2995 results about "Solar battery" patented technology

The invention discloses a trimethoxy-substituted PTAA copolymer as well as a preparation method and application thereof. The structural formula of the trimethoxy-substituted PTAA copolymer is shown as a formula (I), the perovskite solar cell prepared from the trimethoxy-substituted PTAA copolymer disclosed by the invention has relatively high open-circuit voltage, and the energy conversion efficiency of the perovskite solar cell is effectively improved.

The utility model relates to the technical field of hydraulic engineering monitoring, in particular to a water level monitoring device for water resource management, which comprises a stand column, a signal box and a solar cell panel are fixedly connected to the surface and the top end of the stand column, and an adjusting mechanism comprises a first supporting rod hinged to the surface of the stand column. An electric push rod is fixedly connected to the inner wall of the bottom end of the stand column, a sliding groove is formed in the surface of the stand column, and a connecting block is slidably connected into the sliding groove; when the ultrasonic sensor needs to be maintained, the first supporting rod can be directly pulled to rotate through the electric push rod, so that the ultrasonic sensor moves towards the shore while descending, and a worker can conveniently maintain the ultrasonic sensor; the height and the distance between the ultrasonic sensor and the water area to be monitored can be randomly adjusted according to the environment, so that the monitoring data is more practical and more stable.

The invention discloses a solar cell laser scribing track control method, a scribing method and a scribing system.The control method comprises the following steps that a first camera is used for obtaining datum line data at the position L away from the front of a laser device and sending the datum line data and corresponding position data to a control device; when the control device controls the laser to move to the position corresponding to the position data in the first direction, compensation and lineation are carried out based on the datum line data and the preset line spacing, so that the laser carries out lineation along with the datum line; the second camera is used for acquiring a current line spacing between a current processing line and a reference line and sending the current line spacing to the control device, the control device compares the current line spacing with a preset line spacing, the control device obtains correction data according to a comparison result, and the correction data is used for correcting the current processing line according to the correction data. And controlling the movement of the laser based on the correction data and the datum line data of the first camera.

The invention provides a preparation method of a back contact solar cell. The preparation method comprises the following steps: equally cutting a diffused and etched cell into at least two fragments; performing surface texturing on the cut fragments; performing a passivation process on the back surface and the front surface of the fragment, and forming passivation layers on the back surface, the front surface and the cutting surface of the fragment in the passivation process; patterning the fragments on which the passivation layers are formed so as to define alternative P-type regions and N-type regions on the back surfaces of the fragments; and preparing metalized electrodes corresponding to the P-type region and the N-type region on the back surface of the fragment. The problems that in the prior art, the efficiency loss is large, the repairing cost is high, and the whole piece is scrapped due to local defects caused by battery piece cutting can be solved.

The invention relates to the technical field of battery simulation, in particular to a solar battery simulation method and system. The method comprises the following steps: obtaining solar cell structure data; dividing the surface of the battery into a plurality of subunits based on the solar battery structure data, initializing electrical parameters of each subunit, and generating a battery partition parameter set; acquiring global incident light intensity information, and calculating ray tracing of intersection points of rays of each battery surface unit and a plane through the battery partition parameter set to obtain local light intensity distribution data; performing photoelectric conversion parameter mapping on the local light intensity data to obtain partitioned photo-generated current data; and constructing an equivalent circuit model of the solar cell by using the partitioned photo-generated current data. According to the method, the problem of insufficient precision caused by model simplification and uneven illumination in existing solar cell simulation is solved by refining structure partitioning, precise ray tracing, multi-subunit equivalent circuit combination and system performance evaluation.

