor intensity of pet ownership, and significantly improves the user experience for family pet cat owners.

The present invention belongs to the field of medicine, and specifically relates to the application of advanced materials in tumor immune activators. The present invention provides a biodegradable light-triggered immune activator based on an M-MoS2@siRNA complex, comprising: a sheet-structured metal phase MoS2 substrate with photothermal response performance; an siRNA drug capable of reversing the tumor immune microenvironment; and the siRNA drug is assembled on the surface of the metal phase MoS2 substrate through non-covalent interactions. The present invention also provides a preparation method of the photothermal tumor immune activator and a method of using the photothermal tumor immune activator in tumor treatment drugs. The product of the present invention has good photothermal performance, excellent biodegradability, and a simple and efficient assembly method. The siRNA drug and the M-MoS2 photothermal response work together to reverse the tumor immunosuppressive microenvironment while killing tumor cells in photothermal therapy, greatly promoting the differentiation and infiltration of T cells, generating a powerful anti-cancer immune response, and achieving efficient inhibition of in situ tumors and distal tumors.

The utility model discloses a Mylar film structure for aluminum shell battery, aluminum shell battery and electronic product belong to battery technical field, including Mylar film body, Mylar film body includes first cladding piece, second cladding piece and the connecting cladding piece of first cladding piece and second cladding piece are connected respectively, recesses is formed in first cladding piece and is used to store the first liquid storage groove of electrolyte, recesses is formed in second cladding piece and is used to store the second liquid storage groove of electrolyte, first liquid storage groove and second liquid storage groove all are located on the side surface of battery roll core. The utility model reaches the technical effect of improving diffusion efficiency, and promotes the long -term cycle performance of battery.

The present application belongs to the field of battery material technology, and specifically relates to a dry high-load composite positive electrode sheet with gradient distribution and a preparation method thereof, wherein the conductive carbon material, multi-size oxide solid electrolyte particles, and positive electrode active material are pre-mixed and dispersed at high speed to obtain a first powder; a binder is added to the first powder, and a low-temperature and low-speed dispersion treatment is performed to obtain a second powder; the second powder is subjected to a heat preservation treatment to obtain a pre-fiberized second powder; the binder is fiberized and other components are uniformly dispersed to form a third powder; the third powder is subjected to a multi-stage hot rolling treatment to obtain a first electrode membrane; steps 1-5 are repeated to adjust the component ratio to prepare a second electrode membrane; the first and second electrode membranes and the carbon-coated aluminum foil current collector are stacked and rolled in sequence to obtain a high-load composite positive electrode sheet with gradient distribution. The present application realizes gradient distribution preparation, improves the lithium ion diffusion rate, uniform electric field distribution, improves the rate performance of thick electrodes and the adhesion of the electrode sheet, and prevents shedding.

The invention provides a method and a device for manufacturing an artificial graphite negative electrode material by adopting gas pressure difference to drive molten steel to infiltrate a porous carbon blank and realizing high-temperature inoculation and low-temperature inoculation, the molten steel with low carbon content and good wettability is adopted as a process medium, and the preheated porous carbon blank is fed into the molten steel; the preparation method comprises the following steps: carrying out high-temperature inoculation micro-dissolution treatment at the temperature of 1550-1750 DEG C, and carrying out cascade low-temperature inoculation treatment at the temperature of 1250-1450 DEG C after cooling, so as to improve the graphitization degree, improve the specific surface area and improve the SEI film forming uniformity. According to the present invention, the porous carbon blank in the piston can be rapidly and completely infiltrated by the molten steel, or the saturated molten iron can be extruded into the lower crucible from the treated porous carbon blank, the manufacturing energy consumption is low, the production time is short, the molten steel loss is low, and the obtained artificial graphite powder has characteristics of good quality consistency, high product gram volume and high first efficiency.

