64results about How to "Inhibit electrolysis" patented technology

Microfluidic channels utilizing magnetohydrodynamics are used to pump very small volumes of solution. The channels have electrodes along the walls and a current carrying species within a solution carries current through the solution. The combination of the electric and magnetic fields causes the solution to flow through the channel.

Microfluidic channels utilizing magnetohydrodynamics are used to pump very small volumes of solution. The channels have electrodes along the walls of the channel and a current carrying species within the solution carries the current through the solution. The electric field generated by the use of the current carrying species is perpendicular to a magnetic field applied to the channel. The combination of the electric and magnetic fields causes the solution to flow through the channel.

The invention relates to an alternating current type abrasive magnetic fluid jet flow generator which comprises a supporting seat, wherein a stirring barrel is arranged on the supporting seat, a discharge pipe is arranged on the lower side of the stirring barrel, the discharge pipe is connected with an abrasive pipe through a connector I, the outer periphery of the abrasive pipe is wrapped by a superconducting coil, a coil sheath is arranged on the outer side of the superconducting coil, the abrasive pipe is connected with a high-pressure rubber hose through a connector II, and the high-pressure rubber hose is connected with a nozzle through a rapid plug. The abrasive magnetic fluid can be sufficiently mixed through the stirring barrel arranged, so that the even abrasive magnetic fluid solution can be obtained, the use of a booster and a pump pieces can be favorably avoided through the superconducting coil arranged, the electrolysis problem of the alternating current type abrasive magnetic fluid jet flow generator can be avoided, the leakage problem brought by a hydraulic element can be decreased, and the alternating current type abrasive magnetic fluid jet flow generator has a simple structure, and is convenient to operate, and economic and practical.

A structure and method for forming a U-clip assembly made of a plurality of U-clips arrayed in a continuous abutting relation, each U-clip having first and second slots defined in its crown portion with first and second soft metal wires positioned, respectively, in such first and second slots, such soft metal wire forming a shallow U shape between adjacent crown portions, such first and second soft metal wires being compressed within their slots to expand within such slots for contacting and urging against the sides and bottom of each slot and being retained therein, such soft metal wire and its shallow U shape between adjacent crown portions allowing the U-clip assembly to maintain a non-curved shape and to be substantially flat in configuration.

The invention discloses a method for actively controlling a friction coefficient of a metal friction pair in aqueous solution of a surfactant. A metal side of a sliding friction pair is provided with a working electrode; an inert material with proper area is arranged nearby the friction pair to serve as an auxiliary electrode; the required friction coefficient is controlled actively and acquired by applying a corresponding control electric potential to the sliding friction pair; the sliding friction pair consists of a metal material and a ceramic or metal material; and a lubricant is the aqueous solution of the surfactant. The range and the size of a voltage applied in the method for actively controlling the friction coefficient of the metal friction pair in the aqueous solution of the surfactant can be determined according to a relationship between an electrode electric potential of the working electrode and a bath voltage. The method for actively controlling the friction coefficient of the metal friction pair in the aqueous solution of the surfactant is widely applicable to a friction-driven and friction-braked device and provides technical guarantee for the reliability and the controllability of the device.

The invention discloses engine cylinder body full-automatic vertical electro brush plating equipment with X, Y and Z three-dimensional slide guides to perform accurate positioning, wherein the working procedure and the steps are controlled by a microcomputer procedure. The equipment comprises a 'plating solution providing and recovering system' which automatically injects according to the working procedure and storing in a classifying and recovering way with a solution dividing pan; a 'centered plating head' which is installed on a main spindle box on the Z slide guide, is provided with electrolysis material, and is connected with a sealed chamber; a nonmetal 'insulating platform' with the multifunction of insulating, self-weight multi-position sealing, plating solution collecting and positioning work piece bearing; a cylindrical 'temperature-increasing system' which is hung behind a shield cover for heating cleaning water before and after changing the solution; a 'temperature-reducing system' of a microcomputer and a program control electrical cabinet large-power brush plating electric source; an 'exhausting device' for volatilizing gas of the plating solution; and a 'vertical electro brush plating center' which performs one-off clamp multi-work position electro brush plating repair for worn and broken 'multi-pore workpieces' and can be continuously produced with large power and on a large scale.

