291 results about "Energy materials" patented technology

The invention provides a precast beam field production process carbon emission calculation method, and relates to the technical field of carbon emission calculation, and the method comprises the steps: combing construction production carbon emission sources, and determining a carbon emission quantification accepting and rejecting criterion based on the complexity, importance and contribution degree of the carbon emission sources; determining a time boundary, a space boundary and an emission source boundary; constructing a prefabricated beam field construction production carbon emission chemical index system comprising a first-level index, a second-level index and a third-level index; analyzing internal characteristics and adaptive scenes of existing energy and material carbon emission factors, correcting and optimizing carbon emission factors of fossil energy, electric power and outsourcing materials by combining an energy structure, regional electric power characteristics and precast beam field building material use characteristics, and establishing an emission factor library; calculating the total carbon emission in the production process of the precast beam field by adopting an emission factor method; the total carbon emission is corrected; the data quality can be improved, and the calculation accuracy is guaranteed; accounting benchmarks are unified, and the problem of result difference is solved.

The invention discloses a method for preparing a hard carbon negative electrode material, the hard carbon negative electrode material and a sodium-ion battery, belongs to the technical field of energy materials, and solves the problems that the existing hard carbon negative electrode material is complex in microstructure and indefinite in sodium storage mechanism, and the traditional preparation method cannot effectively increase the internal closed pore volume, so that the high-platform capacity development is limited, and the sodium-ion battery is difficult to use. And the improvement of the energy density of the sodium-ion battery is restricted. Comprising the following steps: drying and crushing coconut shells; pre-carbonizing the treated coconut shell to obtain a carbonized material; uniformly mixing the carbonized material with an activating agent to obtain a mixed material; carrying out an activation reaction to obtain a biomass-based porous carbon mixed material; washing until the solution is neutral; carrying out activation reaction on the washed material to obtain the biomass-based porous carbon material with high specific surface area and high microporosity; and carrying out variable-temperature chemical vapor deposition reaction to obtain the hard carbon negative electrode material. The method is suitable for a large-scale preparation scene of the hard carbon negative electrode material with abundant closed pores.

The invention belongs to the technical field of energy materials, relates to a thermoelectric material, and particularly provides a high-performance n-type PbS-based medium-entropy thermoelectric material and a preparation method thereof, which are used for solving the problem of poor thermoelectric performance of a PbS-based material in the practical application process of the thermoelectric field. The medium-entropy thermoelectric material PbS (1-x) Sex-yTey is obtained by performing solid solution on a designed amount of Se element and Te element in a PbS-based material, x is more than or equal to 0.48 and less than or equal to 0.5, y is more than or equal to 0.15 and less than or equal to 0.25, and the thermal conductivity of the PbS-based material is effectively reduced; the preparation method comprises the following steps: preparing a medium-entropy thermoelectric material PbS (1-x) Sex-yTey, performing gap doping on the medium-entropy thermoelectric material PbS (1-x) Sex-yTey with a designed amount of Cu element to optimize the carrier concentration, and finally obtaining the high-performance n-type PbS-based medium-entropy thermoelectric material, the room-temperature ZT value and the average ZT value of the material are up to 0.53 and 1.08 respectively, and the material has excellent thermoelectric performance; meanwhile, the high-performance n-type PbS-based medium-entropy thermoelectric material has the obvious advantage of low cost, and wide application of the thermoelectric technology is promoted.

The invention discloses a high-porosity organic salt framework confinement nano-metal hydrogen storage material and a preparation method thereof, and belongs to the field of new energy materials. The material takes a carboxylic acid organic salt framework (POS-1) as a carrier, the specific surface area of the material is 1520 m < 2 > / g, the pore size distribution is 1.8-2.5 nm, nano Mg / Ni particles (the average particle size is 3.2 + / -0.5 nm) are confined in pores through a gradient loading and in-situ reduction technology, and an atomic layer deposition (ALD) is adopted to modify a Pd nano catalyst (the loading capacity is 0.48 wt%). The reversible hydrogen storage capacity of the material at room temperature reaches 5.8 wt%, the hydrogen desorption temperature is lower than 80 DEG C, and the capacity retention ratio is larger than or equal to 92% after 100 times of circulation. The preparation method comprises the steps of organic salt framework synthesis, metal precursor gradient loading, low-temperature reduction (250 DEG C), hydrogenation activation and the like, the process is simple and controllable, and the catalyst is suitable for scenes such as a vehicle-mounted hydrogen storage system.

