39results about How to "Increase discharge current" patented technology

An air cathode having a multilayer structure is composed of at least one substrate, two diffusion layers and three activation layers. The two diffusion layers are laminated over an upper side of the substrate and a lower side of the substrate. The three activation layers are respectively laminated over one of the two diffusion layers in order. Different loadings or different kinds of catalysts are added into a slurry to form the activation layers, and the activation layers and the diffusion layers are made through simultaneous sintering, thereby shortening the processing time. When the air cathode is used as the cathode of the Zinc-Air battery, the electrolyte inside the Zinc-Air battery will not be influenced by the outside air, and the problem of maintaining the water content of the zinc anode of the Zinc-Air battery can be efficiently overcome.

The invention relates to a pulse plasma thruster with a ceramic nozzle on the side wall, comprising: a high-voltage power supply, an energy storage capacitor, a propellant, a ceramic nozzle, an anode, a cathode, a semiconductor spark plug, an ignition control circuit board, and a feed spring. Wherein, the nozzles are wedge-shaped, and are installed in pairs on the side between the anode and the cathode on the inner wall of the thruster casing, and the installation position is as close as possible to the surface of the propellant. The end face of the ceramic nozzle near the electrode is designed to have a 45° chamfer. This type of nozzle can effectively improve the acceleration performance of the slow neutral gas during the working process of the thruster. At the same time, compared with the electrode-type nozzle, the side-wall nozzle can minimize the influence of the nozzle on the discharge channel, reduce the resistance of the main discharge circuit and obtain a higher discharge current. The new nozzle can reduce the loss of electromagnetic acceleration force and obtain higher thrust and work efficiency.

The invention relates to a high-energy accumulator of active nano carbon fiber belonging to technique of accumulator. It is composed of battery jar, capping, electrolyte, positive and negative polar plates, diaphragm and positve and negative electrodes. The positive polar plate consists of grating of aluminium plate and layer of active nano carbon fiber. The negative polar plate consists of grating of copper plate and layer of active nano carbon fiber. Diameter of the carbon fiber is 20-300nm. Spacing intervals of each group of positive, negative polar plates and diaphragm are small so as to provide large capacity. It is Equivalent to parallel connectino between the large capacity and accumulator. The diaphragm is prepared by use of macromolecular non-woven fabric with high dielectric strength.

The invention discloses a high-voltage static module for fume separation and an extractor hood with the high-voltage static module. The high-voltage static module comprises a static electrode and a collection electrode. A fume channel is formed in an insulation outer frame of the static electrode. First electrode plates and second electrode plates in mutual electric isolation are arranged in the insulation outer frame. The first electrode plates and the second electrode plates extend along the fume channel. The multiple first electrode plates and the multiple second electrode plates are arranged and are arranged in a staggered manner. Electric isolation space is formed between the adjacent first electrode plates and second electrode plates. A sawtooth shape is formed on one side of each first electrode plate in the direction of the fume channel. The collection electrode is used for collecting fume particles which are electrified in the fume channel and flow into collection space. According to the high-voltage static module for fume separation, the separation degree of fat in fumes can be increased, accumulation of the fumes in a draught fan pipeline can be reduced, and the service life of the extractor hood can be prolonged.

The invention discloses an insulated gate bipolar transistor (IGBT) driving push-pull circuit, which mainly comprises an NPN triode (Q1), a PNP triode (Q2), a charging resistor (R5) and a discharging resistor (R6), wherein one end of the charging resistor (R5) is connected to an anode of an input power supply (VDC1), and the other end of the charging resistor (R5) is connected to a collector (c1) of the NPN triode (Q1); an emitter (e1) of the NPN triode (Q1) and an emitter (e2) of the PNP triode (Q2) are connected to form a point and connected with a gate (G) of an IGBT; the emitter (e2) of the PNP triode (Q2) is connected with one end of the discharging resistor (R6); and the other end of the discharging resistor (R6) is connected with the ground of a power supply (VDC2). By adoption of a push-pull circuit structure, in the turn-on moment of the IGBT, the NPN triode works in a saturation area, charging current is improved, and the loss of the NPN triode is reduced; and in the turn-off moment of the IGBT, the PNP triode works in the saturation area, discharging current is improved, and the loss of the PNP triode is reduced.

