683 results about "Solar energy storage" patented technology

A method and Apparatus for solar energy storage system uses gas for thermal transport for central tower solar thermal electric power plant to provide high quality, low cost, and continuously electric power generation. The storage contains a number of storage modules that each module can store energy for a given period of time. The thermal energy from central tower charges the modules one by one during the sunny time, while the thermal electric power plant discharge the modules one by one as long as it works. A control and a connection valve system control and connect the charge and discharge modules with the central tower and the power plant according to pre-arranged sequences. Fans at the cool side of the storage system push the circulation gas into the central tower or the thermal storage modules. In the discharge system, the hot gas from storage system is send to the heat exchange system, and to generate steam and to super heat steam for the power plant. In the charge system, the cold gas is pushed into the central receiver thermal exchange unit and to be heated, and the hot gas is then circulated back to storage system to charge up the storage system.

A solar energy storage and utilization device comprises a metal inner container, a collecting lens, an energy storage tank and a water storage tank. A transparent vacuum tube is arranged outside the metal inner container; the bottom of the water storage tank and the bottom of the metal inner container are communicated through a water pipe I, the upper portion in the metal inner container and the bottom of the water storage tank are connected through a steam pipe I, and an exhaust pipe and a water supplementing pipe are arranged on the energy storage tank. According to the solar energy storage and utilization device, the transparent vacuum tube layer is arranged outside the metal inner container, received solar energy is stopped from being lost and thus the utilization rate of solar energy is substantially increased; meanwhile, the water storage tank and the energy storage tank are arranged so that solar energy received in good weather is stored in the energy storage tank in the form of high temperature and high pressure water and utilized in bad weather, the situation that an existing solar energy utilization device depends a lot on weather conditions is eliminated, and the application range of the solar energy utilization device is widened.

A generating facility is provided for generating electricity from both solar and non-solar energy sources. The solar generating portion of the facility includes capability to directly generate electricity from solar insolation, or to store the solar energy in a tangible medium, including stored heat, or solar generating fuel. The generating facility is configured to generate electricity simultaneously from both solar and non-solar sources, as well a solely from immediate solar insolation and from solar energy stored in a tangible medium. Additionally, the solar generating capacity may be segregated; such that separate spectra of solar insolation are used to capture heat for steam turbine based electrical generation, capture light energy for photovoltaic based electrical generation, and to grow biomass to generate a solar fuel.

Provided is a solar cell panel dedusting system which is composed of a solar cell panel dedusting comb-shaped circuit, a solar energy storage battery and a control system. The comb-shaped circuit is composed of a substrate, a circuit layer and a superficial layer. The substrate is formed by a glass material. The interface layer is composed of pins of positive and negative electrodes, an array parallel main electrode and parallel period alternatively distributed comb-shaped sub-electrodes. The surface of the circuit layer is covered with a transparent insulating protection film. The control system comprises an inverter, a relay, a transformer and a microcontroller. The microcontroller monitors the solar cell panel output voltage signal in real time. When the surface of the solar cell panelis covered with dust and the light transmittance is reduced, leading to the output voltage is lower than a preset critical value, a one-chip microcomputer emits an instruction to close the relay. Then the solar cell panel dedusting comb-shaped circuit is conducted. The charge particles jump up and fly to the edge under the effect of a traveling wave electric field force and the effect of dedusting is achieved. When the output voltage signal is higher than the preset critical value, the one-chip microcomputer emits an instruction to open the relay so that the dedusting loop is cut off.

The invention relates to redox-switchable material comprising a redox-active moiety adsorbed, bonded or both, to a semiconductor material. Among the preferred redox-active moieties disclosed herein are ferrocenes, acridines, and quinones though any such moiety may be employed. The redox-switchable material of this invention may be used to selectively remove one or more selected solutes from an aqueous solution wherein adsorption / complexation of the solute is influenced by the oxidation state of the redox-active moiety. In an alternative embodiment, inclusion moieties that are covalently bound to the redox-active moiety are employed to achieve selective complexation of the desired solute. Other possible applications of the disclosed materials are photoerasable writing media, electrochromic or photochromic materials, catalysis, and solar energy storage.

