162 results about "Porous coating" patented technology

Provided is a method for determining the adhesive penetration into at least one porous coating material which is pressed with at least one carrier plate and at least one adhesive layer arranged on the carrier plate. The adhesive penetrates or rises into the at least one porous coating material during the pressing process.

Provided is a method for determining the resin penetration into at least one porous coating material which is pressed with at least one carrier board and at least one resin layer arranged on the carrier board. During the pressing process the resin penetrates or rises into the at least one porous coating material.

Battery cell, including: a case; and an electrode assembly located inside the housing, wherein the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator film, the separator film being arranged between the positive and the negative electrode plates, where The negative electrode plate comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector. The negative electrode film layer comprises an active material of the negative electrode. The negative electrode film layer comprises a first negative electrode film layer located away from the negative electrode current collector and a second negative electrode film layer located near the negative electrode current collector. The first negative electrode film layer comprises a first active material of the negative electrode, and the second negative electrode film layer comprises a second active material of the negative electrode.The first active material of the negative electrode contains a silicon-based material and a carbon-based material, the second active material of the negative electrode contains a carbon-based material, and the mass fraction of the silicon element in the negative electrode film layer is 0.5% to 6%. The separator film comprises a base film, a first porous coating on the side of the base film facing the negative electrode plate, and a second porous coating on the side of the base film facing the positive electrode plate. Both the first and second porous coatings contain filler particles.

Provided is a method for determining the resin penetration into at least one porous coating material which is pressed with at least one carrier board and at least one resin layer arranged on the carrier board. During the pressing process the resin penetrates or rises into the at least one porous coating material.

The invention provides a diaphragm, an electrochemical device and an electronic device, and relates to the technical field of electrochemical energy storage, the diaphragm is used for the electrochemical device, the diaphragm comprises a base membrane and a porous coating arranged on at least one side of the base membrane, and the porous coating comprises graphene oxide; the lamellar thickness of the graphene oxide is a nm, the volume particle size Dv50 of the graphene oxide is z [mu] m, and z / a is greater than or equal to 1000 and less than or equal to 6000. The diaphragm provided by the invention has good thermal stability and ion transmission effect, so that the risk of lithium precipitation is effectively reduced.

The present application belongs to the field of biomedical materials and computer aided design technology, and discloses a kind of porosity gradient adjustable hip joint prosthesis porous coating topological optimization method.The present application is aimed at solving the problems of existing design, such as unadjustable porosity distribution, gradient mutation, difficult to balance mechanical properties and bone integration, and the gap between topological optimization and manufacturing constraints.The method introduces nonlinear porosity gradient constraints and adaptive optimization mechanism in the process of topological optimization through the steps of geometric modeling and boundary condition definition, nonlinear porosity gradient field generation, finite element analysis, sensitivity analysis, density filtering and porosity constraint processing, optimization criterion updating and convergence judgment, and realizes the smooth transition of porosity from the core to the surface of the prosthesis.The present application can optimize the mechanical support and biological integration performance simultaneously, eliminate non-manufacturable structures, and adjust the gradient parameters and modularize the extension, providing an efficient and reliable calculation method for personalized hip joint prosthesis design, and having significant engineering and clinical application value.

The application provides a battery monomer, a battery device and a power utilization device. The battery monomer comprises a shell and an electrode assembly arranged in the shell. The electrode assembly comprises a positive electrode sheet, a negative electrode sheet and a separator. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative electrode current collector. The separator is arranged between the positive electrode sheet and the negative electrode sheet. The separator comprises a base film and a porous coating layer arranged on one side of the base film. The shell is provided with a liquid injection hole. The liquid injection hole is arranged on one side of the electrode assembly in the height direction of the battery monomer. In the height direction of the battery monomer, at least one end of the porous coating layer is arranged beyond the negative electrode active material layer. In the embodiment of the application, the risk of local insufficient immersion of the positive electrode sheet and the negative electrode sheet in the height direction is reduced, the electrolyte distribution uniformity of the electrode assembly in the height direction is improved, the risk of lithium precipitation is reduced, and the use reliability of the battery monomer is improved.

