672 results about "Isolation membrane" patented technology

The embodiment of the invention provides an isolating membrane and a related secondary battery and an electric device thereof. The isolating membrane comprises a first porous base membrane, a second porous base membrane and a coating, the coating is arranged between the first porous base membrane and the second porous base membrane, and the coating comprises filler with a pore structure.

The invention provides an isolating membrane, a preparation method, a secondary battery and a power utilization device, the isolating membrane comprises a first porous base membrane, the first porous base membrane is polyolefin, and the viscosity average molecular weight of the first porous base membrane is greater than or equal to 1,200,000 g / mol, so that the isolating membrane has relatively high puncture-resistant strength; the branching degree of the first porous base membrane is smaller than or equal to 5%, molecular chain sequences in the first porous base membrane are easy to form ordered arrangement, the regularity of molecular chains is improved, and the puncture resistance strength of the isolating membrane is further improved, so that the isolating membrane provided by the invention can reduce the risk that the isolating membrane is punctured by metal dendrites, the cycle life of the secondary battery is prolonged, and the service life of the secondary battery is prolonged. And the reliability of the secondary battery is improved.

A battery cell (20), comprising: a casing (21); an electrode assembly (22), wherein the electrode assembly (22) is arranged in the casing (21) and comprises a separator (221) and electrode sheets (222), the separator (221) and the electrode sheets (222) being stacked and wound, and a central space (22a) being formed at the center of the electrode assembly (22); and a buffer member (23), which comprises a buffer portion (231) and an extension portion (232), the buffer portion (231) being arranged in the central space (22a), and the extension portion (232) being located outside the central space (22a) and arranged between the casing (21) and the electrode assembly (22). By means of the configuration of the buffer member (23) comprising the buffer portion (231) and the extension portion (232), the probability of brittle fracture during hot pressing of a winding structure is reduced, and the probability of bur formation is thus reduced; in addition, the spacing between the electrode sheets at the innermost corner of the electrode assembly (22) is reduced, the probability of a large gap occurring between the electrode sheets (222) at the innermost corner of the electrode assembly (22) is reduced, and the probability of lithium plating is reduced. By using the extension portion (232) to separate the electrode assembly (22) from the casing (21), the probability of the electrode assembly (22) colliding with the casing (21) when assembled into the casing (21) is reduced, thereby improving the reliability of the battery cell (20).

An image sensor includes a substrate having pixel regions, and a deep isolation pattern provided between the pixel regions within the substrate, wherein the deep isolation pattern includes a liner film covering a sidewall of a trench in the substrate, a first pattern provided on an inner sidewall of the liner film and having a height less than a height of the liner film, an isolation film on inner sidewall of the first pattern, and a second pattern covering inner sidewalls of the isolation film and an upper portion of an inner sidewall of the liner film, a void is provided in the second pattern, the second pattern is spaced apart from the first pattern by the isolation film, and a grain size of the second pattern is larger than a grain size of the first pattern.

The invention relates to the technical field of waterproof coiled materials, and provides an occlusion type lap joint prefabricated high-molecular waterproof coiled material and a preparation method thereof.The occlusion type lap joint prefabricated high-molecular waterproof coiled material sequentially comprises a cloth base material layer, an upper waterproof layer, a tire base layer, a lower waterproof layer and a first isolating membrane layer from top to bottom; the upper waterproof layer and the lower waterproof layer are respectively and independently prepared from the following components in parts by weight: 50 to 65 parts of polyolefin, 10 to 20 parts of metallocene polyolefin, 30 to 35 parts of ethylene propylene diene monomer, 30 to 45 parts of talcum powder, 30 to 40 parts of flame retardant, 1 to 3 parts of antioxidant, 0.5 to 1.5 parts of ultraviolet light absorber, 4 to 6 parts of pigment and 1 to 3 parts of compatilizer. According to the technical scheme, the problems of poor tensile property and poor aging resistance of the occlusion type lap joint prefabricated polymer waterproof coiled material in the related technology are solved.

The present invention discloses a ceramic coated diaphragm and a preparation method thereof, and a secondary battery. The ceramic coated diaphragm comprises a substrate layer and a ceramic coating, wherein the ceramic coating comprises ceramic particles, a binder polymer and an organic high molecular polymer. Under hot pressing conditions of a temperature of 90°C and a pressure of 4MPa, an organic film is formed on the surface of the ceramic coating after hot pressing, wherein the coverage of the organic film is 0-5%, the value-added permeability per unit coating thickness after hot pressing is 0-15s / 100cc, and the peel strength after hot pressing is above 20gf / 15mm. The separator designed by the present invention still has high peel strength and ion permeability after hot pressing, the internal resistance of the battery is reduced, and the cycle and capacity are correspondingly improved.

