38 results about "Renewable energy storage" patented technology

Provided are lithium sulfur battery cells that use water as an electrolyte solvent. In various embodiments the water solvent enhances one or more of the following cell attributes: energy density, power density and cycle life. Significant cost reduction can also be realized by using an aqueous electrolyte in combination with a sulfur cathode. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.

Provided are lithium sulfur battery cells that use water as an electrolyte solvent. In various embodiments the water solvent enhances one or more of the following cell attributes: energy density, power density and cycle life. Significant cost reduction can also be realized by using an aqueous electrolyte in combination with a sulfur cathode. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.

Provided are lithium sulfur battery cells that use water as an electrolyte solvent. In various embodiments the water solvent enhances one or more of the following cell attributes: energy density, power density and cycle life. Significant cost reduction can also be realized by using an aqueous electrolyte in combination with a sulfur cathode. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.

An energy storage and regeneration system that converts irregular, non-constant, and variable input power to regular, constant, and controlled output power using hydraulics whereby the irregular input power is used to pump hydraulic fluid into an accumulator array where it is stored pressurized. Energy is released in a controlled fashion using a hydraulic motor operated by the pressurized hydraulic fluid from the accumulator array, in accordance with the specified power demand. One or more power units may be deployed depending on the amount of energy required at the output. Each power unit includes a hydraulic motor and associated floating accumulator whose internal pressure is controlled to maintain a substantially constant pressure differential across its associated motor. The system can be integrated into various energy system sources including renewable energy such as wind, PV or thermal solar, wave, tidal, etc.

A maximum power point tracking (MPPT) converter of a renewable energy storage system for tracking and extracting a maximum power from a renewable energy source to provide the maximum power to a DC link. The MPPT converter includes an MPPT controller changing a controlled variable for maximum power point extraction in proportion to a current slope of the renewable energy source, and an MPPT extractor extracting a maximum power from the renewable energy source and converting the extracted maximum power in response to a control of the MPPT controller. The controlled variable variation is set to a large value if the current slope is out of a predetermined current slope range, and the controlled variable variation is set to a small value if the current slope is within the predetermined current slope range.

A system for renewable energy storage, providing integral synthesis of heat source cryo-fuel and heat sink refrigerant for distributed electric generation and motor vehicle prime movers and refrigerant liquefiers. Fuel synthesis is by gasification and anaerobic digestion of organic feedstock with heat recovery to drive thermo-chemical reactor and air and fuel liquefiers.

The invention provides a single-tank closed circulation energy storage power generation system. The single-tank closed circulation energy storage power generation system comprises a fused salt tank, an anti-freezing solution tank, a compressor, first / second heat exchangers, a turbine, upper / lower fused salt distributors, a low-temperature fused salt pump, a high-temperature fused salt pump, a fused salt thermocline, upper / lower anti-freezing solution distributors, a high-temperature anti-freezing solution pump, an anti-freezing solution pump, an anti-freezing solution thermocline, an engine and multiple valves. By selectively switching on one or more of the fused salt tank, the anti-freezing solution tank, the compressor, the first / second heat exchangers, the turbine, the upper / lower fusedsalt distributors, the low-temperature fused salt pump, the high-temperature fused salt pump, the fused salt thermocline, the upper / lower anti-freezing solution distributors, the high-temperature anti-freezing solution pump, the anti-freezing solution pump, the anti-freezing solution thermocline, the multiple valves and the engine, heat energy and electric energy are mutually converted. Stable output of renewable energy electricity such as wind power or photovoltaic power generation can be achieved, the effect of balancing electricity supply and demand is achieved, large-scale energy storagecan be achieved, the advantage of energy storage peak regulating is exerted, and a response is made to the requirements of renewable energy storage.

Described herein is a system for consuming, generating, storing, and delivering renewable, redundant, energy and providing backup energy storage and transmission to and from electrical load and method of using the same. The invention relates to a renewable energy consumption, generation, storage, and delivery systems and methods of using the same. A preferred embodiment of the present invention is related to use of the system to provide renewable, redundant, remote backup energy storage and transmission to a mission critical facility such as a data center or colocation facility.