The invention belongs to the technical field of energy materials, and provides a multi-functional-layer lithium manganate positive electrode material and a preparation method thereof and a lithium battery, the multi-functional-layer lithium manganate positive electrode material comprises a core body and a coating layer, the core body sequentially comprises a bulk-phase-doped lithium manganate matrix, an induction doping layer and a modification doping layer from inside to outside, the chemical general formula of the core body is Li < 1 + a > Mn < 2-b-c-d > M R < c > X < d > O < 4-e > Z < e >, bulk phase doping elements of the matrix are M and Z, a crystal face induction element is X, and a modification doping element is R; the coating layer is a compound comprising a coating element M '; a supported crystal face inducer is also adopted for further inhibiting the growth of the crystal face (111) and reducing the area of the crystal face (111) so as to form the positive electrode material of a polyhedral spinel crystal structure comprising at least 26 crystal faces, and the crystal face inducer comprises a phosphorus-containing compound, a boron-containing compound or at least + 5 valence metal salt; the Mn dissolution reaction is reduced, and the electrochemical performance of the lithium manganate is improved.

The invention discloses a high-entropy P2-O3 composite system sodium ion positive electrode material, a preparation method thereof and a sodium battery, and belongs to a new energy material technology. The method comprises the steps that a first reactant, metal oxide and solid powder of a sodium source are blended, sintered and cooled, the component of the first reactant is NiyFezMn (1-3y-z) (OH) (2-4y), and the particle size of the first reactant is 1-20 micrometers; the metal oxide is any two of TiO2, MgO, Co3O4, SnO2, ZrO2, La2O3 and CeO2, and the particle size D50 of the metal oxide is less than or equal to 5 microns; the sodium source is selected from any one of sodium carbonate, sodium bicarbonate, sodium nitrate and sodium acetate, and the particle size D50 is less than or equal to 10 microns; the particle size of the first reactant is larger than the particle size D50 of the metal oxide, and the particle size D50 of the sodium source is larger than the particle size D50 of the metal oxide.

The invention provides a surface treatment agent, a surface treatment method of a copper foil and a copper foil negative electrode current collector, and belongs to the technical field of energy materials. The copper salt is used as a copper source, the N-alkyl pyridine halogen salt ionic liquid is used as a halogen source, the copper salt and the N-alkyl pyridine halogen salt ionic liquid react in the solution to form cuprous halide particles on the surface of the copper foil in situ, the specific surface area and the roughness of the surface of the copper foil negative electrode current collector are increased, the copper foil negative electrode current collector is firmly combined with an active substance, and therefore the specific capacity and the rate of the lithium ion battery are improved; cu < + > in the cuprous halide particles formed on the surface of the copper foil also participates in electrochemical reaction, so that the specific capacity of the lithium ion battery is further improved. The result of the embodiment shows that the capacity of the lithium ion battery prepared from the copper foil negative current collector obtained by carrying out surface treatment on the copper foil by the surface treating agent provided by the invention can reach 825mAh g <-1 >; 100 times of charge-discharge cycles are carried out under the large current density of 1Ag <-1 >, and the retention rate can reach 95%.

The invention relates to the technical field of semiconductor energy material detection, and discloses a table type X-ray spectrometer multifunctional combined integrated in-situ experiment device, which comprises an X-ray source, a light source, an X-ray detector, an X-ray detector, an X-ray detector, an X-ray detector, an X-ray detector and an X-ray detector, the sample table is used for adjusting the position of the sample in the light path; the flight pipeline is used for transmitting X-rays and signals; the detector is used for collecting electronic signals. By adopting the unique design of the X-ray monochromator and the focusing mirror, the measurement and analysis of an X-ray absorption fine structure and a crystal structure can be realized in a conventional laboratory environment without using a synchrotron radiation light source, and X-ray diffraction, scattering and absorption spectrograms comparable to a synchrotron radiation level are obtained with extremely high sensitivity and light source quality; qualitative and quantitative analysis, crystalline state and valence state analysis and long-range structure and short-range coordination structure analysis of elements are achieved, and grazing incidence X-ray diffraction, powder diffraction and XAS research can be conducted in real time.