The invention provides a laminated solar cell and a preparation method and application thereof. The laminated solar cell comprises a bottom cell, a tunneling composite layer and a top cell which are laminated in sequence, the tunneling composite layer comprises a first single-molecule self-assembly layer and a second single-molecule self-assembly layer which are arranged in a stacked mode in the direction away from the bottom cell, and the first single-molecule self-assembly layer and the second single-molecule self-assembly layer transmit charges with opposite electrical properties. The first single-molecule self-assembly layer and the second single-molecule self-assembly layer which are opposite in electrical property are introduced to serve as tunneling composite junctions in the laminated solar cell, tunneling recombination of carriers between the top cell and the bottom cell can be achieved, and the laminated solar cell has the advantages of being low in material cost, low in parasitic absorption, low in damage to a substrate and the like; therefore, a good foundation is laid for the preparation of a high-efficiency and low-cost laminated solar cell, and the laminated solar cell has excellent photoelectric properties.

The invention discloses a PTAA copolymer as well as a preparation method and application thereof. The structural formula of the PTAA copolymer is shown as a formula (I), the perovskite solar cell prepared from the PTAA copolymer has high open-circuit voltage, and the energy conversion efficiency of the perovskite solar cell is effectively improved.

The invention provides a perovskite solar cell. The perovskite solar cell comprises a conductive substrate; a hole transport layer; a polymer hydrophobic layer; the polymer hydrophobic layer is formed by polymer ionic liquid; a perovskite thin film layer; an electron transport layer; an electrode layer; the polymer ionic liquid comprises a structure as shown in a formula (I). Compared with the prior art, the polymer ionic liquid provided by the invention has hydrophobicity and can effectively block invasion of water vapor to a perovskite layer when being applied; secondly, a monomer in the polymer ionic liquid contains imidazole, C-H in the monomer can form hydrogen bonds with halogen atoms in the perovskite, the interaction between a polymer chain and the perovskite is enhanced, and the phase change of the perovskite is inhibited; in addition,-SO3-at one end of the polymer ionic liquid can be combined with Pb < 2 + > in perovskite through electrostatic interaction, phase change of the polymer ionic liquid is further inhibited, and Pb leakage is reduced.

The invention provides a perovskite absorption layer and a preparation method thereof, and a polyion liquid-ion liquid synergistically modified perovskite solar cell, belongs to the technical field of solar cells, and aims to solve the problems of bulk phase and interface defects of the perovskite solar cell. The preparation method of the perovskite absorption layer comprises the following steps: dispersing and dissolving a perovskite precursor, polyionic liquid and ionic liquid into an organic solvent to prepare a perovskite precursor solution; and spin-coating the perovskite precursor solution to form a film, and annealing to obtain the perovskite absorption layer. According to the invention, polyionic liquid (PIL) and ionic liquid (IL) are preferably and synergistically added into a single-junction or multi-junction photovoltaic cell containing perovskite junctions, so that dual passivation of bulk phase and interface defects is realized; and the film uniformity and the photoelectric efficiency are improved.

The invention discloses metallized silver paste for improving sintering dusting of a TOPCon battery, a preparation method and application, and belongs to the technical field of solar battery manufacturing, and the technical scheme is that the metallized silver paste comprises the following components in percentage by mass: 72-87% of a metal phase; 3-9% of a glass phase; 8-12% of an organic carrier; 0.1%-0.5% of a polyimide precursor; 0.1 to 0.5 percent of cerium oxide; wherein the polyimide precursor forms a cross-linked network at a high temperature, the cerium oxide is used as a passivation layer protective agent, and lithium borosilicate glass is also added into the glass phase; according to the metalized silver paste for improving the sintering dusting of the TOPCon cell, the preparation method and the application, the dusting rate is reduced by improving and optimizing materials and process parameters, and compared with a traditional process, the efficiency, the photoelectric conversion efficiency and the yield of the solar cell are further improved.