An energy storage and regeneration system that converts irregular, non-constant, and variable input power to regular, constant, and controlled output power using hydraulics whereby the irregular input power is used to pump hydraulic fluid into an accumulator array where it is stored pressurized. Energy is released in a controlled fashion using a hydraulic motor operated by the pressurized hydraulic fluid from the accumulator array, in accordance with the specified power demand. One or more power units may be deployed depending on the amount of energy required at the output. Each power unit includes a hydraulic motor and associated floating accumulator whose internal pressure is controlled to maintain a substantially constant pressure differential across its associated motor. The system can be integrated into various energy system sources including renewable energy such as wind, PV or thermal solar, wave, tidal, etc.

Described herein is a system for consuming, generating, storing, and delivering renewable, redundant, energy and providing backup energy storage and transmission to and from electrical load and method of using the same. The invention relates to a renewable energy consumption, generation, storage, and delivery systems and methods of using the same. A preferred embodiment of the present invention is related to use of the system to provide renewable, redundant, remote backup energy storage and transmission to a mission critical facility such as a data center or colocation facility.

The invention discloses a high-performance oxygen-evolution CoSn2 / Ni3Sn4@NC / C composite catalyst and a preparation method and application thereof. The composite catalyst is prepared in the step that cobalt-nickel selenide nano-particles and nitrogen-doped carbon are supported on a carbon material together. The preparation method comprises the steps that after a nitrogen-containing small organic molecule compound, cobalt salt and nickel salt are subjected to liquid mixing, a solvent is evaporated, drying is conducted, the mixture of the nitrogen-containing small organic molecule compound, the cobalt salt and the nickel salt is subjected to first calcination in a protective atmosphere, a calcined product and a carbon material are uniformly stirred in a dimethylformamide-water mixed solutionand then subjected to a solvothermal reaction, and a product obtained after the solvothermal reaction is subjected to second calcination in a protective atmosphere to obtain the high-performance oxygen-evolution CoSn2 / Ni3Sn4@NC / C composite catalyst. The preparation technology is simple, low in cost and beneficial for industrial production; when used in a storage and conversion system of renewableenergy sources, such as water splitting or metal-air secondary batteries, the composite catalyst prepared by using the method has the advantages of being high in activity and high in stability; compared with a commercial RuO2 catalyst, the high-performance oxygen-evolution CoSn2 / Ni3Sn4@NC / C composite catalyst is higher in combination property and shows a good application prospect.

A hybrid renewable energy and energy storage system power supply system and a control method thereof integrate an electrochemical energy storage device with a mechanical energy storage device, and then match a solar photovoltaic and wind power generation system, and are grid-connected with a mains supply. In the control concept, an AC-DC is supplied preferentially to an AC-DC load, to reduce the conversion loss. The power supply system allows residence, base stations or computer rooms to be electricity self-sufficient, can conduct electric power trading with electric power companies when being grid connected with the mains supply, can avoid electric transient interruption during power outage and can also ensure a certain degree of power supply.

The invention belongs to the technical field of solid oxide electrolytic tanks, and particularly relates to a novel renewable energy storage reactor and application thereof. The renewable energy source reactor is suitable for a solid oxide battery with a cathode support type or anode support type structure. The solid oxide battery can utilize biomass-based small molecules to assist in electrolyzing water, so that efficient storage of renewable energy sources is realized. According to the renewable energy storage reactor developed by the invention, the supporting anode has a micro-channel structure, so that an effective way is provided for rapid diffusion of gas; and the micro-channel is filled with a catalyst and is used as an efficient biomass catalytic reforming reactor, so that the carbon deposition resistance and the electrolysis stability of the battery are improved. Compared with a conventional catalytic biomass water reforming hydrogen production process, the reactor has the advantages that electrolysis can be driven by renewable electric energy, synchronous and efficient storage of the biomass and the renewable electric energy is realized, pure hydrogen is obtained in the cathode chamber, and a hydrogen separation process is omitted.