The invention provides a kit for single-hole detection of nucleic acids of various respiratory pathogens, and belongs to the technical field of pathogen detection, the kit comprises 2-5 primer combinations and a film-forming agent; the film-forming agent is polyethylene wax; each primer combination comprises a plurality of primer pairs, and the primer pairs are used for amplifying specific respiratory tract pathogen nucleic acid. According to the invention, the reaction is divided into two systems, the two systems are separated by a film-forming agent, amplification of the two reaction systems is carried out in the same reaction tube, after multiple amplification is completed, an isolating membrane is heated and melted, two groups of amplification products are mixed, and then the amplification products are detected. The multiplex RT-PCR kit which is good in detection specificity, high in sensitivity, good in repeatability and high in detection accuracy and can be used for simultaneously detecting various pathogenic bacteria is successfully constructed.

The invention provides an isolating membrane for a sodium-ion battery and a preparation method of the isolating membrane. The isolating membrane comprises a base membrane; the functional coating is arranged on at least one side of the base film; wherein the functional coating comprises a functional filler and a binder; the functional filler is prepared from a sulfonated NASICON type solid electrolyte and aminated beta-Al2O3; the mass ratio of the sulfonated NASICON type solid electrolyte to the aminated beta-Al2O3 is 1: (0.2-0.5). The sulfonated NASICON type solid electrolyte and the aminated beta-Al2O3 in the functional coating of the isolating membrane cooperate with each other, so that the isolating membrane has relatively high ionic conductivity, and the isolating membrane can be used for improving the overall performance of the sodium ion battery.

The invention relates to the technical field of tunnel engineering waterproof construction, and discloses a tunnel lining waterstop construction method which comprises the following steps: cleaning and welding a waterstop joint; the water-stop belt is positioned along a lining formwork preset line, tension is applied through cooperation of a steel bar fixing point and a tension clamp, and the gap between the water-stop belt and the formwork is controlled to be smaller than or equal to 0.5 mm; an anchoring part is installed at the bottom of the waterstop, a vertical flange of the anchoring part is used for pressing the lower edge of the waterstop, and a horizontal flange is embedded into concrete; silica gel-based flexible isolating membranes are laid on the two sides of the water stop belt, and the top of the water stop belt is connected with an inflatable expansion strip; nanometer epoxy resin is injected into the micro-channel, the injection pressure and the air pressure of the inflatable expansion strip are dynamically adjusted, and curing is conducted till the filling rate of the nanometer epoxy resin reaches 95% and the air pressure is stable; and finally, concrete is poured, the jacking pressure of the formwork on the water stop belt is adjusted in a partitioned mode through the hydraulic jacking module, and the pressure is relieved after the concrete is initially set. The waterproof sealing structure is mainly used for improving the waterproof sealing performance and the structural stability of the tunnel lining joint.

The invention provides an isolating membrane, a battery monomer, a battery and an electric device, and belongs to the technical field of batteries. In the first direction of the isolating membrane, the liquid absorption rate of the middle area of the isolating membrane is larger than that of the edge area of the isolating membrane, and the first direction is perpendicular to the thickness direction of the isolating membrane. According to the technical scheme, the battery performance can be improved.

The invention provides an isolating membrane, a preparation method thereof and a related secondary battery and an electric device, the isolating membrane comprises a porous base material and a coating layer arranged on at least one surface of the porous base material, the coating layer comprises a fibrous material and a filler, and the fibrous material and the filler are arranged along the thickness direction of the isolating membrane. The average pore area of the coating is smaller than the average pore area of the porous base material. According to the present invention, the secondary battery can give consideration to high energy density, high thermal safety performance, good cycle performance and good dynamic performance.

The invention discloses an isolating membrane, a preparation method thereof and an electrochemical device, and belongs to the technical field of isolating membranes. The isolating membrane comprises a body membrane and a composite material layer arranged on at least one side surface of the body membrane, the composite material layer comprises inorganic particles and an inorganic binder; the inorganic binder comprises an M2O.nSiO2 component and / or aluminum sol with the chemical formula of a (Al2O3.mH2O). BHx.cH2O, M comprises at least one of Na, K and Li, and n is greater than or equal to 1 and less than or equal to 4; al2O3.mH2O is hydrated alumina, and Hx is a peptizing agent. The isolating membrane not only has better peel strength, puncture strength, wettability and air permeability, but also has good ionic conductivity, and can be used more stably and lastingly under a high-temperature condition, so that an electrochemical device containing the isolating membrane can also operate safely and efficiently under the high-temperature condition.

