250results about How to "Not easy to short circuit" patented technology

The invention provides a lithium-ion battery separator, and a preparation method and application thereof. The lithium-ion battery separator comprises a separator substrate and an aqueous function layer composited on the surface of the separator substrate. The aqueous function layer is equipped with multiple micropores. The aqueous function layer has viscidity. When the separator provided by the embodiment of the invention is applied to a polymer lithium-ion battery, a partial lithium separation phenomenon will not occurs in a cycle process and deformation or a relatively high expansion phenomenon will not occur in a battery pole group, thereby facilitating stability of cycle life. Moreover, the heat contractility of the separator is improved. The separator and an electrode are adhered together well with the combination of effects such as the viscidity of the aqueous function layer. In a safety test process or when the battery is abused such as the fact that the battery is punctured, extruded, twisted and bended, or when the battery is used in a high temperature environment for a long time, the safety performance of the battery can be greatly improved.

The invention discloses a method for preparing a copper indium gallium selenide thin film battery, which comprises the following steps of: forming a metal back electrode layer on one side of a glass substrate; emitting a first laser beam penetrating the glass substrate from the side of the glass substrate away from the metal back electrode layer so as to form a first groove penetrating the metal back electrode layer; forming a copper indium gallium selenide light absorbing layer on the metal back electrode layer and the surface of the first groove; forming a buffer layer on the copper indium gallium selenide light absorbing layer; forming a barrier layer on the buffer layer; emitting a second laser beam to etch the barrier layer so as to form a second groove reaching the metal back electrode layer; forming a window layer on the barrier layer and the surface of the second groove; and emitting a third laser beam to etch the window layer so as to form a third groove reaching the metal back electrode layer. The copper indium gallium selenide thin film battery prepared by the method has the advantage of low possibility of generating short circuit.

The invention discloses a wavy subsurface-flow constructed wetland landscape water body treatment system and method. The system combines a horizontal subsurface-flow constructed wetland with a vertical subsurface-flow constructed wetland to form a wavy subsurface-flow constructed wetland. By means of regularly arranging upper clapboards and lower clapboards inside the wetland and replacing a horizontal flow state with a wavy flow state, sludge flows in a plurality of modes which are connected in series and alternate in upstream and downstream flows, so that organic nutrient substances are sufficiently degraded to remarkably promote deposition of phosphorus; the sludge is repeatedly subjected to anaerobic and aerobic treatment, so that removing of nitrogen can be facilitated; appropriate limestone is added into the filler of the wetland to release Ca<2+>, so that phosphorus in the sludge generates insoluble deposition of calcium phosphate, and thus the removal rate of phosphorus is increased. Due to the adoption of modes, such as intermittent water distribution, water inflow to a water distribution pipe by forming openings in the bottom as well as serial or parallel operation of a plurality of wavy subsurface-flow constructed wetlands, the bed body of the constructed wetland plays a relatively large efficiency, the removal rate of nitrogen phosphorus and organic matters is increased and the sludge treatment capability is enhanced.

The invention discloses a battery monitoring method and system. The battery monitoring method comprises the following steps of obtaining an energy change curve of a battery, wherein the energy changecurve represents an energy change of the battery during charging or discharging under an ideal state, each energy value of the energy change curve corresponds to one temperature difference value of the battery, and a fiber bragg grating temperature sensor is arranged on the battery; acquiring temperature values of the battery during the charging or discharging through the fiber bragg grating temperature sensor, and calculating a first temperature difference value between two temperature values of the battery in a preset time period; obtaining first electric energy, charged or discharged in thepreset time period, of the battery; and obtaining a first energy value corresponding to the first temperature difference value from the energy change curve, judging whether an absolute value of a difference value between the first energy value and the first electric energy is greater than or equal to a first preset threshold value or not, and if the absolute value of the difference value is greater than or equal to the first preset threshold value, ending power supply of the battery and outputting alarm information. The method and system are capable of improving the correctness of battery monitoring data and improving the safety of batteries during the work.

