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89results about How to "Reduce dead area" patented technology

Full-laser grooving and scribing method of large-area copper indium gallium selenide (CIGS) thin-film solar cell assembly

The invention provides a full-laser grooving and scribing method of a large-area copper indium gallium selenide (CIGS) thin-film solar cell assembly. The method comprises steps of using a laser to groove and scribe a molybdenum thin film prepared on soda-lime glass so as to form a first scribed line (P1); successively preparing a CIGS layer, a cadmium sulfide layer and an intrinsic zinc oxide layer on the molybdenum layer where the P1 has been grooved and scribed; after finishing the above film layer preparation, using a laser to perform grooving and scribing so as to form a second scribed line (P2) which is parallel to the P1; and after preparing an aluminum-doped zinc oxide layer on the intrinsic zinc oxide layer where the P2 has been grooved and scribed, using a laser to perform grooving and scribing so as to form a third scribed line (P3) which is parallel to the P1. According to the invention, inner join is performed for the CIGS thin-film solar cell assembly by the laser grooving and scribing method, so defects of large area of dead zones and frequency change of machinery needles in traditional machinery grooving and scribing technology can be overcome, thereby increasing efficiency of the assembly, improving stability of the grooving and scribing device and achieving objectives to reduce production cost and improve production efficiency.
Owner:BEIJING SIFANG JIBAO AUTOMATION

Drum-type sludge turning machine and turning method thereof

The invention relates to a drum-type type sludge turning machine and a turning method of the turning machine, wherein the drum-type type sludge turning machine comprises a frame, a drum mechanism, a travelling mechanism, a lifting mechanism, a cable pulling-pushing mechanism, a wheel-leaning mechanism, a sludge-blocking mechanism and an automatic control system; the drum mechanism comprises a rotary drum and a turning cutter, which is driven by a motor to rotate; the lifting mechanism is of a steeple shape and is driven hydraulically; the wheel-leaning mechanism is arranged outside the frame and contacts the rail surface; the sludge-blocking mechanism is divided into a front sludge-blocking plate, a side sludge-blocking plate, a bottom sludge-blocking plate and a back sludge-blocking plate, which are connected with the frame by bolts; an automatic control cabinet is located at rear of the drum-type sludge turning machine, is connected with the back frame by the bolt and is connected with each action device of the drum-type sludge turning machine by a cable; the method for turning the sludge uses high-speed rotation of the cutter driven by the drum to stir and crush materials and throws the materials to back of the drum-type sludge turning machine.
Owner:BEIJING BRANCH JIKE DEV SCI & TECH

Fuel cell stack flow field plate capable of supporting high-current density discharging

ActiveCN108172857ASmall shape and position errorImprove consistencyCollectors/separatorsFluid fieldEngineering
The invention relates to a fuel cell stack flow field plate capable of supporting high-current density discharging. The fuel cell stack flow field plate comprises a negative flow field plate and a negative flow field plate, wherein back surfaces of the negative flow field plate and the negative flow field plate are oppositely connected, a water ripple-type air flow field passage and a water ripple-type hydrogen flow field passage are respectively processed in front surfaces of the negative flow field plate and the positive flow field plate, a cooling water flow field passage is processed between the back surfaces of the negative flow field plate and the positive flow field plate, a pair of common air passages, a pair of common hydrogen passages and a pair of common water passages are arranged on the negative flow field plate and the positive flow field plate and communicate with each other, and an air inlet/outlet, a hydrogen inlet/outlet and a cooling water inlet/outlet of an inlet port and an outlet port which are connected with the air flow field passage, the hydrogen flow field passage and the cooling water flow field passage are respectively formed. The flow field plate employs more optical runner design, more excellent material formula and more optimal assembly mode, so that the purposes of large-current discharging, temperature uniformity, low-temperature rapid startingsupporting, loading and rapid response to load change are achieved.
Owner:TONGJI UNIV

Hot spraying rare earth aluminum alloy coating steel bar

The invention discloses a hot spraying rare earth aluminum alloy coating steel bar. A hot spraying manner is adopted, and the hot spraying rare earth aluminum alloy coating steel bar is prepared by spraying a rare earth aluminum alloy wire to the surface of a steel bar base body through mechanical rust removal, hot spraying, after treatment and other steps, wherein Si, Li, Ti, B, Mn, rare earth metal and the like can improve hardness, plasticity, tenacity, shielding performance and cathode protection capability of an aluminum alloy and a clad layer. A double-component waterborne polyurethane sealing agent and a finishing coat are adopted for treatment, cleanliness and environment friendliness are achieved, surface drying is rapid, and compatible bonding with concrete is easier due to the surface of the hot spraying rare earth aluminum alloy coating steel bar. According to the hot spraying rare earth aluminum alloy coating steel bar, the common technical problems that according to a current epoxy coating steel bar and a zinc-aluminum clad layer steel bar, the relative bonding strength with concrete is greatly reduced, the steel bar anchoring length is increased by 25%, anti-corrosion durability is insufficient, and notch and damaged positions are hard to repair on the site are solved, and good application prospects are achieved.
Owner:XUZHOU ZHONGKUANG ANFENG ENG TECH