The invention discloses a current collector with a gradient conductive porous coating and a preparation method and application thereof, and relates to the technical field of battery materials. The current collector comprises a base material and a gradient conductive porous coating coated on the surface of the base material; wherein the gradient conductive porous coating comprises two different carbon materials and sodium-philic metals with different particle sizes. When the current collector is applied to the negative-electrode-free sodium metal battery, the conductive gradient formed by different carbon materials improves the migration of ions from electrolyte to the current collector and the particle size induced gradient formed by sodium-philic metals with different particle sizes promotes the fluoride-based electrolyte to penetrate into the current collector to form F-rich inorganic SEI, so that the stability of the battery in the cycle process is ensured. The porous structure of the current collector can alleviate gas expansion generated by sodium deposition and adsorb gas generated in the cyclic storage process, so that the safety risk is reduced, and the cycle life of the battery is further prolonged.

The present invention relates to an electrode assembly and an electrochemical device including the same. The electrode assembly of the present invention comprises a unit electrode and a strip-shaped separator. The separator is folded in a zigzag manner, and the unit electrode is inserted into the portion where the separator overlaps. The separator comprises a porous substrate made of a polymer material and a porous coating layer formed on the upper and lower surfaces of the porous substrate, each containing inorganic particles. The thickness (Ts) of the porous substrate gradually decreases from the center of the separator in the longitudinal direction toward both ends, the total thickness (Tc) of the porous coating layer gradually increases toward both ends, and the total thickness (Ts+Tc) is maintained constant across the entire surface of the separator.

The present invention relates to a portable perfume device for both application and bubble fragrance emission, and more particularly, to a portable perfume device for both application and bubble fragrance emission, which can improve the problems existing in the prior art, can directly use the original perfume without changing the dosage form of the perfume, has a replenishable and replaceable structure, and can generate fragrance bubbles in a form that fits the skin, thereby improving the application and bubble fragrance emission of the perfume. Therefore, the coating performance of the perfume is optimized. According to the portable perfume device, the liquid perfume can be coated on the surface of a human body, and fragrance bubbles can be generated on the surface of the human body for smelling, so that the portable perfume device with the functions of coating and bubble fragrance diffusion is provided. According to one embodiment of the present invention, the portable perfume device for both application and air bubble fragrance diffusion is a device capable of being applied to a surface or carrying fragrance through air bubbles and diffusing the fragrance. The portable perfume device comprises: a perfume accommodating part for accommodating liquid perfume; a flow path supporting member which is communicated with one side of the perfume accommodating part; the water pump is arranged in the flow path supporting piece and is used for pumping the liquid perfume; the nozzle is connected with one end of the water pump; a spraying part which is communicated with the nozzle and forms a spraying port; a connecting piece connecting the upper part of the flow path support and the lower part of the ejection part, and having a connecting space formed therein; a porous coating part which is fixed to one end of the ejection part, is provided at a distance from the ejection port, and forms a retention space; an air pump which covers the outside of the flow path support member, forms an air space, and is used for pumping air; and the detachable cover body shell and the coating part are arranged at intervals, and the detachable cover body shell covers the flow path supporting piece along the peripheral surface of the air pump.

A method for creating oil-filled porous anodic oxide coatings for stainless steel is disclosed. The coating has anti-corrosion and omniphobic properties to resist both atmospheric conditions, or other conditions with exposure to vapor, and wet conditions, in which the coating is exposed to and / or immersed in liquid. The anodic oxide coating of the present invention can be made by the steps of cleaning and / or electropolishing a steel substrate, applying anodic oxidation to the steel substrate, washing the steel substrate in an organic solvent, and annealing the substrate at high temperature. To fill the porous coating with an oil, a solvent exchange method may be applied.