The invention relates to high heat conducting compound phase change energy storage material and the preparing method. The material is compounded by inorganic metal multi-hole consecutive material, phase change energy storage material which is solid-liquid phase change one, and hole sealing material. The preparing method includes the following steps: using inorganic metal multi-hole consecutive material as carrier, solid-liquid phase change energy storage material as functional material; dipping the cleaned carrier into liquid state functional material to make it absorb fully; cooling curing and sealing hole. The material has the features of high heat conducting ratio, easy forming, stable phase change temperature, high chemical stability. The preparing method is economic, convenient, practical, and easy generalization application. The invention can be used in high performance cooling plate making, solar energy storage, waste heat utilizing etc.

The invention discloses a solar energy storage, ventilation and heating system, which comprises a heat storage wall composed of a heat-insulation layer, a heat storage layer and an aluminum plate painted with black paint, a heat storage ventilation channel or a combination thereof, which are sequentially arranged on the outer side of the external wall of a building; a transparent cover plate arranged on the outer side of the heat storage wall or the heat storage ventilation channel; an air sandwich between the transparent cover plate and the heat storage wall; and an upper vent and a lower vent having valves and arranged on the transparent cover plate and the heat storage wall. The solar energy storage, ventilation and heating system can achieve intermittent ventilation and heating without consuming non-renewable energy by using the special heat absorption and release functions of a phase-change heat storage material and by controlling the valves of the vents. The system has the advantages of energy conservation, environmental protection, simple control and handsome structure, and can be widely used for common residential buildings and public buildings.

The invention relates to a preparation process of a long-lived negative pole piece and a capacitor battery using the negative pole piece. The preparation process of the long-lived negative pole piece comprises the following steps: mixing materials: mixing fast-storage lithium carbon and a binder, and adding a solvent; squeezing, squeezing the mixture by a roll squeezer to obtain a platy pole piece with a certain thickness; coating: mixing a conductive agent into a sizing agent, and coating the sizing agent on a negative current collector body; attaching the piece, squeezing and attaching the platy pole piece on negative current collector body coated with the sizing agent; and drying, grinding, cropping, and vacuum drying to prepare the negative pole piece. The invention adopts the process that the platy pole piece is firstly squeezed and then is attached on the negative current collector body, so that the negative pole piece has higher compaction density and longer cycle life. The organic hybrid super-capacitor battery prepared by the invention has the characteristics of high energy density (which can reach 45-80Wh / Kg) and high power density (which is higher than 4500W / Kg), can bewidely applicable to the fields such as electric vehicles, power tools, solar energy storage, wind energy storage, portable appliances and the like.

The invention discloses a flame retardant form-stable phase-change material and a preparation method thereof. The method is characterized in that 50-60 percent (accounting for the mass percentage of the whole system) of paraffin, 15-20 percent of intumescent flame retardant, and 1-10 percent of metal powder are mixed evenly and then added into 15-20 percent (accounting for the mass percentage of the whole system) of molten high-density polyethylene; after melting and blending, the obtained mixture is melted and extruded by an extruder, and carries out granulation and molding, so as to obtain the flame retardant form-stable phase-change material in a space mesh structure which is formed by the intumescent flame retardant, the paraffin and the metal powder that dispersed in the high-density polyethylene evenly. As the invention adopts synergistic flame retardance of the intumescent flame retardant and the metal powder, the addition of the intumescent flame retardant is greatly reduced, the flame retardance and the thermal conductivity of the form-stable phase-change material is improved, and the popularization and application of the phase-change material in the industries of building energy-saving materials, solar energy storage materials and heat storage tempering textile materials can be greatly expanded.

The invention discloses a lead-carbon battery negative plate containing lead and graphene composite materials. A collector plate grid is made of lead, copper, titanium, tantalum, tungsten, aluminum, carbon foam or hard plastics, lead is plated on the surface of a non-lead collector plate grid, and lead plaster solid materials comprise, by weight, 0-90% of lead powder, 1-90% of the lead and graphene composite materials, 0.5-5% of hydrogen-evolution inhibitors and other additives. The lead-carbon battery negative plate containing the lead and graphene composite materials has the advantages that uniform mixing of the lead powder and graphene carbon materials can be achieved, instant large current is effectively buffered, sulfation on the surface of a negative electrode is inhibited, negative electrode charging receiving capability is greatly improved, HRPSoC (high-rate partial state of charge) cycling performance of a battery is remarkably improved, and the lead-carbon battery negative plate is simple in manufacture process and simplified in internal structure and has wide application prospects in the fields of hybrid electric vehicles, solar energy storage, wind energy storage and the like.