The invention relates to the technical field of new energy materials, in particular to a thermoelectric composite material and a preparation method and application thereof.The thermoelectric composite material comprises 2D TMDs, a P-type semiconductor polymer and a conductive polymer, the P-type semiconductor polymer and the conductive polymer are cross-linked to form a composite conductive polymer, and the 2D TMDs are dispersed in the composite conductive polymer. The composite conductive polymer has the effects of forming a thermoelectric loop, regulating and modifying the interface of the 2D TMDs and protecting the 2D TMDs dispersed in the composite conductive polymer, and the 2D TMDs and the P-type semiconductor polymer convert heat energy into electric energy under the Seebeck effect. The thermoelectric building material additive comprises a thermoelectric composite material combined on an inorganic silica gel carrier. The thermoelectric cement-based material comprises cement and a thermoelectric building material additive. The thermoelectric cement-based material has good thermoelectric performance, stability and durability, and is suitable for scenes with obvious temperature difference or urgent energy recovery requirements.

The invention discloses a high-rate silicon-carbon composite negative electrode material and a preparation method thereof, and belongs to the technical field of new energy materials and electrochemistry. The preparation method comprises the following steps: performing oxidation layer reconstruction on photovoltaic silicon waste to obtain a two-dimensional Si / SiOx composite material, then mixing the two-dimensional Si / SiOx composite material with metal salt, and performing spray drying granulation and CVD sectional carbon deposition to realize in-situ growth and carbon coating of carbon nanotubes CNTs, thereby obtaining the high-rate silicon-carbon composite negative electrode material. According to the invention, the in-situ grown carbon nanotubes and the silicon-based material form a good conductive network and closer carbon shell coating, Si-C bonds are formed, a multi-dimensional conductive network is constructed, excellent electron / ion conductivity of the composite material is ensured, a reconstructed oxide layer inhibits volume expansion of silicon, pulverization and failure of the material are prevented, and the performance of the composite material is improved. In-situ growth CNTs are interspersed around silicon to buffer the interface stress of the silicon. The prepared composite material has excellent multiplying power and cycle performance, has kilogram-level production capacity, and shows a wide application prospect in the field of electrochemical materials.

The invention discloses a thermochemical energy storage composite material with a bionic ordered structure and a preparation method of the thermochemical energy storage composite material, and relates to the crossing field of new energy materials and thermochemical energy storage technologies. Through an optimization strategy of coordination of geometrical shape, internal channel and surface effect, efficient adsorption / desorption kinetics and solar energy direct drive heat storage are realized. The thermochemical energy storage composite material comprises a matrix with a bionic multi-scale mass transfer structure and hygroscopic inorganic salt uniformly loaded in the matrix, wherein the matrix is activated by KOH and then is loaded with the hygroscopic inorganic salt; the appearance of the base body imitates that of red blood cells, and the base body is in a single concave disc shape; and a vein-like layered directional vein network is arranged in the base body. The problems of moisture absorption and caking, slow mass transfer and low photothermal conversion efficiency of a traditional hydrated salt material are solved, and a new scheme is provided for efficient storage of renewable energy sources.

The invention provides a preparation method of battery-grade lithium salt, and relates to the technical field of new energy materials. Starting from battery-grade lithium sulfate, part of lithium sulfate is reduced under hydrogen to obtain battery-grade lithium sulfide; part of lithium sulfate reacts with sodium carbonate to obtain battery-grade lithium carbonate, the battery-grade lithium carbonate reacts with hydrochloric acid to obtain lithium chloride, lithium chloride is electrolyzed to obtain metal lithium, and the metal lithium reacts with sulfur, is reduced and is converted into battery-grade lithium sulfide; part of lithium sulfate reacts with sodium hydroxide to obtain battery-grade lithium hydroxide, and then the battery-grade lithium hydroxide reacts with hydrogenation tail gas to obtain battery-grade lithium sulfide. Further, the battery-grade lithium sulfide can be obtained from the lithium-containing ore through the steps of calcination, sulfuric acid leaching, purification and the like. Through conversion and adjustment among different lithium salts, the cost of the lithium sulfide can be adjusted according to different conditions, and low-cost and large-scale mass production of the lithium sulfide is realized.