The invention discloses an indolocarbazole compound, a perovskite solar cell and a preparation method, and belongs to the technical field of perovskite solar cells, the indolocarbazole compound provided by the invention is an organic small molecule material and has an asymmetric molecular structure, and an asymmetric conjugated structure system of the indolocarbazole compound enhances the molecular dipole moment and improves the photoelectric conversion efficiency. And the energy level matching is optimized. Meanwhile, benzene ring groups on side chains of molecules of the organic hole transport layer can further inhibit excessive aggregation of the molecules, uniform coverage is achieved, and efficient transport of carriers is achieved. Therefore, when the indolocarbazole compound organic small molecule material is used as a hole transport layer material for a perovskite solar cell, the energy levels of the highest occupied molecular orbital HOMO and the lowest unoccupied molecular orbital LUMO of the indolocarbazole compound organic small molecule material provided by the invention can be well matched with the energy level of an active layer material; therefore, the collection efficiency of current carriers is greatly improved, and the filling factor and the photoelectric conversion efficiency are improved.

The invention discloses copper paste, an electrode and a preparation method and application of the electrode, the electrode comprises copper powder, the copper powder comprises nano-copper particles and flaky copper powder, the nano-copper particles comprise at least two connected copper nanoparticles, and the adjacent copper nanoparticles are connected in a surface contact mode. According to the electrode disclosed by the invention, the nano-copper particles formed by connecting more than two copper nano-particles are filled in the gap areas among the large-size flaky copper powder, so that the nano-copper particles are in direct contact with the flaky copper powder, conductive channels among the conductive particles are smoother, and the structure of the electrode is more compact due to the filling of the nano-copper particles; the bulk resistance of the electrode is greatly reduced and is equal to the conductivity of a silver electrode; the nano-copper particles can also be used as an auxiliary adhesive after being sintered and cured, so that the adhesive force between the copper grid line and the solar cell is improved, and the connection between the grid line and the solar cell is firmer.

The invention discloses an energy control method and device for a flying vehicle, electronic equipment and a readable storage medium. A solar cell layer, a heat insulation layer and a thermoelectric power generation layer are sequentially integrated on the surface of the flying vehicle from top to bottom, and the method comprises the steps of obtaining first electric energy converted by the solar cell layer in response to the fact that the flying vehicle is located in a light environment, and obtaining second electric energy converted by the heat insulation layer in response to the fact that the temperature difference between the flying vehicle and the external environment is larger than a first preset temperature difference threshold value; acquiring second electric energy converted by the thermoelectric power generation layer; performing voltage conversion on the first electric energy to obtain first target electric energy, and performing voltage conversion on the second electric energy to obtain second target electric energy; charging a battery of the flying vehicle based on the first target electric energy and the second target electric energy; the electrical energy stored in the battery is distributed to the electrical load based on an energy consumption demand of the electrical load of the flying vehicle. The technical problem that the energy source of the flying vehicle is single is solved.

Systems, methods, and articles for a wearable and lightweight portable power case are disclosed. The portable power case is comprised of a cylindrical housing, at least two battery elements connected to a printed circuit board (PCB), and at least one separating barrier between the at least two batteries and the PCB. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, a tablet, a portable satellite dish and / or any other power consuming device. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and / or generators.

The invention discloses a hole transport layer, a preparation method thereof and a solar cell. The hole transport layer comprises an SAM (single self-assembled monomolecular layer) material and a buried material, and the buried material comprises F-type phosphate group-containing molecules. According to the invention, the technical problems of poor coverage of a hole transport material SAM on a transparent conductive oxide (TCO) substrate and weak transmission capability in a perovskite cell or a laminated cell in the prior art can be solved. The hole transport layer is more uniform, the interface transmission loss is smaller, and the filling factor and the conversion efficiency are remarkably improved when the hole transport layer is used for the solar cell.