The present application provides an isolation membrane, a preparation method thereof, and a related secondary battery and electrical device, the isolation membrane comprises a porous base material and a coating disposed on at least one surface of the porous base material, the coating comprises a fibrous material and a filler, the filler comprises a first filler and a second filler, the average particle size of the second filler is greater than that of the first filler. According to the present invention, the heat resistance, the ion conduction rate and the electrolyte infiltration and retention characteristics of the isolation membrane can be improved so as to provide the high heat safety performance and the good cycle performance and the good dynamic performance of the secondary battery;

The invention discloses a sealing mechanism and a single battery. The sealing mechanism comprises a cylindrical body formed by an additive which can be dissolved in electrolyte, at least the first end face of the columnar body has a separator which is insoluble in the electrolyte. The sealing mechanism is installed on the shell of the single battery, when electrolyte is injected, the sealing mechanism is dissolved, a through hole is formed in the single battery, unpacking of the single battery is achieved, no special tool is needed in the process, operation is easy, and the manufacturing cost is reduced; and meanwhile, the sealing mechanism is formed by curing an electrolyte additive, so that the performance of the high-capacity battery is improved after the electrolyte additive is dissolved in the electrolyte.

A current collector (40), a method for manufacturing the same, an anode strip including the current collector (40), a secondary battery (100), and an electrical device (1000). The current collector (40) comprises a porous three-dimensional skeleton (402) and lithium-loving substances (404), the lithium-loving substances (404) are distributed in holes of the porous three-dimensional skeleton (402), the current collector (40) comprises a first side and a second side deviating from the first side, the first side is used for facing the isolating membrane, the porous three-dimensional skeleton (402) comprises a first part and a second part in the direction from the first side to the second side, and the second part is used for being separated from the first part. A thickness of the lithium-philic substance (404) within the pores of the first portion is less than a thickness of the lithium-philic substance (404) within the pores of the second portion. The thickness of the lithium-loving substance (404) in the current collector (40) is gradually increased in a gradient manner along the thickness direction of the porous three-dimensional framework (402), so that lithium metal can be induced to preferentially deposit on a second part of the porous three-dimensional framework (402), pores of the three-dimensional current collector (40) are fully utilized, and infinite volume expansion of deposited lithium is limited.

The invention relates to the technical field of secondary batteries, and particularly provides an isolating membrane and a preparation method thereof, a secondary battery and an electric device. The isolating membrane comprises a porous base membrane, the porous base membrane comprises a matrix phase and a filling phase dispersed in the matrix phase, a test curve of a differential scanning calorimeter of the porous base membrane comprises a melting peak of the matrix phase and a melting peak of the filling phase at the same time, and the temperature of the melting peak of the matrix phase is higher than that of the melting peak of the filling phase. The separator provided by the present application can provide reliability of the secondary battery.

The invention discloses a polymer coating, an electrode plate, an isolating membrane, a battery and an electric device. The polymer coating comprises a binder and a liquid absorbent, the binder is prepared from at least one of polyvinylidene fluoride, a vinylidene fluoride-hexafluoropropylene copolymer, a vinylidene fluoride-trifluoroethylene copolymer, a vinylidene fluoride-tetrafluoroethylene copolymer, a vinylidene fluoride-trifluorochlor oethylene copolymer and a polyacrylic acid polymer; the liquid absorbing agent comprises at least one of a polyacrylate electrolyte, a polyether electrolyte, a polycarbonate electrolyte, a polycarboxylate electrolyte, a silicon-based electrolyte, polymercaptan, a maleic anhydride electrolyte and a polysulfate electrolyte. The polymer coating has relatively high viscosity and liquid absorption capability, and can improve the liquid retention capability and mechanical strength of the battery when being applied to the battery.

The utility model provides a quantifiable detection consumable and detection equipment, and relates to the in vitro diagnostic technology, the quantifiable detection consumable comprises a sample tube with a cavity and a reaction tube communicated with the sample tube, the reaction tube is provided with a reaction cavity and a sealing film for sealing the reaction cavity; the piston structure is arranged in the cavity; a first limiting structure used for limiting the piston structure to the first position and a second limiting structure used for limiting the piston structure to the third position are further arranged on the inner wall of the sample tube, the piston structure pierces the sealing film when moving to the third position from the first position, and the treatment liquid quantitatively flows into the reaction cavity; the piston structure is used for puncturing the isolating membrane isolated between the cavity and the reaction cavity, so that the treatment liquid enters the reaction cavity, the step of container replacement is omitted, meanwhile, the piston structure is pushed to move by a preset stroke, it is ensured that the mixed solution quantitatively flows into the reaction cavity, and it is avoided that excessive mixed solution enters the reaction cavity, and the detection result is affected.