The invention relates to a battery secondary liquid injection formation method and a battery, and the battery secondary liquid injection method comprises the following steps: S1, providing a first electrolyte, carrying out primary liquid injection on the battery, and standing to obtain a primary liquid injection battery; the first electrolyte does not contain electrolyte salt; s2, providing a second electrolyte, carrying out secondary electrolyte injection on the battery after standing, and standing after vacuum sealing to complete a secondary electrolyte injection process; the second electrolyte comprises fluorobenzene and electrolyte salt; s3, formation is carried out; the liquid injection amount of the first liquid injection is m1, the liquid injection amount of the second liquid injection is m2, and m1 / m2 is larger than or equal to 0.1 and smaller than or equal to 1.5. According to the invention, the electrolyte is prepared into the first electrolyte free of electrolyte salt and the second electrolyte containing fluorobenzene and electrolyte salt in advance, secondary electrolyte injection is carried out, and by controlling the injection amount of the two times of electrolyte injection, not only can the overall infiltration time of the electrolyte injection process be obviously reduced, but also the cycle stability of the battery at normal temperature and high temperature can be effectively improved.

The application discloses a soft package sodium ion battery electrolyte infiltration method and relates to the technical field of lithium batteries, and has the beneficial effect that compared with the high-temperature standing / conventional standing of the traditional scheme, the application adopts the operation process of alternately rolling the battery soft package TD and MD directions under a certain pressure, makes the electrolyte quickly infiltrate the surface of the battery cell in the up-down and left-right directions in a large area, and then vibrates at a certain frequency and amplitude, so that the electrolyte fully penetrates into the core body corner position, the traditional electrolyte infiltration difficult area can be quickly infiltrated, the standing time is significantly reduced, and the infiltration effect is improved.

The utility model discloses a device for rapidly extracting traditional Chinese medicinal materials, which comprises a support frame, a first extraction tank, a second extraction tank and a second extraction tank, wherein the inner side of the support frame is provided with an extraction tank; a liquid supplementing mechanism is arranged at the upper part of the interior of the extraction tank, the liquid supplementing mechanism comprises a liquid supplementing valve, a liquid adding barrel, a pipeline, a water conveying frame and spray heads, the cross section of the water conveying frame is of a * structure, the spray heads are mounted below the water conveying frame at equal angles, and the pipeline is mounted at the right end of the water conveying frame. Sealing heads are mounted on the upper side and the lower side of the extraction tank. According to the device for rapidly extracting the traditional Chinese medicinal materials, loading and unloading are convenient, the medicinal materials can be rapidly infiltrated and swelled under the condition of negative pressure, the temperature during extraction of the medicinal materials is convenient to control, a solvent forcibly flows and exchanges among medicinal material tissues so as to rapidly replace effective components in the traditional Chinese medicinal materials, and the extraction solvent can rapidly reach the equilibrium concentration; and the damage to some heat-sensitive components can be reduced.

The utility model relates to the technical field of medical instruments, in particular to a sterile nursing suite for preventing exogenous infection, which comprises a nursing bag body, a plurality of medical articles for oral nursing are placed in the nursing bag body, the medical articles comprise oral nursing brushes, and each oral nursing brush comprises a brush head and a brush handle. A cleaning sponge is arranged on the brush head part, a cleaning channel and a negative pressure channel are arranged in the brush handle part, a plurality of liquid feeding pipes and a plurality of liquid sucking pipes are further arranged on the brush head part, a holding part is further arranged at the end part of the brush head part, and a pushing part and a negative pressure part are arranged in the holding part. The negative pressure channel can be used for absorbing redundant cleaning liquid in the cleaning sponge, so that the redundant cleaning liquid is prevented from flowing into the oral cavity of a patient, and the risk that the liquid chokes the trachea of the patient in the oral cavity nursing operation is reduced.