The invention discloses a vibration displacement sensor system for bridge operation monitoring and a use method thereof, and belongs to the technical field of bridge engineering. The system comprises data acquisition ends and data receiving and processing ends, the data acquisition ends are fixed to bridge piers, bridge abutments or the side faces of beam slabs, each data acquisition end comprises a capacitive acceleration sensor, a microwave signal antenna, a double-lithium battery pack and a solar cell panel, and the data receiving and processing ends are installed at stable positions of the two banks of a bridge. Comprising a multi-channel microwave receiving module, an edge computing unit, a 4G / 5G / LoRa / NB-IoT multi-network transmission module and a phase difference computing module. According to the invention, the problems of insufficient stability and poor environmental adaptability of existing data transmission are solved. According to the invention, through integration of temperature compensation, anti-interference communication, intelligent power supply optimization and rapid installation design, high-precision, all-weather and low-power-consumption monitoring is realized.

The invention relates to the field of battery packaging, and particularly provides a packaging structure and method of a perovskite solar battery. A scribing groove is formed in a top electrode of a perovskite solar cell to be packaged, a transparent substrate is arranged at the bottom of the perovskite solar cell, the packaging structure sequentially comprises a first packaging layer, a second packaging layer and a third packaging layer from bottom to top, and a second packaging layer and a third packaging layer are arranged on the side periphery of the perovskite solar cell. The lower end of the second packaging layer and the lower end of the third packaging layer make contact with the transparent substrate, the first packaging layer is arranged in the scribing groove, the second packaging layer is arranged on the surface of the top electrode, the third packaging layer is arranged on the surface of the second packaging layer, and the elastic modulus of the first packaging layer is larger than that of the second packaging layer. According to the packaging structure, thermal stress can be absorbed and dispersed, thermal stress concentration is avoided, splitting is not likely to occur, and the packaging effect is good.

The invention relates to the technical field of solar cells, in particular to a CZTSSe absorption layer film and a preparation method and application thereof, and the preparation method comprises the following steps: S1, preparing a CZTS precursor solution of a DMF solution system; s2, preparing a CZTS precursor film by adopting a sol-gel method; and S3, coating the CZTS precursor thin film with a NaF solution with the concentration of 0-0.2 mol / L, and then carrying out drying and selenylation treatment to obtain the CZTSSe absorption layer thin film. According to the invention, the CZTS precursor film prepared by using the green and environment-friendly solvent DMF is used for carrying out a NaF solution spin-coating annealing process, so that the improvement of the battery efficiency is successfully realized. The change of CZTSSe film element redistribution, defect chemical environment and grain boundary potential difference after the Na element is doped is avoided.

The invention discloses a solar cell and a preparation method thereof, the preparation method comprises the following steps: a silicon substrate is provided, the silicon substrate comprises a first surface and a second surface which are oppositely arranged, and the second surface comprises a first area and a second area; sequentially preparing a tunneling layer, a second doping layer, a barrier layer and a third doping layer on the second surface; annealing the silicon substrate on which the tunneling layer, the second doping layer, the barrier layer and the third doping layer are deposited; processing the third doping layer on the first region by adopting a laser process, and forming an oxide layer on the surface of the third doping layer on the first region; removing at least part of the third doped layer on the second region and the oxide layer on the first region by adopting a chemical etching process, and reserving the third doped layer on the first region; and preparing a second electrode in contact with the third doped layer on the first region. The passivation effect can be considered, parasitic absorption can be reduced, and the cell efficiency and the double-sided rate are remarkably improved while the process window is improved.

The embodiment of the invention provides a connecting layer, a composite layer, a solar cell and a laminated cell. The connecting layer comprises a first transparent conductive layer and a hole transport layer which are stacked; and the hole transport layer is an alloy film containing Ga, Al, In, Sn, O and N elements. Component regulation and control are carried out on the hole transport layer, P-type doping is realized by utilizing a co-doping strategy, the hole concentration of a traditional tin oxide material layer is improved, long wavelength absorption is not remarkably increased, and in addition, multi-component doping can also avoid that a single component is easy to separate out and split phases.