Provided is a mobile lighting device that can derive power from a renewable energy source, such as solar power. The device can comprise a mobile base unit that can house one or more components of the device. The device further can comprise a solar power module associated with the mobile base unit that converts solar energy into electrical current. The device also can comprise a lighting module associated with the mobile base unit that is at least partially powered either directly or indirectly using the electrical current from the solar power module. The device further can comprise a solar power storage module, such as comprising one or more batteries, for storing energy and discharging as electrical current for powering the lighting module, which can be positioned atop a mast that can be extendable, pivotable, and / or rotatable. The invention also provides methods and systems for illuminating areas.

A method and apparatus for storing, transporting, and releasing high grade, thermodynamically useful energy for a wide variety of uses. Solar energy is collected and reflected onto a heat storage container using a three-mirror reflecting system. This invention involves a method of heating the heat storage container using a primary, secondary, and tertiary system, which has a core that is partially comprised of an aluminum alloy and a metallic shell with a higher melting point than the aluminum alloy contained within. Once heated, the storage containers can then be transported to different storage areas in order to heat secondary storage containers or can be used in processes such as cooking, powering heat engines, water heating, absorption refrigeration, or drying garbage, waste, or biomass.

The invention discloses a wind and solar hybrid energy storage and power generation integration system and process. The system comprises a wind power generation subsystem, a solar energy storage subsystem, a liquefied air subsystem and a power subsystem. The process comprises the following steps: solar energy is gathered by a thermal collector to obtain heat energy, the heat energy is stored in heat storge medium; wind energy is converted to electric energy, the wind power is used to liquefy air and stored in the liquefied air; and when electricity is required, the liquefied air is pressurized to recycle cold energy for the air liquefying process, then the air is heated by the high temperature heat storge medium which stores solar energy to obtain high temperature and high pressure air, and finally the air is sent to a multistage reheating turbine to expand and do work. The system of the invention recycles the cold energy of the liquefied air to reduce the wasted work for air liquefying; a pump is used to increase the pressure of the working medium, thus reducing the wasted work for compressing the working medium; the turbine utilizes recycled heat for exhaustm, thus effectively utilizing heat energy; solar energy is utilized to heat the working medium at the inlet of the turbine, thus increasing the expansion efficiency of the turbine; and wind energy and solar energy can be utilized for complementation, energy storage and power generation can be integrated and the system of the invention has wide application prospect.

The invention relates to a high-specific-energy / high-specific-power type super battery, consisting of a positive electrode, a negative electrode, a diaphragm between the positive electrode and the negative electrode, and organic electrolyte, wherein the positive electrode is formed by parallel connection of two types of electrode pieces, i.e. an electrode piece which adopts a lithium-ion-embedded compound in a lithium ion battery as an active material and an electrode piece of a porous carbon material in a double electric layer super capacitor, the negative electrode adopts a negative electrode carbon material of the lithium ion battery, and the electrolyte is of an organic solvent containing lithium ion salt electrolyte. The high-specific-energy / high-specific-power type super battery has high energy density and power density simultaneously, wherein the specific energy can be up to 50-110wh / kg, and the power density can be up to 450-8000w / kg; and the high-specific-energy / high-specific-power type super battery can be widely applied in the fields such as electric automobiles, electric tools, solar energy storage, wind energy storage, portable household appliances and the like.

Systems and methods are described that employ high-intensity lasers to set up a thin plasma sheet, also called a waveguide or “hot shell”, in the atmosphere as a function of beam intensity and geometry. A laser beam can be spread and directed with physical optics (e.g., lenses, mirrors, other optical elements, etc.) to generate a thin inverted cone-shaped hot shell waveguide in the atmosphere. The hot shell of the waveguide has a different index of refraction (n) from that of the surrounding air layers and as such serves to internally reflect portions of the entering solar rays entering an aperture in the hot shell, toward the tip of the cone and a solar energy storage component positioned there, thus providing a virtual solar energy concentration system. In another embodiment, the solar energy storage component shuts down or otherwise rejects incoming solar energy when fully charged, to mitigate damage to system components.