The invention discloses a high-temperature pressure formation process for a lithium ion capacitor in the technical field of preparation of lithium ion capacitors, which comprises the following steps: (1) charging a battery after liquid injection and standing for the first time, charging a battery core for the first time to 40% SOC (State of Charge), the pressure of the first charging being 3000-4000 N, the current being 0.02-0.1 C and the temperature being 30-40 DEG C; (2) carrying out secondary charging on the battery cell after the first charging to 60% SOC (State of Charge), wherein the pressure of the secondary charging is 1500-2500N, the current is 0.1-0.2 C, and the temperature is 30-40 DEG C; and (3) carrying out third-time charging on the battery cell after the secondary charging and charging to 80% SOC (State of Charge), wherein the pressure of the third-time charging is 500-1000N, the current is 0.2-0.4 C, and the temperature is 40-50 DEG C. The process can significantly improve the cycle life and rate capability of the lithium ion capacitor.

The invention relates to the technical field of disposable hygienic products, in particular to a one-way moisture conducting non-woven fabric containing high-activity probiotics, the one-way moisture conducting non-woven fabric sequentially comprises a film forming layer, a hydrophilic layer, a carding layer and a reverse osmosis layer, raw materials of the film forming layer comprise a dried high-activity probiotics coating, raw materials of the hydrophilic layer only comprise hydrophilic materials, the carding layer is made of hot-air non-woven fabric materials, and the reverse osmosis layer is made of hot-air non-woven fabric materials. Raw materials of the reverse osmosis layer simultaneously comprise a hydrophilic material and a hydrophobic material. The non-woven fabric has the characteristics of promoting rapid infiltration and efficiently preventing reverse osmosis, and can be applied to disposable hygienic products such as sanitary napkins, paper diapers, incontinence products, nursing pads and the like. The problems that a conventional non-woven fabric is slow in infiltration and poor in reverse osmosis prevention effect are solved.

The scheme discloses the technical field of lithium ion capacitor preparation, and relates to a lithium ion capacitor high-temperature pressure formation process, which comprises the following steps: (1) performing first charging on the battery after liquid injection and standing, charging the electric core to 40% SOC for the first time, the pressure of the first charging is 3000-4000N, the current is 0.02C-0.1C, and the temperature is 30-40 DEG C; (2) performing second charging on the electric core after the first charging and charging to 60% SOC, the pressure of the second charging is 1500-2500N, the current is 0.1C-0.2C, and the temperature is 30-40 DEG C; (3) performing third charging on the electric core after the second charging and charging to 80% SOC, the pressure of the third charging is 500-1000N, the current is 0.2C-0.4C, and the temperature is 40-50 DEG C. The process can significantly improve the cycle life and rate performance of the lithium ion capacitor.

The application discloses an asymmetric hybrid mesoporous material and a preparation method and application thereof, and belongs to the technical field of mesoporous materials; the preparation method comprises the following steps: taking a template agent, a pore expanding agent and an organic silicon source as the basis, combining SiO2 nanospheres and an organic silane capping agent to prepare superstructure silicon spheres; then, the superstructure silicon spheres are dispersed in an alcohol-water mixed solvent, dopamine hydrochloride is added, and in-situ polymerization is carried out under the action of ammonia water to obtain an asymmetric mesoporous material. The material has a high specific surface area and a rich hierarchical pore structure, and the mesoporous superstructure silicon sphere constructed by the SiO2 nanospheres is one end, and the polydopamine layer is the other end. The application has the advantages of simple process and mild conditions, and the material morphology and size can be controlled by adjusting reaction parameters. When the material is applied to a water-based zinc ion battery negative electrode, the specific capacity, cycle stability and rate performance of the battery can be significantly improved, the zinc dendrite growth and side reactions can be effectively inhibited, and the material has important energy storage application value.