The invention discloses a coating material with wear resistance and self-lubricating performance as well as a preparation method and application of the coating material. The method comprises the following steps: mixing wear-resistant metal-based powder with high-temperature gas-producing high-molecular organic matter powder to obtain coated composite powder; spraying the coated composite powder onto a base material by using a plasma spraying technology to obtain a coating with a porous structure; and immersing the coating with the porous structure into a suspension containing a self-lubricating two-dimensional material, and depositing the two-dimensional self-lubricating material into the porous structure under the action of ultrasonic treatment to obtain the coating material with both wear resistance and self-lubricating performance. A porous wear-resistant framework is constructed through plasma spraying, the porous coating is obtained, and the two-dimensional self-lubricating material is embedded into pores of the porous coating by combining an ultrasonic deposition technology, so that the coating has the characteristics of high bearing capacity and low friction at the same time. The technology can effectively solve the problems that a traditional wear-resistant coating is high in friction coefficient and a self-lubricating coating is insufficient in wear resistance.

The invention discloses a production process of a fully-coated wire mesh for a water electrolysis hydrogen electrode, and relates to the technical field of manufacturing of wire meshes for water electrolysis hydrogen electrodes, and the production process comprises the following steps: S1, providing a wire mesh, hydrosol, sand grains and aluminum-containing nickel-based alloy powder; s2, mixing hydrosol and sand grains to form a gel-sand mixture, coating the surface of the metal wire mesh with the gel-sand mixture, blocking meshes of the metal wire mesh, and performing drying and curing; s3, sand blasting or polishing treatment is carried out, the metal surface is exposed, and aluminum-containing nickel-based alloy powder is sprayed to the surface of the metal wire mesh through a thermal spraying technology; s4, the metal wire mesh is immersed in water, hydrosol is dissolved, sand grains fall off, drying and curing are conducted after washing, and then the metal wire mesh is immersed in alkali liquor to dissolve aluminum in the coating; and S5, sintering the metal wire mesh to obtain the metal wire mesh. The porous coating can be fully covered on the silk screen holes, and the contact area of the thermal spraying silk screen and electrolyzed water is obviously increased, so that the catalytic effect and the productivity of hydrogen production through water electrolysis are obviously improved.

The invention provides an isolating membrane and a preparation method thereof, a secondary battery monomer, a battery device and a power utilization device, the isolating membrane comprises a porous base membrane and a porous coating located on at least one side of the porous base membrane, the porous coating comprises phenolic resin organic particles and a fibrous material, and at least part of the phenolic resin organic particles are positioned among the fibrous materials. The isolating membrane is used in the secondary battery monomer, so that the secondary battery monomer has high mass energy density and high reliability.

The present disclosure relates to a coating rod and a method for manufacturing a separator using the same. The coating rod according to the present disclosure can form a coating layer having regions of different thicknesses by one coating. In addition, the method for manufacturing a separator according to the present disclosure includes forming a porous coating layer using a predetermined coating rod to manufacture a separator including a porous coating layer having regions of different thicknesses. Specifically, the present disclosure manufactures a separator having a greater thickness at both ends than at the center, thereby avoiding insufficient adhesion strength at both ends in a lateral direction in adhesion between the separator and an electrode and exhibiting uniform adhesion strength across the entire interface between the separator and the electrode.

A separator for a lithium secondary battery, includes: a porous polymer substrate; and a porous coating layer formed on at least one surface of the porous polymer substrate, the porous coating layer including inorganic particles and a binder polymer. The inorganic particles include surface-modified calcium carbonate (CaCO3). The surface-modified calcium carbonate includes first surface-modified calcium carbonate, second surface-modified calcium carbonate, or a combination thereof. The first surface-modified calcium carbonate includes first calcium carbonate; and a fatty acid-derived functional group chemically bonded to a surface of the first calcium carbonate. The second surface-modified calcium carbonate includes second calcium carbonate; and an organosilane-derived functional group chemically bonded to a surface of the second calcium carbonate.

This invention discloses a synergistic modification method for improving the CO2 decomposition performance of ceramic membrane reactors. By preparing a dense membrane substrate containing fluorite and B-site-doped perovskite phases, and constructing an A-site-defect perovskite porous coating on the CO2 feed side, the synergistic regulation of substrate stabilization and surface activation is achieved. The B-site-doped membrane substrate provides a stable transmembrane transport channel for oxygen species generated during CO2 decomposition, while the A-site-defect coating enhances the generation process of oxygen species on the CO2 feed side. Together, they reduce the resistance to surface reactions and oxygen migration on the CO2 side, enabling the membrane reactor to maintain long-term stable operation even at high CO2 decomposition rates. This invention provides an effective substrate-coating synergistic modification method for improving the CO2 decomposition rate and long-term operational stability of membrane reactors.