The invention provides a rotary conducting structure. The rotary conducting structure comprises an inner insulation sleeve and an outer insulation sleeve, the axes of the inner and outer insulation sleeves extend in the front and back direction, the inner insulation sleeve is arranged coaxial with the outer insulation sleeve, and at least one bearing is arranged in an annular space formed between the inner and outer insulation sleeves. Each bearing includes a circumferentially enclosed bearing outer ring, a circumferentially enclosed bearing inner ring and a conducting ball, wherein the bearing outer ring is fixedly assembled at the internal circumferential surface of the outer insulation sleeve, the bearing inner ring is fixedly assembled at the external circumferential surface of the inner insulation sleeve, and the conductive ball is connected between the bearing inner ring and the bearing outer ring. The bearing inner and outer rings of the rotary conducting structure are enclosed circumferentially and fixed to the inner insulation sleeve and the outer insulation sleeve which are arranged coaxially, the radial sizes of the different positions of the annular space formed between the bearing inner and outer rings are the same, the ball makes stable and unchanged contact with the bearing inner and outer rings when rotating circumferentially in the annular space in a circulated manner, and the rotary conducting performance is high.

The invention discloses an ionizing gas sensor based on a discharge electric field with a micro-gap polarization structure. The ionizing gas sensor comprises an external circuit electrode couple, the polarization structure and a material with a large length-diameter ratio, wherein the polarization structure is arranged at the area between the external circuit electrode couple; and the material with large length-diameter ratio is at least arranged on one of the polarization structure and the external circuit electrode couple. When the ionizing gas sensor works, lower voltage is only needed to be loaded onto electrodes of an external circuit, and the electric field which is enough to ionize target gas molecules is generated between the polarization structure and the electrodes of the external circuit by the polarization action of the polarization structure, so that the working voltage of the sensor is effectively reduced. Compared with the micro-gap structure between the external circuit electrode couple in the prior art, the ionizing gas sensor effectively solves the problems of instability and failure caused by contaminants such as dust, fiber and the like which fall into a micro-gap, and the signal to noise ratio and the sensitiveness are improved.

The invention discloses a uranium-bearing low-temperature molten salt system, a preparation method thereof and an application of the system to the field of electrolytic preparation of metallic uranium, and aims to solve the problems that in current spent fuel dry reprocessing, an LiCl-KCl-UCl3 molten salt system within the temperature range of 400-500 DEG C is usually adopted, uranium is refined by molten salt electrolysis to generate structurally loose dendritic metallic uranium, short circuit of an electrolytic tank is easily caused, and large-scale continuous production cannot be realized.The metallic uranium electrolytically prepared by the uranium-bearing low-temperature molten salt system is high in purity and compact in structure and in the shape of a nodule (but the metallic uranium prepared by the LiCl-KCl-UCl3 molten salt system is structurally loose and dendritic and has essential difference from the metallic uranium electrolytically prepared by the uranium-bearing low-temperature molten salt system), and the electrolytic refining process is safe and controllable, can be applied to development of industrial spent fuel dry reprocessing technology to meet the requirementsof Chinese industrial continuous production of high-purity metallic uranium, and has a good application prospect. Further, the uranium-bearing low-temperature molten salt system is simple in production process, low in equipment and experimental condition requirement, low in energy consumption and pollution, has a good application prospect and is worthy of large-scale popularization and application.

The invention relates to a preparation method of a thin film single thermal battery with a central hole. The thin film single thermal battery comprises a die body. The preparation method comprises the steps of firstly, sequentially placing a collector plate with a central hole and an inertia current blocking ring in the die body from bottom to top; secondly, sequentially placing a negative electrode thin film sheet and an electrolyte separator sheet in the current blocking ring; and finally, placing a positive electrode thin film sheet at an upper end of the inertia current blocking ring, and moving the inertia current blocking ring to a hydraulic machine for pressing and formation. The preparation process of the single thermal battery is simplified, the prepared single battery has the advantages of small size, fast activation, high-overload impact resistance, stable electrical property and the like, the production efficiency can be effectively improved, the battery manufacturing cost is reduced, and the single battery has relatively good application prospect.