The invention provides a display panel and a display device. The display panel is provided with a display area and a non-display area, and the display panel comprises a substrate; the isolation structure is arranged on one side of the substrate and located in the display area and the non-display area, a plurality of isolation openings are defined by the isolation structure, the isolation structure is provided with at least one concave part, the isolation openings are located in the display area, and the concave parts are located in the non-display area. The at least one sunken part is sunken towards the substrate from one side, deviating from the substrate, of the isolation structure; and a plurality of light-emitting devices, wherein at least part of the light-emitting devices are located in the isolation openings. The sunken part can relieve the stress in the isolating membrane group, so that the problem that the adjacent membrane layers in the non-display area are easy to be abnormal is solved.

The invention provides an isolating membrane. The isolating membrane comprises a first porous base membrane and a second porous base membrane, a second porous base membrane; the porous coating is arranged between the first porous base membrane and the second porous base membrane, and the porous coating comprises a binder and filling particles; and the embedding depth of at least one part of the filling particles in the first porous base membrane is greater than or equal to 1 [mu] m and / or the embedding depth of at least one part of the filling particles in the second porous base membrane is greater than or equal to 1 [mu] m. When the porous coating is located between the first porous base membrane and the second porous base membrane, the binder can play a role in bonding the first porous base membrane and the second porous base membrane, and meanwhile, the depth of at least one part of the filling particles embedded into the first porous base membrane and / or the second porous base membrane is larger than or equal to 1 micron. The binding force between the porous coating and the first porous base membrane and / or the second porous base membrane is increased, and the heat resistance and nailing performance of the isolating membrane are effectively improved, so that the reliability of the battery is improved.

The invention relates to the technical field of biological materials, in particular to an intrauterine degradable shape memory isolating membrane and a preparation method thereof. The raw materials of the isolating membrane at least comprise a compound of an artificial high-molecular compound and a natural high-molecular compound. The mass ratio of the artificial high-molecular compound to the natural high-molecular compound is (5-95): (95-5); the isolating membrane is used for loading the medicine and continuously releasing the medicine into the uterine cavity. The isolating membrane is folded and conveyed to a womb wound part after an operation, the purpose of automatically unfolding the isolating membrane to reach the womb wound part is achieved, and intrauterine adhesion is physically blocked. In addition, the isolating membrane can load bioactive medicines according to requirements, so that the functions of relieving pain or stimulating and continuously activating an endometrial basal layer are realized, the occurrence of uterine scars is inhibited, and the normal uterine fertility function of a patient can be recovered more quickly.

The invention relates to a flexible adjusting roller device, and belongs to the technical field of film winding equipment, the device comprises a roller body and a force arm mechanism, the roller body is used for applying pressure to an isolating film material roll to flatten wrinkles and lump protrusions, the force arm mechanism comprises a force arm plate, a bearing and a rotating shaft, the force arm plate and the rotating shaft rotate relatively through the bearing, and the rotating shaft rotates relative to the bearing. The force arm mechanisms are installed at the two ends of the roller body in a mirror symmetry mode, so that relative rotation between the roller body and the force arm mechanisms is achieved, the tail ends of the two corresponding force arm plates are fixedly connected with piston rods of the low-friction air cylinder mechanisms, and the control mechanism drives the piston rods to do linear motion and drives the force arm plates to do arc track swing motion around the axis of a rotating shaft. And then the roller body is driven to rotate relative to the rotating center on the force arm mechanism, so that the roller body applies proper pressure to the isolating membrane material roll, the isolating membrane is kept flat in the rolling process, and the rejection rate caused by wrinkles and bulges is reduced.

The invention relates to a composite material, an isolating membrane, a battery and an electric device, the isolating membrane comprises a base material and a functional layer arranged on at least one side of the base material, the functional layer comprises a composite material, the composite material comprises a metal organic framework compound and a chelate which are connected with each other, the metal organic framework compound is formed by coordination of metal ions and organic ligands, the valence of the metal ions is larger than or equal to bivalence, and the organic ligands comprise polycarboxylic acid groups.

