36results about How to "Improved power output characteristics" patented technology

This invention relates to a lithium-sulfur battery and a method of manufacturing the same, and more particularly, to a molten salt-based lithium-sulfur battery and a method of manufacturing the same, in which a metal foam including lithium or a lithium alloy, as an anode active material, and sulfur or metal sulfide, as a cathode active material, is used as a support and a current collector, and a solid-state electrolyte is used to thus improve energy density and power output characteristics.

The invention discloses a method for manufacturing a microwave power device by using a double level polysilicon device structure. The method of the invention adopts a deep groove isolation technique and inhomogeneous thermal design, realizes the acinaceous cellular structure, adopts outer base region composite plate to carry out photoetching, vertically etches a monox dielectric layer and outer base polycrystalline silicon to obtain the outer base region window of the ratio change of the length and the like, and forms a compound L-shaped side wall capable of adjusting the length of an emitting electrode by means of autocollimation in the outer base region window. In the invention, the emitting electrode polycrystalline silicon composite plate is adopted to carry out photoetching, the emitting electrode polycrystalline silicon and the dielectric layer are vertically etched by utilizing autocollimation, the selective side wall protection technology is combined, under the scale of the deep submicron, and the polycrystalline silicon refractory metallic silicide with low film resistivity is realized by means of autocollimation, thereby avoiding the short circuit connection of two typesof polycrystalline silicon leads, reducing the restriction of parasitic components of the interconnected leads on improving the characters of the microwave power device under the graph scale of submicron and deep submicron, thereby improving the overall performance of the microwave power device and the microwave performance thereof.

By means of the process of components adjustment, microwave smelting, heat treatment and ball milling of a magnesium-based hydrogen storing alloy, the crystalline structure of the alloy is made to change, and an obtained finished product has the characteristic that the sum of the component ratios of an AB2 structure and an A5B19 structure is 40% or above. In order to make the magnesium-based hydrogen storing alloy have larger discharging capacity and hydrogen storing capacity than existing products, the heat treatment process of two times of quenching and two times of tempering is adopted, anda good comprehensive performance effect is acquired. According to the ball milling process, large and small balls are adopted for perform ball milling on the smashed alloy twice in sequence, along with uniform micronization of the magnesium-based hydrogen storing alloy, the surface area is made increased, when the magnesium-based hydrogen storing alloy is applied to a nickel-hydrogen storage battery, the electric power output characteristic of the magnesium-based hydrogen storing alloy is obviously improved, and especially, the hydrogen absorbing / releasing capacity retention rate and the cycle service life of a product are further improved.

The invention relates to a method for preparing a micropore carbon electrode material of a super capacitor. The method mainly comprises the following steps: (1) soaking an activated zeolite molecular sieve in furfuryl alcohol in vacuum, filtering, and washing with toluene, airing at the room temperature, and placing for 24 hours at the temperature of 80 DEG C, and for 8 hours at the temperature of 150 DEG C under the protection of N2 to obtain a molecular sieve / poly-furfuralcohol compound; (2) under the protection of N2, carbonizing the molecular sieve / poly-furfuralcohol compound by heating; when the temperature rises to a set temperature, switching a N2 flow to precipitation gas immediately; performing vapor deposition for several hours to obtain a molecular sieve / micropore carbon compound; and (3) washing the molecular sieve / micropore carbon compound twice by using HF acid and concentrated hydrochloric acid respectively, then washing by using deionized water and drying to obtain micropore carbon electrode material. The micropore carbon material prepared by the invention has large specific surface area; a pore structure is an anti-structure of the molecular sieve; and good communication is formed among pore canals. The micropore carbon material has higher specific capacitance value and better power output characteristics.

The invention discloses an active coordination and control method for a new energy combined power generation system containing an energy storage system. The method comprises the steps of (1) acquiring real-time data from a supervisory control and data acquisition (SCADA) system and updating the information of an AGC model; (2) calculating the control goal of a combined power generation system in the currently control scenario according to the control scenario in which the combined power generation system currently participates the AGC process; (3) calculating the currently maximum admissible new energy generating margin of an energy storage system; (4) according to the ultra-short-term power predicted value of the new energy and the currently maximum admissible new energy generating margin of the energy storage system, decomposing the overall control goal of the combined power generation system that is obtained through the calculation process during the step (2), and respectively calculating the control goal of a new energy generating system and the control goal of the energy storage system; (5) verifying and checking instructions for each control object obtained through the calculation process during the step (4), and issuing final control instructions after ensuring the instructions are error-free. According to the technical scheme of the invention, the energy storage system is effectively utilized to quickly absorb and release the electric energy, so that the control object can be quickly and accurately tracked.

Disclosed is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material layer, and the negative electrode includes a negative electrode active material layer. The positive electrode active material layer includes a lithium-containing metal oxide containing nickel as a positive electrode active material. The area of ​​the positive electrode active material layer per unit battery capacity Ah is 190˜800 cm 2 . The porous heat-resistant layer is located between the positive electrode and the negative electrode, and the ratio of the amount of non-aqueous electrolyte to the area of ​​the porous heat-resistant layer is 70-150ml / m2.

A day-ahead optimization scheduling method for a wind-solar storage cogeneration system comprises the steps of: obtaining various optimization data, and determining an optimization space of a wind-solar storage cogeneration system; establishing an optimization model using the maximum active total power as a target according to a power grid model of an actual power grid; adding the penalty quantity of the change relationship of a total active power curve into an optimization target, so as to obtain an optimization scheduling model in which it is taken into account that the power generation curve is smooth; and linearizing a non-linear factor in the model, and solving same using a dual simplex method to obtain an active power generation curve of the wind-solar storage cogeneration system, reporting same to an upper-level scheduling centre, obtaining a charge and discharge plan of an energy storage device, and issuing same to a subsystem for execution. The method greatly improves the optimization configuration capability of electric power resources.

Provided is a lithium secondary battery which has excellent low-temperature power output characteristics by the inclusion of a given amount of a lithium metal oxide and / or a lithium metal sulfide in an anode mix for a lithium secondary battery containing a carbon-based anode active material and is thereby capable of being used as a power source for electric vehicles (EVs) and hybrid electric vehicles (HEVs) that must provide high-power output at low temperatures as well as at room temperature.