The invention relates to the technical field of chopped strand mat processing, and discloses an inorganic fiber chopped strand mat and a preparation method thereof.The inorganic fiber chopped strand mat comprises a framework fiber web and fixing fiber webs covering the upper surface and the lower surface of the framework fiber web, and the framework fiber web and the fixing fiber webs are fixed into a mat through spunlace; the framework fiber web is formed by carding framework fibers or freely dispersing the framework fibers to form a web, the fixed fiber web is formed by carding fixed fibers, the framework fibers are inorganic fibers, and the fixed fibers comprise synthetic fibers and inorganic fibers. The problems that existing inorganic fiber chopped strand mat production is high in production cost, fibers are prone to falling and layering, and the environment is prone to being polluted when the fibers are used are solved.

The invention belongs to the field of medicines, and particularly relates to application of an advanced material in a tumor immune activator. The invention provides a biodegradable light-triggered immune activator based on an M-MoS2 (at) siRNA compound. The biodegradable light-triggered immune activator comprises a lamellar-structure metal phase MoS2 substrate with photo-thermal response performance, an M-MoS2 (at) siRNA compound and a light-triggered siRNA compound, a siRNA drug capable of reversing a tumor immune microenvironment; the siRNA drug is assembled on the surface of the metal phase MoS2 substrate through non-covalent interaction. The invention also provides a preparation method of the photo-thermal tumor immune activator and a use method of the photo-thermal tumor immune activator in tumor treatment drugs. The product is good in photo-thermal performance, excellent in biodegradability and simple and efficient in assembly mode, siRNA medicine and M-MoS2 photo-thermal response cooperate, the tumor immunosuppression microenvironment can be reversed while tumor cells are killed through a photo-thermal therapy, differentiation and infiltration of T cells are greatly promoted, a strong anti-cancer immune response is generated, and the anti-cancer effect is achieved. And efficient inhibition of in-situ tumors and far-end tumors is realized.

The application provides an electrolyte infiltration method. The electrolyte infiltration method comprises the following steps: S1, cooling a roasted battery cell; S2, placing the cooled lithium ion battery cell in a vacuum environment, and then introducing carbon dioxide gas; S3, introducing the battery cell into a liquid injection process, performing vacuum extraction treatment, and then performing liquid injection treatment; S4, pressure treatment; S5, vacuum extraction treatment; S6, repeating steps S4-S5 at least once; S7, introducing a protective gas to atmospheric pressure, adding a carbon dioxide additive to the battery cell after liquid injection, and obtaining an electrolyte-infiltrated battery cell. The electrolyte infiltration method provided by the application ensures that the electrolyte is fully infiltrated into the small pores inside the lithium ion battery, the infiltration time is short, high-temperature storage is not required, the production efficiency of the lithium ion battery is improved, and the electrochemical performance of the lithium ion battery is improved.

The utility model discloses a new dam apron in the technical field of water conservancy, including dam body, the water flow below of dam body is provided with apron main slope body, the both sides of apron main slope body are provided with the side waterfalls of a plurality of layers of layerwise under superimposed, the middle part of apron main slope body is provided with the intermediate waterfalls of a plurality of layers of layerwise downward superimposed, is provided with the buffer slope between intermediate waterfalls and below main river course, the left and right sides of apron main slope body all are provided with landscape footpath, the fishway is repaired between apron main slope body and one side bank, and the fishway communicates the water flow of dam body upstream and apron main slope body downstream. The utility model discloses form transverse turbulence through side dragon scale shape waterfalls, and the impact force of dispersion side wing water flow is protected bank base, and the central wave shape waterfalls longitudinal ladder type broken main stream, and cooperate end buffer slope energy dissipation. Special fishway connects dam body upstream and downstream, and guarantees fish migration channel, and restores aquatic ecological chain.