The invention relates to an apparatus and a amethod for inhibiting TFT-LCD substrate glass bubbles, the apparatus comprises a seal container and a set of control system, a high temperature glass liquid flows through a glass liquid transmission pipeline, one segment pipeline by flowing through is bounded by a seal container, a seal space is formed between the pipeline external surface and seal container interior surface; steam is sent by a steam air inlet pipe, and is penetrated into a steam cycle pipeline through a steam inlet valve, and enters in a seal space through a cycle inlet valve, the steam in a seal space is returned to a steam circulating pipe by circulating to an air valve; and steam content in the seal space is controlled by a set of closed loop control system. The effect scope is a cooling segment during the glass transmission process, the possibility of new bubbles generation during the cooling process is substantially reduced.

The invention relates to a sensor for switching a pump on and / or off, with at least one first and a second electrode, which form a capacitance which may be influenced by way of the fluid to be delivered, and with evaluation electronics connected to the electrodes, wherein the evaluation electronics has a voltage supply which is connected to the first electrode and which is designed for providing short voltage pulses for charging the first electrode, and comprises an evaluation circuit which is designed in a manner such that during a voltage increase on charging and / or a voltage reduction on discharging the electrode, it detects the current between the electrodes and emits a switch-on signal and / or switch-off signal depending on the detected current, as well as to a pump with such a sensor.

This invention relates to a non-aqueous electrolyte for a battery having high flame retardance and capable of giving high heat resistance to a positive electrode material of a battery, and more particularly to a non-aqueous electrolyte for a battery characterized by comprising a non-aqueous solvent containing a cyclic phosphazene compound represented by the following general formula (I): (NPR 2 )n (I) ¢wherein Rs are independently fluorine, an alkoxy group or an aryloxy group; and n is 3-4! and at least one methyl ester compound selected from the group consisting of methyl acetate, methyl propionate and methyl butyrate, and a support salt.

Microfluidic channels utilizing magnetohydrodynamics are used to pump very small volumes of solution. The channels have electrodes along the walls and a current carrying species within a solution carries current through the solution. The combination of the electric and magnetic fields causes the solution to flow through the channel.

The invention relates to a non-water electrolyte for lithium secondary cell, containing: (i) lithium salt; (ii) non-water organic solvent; (iii) an additive containing at least a halogen alkene compound which contains hydrogen, alkyl, cycloalkyl, thiazolinyl, aryl or halogen, as well as F, Cl, Br or I; the additive accounts for 0.1-10wt% of total weight of the non-water organic solvent. The invention uses the above additive before the decomposition of the organic solvent of the electrolyte and can form a layer of compact and stable solid electrolyte interface film on graphite cathode surface, thus furthest inhibiting the decomposition of the electrolyte and then improving the charge-discharge efficiency and circulating property of the lithium secondary cell.

The invention discloses a device for driving solid-liquid two-phase flow to form abrasive water jet based on the electromagnetic principle. The device comprises a control box, an electromagnetic driving device and an intermittent on / off device. The electromagnetic driving device comprises a main flow coarse channel, an upper inclined and thin channel and a lower inclined and thin channel. The upper side and the lower side of the main flow coarse channel are both provided with connecting end openings. An input end opening of the upper inclined and thin channel and an input end opening of the lower inclined and thin channel are both provided with flow guide areas. Each flow guide area is composed of an upper transition arc-shaped region and a lower transition arc-shaped region. Each upper transition arc-shaped region is provided with an arc A. Each lower transition arc-shaped region is composed of an extending section, an arc-shaped transition section and an inclined section. According to the device, the function of driving the solid-liquid two-phase flow to form continuous abrasive water jet through intermittent multi-directional combination is adopted, the phenomenon of electrolysis in the device can be effectively avoided, pressure energy losses are effectively reduced, and the effect of driving the solid-liquid two-phase flow to form an abrasive water jet pressure head through the device is effectively improved.

The invention relates to a sensor for switching a pump on and / or off, with at least one first and a second electrode, which form a capacitance which may be influenced by way of the fluid to be delivered, and with evaluation electronics connected to the electrodes, wherein the evaluation electronics has a voltage supply which is connected to the first electrode and which is designed for providing short voltage pulses for charging the first electrode, and comprises an evaluation circuit which is designed in a manner such that during a voltage increase on charging and / or a voltage reduction on discharging the electrode, it detects the current between the electrodes and emits a switch-on signal and / or switch-off signal depending on the detected current, as well as to a pump with such a sensor.