Preparation method of series-parallel thin film battery assembly

The invention discloses a preparation method of a series-parallel thin film battery assembly. The method is mainly characterized in that a piece of TCO conductive glass is equally divided into two parts, which are the same in area, through a laser etching line, wherein the two parts are a series conductive portion and a parallel conductive portion, the series conductive portion is used for carrying out laser scribing on series sub-batteries, the parallel conductive portion is used for carrying out laser scribing on parallel sub-batteries, the series sub-batteries and the parallel sub-batteries are respectively connected by using a drainage strip and a bus bar, and then the series conductive portion and the parallel conductive portion are connected so as to manufacture the required series-parallel thin film battery assembly. According to the preparation method disclosed by the invention, a defect that the film uniformity is poor after large-area film plating is considered, characteristics of a series circuit and a parallel circuit are combined, and problems brought about by film difference and series connection of the sub-batteries are solved. Optimization for electrical parameters is carried out in allusion to a characteristic of high voltage or high current in the electrical parameters of a thin film battery, thereby avoiding influences imposed on such factors as inverter model selection and power station design in power station construction in a later period.
Owner:ZHONGSHAN RUIKE NEW ENERGY CO LTD

Drawing method of thin film solar cell and thin film solar cell device

The invention relates to a drawing method, especially relates to a drawing method of a thin film solar cell and a thin film solar cell device. The drawing method comprises three drawing lines (P2, P3, P1). According to traditional technology, drawing is conducted on a transparent conductive oxide film layer by means of laser. The drawing line (P1) penetrates through the transparent conductive oxide film layer, forming a first groove, and the drawing of drawing lines (P2, P3) is conducted after a semiconductor is coated with a film and before a back electrode is coated with a film. The drawing line (P2) penetrates through the semiconductor film layer, forming a second groove, in parallel with the first groove. The drawing line (P3) is provided with a soluble line which is disposed on the semiconductor film layer and in parallel with the second groove by means of soluble materials, and the soluble line is used as a preparation layer. The drawing device of the thin film solar cell combines a laser drawing device and a soluble line forming device on the same mechanical platform. The drawing device of the thin film solar cell has simple producing technology, low cost and can better cell performance and have long-term stability.
Owner:ZHEJIANG SHANGFANG ELECTRONICS EQUIP

Thermal spraying rare earth alloy coated rebar

The invention discloses a thermal spraying rare earth alloy coated rebar. A thermal spraying mode is adopted, through the steps of mechanical derusting, thermal spraying, post-processing and the like,a rare earth alloy wire is sprayed onto the surface of a rebar substrate to prepare the thermal spraying rare earth alloy coated rebar, the rare earth alloy wire is mainly composed of Zn and Al and evenly added with Si, Li, Cu, Zr, V, Ti, B, Mn, rare earth metals and the like, and the hardness, plasticity and toughness of alloy and a coating as well as the shielding performance and cathode protection performance of a metal thermal spraying coating are improved; a two-component water-based polyurethane sealing agent and finish paint are adopted for processing, and the surface of the rebar canbe compatible with and adhere to concrete more easily; and the production effect is improved by adopting production lines of a structure in a cross shape, in a shape like the symbol '*', in a shape like the Chinese character 'mi' and the like. According to the thermal spraying rare earth alloy coated rebar, the common technical problems that at present, the relative adhesion strength between epoxycoated rebars and concrete as well as between zinc-aluminum coated rebars and concrete is substantially reduced, the anchorage length of the rebars is increased by 25%, the corrosion resistance and the durability are poor, and notches and damaged positions are difficult to repair on site are solved, and the good application prospect is achieved.
Owner:XUZHOU ZHONGKUANG ANFENG ENG TECH

