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4results about How to "Avoid uncontrollability" patented technology

An improved markov chain-based electric vehicle charging and discharging probability prediction method

ActiveCN117465273Bavoid uncontrollabilityReduce fluctuations in electricity usageMarkov chainElectric consumption
This invention discloses a method for predicting the probability of electric vehicle charging and discharging based on an improved Markov chain. Taking charging and discharging piles as the research object, firstly, the states of the Markov chain are abstracted. The current total power consumption of the charging and discharging piles at the beginning of the cycle is obtained, and the state intervals are divided according to the adjustable range of the power consumption of the charging and discharging piles. Secondly, the decision-making behaviors of the charging and discharging piles are divided into four types: charging behavior, fast discharging behavior, slow discharging behavior, and stationary behavior. Then, the TPC method is used to establish a control strategy, determine the number of charging and discharging piles allocated for charging and discharging behaviors at a certain moment, and calculate the transition probability to establish a state transition matrix. This method is beneficial for leveraging the role of charging and discharging piles in the control of electric vehicle charging and discharging under the consideration of randomness, and for providing an intuitive and quantitative analysis of the charging and discharging amount of electric vehicles under control.
Owner:SOUTHEAST UNIV

Preparation method of silver-coated copper nanowire

PendingCN121847769AImproves antioxidant stabilityisolated contactTransportation and packagingMetal-working apparatusEndcappingAlkyl amine
The invention discloses a preparation method of a silver-coated copper nanowire, and belongs to the technical field of nano material preparation. According to the silver-coated copper nanowire, a copper nanowire serves as an inner core, the outer side of the inner core is coated with a compact and continuous silver shell layer, and the preparation method comprises the steps that firstly, under the protection of inert atmosphere, long-chain alkylamine serves as a reducing agent and an end-capping reagent, and the copper nanowire with the high length-diameter ratio is synthesized through a thermal reduction method; and then, a chemical reduction deposition method is adopted, ascorbic acid serves as a reducing agent, a silver salt solution is slowly dropwise added into the copper nanowire dispersion liquid, and in-situ reduction and deposition are conducted on the surface of the copper nanowire to form a uniform silver shell layer. The preparation method effectively solves the problems that the copper core is easy to oxidize and the silver shell layer is discontinuous, and the prepared silver-coated copper nanowire has the characteristics of low cost, high conductivity, high oxidation resistance and excellent dispersity, and is very suitable for preparing a high-performance and flexible transparent conductive film.
Owner:ANHUI UNIV

Triphenylamine gallium porphyrin complex and application thereof as hole transport material

PendingCN121974917AMatch energy levelExcellent intrinsic hole transport propertiesOrganic chemistryPhotovoltaic energy generationDopantPerovskite solar cell
The invention discloses a triphenylamine gallium porphyrin complex and application of the triphenylamine gallium porphyrin complex as a hole transport layer material. The structure of the complex is shown in the following formula, wherein R represents methoxy, methylthio or hydrogen. The complex has an energy level better matched with a perovskite layer and better intrinsic hole transport characteristics, and under the condition that no chemical doping is needed, a formal (n-i-p) perovskite solar cell prepared from the complex obtains 16.25% of photoelectric conversion efficiency and is comparable with an early-stage doped Spiro-OMeTAD system. The lithium salt and the organic dopant which are easy to absorb moisture and migrate are completely abandoned, so that the problem of device degradation caused by the lithium salt and the organic dopant is radically eliminated, and the long-term stability of the device under hot, wet and running conditions is synchronously and greatly improved; the preparation process is greatly simplified, the process window is obviously widened, the production repeatability and the yield are improved, and by omitting expensive dopants and simplifying production steps and quality control links, the material and process cost is directly reduced, and the industrial application potential is improved.
Owner:SHAANXI NORMAL UNIV