The invention discloses a preparation method of a polymer electrolyte membrane based on a silicon-based negative electrode material. The method comprises the following steps: dissolving PPC and polymers (at least one of PPMMA, PAN, TPU and PVdF) with polar groups into an N,N-dimethyl acetamide and acetone mixed solution to prepare a uniform and semi-transparent spinning solution; injecting the semi-transparent spinning solution into an injection syringe, carrying out electrostatic spinning for 18 to 22 h with the injection volume of 0.3 to 0.7 ml / h at 15 to 17 kV, and then obtaining a nanometer fiber composite polymer membrane; carrying out vacuum drying on the polymer membrane, and obtaining a polymer electrolyte after electrolyte activation. In the preparation method, the PPC, PMA, PAN, TPU and PVdF serve as raw materials, the cost is low, the resources are wide, and the PPC is a completely degradable material, green and non-toxic. The method disclosed by the invention is simple, high in operability, good in repeatability and easy for industrial production, and has wide application prospect.

A liquid ejecting head includes: a flow channel unit including a flow-channel-formed substrate that defines liquid flow channels including pressure chambers communicating with nozzle openings and a sealing plate formed with a diaphragm that varies the capacities of the pressure chambers and a liquid introduction hole, the sealing plate being joined to the flow-channel-formed substrate and defining lines of liquid flow channels including pressure chambers; and a head case including a storage chamber that accommodates a pressure generator for displacing the diaphragm and a case flow channel for supplying liquid to the liquid flow channel of the flow channel unit, the diaphragm being arranged at an opening of the storage chamber on the bottom surface side and the flow channel unit being joined to the head case in a state in which the case flow channel and the liquid flow channel are communicated with each other via the liquid introduction hole, and the sealing plate is formed of a composite plate member formed by adhering an electrically conductive supporting substrate which is joined to the head case and an insulative elastic film joined to the flow-channel-formed substrate to each other, the inner diameter of the liquid introduction hole at least on the side of the supporting substrate is set to be larger than the inner diameter of the case flow channel to form a shoulder portion between the case flow channel and the liquid introduction hole, and an insulating material is secured in the shoulder portion.

A power-efficient soil moisture sensor includes:A moisture sensing element.An alarm device.Sensor circuitry for measuring soil moisture and activating the alarm device when soil moisture reaches a threshold.A powered control timer. The control timer powers the sensor circuitry with a low duty cycle, defined as TON / TOFF with TON / TOFF<<1, hence saving an average consumed power.The alarm device can be an LED and the moisture sensing element is of resistive type. The sensor circuitry drives the moisture sensing element with AC voltages to measure soil moisture while avoiding electrolysis and corrosion at the moisture sensing element. As the measured soil moisture approaches a threshold the sensor circuitry flashes the LED with a gradually increasing intensity. The alarm device can also be an audible speaker (SPK). As the measured soil moisture approaches a threshold, the sensor circuitry pulses the SPK with a gradually increasing volume.

There is provided an apparatus for producing water for preparation of a dialysis solution, including an electrolytic water generation device that performs electrolysis using a solid polymer membrane, and a reverse osmosis membrane treatment device, the electrolytic water generation device being capable of reducing drained water as much as possible, and performing intense electrolysis to increase the amount of dissolved hydrogen without raising pH.

The invention discloses an electrocoagulation device and method for sewage treatment. The electrocoagulation device comprises a container and an electrode assembly, wherein the container is used for containing sewage liquid; and the electrode assembly is arranged in the container. The method is as follows: separating out OH ion and electrode ion by electrolysis because the electrode assembly obtains electrical energy; combining the OH ion and the electrode ion to form flocculant; and carrying out flocculation reaction on the flocculant and the sewage liquid so that harmful substances in the sewage liquid are coagulated to form floccus precipitate for later treatment. The method has the advantages that the OH ion and electrode ion are separated out by electrolysis and combined to generate the flocculant, thus additional flocculant dose not need to be directly added.

The invention discloses a method for separating and recovering silver and palladium from silver-palladium alloy scrap. The comprises the following steps of dissolving and leaching high-silver low-palladium alloy scrap by using nitric acid; conducting selective palladium precipitation on the leachate by adding a first palladium precipitation agent, and filtering to obtain silver-rich filtrate and palladium-rich salt; preparing high-purity silver powder from the silver-rich filtrate by adopting a reduction method; and after palladium-rich salt oxidation acid leaching, adding a second palladium precipitation agent for further purification and recovery. By adopting the recovery method to recover palladium, the problem of entrainment loss of precious metal ions caused by a traditional chlorination precipitation method is optimized, the tedious step of repeatedly washing silver chloride precipitates to recover the precious metal ions is avoided, the recovery process of the palladium is greatly shortened, the recovery rate and purity of the palladium are remarkably improved, meanwhile, the influence of the palladium on recovery of the high-purity silver powder is avoided, the energy consumption can be effectively reduced, the difficulty in wastewater treatment is reduced, and the method is environment-friendly.

