6 results about "Phosphorene" patented technology

This invention relates to the field of solid-state lithium battery technology, and particularly to a phosphorus-modified acrylic-based solid electrolyte membrane and its preparation method. The phosphorus-based solid electrolyte raw materials include: phosphorus, a polymer matrix, a lithium salt, an ionic liquid, and a thermal initiator; the mass ratios of phosphorus, lithium salt, ionic liquid, and thermal initiator are 0.1-0.5%, 30%, 20%, and 0.3-0.5% of the acrylic-based solid electrolyte, respectively; the polymer matrix includes fluorinated acrylate compounds; the lithium salt is lithium bis(trifluoromethanesulfonyl)imide; the ionic liquid is 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide; and the thermal initiator is an azo compound. This invention provides a phosphorus-modified acrylic-based solid electrolyte membrane and its preparation method. By introducing phosphorus, its structural and surface electronic properties promote lithium salt dissociation, construct a rapid ion transport channel, and improve the stability of the electrolyte / electrode interface, thereby enhancing the electrochemical and safety performance of the solid electrolyte.

The application belongs to the technical field of alloy materials, and particularly relates to a copper-nickel composite material for new energy batteries and a preparation method thereof. The copper-nickel composite material comprises a copper-nickel composite sheet and a composite coating coated on the surface of the copper-nickel composite sheet. The copper-nickel composite sheet comprises the following raw material components by weight: copper powder 78-84 parts, nickel powder 10-15 parts, tin powder 2-4 parts, aluminum powder 3-7 parts, and modified phosphorene 2-5 parts. The modified phosphorene is prepared by the following process: adding ground black phosphorus crystals into water, ultrasonic stripping under an inert gas atmosphere, then adding an aqueous chloroauric acid solution and stirring, adjusting the pH to 10-11, adding a hydrazine hydrate solution and stirring for 1-2 hours to obtain the modified phosphorene. The copper-nickel composite material for new energy batteries has stable structure, excellent mechanical properties, and excellent corrosion resistance.

The invention provides a black phosphorene tetramer metasurface refractive index sensor which comprises a plurality of tetramer metasurface units composed of dielectric substrates and tetramer structures, and the tetramer structures comprise rectangular black phosphorene patches. The rectangular black phosphorene patch adopts an in-plane asymmetric micro-perturbation structure with unequal sizes in the directions of the armchair shaft and the zigzag shaft, and the upper surface of the rectangular black phosphorene patch is provided with a medium cavity filled with a to-be-detected medium. The rectangular black phosphorene patch in the tetramer structure adopts an in-plane asymmetric micro-perturbation structure with low absorption loss as a dielectric material, so that radiation leakage of energy can be reduced, and meanwhile, the defect that the fano resonance line width is relatively wide due to metal plasma related intrinsic loss and additional damping of a mixed mode is eliminated; the two-dimensional sheet structure is easier to form strong near-field coupling and energy localization mainly based on surface current, radiation leakage of energy can be reduced, the in-plane asymmetric perturbation characteristic can improve the consistency of two orthogonal polarization resonance responses, and the detection precision is improved.

The invention belongs to the technical field of supercapacitors, and relates to a CoNi2S4-P-CNT composite electrode-based all-solid-state supercapacitor and a preparation method thereof, a cobalt source, a nickel source and thiourea are used as sulfur sources, a phosphorene-carbon nanotube composite dispersion liquid is combined, and the CoNi2S4-P-CNT composite electrode is prepared through a gradient hydrothermal-vulcanization-freeze drying-annealing process; the composite gel electrolyte is prepared by taking polyethylene glycol as a gel matrix, lithium bis (trifluoromethanesulfonimide) as an ion source and nano SiO2 as a reinforcing agent through an ultrasonic dispersion-microwave curing process; and the two components are assembled into the all-solid-state symmetric supercapacitor. According to the invention, a three-dimensional conductive network of the composite electrode and a gel electrolyte ion channel are constructed synergistically, the limitation of single component optimization is broken through, phosphorene bridged CoNi2S4 and carbon nanotubes form an efficient electron transport network, nano SiO2 constructs an ion channel in gel, and electron conduction and ion transport efficiency are improved synergistically with the phosphorene bridged CoNi2S4 and the carbon nanotubes.

The application relates to the technical field of energy storage, and provides a battery monomer, a preparation method of the battery monomer, a battery device, an energy storage device and a power utilization device. The preparation method of the battery monomer comprises the following steps: dispersing black phosphorus powder in a buffer solution, adding an organic nitrogen source and a metal salt into the buffer solution, drying to obtain a coated precursor, and the organic nitrogen source contains oxygen elements; heating the coated precursor to T1 DEG C at a heating rate of 1 DEG C / min to 3 DEG C / min for first heating treatment, and then heating to T2 DEG C at a heating rate of 2 DEG C / min to 8 DEG C / min for second heating treatment to obtain modified phosphorene; obtaining an electric core assembly, the electric core assembly comprises a negative electrode, a diaphragm and a positive electrode which are arranged in a stack mode, and the negative electrode comprises the modified phosphorene; and placing an electrolyte and the electric core assembly in a shell. The battery monomer prepared by using the preparation method has good energy density and cycle performance.

The invention provides a phosphorene material, a processing method, a device structure, a preparation method and manufacturing equipment, and the processing method comprises the steps: placing the phosphorene material in a plasma processing cavity, introducing nitrogen to generate nitrogen plasma, and processing the phosphorene material through the nitrogen plasma. The prepared surface nitrogen modified two-dimensional phosphorene nanosheet has high air stability, and the stability in air can reach 60 days or above. The surface-nitrogen-modified two-dimensional phosphorene nanosheet prepared by the method has an atomic-scale flat surface, and the atomic-scale flat surface can be kept in the air for more than 60 days.