The invention discloses a metal negative electrode system with a filler modified polymer porous coating and a preparation method, the metal negative electrode system comprises a metal negative electrode material and the filler modified polymer porous coating coated on the surface of the metal negative electrode material, and the coating comprises a polymer material and a filler; the preparation method comprises the following steps: (1) mixing and dispersing the polymer material, the filler, the polymer good solvent and the polymer non-solvent to obtain a uniform mixed coating; and (2) coating the surface of the metal negative electrode material subjected to surface pretreatment with the obtained mixed coating, and drying and separating to obtain the metal negative electrode material. The preparation method disclosed by the invention is simple and low in cost, and the ion transmission capability and the side reaction inhibition capability of the polymer coating are effectively improved through modification of the filler, so that dendritic crystal growth and by-product generation on the surface of the metal negative electrode are effectively inhibited, and the stability of the metal battery is further remarkably improved.

The invention provides an isolating membrane and a preparation method thereof, a secondary battery monomer, a battery device and a power utilization device, the isolating membrane comprises a porous base membrane and a porous coating located on at least one side of the porous base membrane, and the porous coating comprises organic particles and inorganic particles, and the mass ratio of the organic particles in the porous coating is greater than that of the inorganic particles in the porous coating. The isolating membrane is used in the secondary battery monomer, so that the secondary battery monomer has high energy density and high reliability.

The invention relates to the technical field of electrochemical energy storage devices, in particular to a diaphragm, an electrochemical device and an electronic device, mainly comprising: a diaphragm for a battery, the diaphragm comprising a porous base material and a porous coating arranged on at least one surface of the porous base material; in a 12 [mu] m * 9 [mu] m region of the surface of the porous coating layer, the number N of macropores having a maximum diameter of 0.5 [mu] m to 6 [mu] m satisfies 5 < = N < = 30. The diaphragm provided by the invention can effectively improve the infiltration effect of an electrolyte, so that the problems of purple spots, black spots and lithium precipitation at battery corners are effectively relieved.

A separator for a lithium secondary battery and a lithium secondary battery including the separator, including a porous polymer substrate; and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer includes first inorganic particles surface-treated with a polyphenol-containing compound, second inorganic particles surface-treated with an organic acid, and a binder polymer. The first inorganic particles have an average particle diameter of 100 nm to 700 nm, and the second inorganic particles have an average particle diameter of 30 nm to 80 nm. The separator for a lithium secondary battery uses two types of surface-treated inorganic particles having a different average particle diameter. Therefore, the inorganic particles have improved dispersibility, and the separator has high thermal safety and can prevent separation of the inorganic particles.

An electrode assembly, a battery, and an electric device. The electrode assembly includes a first electrode, a second electrode, a first separator, and a second separator. One of the first separator and the second separator is disposed between the first electrode and the second electrode. The other of the first separator and the second separator is disposed on a side that is of the first electrode or the second electrode and that faces away from the first separator. One of the first separator and the second separator does not include a porous coating. The other of the first separator and the second separator includes a porous coating. The thickness of the porous coating is 0.5 μm to 8 μm. The electrode assembly in the present application includes a specific first separator and a specific second separator, which can effectively improve cycling performance of the battery.

The present invention provides a separator for a lithium secondary battery, comprising: a porous polymer substrate; and a porous coating disposed on at least one surface of the porous polymer substrate, the porous coating including inorganic particles and a binder polymer, where the inorganic particles include surface-modified calcium carbonate (CaCO3), the surface-modified calcium carbonate including a first surface-modified calcium carbonate, a second surface-modified calcium carbonate, or a combination thereof, the first surface-modified calcium carbonate includes a first calcium carbonate and a fatty acid-derived functional group chemically bonded to a surface of the first calcium carbonate, and the second surface-modified calcium carbonate includes a second calcium carbonate and an organosilane-derived functional group chemically bonded to a surface of the second calcium carbonate.