The present invention relates to an electrical bare wire continuous heater and a method for controlling the same. The electrical bare wire continuous heater comprises: a channel assembly having a water inlet channel and a water outlet channel which are electrically conductive and electrically connected with earth potential, wherein the channel assembly comprises at least one channel which is used for guiding the water and is not electrically conductive, channel end portions of the channel assembly are respectively provided with the water inlet channel and the water outlet channel; electrical bare wire heating devices for heating the water flowing through the channel assembly; and an electronic control device for adjusting heating power of the bare wire heating devices, wherein the control device comprises an electric conductivity measuring device for determining an electric conductivity value of the water flowing through the channel assembly and is characterized that the control device comprises an evaluation unit used for measuring a hypothetical electric leakage current value based on the electric conductivity value and at least one predetermined device parameter which is limited by the structure type, and the control device is configured to reduce the heating power of the bare wire heating devices as long as the hypothetical electric leakage current value exceeds a predetermined electric leakage current threshold value.

The invention belongs to the technical field of zinc-iodine batteries, particularly provides a four-electron conversion iodine-based electrochemical reaction aqueous zinc-iodine battery, and further discloses an electrolyte capable of realizing four-electron conversion. The electrolyte is an aqueous solution containing Zn<2+> and I<+> stabilizers, wherein the total molar concentration of the Zn<2+> and I<+> stabilizers is not lower than 5M; in addition, the electrolyte further selectively contains an organic solvent. Based on the brand-new conversion mechanism, the performance bottleneck of the existing zinc-iodine battery can be broken through, and the electrochemical performance is effectively improved.

The invention discloses a preparation method of a NiMoP electrode for hydrogen evolution by alkaline electrolysis of water, which comprises the following steps: (1) placing foamed nickel in a strong acid solution for electrochemical corrosion, then taking out the foamed nickel, and cleaning the foamed nickel with ethanol and deionized water in sequence to obtain the foamed nickel after electrochemical corrosion; (2) selecting a nickel salt, a molybdenum salt and a phosphor salt to prepare a NiMoP mixed solution, then adding a buffer agent, and then adjusting the pH value of the solution to 9-10 by using an inorganic base to obtain an electroplating solution; (3) transferring the electroplating solution prepared in the step (2) into an electroplating bath, and carrying out electro-deposition in a hydrogen-rich atmosphere by taking foamed nickel as an anode and taking the foamed nickel subjected to electrochemical corrosion as a cathode; and (4) after the electro-deposition reaction is finished, cleaning the electrode with deionized water, and performing vacuum drying at room temperature to obtain the NiMoP / NF hydrogen evolution electrode. The finally prepared NiMoP / NF hydrogen evolution electrode has excellent HER performance, and has long-time stability in a three-electrode system and a simulated industrial electrolytic cell.

A structure and method for forming a U-clip assembly made of a plurality of U-clips arrayed in a continuous abutting relation, each U-clip having first and second slots defined in its crown portion with first and second soft metal wires positioned, respectively, in such first and second slots, such soft metal wire forming a shallow U shape between adjacent crown portions, such first and second soft metal wires being compressed within their slots to expand within such slots for contacting and urging against the sides and bottom of each slot and being retained therein, such soft metal wire and its shallow U shape between adjacent crown portions allowing the U-clip assembly to maintain a non-curved shape and to be substantially flat in configuration.

The invention discloses an anti-electrowetting effect-based self-cleaning device and method for an oil stain surface. The device comprises a self-cleaning environment device and a regulating power supply which are connected by a lead, wherein the self-cleaning environment device includes a fluid cavity, an oil stain film surface, a dielectric material layer, base metal and low-conductivity fluid;the low-conductivity fluid is held in the fluid cavity, and serves as an operating environment in the self-cleaning process of the oil stain film surface; the dielectric material layer is sprayed to the outer surface of the base metal, and completely wraps the base metal; and the oil stain film surface is tightly attached to the outer surface of the dielectric material layer. According to the anti-electrowetting effect-based self-cleaning device and method for the oil stain surface, by taking a dielectric wetting effect as the basis, the oil stain film surface which needs to be treated is putin the low-conductivity fluid; a liquid-liquid contact angle is formed on the oil stain film surface; by applying impressed voltage, a contact angle at the side of an oil film is rapidly increased; and after a transient contact angle reaches 180 degrees, the oil film is separated from the oil stain film surface under the drive of dynamic energy, and thereby, self cleaning of the oil stain surfaceis realized.