The invention provides a performance prediction method and system for a full-flow process of a copper-indium-gallium-selenium solar cell, and the method comprises the steps: obtaining experimental data covering a complete device structure and a preparation process, removing redundant features through data cleaning, standardization and feature correlation analysis, introducing an SHAP game theory method to analyze a model, and carrying out the optimization of the performance of the whole-flow process of the copper-indium-gallium-selenium solar cell. Quantifying the marginal contribution degree of the process parameters to the photovoltaic performance; and finally, determining a parameter convergence interval of the high-efficiency device by using a parallel coordinate technology, and outputting a performance prediction value. According to the method, the modeling problem of the copper-indium-gallium-selenium solar hybrid heterogeneous data is effectively solved, the prediction result is ensured to conform to the physical law of a device through physical constraint, the trade-off effect among complex process parameters is revealed, clear parameter guidance is provided for efficient battery preparation, and the trial and error cost is greatly reduced.

The invention discloses an electrolyte for improving the cycling stability of a zinc-sulfur battery and application of the electrolyte in a photoelectric storage integrated battery. The electrolyte comprises a solvent, an additive and zinc salt, the additive is iodide, and the iodide comprises iodine negative ions and positive ions or polar functional groups. The functional additive is added into the electrolyte, positive ions inhibit dendritic crystals and side reactions of zinc, and iodine negative ions accelerate reversible change between sulfur and zinc sulfide, so that the cycling stability of the zinc-sulfur battery is improved. A zinc-sulfur battery with high specific capacity and long cycle life is integrated with a solar battery, so that the photoelectric storage integrated battery with high overall conversion efficiency, high specific capacity and long cycle life is prepared.

The present disclosure provides a solar cell and a method for preparing the same. The solar cell includes a semiconductor substrate, a first heavily doped layer, a front electrode, an emitter layer, and a back electrode. The first heavily doped layer and the front electrode are disposed on the front surface of the semiconductor substrate. The first heavily doped layer is disposed between the front electrode and the semiconductor substrate. The emitter layer is disposed between the back electrode and the semiconductor substrate.

The invention discloses a method for preparing a solar cell by inhibiting perovskite iodine migration and modifying a thin film through a piperazine derivative, and belongs to the technical field of perovskite solar cells. According to the method, a piperazine derivative is used between a perovskite layer and an electron transport layer, so that the piperazine derivative has the functions of modifying a perovskite thin film and inhibiting iodine migration. A modified perovskite light absorption layer is obtained by spin-coating a piperazine derivative solution on the surface of perovskite. The piperazine derivative can act with the iodine simple substance generated after the perovskite material is degraded, and decomposes the iodine simple substance to generate iodide ions, so that further degradation of the perovskite film is prevented, contact between the iodine simple substance and a silver electrode is reduced, and the stability of perovskite is improved. Meanwhile, the material can effectively passivate lead site defects on the surface of the perovskite thin film, and non-radiative recombination generated at the defects is reduced. According to the method, perovskite degradation and silver electrode damage caused by iodine elementary substance volatilization can be effectively inhibited, and an efficient and stable perovskite solar cell device is finally obtained.

The invention relates to the technical field of micro aircrafts, in particular to an atmospheric potential energy self-sustaining aircraft. Comprising a stator component provided with a positive electrode and a negative electrode which are distributed crosswise in the circumferential direction; a rotor member having a conductive sheet; the conducting strip can obtain charges from the positive electrode or the negative electrode of the stator part, so that the rotor part is driven to rotate; the rotor wing assembly is connected to the rotor component; the positive charge collecting part is electrically connected with the positive electrode and used for collecting positive charges in the atmosphere and supplying the positive charges to the positive electrode; and the grounding part is electrically connected with the negative electrode and is used for grounding the negative electrode. By arranging the positive charge collecting component and the grounding component, the aircraft can directly obtain electric energy from an atmospheric electric field, and the natural potential difference between the high altitude and the ground is used for driving the rotor component to rotate, so that continuous power is provided for the aircraft. The mode does not depend on a traditional storage battery or a solar cell, the problems that an existing micro aircraft is short in endurance time and limited by light conditions are solved, and cross-day and cross-night continuous flight can be achieved.