The invention relates to the technical field of ecological restoration, and particularly discloses a wave dissipation type lake and reservoir wetland ecological restoration method. The wave-resistant short dike is built at the bottom of the lakeshore levee slope and mainly plays a role in protecting the lakeshore and an aquatic plant planting area, and due to fluctuation of the water level, the wave-resistant short dike can intercept part of dry branches, fallen leaves and soil, can serve as a new plant recovery area and can also serve as a shelter and a habitat of aquatic organisms; the ecological restoration wetland area is established between the lakeshore levee slope and the wave-resistant short levee, different emergent aquatic plants and submerged plants are planted, the wetland structure is optimized, the wetland landscape is beautified, and the propaganda and education effects on tourists and surrounding people can be achieved; meanwhile, due to the fact that wind is heavy and waves are high in middle and large lakes and reservoirs, newly repaired embankments and wave-resistant short embankments are prone to being scoured by water waves and damaged, even the newly built embankments face the danger of being destroyed by water, and meanwhile various aquatic plants, aquatic plants and the like which are planted are destroyed, wind waves can be effectively reduced by building the steel column wave-resistant net.

This invention discloses a PVDF nanofiber membrane with an in-situ grown strong acid cation exchange layer, its preparation method, and its applications. The preparation method includes: electrospinning to prepare the PVDF nanofiber membrane; after surface activation, in-situ polymerization of a polymer containing sulfonic acid groups (such as polystyrene sulfonic acid) onto the fiber surface. This invention fixes the ion exchange layer to the fiber surface through chemical bonding, ensuring complete exposure of all sulfonic acid groups and eliminating the risk of detachment. The lipophilic segments in the grafted polymer chains significantly improve the wettability of the membrane to organic solvents (such as PGMEA and cyclohexanone), promoting rapid diffusion of metal ions to the exchange sites. When used in semiconductor photoresists or electronic-grade organic solvents, this membrane can deeply remove trace metal ions such as sodium, iron, copper, aluminum, and zinc to below 1 ppb, exhibiting advantages such as fast adsorption rate, high removal rate, and good cycle stability. It has broad application prospects in the field of ultrapure semiconductor wet electronic chemicals.

This invention provides a thick electrode, its preparation method, and its applications. The thick electrode includes a current collector and at least two electrode layers located on the surface of the current collector. An electrospun layer is disposed between the electrode layers. The active material in the electrode layer closer to the current collector surface is a large-particle-size active material, while the active material in the electrode layer farther from the current collector surface is a small-particle-size active material. This invention improves the electrode loading and thickness by designing at least two electrode layers and optimizing the particle size distribution of the main active material in each layer, thereby increasing the specific capacity and energy density of the battery. Simultaneously, the electrospun layer connects the electrode layers, creating a porosity gradient distribution along the direction perpendicular to the electrode, constructing efficient ion diffusion and conduction channels and electron transport channels. This results in good ion diffusion and conduction, reduces polarization during charging and discharging, and ensures high energy density and power performance of the battery.

The invention relates to a preparation method of a zinc electrode. The preparation method comprises the following steps: dissolving a water-soluble organic acid calcium salt in deionized water to obtain a first mixed solution; mixing the first mixed solution, an aqueous binder, a thickener and an active material including zinc oxide to prepare a negative electrode slurry; and coating the slurry on the surface of a current collector, and baking at high temperature to prepare the zinc electrode. The invention also relates to the zinc electrode prepared by the preparation method and application of the zinc electrode in an alkaline nickel-zinc battery. According to the prepared zinc electrode, deformation of the zinc electrode can be effectively improved, the growth problem of zinc dendrites is solved, the utilization rate of active substances of the zinc electrode can be increased, and the cycle performance of an alkaline nickel-zinc battery can be improved.

The invention relates to the technical field of lithium ion batteries, in particular to an electrolyte, a preparation method of the electrolyte, a liquid injection method of the electrolyte and a lithium ion battery. 70%-85% of a second electrolyte; wherein the first electrolyte comprises a first lithium salt, a first solvent and an additive, the second electrolyte comprises a second lithium salt and a second solvent, and the second solvent comprises at least one of an ether fluorinated solution and an alcohol fluorinated solution. Easily gasified and flammable organic solvents such as DMC (dimethyl orthocarbonate) and EMC (ethyl methyl carbonate) are replaced with the ether / alcohol fluorinated solution, so that the lithium ion battery has high safety performance when the electrolyte is applied to the lithium ion battery.