To provide a highly reliable variable resistor for hardly generating a short-circuit failure between terminals even if insert-molding an insulating substrate in a housing made of synthetic resin. This variable resistor is provided with a plate-shaped insulating substrate 7 formed with a resistor 8 and a collector 9, a plurality of mounting holes 7b formed at one edge side of the insulating substrate 7, a plurality of terminals 10 fixed to the plurality of mounting holes 7b so as to be conducted to the resistor 8 and the collector 9, and extended from one edge side of the insulating substrate 7 to the outside, a holding member 11 made of synthetic resin in which the fixed sections of the plurality of terminals 10 and the insulating substrate 7 are embedded in such a status that the resistor 8 and the collector 9 are exposed and a slider 6 sliding on the resistor 8 and the collector 9 and an insulating protrusions 11b and 11c extended to a direction crossing the plane face of the insulating substrate 7 between fixed sections of the plurality of terminals 10 fixed to the insulating substrate 7.

The invention provides an LED integrated circuit module and an LED display screen using the LED integrated circuit module. The LED integrated circuit module comprises LED chips and circuit lead feet arranged on the edge of the LED integrated circuit module; the circuit lead feet are connected with each LED chip; the circuit lead feet arranged on the opposite two sides of the LED integrated circuit module are arranged in malpositions. The circuit lead feet arranged on the opposite two sides of the LED integrated circuit module provided in the invention are arranged in malpositions, thereby reducing the risk of short circuit of the two LED integrated circuit modules when the circuit lead feet are welded, enabling the spacing between the LED integrated circuit modules to be set more compactly, reducing the pixel spacing of the LED display module and improving the resolution ratio and display quality of the LED display module.

The invention discloses a rectifier grain, a production method thereof and a suction cup mould. The grain is in the shape of a regular hexagon. The production method for the grain comprises the following steps of: coating a photo-resist; adhering an MASK film; exposing; making a GPP film; arranging a glass sheet; waxing a chip; arranging a baffle; adhering the baffle; accurately aligning; cutting by sand blasting; and separating the grain. The suction cup mould comprises an upper die and a lower die, wherein the upper and lower dies are detachably connected with each other so as to form a cavity which can be vacuumized; the upper surface of the upper die is provided with a notch; the bottom surface of the notch is provided with a plurality of regularly hexagonal counter bores which are cellular and arranged closely; and each counter bore is communicated with the cavity. By using the structure and the method, the rectifier grain, the production method and the suction cup mould have the advantages that: firstly, the area utilization of the grain is improved, the product is durable, and the impact resistance is enhanced; secondly, the point discharge effect is reduced and the backward voltage resistance of the product is enhanced; and thirdly, the edge of a glass trench of the grain which is cut by the sand blasting method is tidy and the electrical performance is better protected.

The invention relates to a power testing device which comprises a first adapter, a first testing board, a second adapter and a second testing board, wherein the first testing board is connected with the first adapter, and the second testing board is connected with the second adapter. In the power testing device, signal terminals in a power supply unit are respectively connected to the first testing board and the second testing board through the first adapter and the second adapter, and the voltage of all terminals of the power supply unit can be tested through testing the pin voltage of both the first testing board and the second testing board.

The present invention discloses a heater structure of magnetron injection gun, which relates to microwave technology. The heater is formed by the circular ring circled by spiral cylindrical tungsten filaments or rhenium tungsten filaments. First structure of the heater is that two semicircles are formed by spiral cylindrical tungsten filaments or rhenium tungsten filaments; the two ends of each semicircle are provided with a bar-shaped lead; and a circular ring is then formed by fixedly connecting the four bar-shaped leads in pairs. The second structure is that the spiral cylindrical tungsten filaments or rhenium tungsten filaments are shaped into a circular ring, of which the two ends are provided with straight-bar-shaped leads having a clearance arranged therebetween. The heater structure of the present invention is applicable to various magnetron injection guns of gyrotron, and the processing technology is easy and convenient. Moreover, the heater is high in heating efficiency and is unlikely to bring about short-circuit failure.