The invention relates to a capacitor battery of a high-specific-energy organic system, consisting of a positive electrode, a negative electrode, a diaphragm between the positive electrode and the negative electrode, and organic electrolyte, wherein the positive electrode adopts the mixture of a lithium-ion-embedded compound and a porous carbon material, the negative electrode is hard carbon, and the electrolyte adopts electrolyte of an organic solvent containing lithium ions. The super capacitor battery prepared by the invention has the characteristics of high energy density (up to 20-90Wh / Kg) and high power density (larger than 4500W / Kg), can be widely applied in the fields such as electric automobiles, electric tools, solar energy storage, wind energy storage, portable household appliances and the like.

The invention relates to redox-switchable material comprising a redox-active moiety adsorbed, bonded or both, to a semiconductor material. Among the preferred redox-active moieties disclosed herein are ferrocenes, acridines, and quinones though any such moiety may be employed. The redox-switchable material of this invention may be used to selectively remove one or more selected solutes from an aqueous solution wherein adsorption / complexation of the solute is influenced by the oxidation state of the redox-active moiety. In an alternative embodiment, inclusion moieties that are covalently bound to the redox-active moiety are employed to achieve selective complexation of the desired solute. Other possible applications of the disclosed materials are photoerasable writing media, electrochromic or photochromic materials, catalysis, and solar energy storage.

The invention discloses a heating system for performing seasonal solar energy storage with a ground-source heat pump. The heating system comprises a solar thermal collector (1), a thermal collection water tank (2), a ground temperature recording system (3), a plurality of underground buried pipe heat exchangers (4), a soil heat pump unit (5) and a heating user (6), wherein a signal input end of the ground temperature recording system (3) is connected with a signal output control line of a ground temperature measuring device buried underground; the underground buried pipe heat exchangers are buried underground and arranged in parallel connection; a pipeline water inlet of the heating user is communicated with a water supply outlet of the soil heat pump unit through a heating pipeline, and a pipeline water outlet of the heating user is communicated with a water supply and water return port of the soil heat pump unit through a water return pipeline. The heating system has the advantages of being simple in structure, reliable in control and economically feasible. Meanwhile, a large amount of solar energy heat is stored in the thermal storage process, and thus the soil temperature is raised and the system efficiency of the soil source heat pump is improved. The heating system for performing seasonal solar energy storage with the ground-source heat pump is economical and safe.

The invention relates to a tri-branched azobenzene / graphene composite energy storage material and a preparation method thereof. According to the invention, tri-branched azobenzene is grafted on single-layer graphene. The method comprises a nucleophilic substitution reaction and a diazonium salt method. First, disperse orange and p-aminoazophenyl-4-sulfonic acid react with trimethyl-1,3,5-benzenetricarboxylic acid, such that tri-branched azobenzene is synthesized; and the tri-branched azobenzene is compounded with pretreated reduced graphene oxide. Compared to azobenzene small molecules, the obtained tri-branched azobenzene / graphene composite material is greatly improved in energy value and half-life period, and facilitates solar energy heat storage. Through DSC detection, the energy density of the prepared tri-branched azobenzene / graphene composite material is 150-250Wh / kg. The material has an important application prospect in solar energy storage in the future.

The invention relates to a solar energy storage system comprising a solar panel, a switching unit, a storage battery pack, a detecting unit and a controller. The solar panel is used for transforming the solar energy into the electric energy; the switching unit is used for switching the charging mode of storage batteries in the storage battery pack; the storage battery pack is used for storing the energy; the detecting unit is used for detecting the charging voltage of the solar panel and the open-circuit voltage of the storage battery pack; and the controller is used for controlling the switching unit to be switched into the corresponding charging connecting circuit to charge the storage battery pack with the corresponding charging mode according to the detection result of the detecting unit. The requirement of the storage battery pack for the charging voltage can be reduced when the intensity of the sunlight is not high enough, thus the storage battery pack can still be charged, and the utilization rate of the solar energy can be improved effectively. The invention also relates to a solar energy storage method.