The invention relates to a composite current collector, a preparation method thereof and a battery, the composite current collector comprises a net-shaped substrate and a metal layer, and the metal layer covers one surface of the net-shaped substrate along the thickness direction and the inner walls of meshes of the net-shaped substrate; the net-shaped matrix is composed of nanofibers, and the nanofibers comprise a polymer, a polyoxometallate solid electrolyte and a conductive agent; the net-shaped base body comprises a main body part and an edge part, the edge part is located on at least one side of the main body part in the width direction of the net-shaped base body, and meshes of the edge part are filled with metal materials. Therefore, the mass energy density and the safety performance of the battery can be improved.

This utility model relates to the field of agricultural machinery technology, and in particular to a high-ridge rotary tillage and ridging machine, including a tractor, an adjustment component fixedly installed on the right end of the tractor, a ridging and pressing machine fixedly installed on the right end of the adjustment component, a water storage tank fixedly installed on the upper end of the ridging and pressing machine, a moisture-retaining component fixedly installed inside the water storage tank, a water inlet fixedly connected to the middle of the upper end of the water storage tank, and a sealing cover provided on the upper end of the water inlet. This high-ridge rotary tillage and ridging machine, with the driving force of a hydraulic cylinder, can drive an adjustment plate to achieve stable up and down movement. The up and down movement of the adjustment plate synchronously drives the ridging and pressing machine to complete the height adjustment. The machine can precisely adjust the working height of the ridging and pressing machine according to the differentiated requirements of different crops (such as vegetables and cash crops grown on high ridges) and the actual requirements of different soil textures (such as clay soil requiring slightly higher ridges for flood prevention) during ridging operations.

A liquid storage component and atomizing device for an atomizing apparatus are disclosed, relating to the field of aerosol technology. The liquid storage component includes: a liquid storage body, one end of which has a liquid outlet, and the other end of which has an opening; a cover, assembled on the liquid storage body and covering the opening; the cover and the liquid storage body enclose a liquid storage cavity for storing an atomizing matrix, the liquid storage cavity being in liquid communication with the liquid outlet, and the cover and the liquid storage body being relatively movable to reduce the volume of the liquid storage cavity, allowing the atomizing matrix in the liquid storage cavity to be pushed out of the liquid storage component through the liquid outlet. During use, the relative movement of the cover and the liquid storage body reduces the volume of the liquid storage cavity, allowing the atomizing matrix to be pushed out from the liquid outlet to wet the liquid storage component. This enables rapid wetting of the liquid storage component when it is first installed in the atomizing device, reducing the user's waiting time.

The invention discloses a high-wettability gradient aperture composite diaphragm and a preparation process thereof. The diaphragm comprises a polyolefin base membrane layer and a synthetic fiber web layer prepared by a spunlace process, the overall thickness of the diaphragm is 8-12 [mu] m, the aperture of one side facing the positive electrode is 30-50 nm, and the aperture of one side facing the negative electrode is 50-100 nm; and the synthetic fiber web layer contains a tannic acid modifier. The tannic acid modified synthetic fiber web layer in the composite diaphragm can provide better wettability for the composite diaphragm, and polar functional groups on the surface of the tannic acid modified synthetic fiber web layer can homogenize lithium ion flow, guide uniform deposition of lithium and inhibit generation of lithium dendrites. The polyolefin layer mainly provides mechanical strength, and forms a gradient aperture structure with the spunlace modified polyethylene layer, so that the uniformity of current density is improved, the uniform deposition of lithium is effectively induced, and the growth of lithium dendrites is reduced.