The invention discloses a method for in-situ lossless repair of an attenuated lithium manganate positive electrode material, which specifically comprises the following steps: adding the attenuated lithium manganate material into a lithium hydroxide solution, supplementing lithium to an original value by a hydrothermal method, repairing the component and structure defects of attenuated LiMn2O4 by combining high-temperature roasting, and recycling and regenerating lithium manganate particles with severely attenuated capacity. The lithium manganate positive electrode material is directly recovered by the lossless method, and the chemical components and crystallinity of the invalid positive electrode material in various health states are reconstructed, so that the invalid positive electrode material can be repeatedly used in the lithium ion battery. Finally, the treated recycled powder material is coated by a metal organic framework (MOFs) self-assembly method, so that the electrochemical performance of the treated powder material is further improved. The method is simple, environmentally friendly and low in energy consumption, has obvious advantages compared with a traditional hydrometallurgy battery recovery method, and lays an important foundation for sustainable manufacturing of energy materials.

The invention provides a silicate nanotube photo-thermal composite catalyst with CeO2-ZrO2 compositely coated with Ni as well as a preparation method and application of the silicate nanotube photo-thermal composite catalyst, and belongs to the technical field of energy materials. The catalyst takes a layered silicate nanotube as a carrier, is loaded with an active component Ni, and is coated with a CeO2-ZrO2 composite shell layer. The preparation method comprises the steps that firstly, a Ni-PSNTs precursor is synthesized through microwave hydrothermal synthesis, then Ce-Zr hydroxide is deposited in an ethanol solvent, ZrO2 / CeO2 layers are stacked alternately through an atomic layer deposition method, H2 / N2 pulse reduction is conducted after calcination, and the target catalyst is obtained. The methane conversion efficiency and stability are obviously improved. The problems that a traditional catalyst is low in activity, poor in carbon deposition resistance and low in photo-thermal efficiency are solved, and the catalyst is suitable for the fields of efficient conversion of fossil energy and the like.

The invention discloses a titanium-based high-entropy amorphous / tungsten multilayer film with radiation resistance and low hydrogen retention potential and a preparation method and application thereof, and belongs to the technical field of nuclear energy materials. The titanium-based high-entropy amorphous / tungsten multilayer film sequentially comprises a first TiVZrNbTaMoB alloy layer, a W layer and a second TiVZrNbTaMoB alloy layer from bottom to top, and the atomic percent of TiVZrNbTaMoB alloy in the first TiVZrNbTaMoB alloy layer and the atomic percent of TiVZrNbTaMoB alloy in the second TiVZrNbTaMoB alloy layer are as follows: 45%-50% of Ti, 20%-30% of V, 8%-15% of Zr, 10%-20% of Nb, 0.5%-3% of Ta, 0.3%-1% of Mo and 0.1%-0.3% of B. The preparation process mainly adopts a magnetron sputtering method. The obtained multilayer film has the potential of radiation resistance and low hydrogen retention.

The invention belongs to the technical field of energy materials, and discloses a coating material as well as a preparation method and application thereof. The coating material comprises the following components in parts by weight: 50-55 parts of zirconium oxide, 15-18 parts of aluminum oxide, 5.5-9 parts of rare earth oxide, 10-12 parts of a fluorocarbon polymer and 3-4 parts of a silane coupling agent, the rare earth oxide comprises yttrium oxide and cerium oxide. A natural gas hydrogen-doped pipeline coating prepared from the coating material has low permeability, high adhesive force, high hardness and excellent stability, can effectively inhibit hydrogen atoms from gathering and diffusing in the material in high-temperature, high-pressure, hydrogen-doped and other complex environments, has excellent hydrogen embrittlement resistance and good chemical stability and mechanical property, and can be used for preparing the natural gas hydrogen-doped pipeline coating. The pipeline failure risk caused by hydrogen embrittlement can be remarkably reduced, the performance degradation phenomena such as aging and decomposition are not prone to occurring, and long-term stable operation of the pipeline can be guaranteed.