The invention provides an organic / inorganic hybrid phase-change energy-storage material with enhanced thermal conductivity and a preparation method thereof, belonging to the energy storage technical field. The preparation method comprises the following steps: taking an inorganic compound with enhanced thermal conductivity connected by chemical bonds as a supporting material, and taking an organicphase-change energy-storage material as a working substance; hydrolyzing and condensing with an inorganic compound-sol precursor; and compounding and hybridizing with the organic phase-change material to obtain the organic / inorganic hybrid phase-change energy-storage material. The organic / inorganic hybrid phase-change energy-storage material has the advantages of good shaping property, high energy storage density and wide application prospect, thus being applicable to the fields such as energy-saving building materials, solar energy storage and utilization, industrial waste heat recovery and the like.

The invention provides an intelligent optimal scheduling method for wind and solar energy storage grid-connected power generation. The intelligent optimal scheduling method comprises the steps that (1) historical wind electricity data and solar electricity data are collected, and wind electricity and solar electricity output prediction error distribution before a day and in a day at different time scales is obtained; (2), wind electricity and solar electricity predicted output values are obtained according to meteorological data (illumination and temperatures) with an existing wind electricity output predicting system and a solar electricity output predicting system; (3), a wind electricity output scene value and a solar electricity output scene value are determined through the step (1) and the step (2); (4), an intelligent wind and solar energy storage gird-connected power generation scheduling model is established, wherein the intelligent wind and solar energy storage gird-connected power generation scheduling model comprises a scheduling optimized objective function model and a scheduling constraint condition model, and the scheduling optimized objective function model comprises a day-ahead scheduling model, a intraday scheduling model and a real-time scheduling model; (5), a first wind and solar energy storage power generation day-ahead combined scheduling value is obtained through optimization; (6), a wind and solar energy storage power generation intraday combined scheduling value, a wind energy storage power generation intraday scheduling value and a solar energy storage power generation intraday scheduling value are obtained; (7) a real-time wind and solar energy storage scheduling value is obtained.

The invention discloses a solar thermochemistry energy storage heat absorber and a heat absorbing method of the heat absorber. An energy storage heat absorber body composed of a heat absorbing layer and a reaction layer is placed in a cavity, and an opening of the energy storage heat absorber body is sealed through a quartz glass window and is wrapped with a heat insulation layer. The heat absorbing method comprises the following steps that focused solar radiation is projected to the surface of the heat absorbing layer through the quartz glass window; after the focused solar radiation is absorbed by reaction gas in the heat absorbing layer and the temperature of the reaction gas rises, the reaction gas enters the reaction layer to participate in reactions under the action of a catalyst to store solar energy in reaction products. The reaction products can serve as fuel to be used for power generation of a gas turbine and can be directly used as gas fuel. Reaction gas can be evenly heated by the heat absorbing layer, and the reaction layer can be protected against local overheating through the heat absorbing layer. Because the solar energy is stored in a thermochemistry process, the reaction products can be permanently stored under room temperatures, and the solar energy can be efficiently and stably absorbed and stored. The solar thermochemistry energy storage heat absorber is compact and simple in structure, reaction fluid and the products are convenient to transport, and large-scale high-temperature solar heat utilization requirements can be met.

The invention discloses a small multifunctional solar battery air conditioner, comprising outdoor unit, indoor unit, solar heat collector and energy storage tank, where outdoor heat exchanger is connected with the solar heat collector and adopts air cooling. And it integrates refrigeration (cold storage) and heating (heat storage) as well as living hot water supply, having characters of compact structure and unit miniaturization; its cold storage density is higher than that of water cold storage system; on the condition that outdoor temperature is below -15deg.C, it can still normally supply heat indoors, and the heat temperature is uniform. And its performance coefficient can be up to above 3.0, reducing energy source consumption, fully using renewable energy sources and balancing power loads. In addition, it has characters of environmental protection, saving energy, safety, etc.