Mining rotor type variable shotcrete machine

InactiveCN105019921AVolumetric Efficiency MaximizationImprove Section UtilizationUnderground chambersTunnel liningShotcreteDrive motor
The invention discloses a mining rotor type variable shotcrete machine. The mining rotor type variable shotcrete machine comprises a frame, a rotor block, a drive motor, a gun head injection pipe and a hopper, wherein a plurality of U-shaped cavities penetrating through the rotor block and having fan-shaped sections are distributed in the rotor block in the circumferential direction; the gun head injection pipe comprises a conical spiral feeding pipe and a conical discharging pipe, one end, with smaller diameter, of the conical spiral feeding pipe is connected with an injection pipe base, and the other end is connected with one end, with larger diameter, of the conical discharging pipe; with the adoption of the U-shaped cavity structures, the fan-shaped cavities replace cylindrical cavities, so that the volume efficiency of the cavities realizes maximum, the section utilization rate of the rotor block is increased, air feeding and material discharging are more continuous and more uniform, the pulse phenomenon of material discharging is greatly reduced, and resilience and dust are reduced. Meanwhile, the gun head injection pipe is spliced by two sections of conical pipes, so that an injection material and water are mixed sufficiently and uniformly, the injection quality is improved, the injection layer is more compact, and homogeneity and strength are improved.
Owner:淮南久辉工贸有限责任公司

Electrode structure for electrochemical device

An electrode component used for an electrochemical appliance comprises a tray-shaped trough main body; a sealing edge extending outwards on the periphery of the tray; a porous electrode covering the tray surface and on the same level as the periphery; and an electric supporting element for connecting the electrode with the back wall of the tray. The technical points are as follows: as an anode component, the anode tray is provided with leading grooves protruding inwards, the leading grooves are provided with electric springs on the inner walls, the two ends of the anode tray are respectively provided with a guide slot equipped with a communicating tube; as a cathode component, the cathode tray is provided with tongues protruding outwards, the two ends of the cathode tray corresponding to the anode tray are respectively provided with a guide slot equipped with a communicating tube, each tongue of the cathode tray are corresponding to the leading grooves on the anode component side; the communicating tubes arranged in the guide slots on the two sides of the trays are connected with a gas-liquid separation chamber on the upper part of the tray, the lower parts of the communicating tubes are connected with an outlet at the bottom of the tray. The structure can protect physical and chemical properties of the film to a greatest extent and prolong the service life of the film and the trough.
Owner:刘国桢

Production method of film solar cell and electro-deposition device thereof

The invention provides a production method of a film solar cell. A first groove is filled with a substance identical with an absorption layer, and the substance of the absorption layer is a semiconductor; the vacancy of a long-strip-shaped contact electrode is directly filled with a substance identical with a back electrode, and the direct contact resistance between the back electrode and the absorption layer is very large, so that no influenced are caused to serial connection of solar cell units; and that is to say, the film solar cell does not need to be filled by an electrical-isolation substance, the electrical-isolation substance does not participate in photoelectric conversion, and the area of a dead area is reduced, so that the occupation of the solar cell by the electrical-isolation substance is avoided, and the photoelectric conversion area of the solar cell is increased. In addition, when the used contact electrode is the long-strip-shaped contact electrode, the long-strip-shaped contact electrode is removed after electro-deposition, then a long-strip-shaped contact electrode vacancy is obtained, and the original groove etching process is omitted, so that the wastes of production materials are reduced, the processes are saved, and the production cost is further lowered.
Owner:BEIJING HI TECH WEALTH INVESTMENT DEV

High-water-resistance flexible internal-series-connection CIGS solar cell and preparation method thereof

The invention discloses a high-water-resistance flexible internal-series-connection CIGS solar cell and a preparation method thereof. The high-water-resistance flexible internal-series-connection CIGS solar cell comprises a flexible substrate; a back protection layer for preventing selenium steam from corroding the flexible substrate; an internal-series-connection CIGS solar cell assembly; an organic-inorganic-alternate multilayer composite water-resistant insulation layer, which is prepared on the bottom portion of the internal-series-connection CIGS solar cell assembly, and comprises a high-density insulation inorganic water-resistant film, an organic acrylate layer I and an inorganic water-resistant film; and an organic-inorganic-alternate multilayer composite water-resistant insulation anti-reflection layer, which is prepared on the top portion of the internal-series-connection CIGS solar cell assembly ,and comprises a high-density high-resistance inorganic water-resistant anti-reflection film, an organic acrylate layer II and an inorganic water-resistant anti-reflection film. The high-water-resistance flexible internal-series-connection CIGS solar cell and the preparation method thereof realize formation of an internal-series-connection cell chip and meanwhile, finish water-resistant oxygen-resistant light-receiving surface anti-reflection package of the device; and the water-resistant oxygen-resistant package film can be deposited in a large area on the same production line with a cell device, thereby reducing water-resistant oxygen-resistant package process difficulty of the flexible cell, and facilitating large-area commercial production.
Owner:绵阳皓华光电科技有限公司
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