The invention discloses a three-dimensional porous hard carbon coated silicate positive electrode material and a preparation method thereof, belongs to the field of novel energy materials, and relates to a three-dimensional porous hard carbon coated silicate positive electrode material and a preparation method thereof. The preparation method comprises the following steps: taking carbon nanotubes and chitosan as a carbon skeleton, mixing in an acidic solution, adding ethyl orthosilicate into ethanol, adding corresponding metal ion salts, dissolving and mixing, carrying out two-stage calcination at a certain temperature to obtain a three-dimensional porous hard carbon coated silicate positive electrode material, pulping the obtained material, coating a foil material with the pulped material, and drying to obtain the three-dimensional porous hard carbon coated silicate positive electrode material. And finally assembling to obtain the battery. The prepared silicate positive electrode material has good conductivity and discharge stability.

The present invention belongs to the technical fields of electrochemistry and energy materials, and particularly relates to the preparation and application of a high-performance pitch-based porous carbon material. The preparation method sequentially includes the following steps: pulverization, heat treatment, pre-oxidation, air-flow pulverization, carbonization, activation, pickling and water washing, and drying. Compared with the prior art, the beneficial effects of the present invention at least include: without using relatively high-cost raw materials such as carbon nanotubes and graphene while ensuring a sufficient specific surface area and a sufficient pore volume value, the preparation method has prominent advantages of simplicity and economy.

The invention relates to the technical field of energy materials and fluid engineering, and provides a micro-nano particle morphology detection and slurrying performance prediction method, device and equipment, and the method comprises the steps: preprocessing a slurry fuel sample, collecting the micro-morphology image and particle size distribution data of particles in the slurry fuel sample, and forming an original data set; based on a regional convolutional neural network algorithm, carrying out segmentation and feature extraction on the micromorphological image in the original data set to identify particle morphological parameters in the micromorphological image; establishing a dynamic database containing particle morphology parameters and particle size distribution data; based on the data of the dynamic database, a grey correlation method is adopted to quantify the correlation degree between the particle morphology parameters and the corresponding pulping performance indexes, and linear fitting is carried out; and constructing a pulping performance prediction model to obtain a pulping performance prediction value. The method can be directly applied to quality control and process optimization in slurry fuel production, and assists in improving the production efficiency and the product quality consistency.

The invention discloses preparation and application of a flexible package carbon fluoride battery aqueous mixed binder positive electrode, and belongs to energy material technologies and related fields. The aqueous mixed binder is a mixture of one or two of a polyacrylonitrile multipolymer, polyoxyethylene and polyvinyl alcohol. According to the invention, the aqueous mixed binder is adopted to prepare the carbon fluoride positive electrode; the problems that a pole piece only using an acrylonitrile multipolymer binder is prone to brittle rupture and a pole piece only using polyoxyethylene and polyvinyl alcohol binder is poor in cohesiveness can be solved, the respective defects in the process of preparing the pole piece through the binder are avoided, and therefore the processing performance of the pole piece is effectively improved. The pole piece prepared by the aqueous mixed binder has abundant pores, the porosity range reaches 50-60%, enough space is left for a product in the carbon fluoride discharge process, and the problems of battery barren liquor and the like caused by discharge volume expansion of a positive pole piece are greatly relieved. In addition, the water-based binder can prevent the organic solvent from polluting the environment.

The invention relates to the technical field of energy materials, in particular to a sodium-rich positive electrode material of a high-energy-density sodium-ion battery as well as a preparation method and application of the sodium-rich positive electrode material. The sodium-rich positive electrode material is composed of a sodium ion layered oxide and a sodium-rich oxide, the molar ratio of the sodium ion layered oxide to the sodium-rich oxide is (0.1-10): 1, and the sodium-rich positive electrode material is prepared by a high-temperature solid phase method. According to the sodium-rich positive electrode material disclosed by the invention, additional electrons are released and high specific capacity is formed through a synergistic oxidation-reduction reaction of anion oxygen and metal cations, so that the energy density is remarkably improved. The sodium-rich positive electrode material is a two-phase material, the volume expansion stress is buffered by a heterogeneous interface in the circulation process, meanwhile, irreversible phase change caused by deep sodium removal is inhibited through two-phase cooperation, the lattice integrity is maintained, and therefore the circulation stability is improved.