The invention discloses a polymer solid-solid phase transition energy storage material. The material consists of the following materials by mass percentage: 60 to 95 percent of phase transition main material and 5 to 40 percent of frame material, wherein the phase transition main material is made of high density polyethylene or polyethyleneglycol; and the frame material is made of active carbon fibers. After the phase transition main material and the frame material are dryly mixed, the mixture is placed in an extruder for granulating to obtain granules, and the temperature in a granulating process is controlled at 100 to 190 DEG C; and the produced granules are placed in the extruder to be granulated for 4 to 6 times to produce the polymer solid-solid phase transition energy storage material. The phase transition energy storage material has high enthalpy value of phase transition, good energy storage performance, good thermal stability, high chemical stability and stable shape in the phase transition process, and has application prospect in multiple technical fields, such as solar energy storage, energy utilization and conversion, waste cold and waste heat utilization and the like.

The high-energy static vanadium cell has its electrolyte set directly inside the electrode assembly and thus has no need outer electrolyte tank and electrolyte pump and is static. Its electrolyte contains high concentration vanadium ion stabilizer and activator. It has simple structure and may be rectangular or cylindrical. It has high specific energy, simple structure, light weight, fast charging, long service life and other advantages. It may be used in various vehicles, ships, electric tools, solar energy storage, etc.

The invention relates to a solar energy and geothermal energy complementation type wind energy heat pump system. The system comprises a wind power generation device, a solar thermal collector, a high-temperature water source heat pump unit, a thermal / cold storage water tank, a thermal storage buried tube stack and a cold storage buried tube stack, wherein the wind power generation device provides electricity for the high-temperature water source heat pump unit, and the heat pump unit is connected with the thermal storage buried tube stack, the cold storage buried tube stack, the thermal / cold storage water tank and the solar thermal collector through connecting pipes, switch valves and water pumps respectively to realize the heat supply mode that a ground source heat pump is connected with the solar thermal collector in parallel, the heat supply mode that the ground source heat pump is connected with the solar thermal collector in series, the mode that the ground source heat pump supplies heat independently and the cold storage buried tube stack conducts cold storage, and the mode that the ground source heat pump conducts refrigeration independently and the thermal storage buried tube stack conducts thermal storage respectively. The system solves the problem of wind curtailment during wind power generation, solar energy serves as the auxiliary heat source of the heat pump unit, the problem that heat absorption and heat extraction of soil are unbalanced is solved, cross-seasonal solar energy storage is achieved, and the energy efficiency ratio of the heat pump system is increased.

Disclosed is a method for preparing wax composite phase change energy storage material for shaping silica sol, belonging to the technical filed of the preparation of composite phase change energy storage material for shaping. The invention takes silica sol and wax as materials, and during the preparation process, firstly, wax is added into the silica sol, then necessary addition agent is added; after that, the mixture is heated and blended fast so as to develop into emulsion; the pH valve of the system is adjusted or that precipitation reagent is added so as to make the mixture of wax and silicic acid to separate out from the system; in this way, wax composite phase change energy storage material for shaping silica sol can be prepared. The invention provides an economic, simple, convenient and practical universal method for preparing wax composite phase change energy storage material for shaping silica sol. The method has no pollution to the environment and the wax composite phase change energy storage material prepared through the method is high in purity and good in energy storage performance. Therefore, the method is of application prospect in the fields of constant temperature material, solar energy storage, energy utilization and conversion, and the utilization of waste heat and waste cold energy.

The invention relates to an intelligently compound pole tower inclined angle monitoring system, the structure of the device is as follows: the side wall of a case body is articulated with a case door; the case body is internally fixed with a controller, a GPRS, a DTU (a data terminal unit), a communication module, a sensor and a solar energy storage battery, wherein the upper end of the case body is fixed with a case cover; the case cover is fixed with a solar panel and a GPRS antenna; the solar panel is connected with the solar energy storage battery; a controller module is connected with the sensor, the solar energy storage battery and the DTU; the DTU is connected with the solar energy storage battery and a GPRS antenna; the case body is fixed on the intelligently compound pole tower; the acquisition data of the sensor is analyzed and judged by the controller; and when the inclined angle reaches setting threshold, the inclined angle and the relevant data are sent into a monitoring center and mobile phones of related power transmission staff members in a short message mode by the GPRS, thus timely discovering and processing slow inclination and collapse of the intelligently compound pole tower and providing powerful support for guaranteeing safe operation of a power grid.