A separator for an electrochemical device is provided. The separator comprises: a porous substrate having a plurality of pores, and a porous coating layer positioned on at least one surface of the porous substrate, the porous coating layer including a plurality of inorganic particles and a binder polymer positioned on a whole or a part of the surface of the inorganic particles to connect the inorganic particles with one another and fix the inorganic particles, wherein the binder polymer comprises a first binder polymer and a second binder polymer. The first binder polymer is poly(vinylidene fluoride-co-hexafluoroproyplene) (PVdF-HFP), and the second binder polymer is poly(vinylidene fluoride-co-tetrafluoroethylene) (PVdF-TFE). The first binder polymer has an electrolyte uptake of 80-165%, and the second binder polymer has an electrolyte uptake of 20-40%. An electrochemical device including the separator is also disclosed.

A separator, a secondary battery cell, a battery device, and an electric device. The secondary battery cell comprises a positive electrode sheet, a negative electrode sheet, and a separator. The separator is arranged between the positive electrode sheet and the negative electrode sheet. The separator comprises a porous base membrane and a porous coating located on at least one side of the porous base membrane, wherein the porous coating comprises organic particles, and an initial thermal weight-loss temperature T3d of the organic particles is greater than or equal to 320°C. The separator can enable the secondary battery cell to have both high mass energy density and high reliability.

The application discloses a battery monomer, a battery device and a power utilization device. The battery monomer comprises a shell and an electrode assembly arranged inside the shell, the electrode assembly comprises a positive electrode sheet, a negative electrode sheet and a separator, the separator is arranged between the positive electrode sheet and the negative electrode sheet, the separator comprises a base film and a porous coating, and the porous coating is arranged on one side of the base film facing the negative electrode sheet; the shell comprises a top wall and a bottom wall, and the bottom wall is used for supporting the electrode assembly; the separator comprises a first area and a second area, and the first area is located on one side of the separator close to the top wall; and the specific surface area of the porous coating of the first area is greater than that of the second area. The application can improve the top soaking effect of the electrode assembly, thereby prolonging the service life of the battery monomer.

An electrochemical device separator is proposed, which includes a porous polymer substrate and an organic / inorganic composite porous coating formed on at least one side of the polymer substrate, the organic / inorganic composite porous coating including particulate binder polymers and first inorganic particles, the particulate binder polymers including hybrid polymer particles of a fluorine-based polymer and an acrylic polymer and acrylic polymer particles, the particle size D50(a) of the acrylic polymer particles being in the range of 1 µm to 7 µm, the particle size D50(b) of the inorganic particles being in the range of 200 nm to 800 nm, a / b being in the range of 2 to 15, and the particle size D50 of the hybrid polymer particles being smaller than the particle size D50 of the acrylic polymer particles.

This invention discloses a composite membrane for alkaline water electrolysis, its preparation method, and its application. The composite membrane comprises, in sequence, a polymer porous layer and a composite porous coating; wherein the composite porous coating contains a mesh-like support structure; the polymer porous layer is composed of polysulfone and chitosan; and the composite porous coating is composed of alkali-resistant polymer and inorganic nanoparticles. The composite membrane provided by this invention possesses high chemical and mechanical stability in strongly alkaline media, high porosity and small pore size, good wettability to alkaline solutions, low gas permeability, and low surface resistivity, while also suppressing the powder shedding problem of modified PPS membranes.

The present invention provides a separator for an electrochemical device and an electrochemical device having same applied thereto, the separator comprising: a porous polymer substrate; and a porous coating layer formed on at least one surface of the porous polymer substrate and containing inorganic particles, wherein the dielectric constant of the porous coating layer is 250 to 10,000 (both inclusive).

A separator and a preparation method therefor, a secondary battery cell, a battery apparatus, and an electric apparatus. The separator comprises a porous base film and a porous coating located on at least one side of the porous base film; the porous coating comprises silicon-containing organic resin particles and fibrous material; and at least some of the silicon-containing organic resin particles are located within the fibrous material. The separator is used in the secondary battery cell, such that the secondary battery cell has both high gravimetric energy density and high reliability.