The application discloses a kind of porous carbon silicon negative electrode materials and preparation method thereof, belong to new energy material technical field, including porous carbon framework, silicon layer and carbon layer;The porous carbon framework includes macroporous carbon framework and the small pore carbon framework nested in macroporous carbon framework inside;The silicon layer is located at the surface of macroporous carbon framework and in small pore carbon framework;The carbon layer is coated on the surface of macroporous carbon framework silicon layer and in the silicon layer located in small pore carbon framework.This application shows a kind of porous carbon silicon negative electrode material, and the lithium ion battery can be prepared using the negative electrode material, and the lithium ion battery prepared has high first efficiency, low expansion and long cycle and the like advantages.

The present invention relates to the technical field of electrochemical energy materials, and specifically discloses a molybdenum nitride / nickel cobalt nitride nanosheet heterostructure electrocatalytic material, its preparation method and application. The method comprises S1, preparing copper hydroxide nanowires loaded on copper foam; S2, preparing copper nanowires loaded on copper foam; S3, preparing copper nanowire-loaded molybdenum-doped nickel cobalt nanosheets; S4, placing the copper nanowire-loaded molybdenum-doped nickel cobalt nanosheets in a tube furnace, and nitriding them in an ammonia nitrogen atmosphere to obtain a molybdenum nitride / nickel cobalt nitride nanosheet heterostructure electrocatalytic material. The internal resistance of the material is reduced by electron transfer and heterostructure between molybdenum nitride and nickel cobalt nitride, and compared with precious metal platinum wire, the material has excellent high current density hydrogen evolution performance. The preparation method provided by the present invention has the advantages of simple synthesis process, short synthesis cycle and low production cost. In addition, no hydrothermal reaction is required during preparation, the material has high safety and reliable repeatability, and is very suitable for large-scale industrial production.

The present invention discloses a p-type CaMg2Sb2-based thermoelectric material and a preparation method thereof, belonging to the field of new energy materials. The chemical composition of the CaMg2Sb2-based thermoelectric material is: Ca 1‑x‑ y Yb x Li y Mg 2‑z Cd z Sb2, where 0 < x < 0.7, 0 < y < 0.03, 0 < z ≤ 0.5; the preparation method is to prepare by high-energy ball milling and spark plasma sintering; the p-type CaMg2Sb2-based thermoelectric material provided by the present invention significantly improves the carrier concentration and mobility of the material and reduces the lattice thermal conductivity of the material by co-doping with Yb, Li, and Cd. The highest ZT of the material is between 0.9 and 1.1; the present invention realizes the preparation of a p-type CaMg2Sb2-based thermoelectric material with high carrier concentration and high mobility, and its thermoelectric performance is significantly improved.

The invention belongs to the technical field of preparation of new energy materials and supercapacitors, and particularly relates to a Mo-Fe co-doped MnO2 / Ag-CNTs composite electrode and a preparation method and application thereof. The method comprises the following steps: firstly, preparing an activated carbon cloth substrate, a deposition solution A and a deposition solution B; then the deposition solution A and the deposition solution B are mixed to obtain a Mo-Fe-MnO2 deposition solution, and an Ag-CNTs deposition solution is prepared; and finally, electro-deposition is alternately carried out in the Mo-Fe-MnO2 deposition solution and the Ag-CNTs deposition solution, and the Ag-CNTs / Mo-Fe-MnO2 / Ag-CNTs composite material is obtained. The preparation process provided by the invention is simple and controllable, and the large-scale preparation of the high-performance composite electrode is easy. The electrode is unique in structure and excellent in performance, and a flexible solid-state PSCSC device assembled by the electrode has high energy storage density and efficient mechanical energy self-charging capacity and shows huge application potential in the field of self-powered wearable / implantable microelectronics.

The invention relates to the crossing field of intelligent manufacturing of new energy materials and the Internet of Things technology, discloses an intelligent drying method and system for a power battery diaphragm material based on Internet of Things monitoring, and aims to solve the problems of non-uniform quality, high energy consumption and low yield caused by the fact that an existing drying process is static in control and cannot sense the state of a material body in real time. Obtaining multi-dimensional state data such as residual solvent concentration, temperature field, porosity and tension deformation of the diaphragm material through a multi-mode in-situ sensing module; predicting future state evolution by using a digital twinborn model fusing Kalman filtering and a physical information neural network; an optimization problem including quality, energy consumption and stability targets is solved through a multi-region model prediction control module, and an optimal control instruction is generated; and finally, the distributed driving execution module dynamically adjusts the heating power, the hot air rate and the conveying speed of each temperature zone, and closed-loop self-adaptive drying is achieved.