The invention discloses a processing device for a wire diamond-like coating. The processing device comprises a paying-off coil used for wire paying-off and a take-up coil used for take-up connection and further comprises a diamond-like coating discharge tube arranged between the paying-off coil and the take-up coil and used for processing the diamond-like coating on a wire. The diamond-like coating discharge tube comprises a discharge tube main body which comprises a magnetic solid boot ring, an insulating sleeve, electrodes and a water cooled jacket. A plurality of sets of magnets are mountedon the magnetic solid boot ring, and magnetic solid boot rotating teeth are fixed to the magnetic solid boot ring and externally connected with a transmission structure so that the magnetic solid boot ring can be rotated. Magnetron sputtering can be conducted on the surfaces of miniature pieces and wire pieces to achieve PECVD of the diamond-like coating under the high vacuum, and large-beam flows can further be generated on the miniature pieces and the wire pieces to achieve high-ionization spraying of the wire diamond-like coating through annular tube gas discharge under the low vacuum.

The invention discloses a safety lead storage battery comprising a casing. The casing is internally provided with a positive electrode and a negative electrode, the top end of the positive electrode is a positive output electrode, the negative electrode is a negative output electrode, the positive electrode and the negative electrode are in an electrolyte, a flexible flocculent fiber insulation mat is disposed in the electrolyte, and a silicon separator is connected between the positive output electrode and the negative output electrode. The safety lead storage battery has a reverse conductingfunction by adding the silicon separator, therefore, the problem of the permanent damage to the lead storage battery caused by the phenomena of the falling of a battery plate and the breakdown of anion separator brought by a reverse charging phenomenon is solved, the problems of electrolyte leakage and incomplete sealing are solved by replacing the ion separator with the flexible flocculent fiber insulation mat, the corrosion damage to equipment caused by leakage of the electrolyte is avoided, and the lead storage battery is protected.

The invention discloses a coaxial hollow cathode discharge fraction hydrogen catalytic reaction generator, and belongs to the novel hydrogen energy research field. The generator solves the problem of low fraction hydrogen reaction intensity because improvement on plasma density and temperature cannot be realized during acquiring the fraction hydrogen by adopting the conventional hollow cathode discharge mode. A double-cylinder cathode and a single-cylinder anode are positioned in a reaction vacuum tube and arranged coaxially with the reaction vacuum tube, the bottom of the double-cylinder cathode extends into the upper port of the single-cylinder anode or is arranged opposite to the upper port of the single-cylinder anode, the center of the lower bottom surface of the single-cylinder anode is provided with an anode circular hole, and side walls of the single-cylinder anode are fixedly connected with a tungsten rod binding post respectively; and an inner cylinder of the double-cylindercathode extends from an outer cathode hole in the center of the upper bottom surface of an outer cylinder and is hermetically fixed with the outer cylinder, the upper end of the inner cylinder is positioned outside the outer barrel and fixedly connected with one end of a bracket, the other end of the bracket is fixedly connected with the two tungsten rod binding posts, and the two tungsten rod binding posts pass through the upper bottom surface of the reaction vacuum tube.

The invention discloses a spiral cathode wire for an electrostatic precipitator. The spiral cathode wire comprises a cathode wire body (1), wherein the cathode wire body (1) is formed by folding a sheet body along the length direction into a body with a Z-shaped section in the width direction and then twisting the body with the Z-shaped section into a spiral body, and a sharp-corner-shaped discharge sharp end (2) is arranged on the spiral part of the cathode wire body (1). The cathode wire body is formed by folding the sheet body along the length direction into the body with the Z-shaped section in the width direction and then twisting the body with the Z-shaped section into the spiral body and the sharp-corner-shaped discharge sharp end (2) is arranged on the spiral part of the cathode wire body (1), so that the cathode wire has the characteristics of low corona voltage and high discharge current, is capable of changing gas into a turbulent flow by means of a baffling channel on the cathode wire body to increase thrust of the gas towards a dust collecting electrode, and facilitates the acting of electric field force; dust collected by the cathode wire is difficult to adhere and convenient to clean; the cathode wire has the characteristics of being simple in structure, easy to manufacture and install, and suitable for popularization and use.

The invention relates to a rechargeable aluminum air battery based on sunlight assistance and a preparation method thereof. According to the technical scheme, the method comprises the following steps: preparing an air photoelectrode: preparing a mixed solution of potassium iodide and bismuth nitrate pentahydrate, adjusting the pH value by using dilute nitric acid, dropwise adding a prepared p-benzoquinone ethanol solution into the solution, stirring, depositing BiOI on conductive glass by using an electro-deposition method, performing washing, and performing airing; finally, dropwise adding a dimethyl sulfoxide solution of vanadyl acetylacetonate onto BiOI, calcining, performing cooling to room temperature, immersing into a NaOH solution, washing with deionized water, and performing natural airing to obtain the BiVO4 photoelectrode. The material with excellent photocatalytic activity and stability is prepared, and the charging voltage can be greatly reduced by introducing sunlight. According to the invention, collaborative conversion of solar energy, chemical energy and electric energy is realized, and a new way is opened up for the rechargeable aluminum air battery.