The invention relates to a gel polymer electrolyte, which includes polymethyl methacrylate, and an electrolyte solution and an anhydrous chloride adsorbed in the polymethyl methacrylate. Specifically, in the gel polymer electrolyte, the mass content of the polymethyl methacrylate is 10%-25%, the mass content of the electrolyte solution is 70%-85%, and the mass content of the anhydrous chloride 0.1%-5%. The electrolyte solution comprises lithium biscyanoamide and a plasticizer in a mass ratio of 1:7-1:9, and the plasticizer is formed by mixing of ethylene carbonate and dimethyl carbonate. The anhydrous chloride is at least one of anhydrous magnesium chloride and anhydrous calcium chloride. The gel polymer electrolyte can avoid hydrolysis of the biscyanoamide radical. The invention also provides a preparation method of the gel polymer electrolyte.

The invention provides a manufacturing method of an ink-jet printing digital micro-fluidic chip, which comprises the following steps of: 1, designing an electrode circuit pattern to be printed, and preparing a thin film serving as a dielectric layer; 2, according to the electrode circuit pattern, using an ink-jet printer for carrying out ink-jet printing of nanoscale conductive ink on one face of the dielectric layer so as to carry out single-layer circuit printing or complex circuit printing; and 3, coating the other surface of the dielectric layer with a hydrophobic layer. According to the manufacturing method of the ink-jet printing digital micro-fluidic chip, high-precision resolution ink layer control is carried out by utilizing ink jet of an ink-jet printer, the problems that steps are generated in an electrode gap and liquid is blocked are solved, the problem of separation of an electrode and a lead is solved, and the influence of short circuit in a complex circuit design is effectively avoided. The ink-jet printing process is relatively simple, low in cost and high in precision, is suitable for repeated test requirements of the digital micro-fluidic chip in the research field, can greatly improve the working precision and efficiency of the digital micro-fluidic chip, and has practicability.

The invention provides an ink jet head and an ink jet printer capable of preventing electrolysis of conductive ink. An ink jet head includes a plurality of first sidewalls, a plurality of second sidewalls, a first electrode, second electrodes, a public ink chamber and a control unit. The first electrode is formed on the bottom surface and the side surfaces in a driving pressure chamber, and the driving pressure chamber is formed between the first sidewalls and the second sidewalls. The second electrodes are formed on the side surfaces of a virtual pressure chamber, the virtual pressure chamber is formed between the first sidewalls and the second sidewalls, and the virtual pressure chamber and the driving pressure chamber are alternatively formed. The public ink chamber supplies conductive ink to the driving pressure chamber. The control unit applies a second driving voltage to the second electrodes which makes contact with the first sidewalls and the second sidewalls for forming the driving pressure chamber when a first driving voltage is applied to the first electrode and the ink is ejected from the driving pressure chamber, and when the ink is not ejected from the driving pressure chamber, the second electrodes become high impedance, and waveforms of the second driving voltage are waveforms which are at least partly inverted relative to waveforms of the first driving voltage.

A liquid ejecting head includes: a flow channel unit including a flow-channel-formed substrate that defines liquid flow channels including pressure chambers communicating with nozzle openings and a sealing plate formed with a diaphragm that varies the capacities of the pressure chambers and a liquid introduction hole, the sealing plate being joined to the flow-channel-formed substrate and defining lines of liquid flow channels including pressure chambers; and a head case including a storage chamber that accommodates a pressure generator for displacing the diaphragm and a case flow channel for supplying liquid to the liquid flow channel of the flow channel unit, the diaphragm being arranged at an opening of the storage chamber on the bottom surface side and the flow channel unit being joined to the head case in a state in which the case flow channel and the liquid flow channel are communicated with each other via the liquid introduction hole, and the sealing plate is formed of a composite plate member formed by adhering an electrically conductive supporting substrate which is joined to the head case and an insulative elastic film joined to the flow-channel-formed substrate to each other, the inner diameter of the liquid introduction hole at least on the side of the supporting substrate is set to be larger than the inner diameter of the case flow channel to form a shoulder portion between the case flow channel and the liquid introduction hole, and an insulating material is secured in the shoulder portion.