The invention discloses an ABX3 type perovskite material stabilized by a liquid crystal material and a preparation method of the ABX3 type perovskite material, and belongs to the field of semiconductor photoelectric materials and energy materials. The preparation method comprises the following steps: (1) uniformly mixing lead iodide and dodecyl dimethyl benzyl ammonium bromide, and carrying out heat treatment reaction to obtain a liquid crystal material solid; (2) dissolving the obtained liquid crystal material solid in an organic solvent to obtain a precursor solution; and (3) coating the surface of the ABX3 type perovskite thin film with the obtained precursor solution to obtain the ABX3 type perovskite material stabilized by the liquid crystal material. The ABX3 type perovskite which is high in quality and ultrahigh in stability is prepared through the method, the stability and the photoelectric property of the perovskite material are improved in order of magnitude, and the ABX3 type perovskite can be widely applied to the photoelectric fields of batteries, light emitting, detectors and the like; the preparation method has the characteristics of simplicity, easiness in control, convenience in operation, lower cost and the like, and is convenient for large-scale production in factories.

According to the bag-pulling centrifugal machine for the energetic materials, the drum is rotationally installed in the barrel body, the through hole is formed in the drum, the feeding pipe is installed at the top of the barrel body, and particularly, the discharging opening of the feeding pipe faces the inner wall of the drum, so that the energetic materials are not prone to falling off in the input process of the energetic materials due to the structural design. Materials are directly sprayed out from the pipe opening of the feeding pipe to impact the inner side of the pull bag, after spin-drying, cleaning and re-spin-drying, the materials penetrate through the opening from the gap between the supports to be discharged out of the rotary drum, due to the fact that the diameter of the feeding pipe is not changed, energetic materials in the feeding pipe cannot be extruded in the feeding process, the explosion risk is reduced, and the production efficiency is improved. The problem that in the prior art, the explosion risk is too high when a bag-pulling centrifugal machine treats energetic materials is solved.

This invention relates to the field of oil and gas well development technology, and particularly to a high-energy gas fracturing ultra-high pressure simulation testing device and equipment. The high-energy gas fracturing ultra-high pressure simulation testing device includes a main body, a fracturing test module, and a detection and control module. The main body includes a wellbore, a buffer cylinder horizontally placed at the bottom of the wellbore, and a short connecting cylinder welded to the middle of the buffer cylinder, with the wellbore and the short connecting cylinder fixedly connected. A flange blind plate is installed at the top of the wellbore. The fracturing test module includes a rupture disc and a fracturing gun. The rupture disc is disposed between the wellbore and the short connecting cylinder. The fracturing gun is disposed inside the wellbore. The detection and control module includes an igniter, a pressure sensor, and a control center. The igniter is disposed inside the fracturing gun, which is filled with high-energy material. The high-energy gas fracturing ultra-high pressure simulation testing device provided by this invention effectively improves the reliability of test data, reduces the risk of experiments, and lowers the reconstruction cost of equipment.

The invention belongs to the technical field of energy materials, and discloses a preparation method of a zinc-based porous organic polymer coating and application of the zinc-based porous organic polymer coating to protection of a zinc negative electrode. Reaction raw materials of the zinc-based porous organic polymer provided by the invention are cheap soluble zinc salt and pyromellitic acid, and the zinc-based porous organic polymer is obtained through a one-step solvothermal reaction. Polyvinylidene fluoride (PVDF) is adopted as a binder, and Zn-POPs is loaded on the surface of the zinc negative electrode in the modes of spin coating, blade coating, spray coating and the like. According to the Zn-POPs protective coating provided by the invention, the concentration distribution of zinc ions on an interface can be dynamically regulated and controlled by an unsaturated coordinate bond, and a dendrite-free zinc negative electrode is realized. Meanwhile, the coating can isolate direct contact between the electrolyte and the negative electrode, so that corrosion of the zinc negative electrode and generation of byproducts are reduced; when the coating is applied to a symmetric battery and a total battery, the battery can show low polarization voltage and stable cycle performance, the advantages of the coating are further highlighted, and subsequent large-scale industrial production can be expected.