5results about How to "Have mechanical strength" patented technology

This invention discloses a surface-modified current collector, an all-solid-state battery, its preparation method, and an electrical device. The surface-modified current collector includes a negative electrode current collector substrate, a lithium storage layer, and a lithiophilic layer arranged sequentially along the thickness direction. The lithium storage layer has a plurality of micropores oriented perpendicularly to and / or inclined to the surface of the negative electrode current collector substrate. The lithium storage layer includes a conductive micropore template with a micropore structure having a plurality of micropores with the same orientation as the micropores and a vanadium nitride layer disposed on the surface of the conductive micropore template and the inner wall of its micropore structure. This lithium storage layer constitutes a three-dimensional conductive framework, which can guide lithium ions to transport longitudinally or tend to transport longitudinally and deposit uniformly, suppress lithium dendrite growth, and alleviate volume expansion stress during cycling. The lithiophilic layer provides low nucleation overpotential sites, further promoting uniform lithium deposition. Through the synergy of the above layers, uniform lithium deposition can be effectively achieved, and volume expansion stress during cycling can be dispersed and absorbed, significantly improving the cycle performance and safety of the battery.

This invention discloses a method for preparing an ultrathin ordered macrocyclic molecular membrane. The method involves synthesizing macrocyclic molecules with high polymerization activity and amphiphilic guest molecules. The inclusion complexes formed by the macrocyclic molecules and guest molecules are orderedly assembled using Langmuir-Blodgett (LB) technology. Photopolymerization is then employed to achieve ordered cross-linking of the macrocyclic molecules, resulting in an ultrathin ordered macrocyclic molecular membrane. The macrocyclic molecular membrane prepared by this invention is monomolecular in thickness and possesses good mechanical strength. With the assisted orientation of the amphiphilic guest molecules, the macrocyclic molecules achieve ordered assembly at the water-air interface. The membrane preparation process proposed in this invention is simple, cost-effective, versatile, and easily scalable, making it significant for the field of high-performance separation membranes.

The utility model relates to an acid-resistant high-strength plastic bag, which belongs to the technical field of plastic bags and comprises a plastic bag body, the plastic bag body comprises a base material layer, a barrier layer, a high-strength nylon fiber net and an encapsulation layer, the outer surface of the base material layer is coated with the barrier layer, and the encapsulation layer is arranged on the periphery of the barrier layer. And a high-strength nylon fiber net is woven between the barrier layer and the encapsulation layer and is of a net structure. The utility model has the beneficial effects that the modified polyamide 6 material is melted and extruded into the sheet-shaped base material, then the nano silicon dioxide particle dispersion liquid is sprayed on the surface of the sheet-shaped base material to form the uniformly distributed barrier layer, then the high-strength nylon fiber net prepared in advance is laid outside the barrier layer to ensure that the high-strength nylon fiber net is flatly attached, and finally, the high-strength nylon fiber net is coated on the surface of the sheet-shaped base material. The thermoplastic elastomer material is heated and melted and then covers the high-strength nylon fiber net, the finished plastic bag is obtained after cooling and curing, and compared with a traditional multi-layer composite structure, the production mode is more convenient.

The application discloses a preparation method and application of a peptide self-assembled photo-induced thermoelectric composite functional film, and belongs to the field of new biological materials. The method comprises the following steps: adding a peptide and tyrosinase into a reaction system to obtain a reaction solution, the peptide comprises at least one tyrosine residue, and simultaneously comprises at least one positive electric amino acid residue and at least one negative electric amino acid residue; the tyrosinase catalyzes the reaction of the tyrosine residue in the peptide to generate a melanin-like structure, so as to self-assemble to form a photo-induced thermoelectric composite functional film at a gas-liquid interface. In the assembling process, the catalytic oxidation of the tyrosinase is simultaneously completed to prepare the film, the film is only composed of the peptide, does not need a substrate, can independently exist and can be processed into a specific shape; the melanin-like structure in the film simultaneously has photo-thermal and photo-electric dual functions, is used for tumor photo-thermal treatment and photo-electric nerve stimulation, and overcomes the problems of limited form, single function and insufficient biocompatibility of the existing peptide materials.

The utility model discloses an assembled graphite product, including base, with the base of graphite block and the circular ring thin wall component of setting outside graphite block and with base intercalation, the circular ring thin wall component includes a plurality of arc blocks of intercalation, and two ends of arc block are equipped with first intercalation block, first intercalation groove. The graphite product provided by the new type has complex structure, and has certain mechanical strength, improves the application of graphite product.