The invention belongs to the technical field of visual inspection, and particularly relates to an auxiliary product detection device after an isolating membrane dispensing process, which comprises a support suitable for supporting a thin film product to be detected; an upper reflection mechanism and a lower reflection mechanism are respectively arranged on the bracket and above and below the film product to be detected; wherein in the transmission process of the film product to be detected, the upper reflection mechanism and the lower reflection mechanism are suitable for performing visual detection on the upper surface and the lower surface of the film product to be detected in a transmission state under the control of the control module; through the arrangement of the cleaning mechanism, dust adhering to the surface of a thin film is removed in the thin film conveying process, and dust adhering to the surface of the tensioning roller is adsorbed in real time in the process that the tensioning roller rotates to tension the thin film; and dust blown away from the film is prevented from adhering to the surface of the tensioning roller and being pressed on the surface of the film along with rotation of the tensioning roller to affect the subsequent visual inspection effect.

The invention discloses an isolating membrane, an electrochemical device and an electronic device. The isolating membrane comprises a base membrane and a first coating arranged on at least one side of the base membrane, the first coating comprises polydopamine and an adhesive polymer, and the Young modulus of the base membrane is 52-90 MPa. The isolating membrane has good structural stability and relatively high mechanical strength, and the reduction of the strength of the isolating membrane after the isolating membrane is dissolved in an electrolyte and swells can be effectively reduced, so that the quick charging performance and the structural stability of an electrochemical device at a low temperature are improved.

The embodiment of the invention discloses a separator and a preparation method thereof, a lithium ion battery and an electric device. The separator comprises an isolating membrane and a coating arranged on at least one side of the isolating membrane, the coating comprises a metal salt, the metal salt comprises metal ions, and the reduction potential of the metal ions is higher than that of the lithium ions. The separator is applied to the lithium ion battery, can effectively inhibit lithium precipitation, and helps to improve the cycle performance of the lithium ion battery.

The present invention relates to the technical field of transportation engineering and municipal engineering construction, specifically to an isolation structure and method for over-station construction. An isolation structure for over-station construction, comprising a transversely arranged horizontal steel beam and a longitudinally arranged main steel beam, characterized in that: an isolation membrane structure is provided on the transverse steel beam and the main steel beam, the lower end of the isolation membrane structure is connected to a dense-mesh safety green net, the lower end of the dense-mesh safety green net is connected to a vertical hard isolation structure, and the vertical hard isolation structure is located on the inner side of the platform. Compared with the existing technology, it can be constructed during the operation of the train, and after it is erected, it has high-demand isolation and safety protection, and is fully isolated from the track area, so that the construction in the station and the train operation do not affect each other, thereby improving work efficiency and construction safety.

The invention provides an isolating membrane, a preparation method of the isolating membrane, a related secondary battery and a related electric device. The isolating membrane comprises a base material and a coating arranged on at least one surface of the base material, the coating comprises organic silicon particles, and the volume distribution particle size Dv90 of the organic silicon particles meets the condition that Dv90 is larger than 0 and smaller than or equal to 3.0 micrometers. According to the present invention, the organic silicon particles with the particle size are adopted, such that the thin isolation film can be easily obtained, and the coating has good heat resistance and good stability so as to effectively isolate the positive electrode and the negative electrode of the secondary battery by the isolation film so as to improve the safety performance of the secondary battery.

The invention provides an electrochemical device and an electronic device.The electrochemical device comprises an isolating membrane, a positive pole piece and electrolyte, the isolating membrane comprises a porous layer, and the average pore size of the porous layer is 0.5-18 microns; the electrolyte contains propyl propionate, the mass content of the propyl propionate is 25%-55% based on the mass of the electrolyte, the positive pole piece comprises a positive active material layer, the positive active material layer comprises a conductive agent, the conductive agent comprises at least one of conductive carbon black and ketjen black, and the specific surface area of the conductive agent is 600m < 2 > / g-1100m < 2 > / g. The electrochemical device disclosed by the invention has good quick charge performance, and the electrochemical device disclosed by the invention is relatively low in gas production rate when being overcharged, and has good cycle performance and safety performance.

The invention discloses protective glass, an isolating agent, application of the isolating agent and display equipment, the protective glass comprises a glass body and an isolating membrane layer arranged on at least one surface of the glass body, the isolating membrane layer can inhibit alkali precipitation reaction of soda-lime glass, especially alkali precipitation reaction on the back surface of the glass, and the isolating membrane layer can inhibit alkali precipitation reaction of the soda-lime glass, especially alkali precipitation reaction on the back surface of the glass. And the surface energy difference of the back surface of the glass can be eliminated, so that the whole surface energy becomes more uniform. The protective glass is good in optical transparency, clear in imaging, high in glossiness, low in Ra roughness and high in Rsm roughness, the problem of poor watermarks of a whole machine can be solved, and the protective glass can be adopted for improvement as long as soda-lime glass is used in other industries.