Systems and methods directed to solar power-assisted hybrid battery balancing are disclosed. For example, operating the solar power-assisted hybrid battery balancing system includes determining accessibility of solar power from a plurality of solar panels and in response to determining solar power is not accessible, activating one or more arrangements of a plurality of switches to enable a battery balancing process including redistribution of stored energy among a plurality of battery cells to maintain a balanced state-of-charge across the plurality of battery cells and transferring of charge between battery cells via a capacitor coupled to output terminals of a solar charge controller. The method includes, in response to determining solar power is accessible, activating one or more other arrangements of the plurality of switches to enable a solar battery balancing process including directing of solar-generated electrical energy among the plurality of battery cells to maintain the balanced state-of-charge.

The invention relates to an anti-radiation five-junction solar cell and a preparation method thereof, and belongs to the technical field of semiconductor devices. The radiation-proof five-junction solar cell comprises a substrate, and a first buffer layer, a first component order change buffer layer, a fourth sub-cell, a second component order change buffer layer, a fourth tunnel junction, a fifth sub-cell and an electrode contact layer which are sequentially stacked on a first surface of the substrate, a second buffer layer, a third tunnel junction, a third sub-cell, a second tunnel junction, a second sub-cell, a first tunnel junction, a first sub-cell and a cap layer are sequentially stacked on the second surface of the substrate; and the base region thicknesses of the second sub-cell, the third sub-cell and the fourth sub-cell are smaller than the respective emitter region thicknesses. The anti-radiation five-junction solar cell comprises a plurality of sub-cells with quantum well structures, so that the anti-radiation performance of the solar cell can be effectively improved, and the last-stage use efficiency of the solar cell is further remarkably improved.

A solar cell is disclosed. The solar cell includes a substrate, a dielectric layer formed on a backside of the substrate, and a plurality of non-contiguous deposited emitter regions having a first polarity on the dielectric layer. The solar cell further includes at least one deposited emitter region having a second polarity on the dielectric layer, the at least one deposited emitter region being laterally arranged with the plurality of non-contiguous deposited emitter regions.

The invention relates to the technical field of solar aircrafts, and discloses a novel autonomous heat dissipation wing structure for inhibiting thermal runaway of a solar aircraft, which comprises a wing, a heat dissipation structure and a solar battery pack, the wings are mounted on the fuselage, airflow channels are formed in the wings, air inlets are formed in the front parts of the wings, flow guide structures are mounted in the air inlets, and exhaust rectification groups are mounted at wingtips of the wings; the heat dissipation structure comprises a carbon-copper hybrid skin and a plurality of metal beams; the carbon-copper hybrid skin is arranged outside the wing in a sleeving mode, and the multiple metal beams are installed in the wing at intervals and arranged in the length direction of the wing. A plurality of beam holes are formed in the metal beam; and the solar battery pack is mounted on the surface of the carbon-copper mixed braided skin and is used for supplying power to the fuselage. Efficient heat dissipation can be achieved without extra energy, the thermal runaway risk is fundamentally restrained, the wings are high in structural strength and light in weight, and the resistance of the aircraft is reduced.

To provide an attachment structure of a solar cell module allowing replacement of solar cell modules to be easily carried out.SOLUTION: An attachment structure of a solar cell module 1 including a perovskite chemical compound is provided with: a projected part 51 attached on a wall part 110 of a balcony 100 and projecting in an outdoor direction from the wall part 110; and a gripping part 52 projecting in a direction intersecting to the projecting direction of the projected part 51 to grip the solar cell module 1 along an extending direction of the wall part 110, wherein the gripping part 52 has a pair of nail parts 52a detachably holding the solar cell module 1 from both sides in a thickness direction.SELECTED DRAWING: Figure 4