33results about How to "Act as a buffer layer" patented technology

The invention discloses a core-shell-structured silicon carbon negative electrode material and a preparation method therefor. The silicon carbon negative electrode material comprise a core, a buffer layer and a shell from inside to outside in sequence; the core material consists of SiO, Si, SiO<2> and silicate; the buffer layer material comprises carbon dots or graphene quantum dots; and the shellmaterial is a hard carbon material. The core material disclosed in the invention comprises a modified SiO material; through a high-temperature reaction between SiO and NaOH, nanometer silicon and sodium silicate are generated, so that the shortcoming of low initial coulombic efficiency caused by a reaction between SiO and Li in the initial charging process can be solved; meanwhile, by taking thegenerated sodium silicate as a buffer medium, volume change of the material in the lithium de-intercalation process can be suppressed effectively, and cycle performance of the electrode can be improved; and by taking conductive carbon as a coating layer and by introducing the carbon dots or graphene quantum dots, the material conductivity is improved and a buffer effect can be played, thereby realizing stable cycle performance and high reversible capacity of the battery.

The invention discloses an encapsulating structure and method for improving Frit encapsulating mechanical strength. A metal film layer is made on a substrate; a Frit encapsulating layer and inorganic quantum dot nano-film layers are prepared on an encapsulating area of cover plate glass; the cover plate glass and an encapsulating area of the substrate are subjected to butt joint; a light source is used for illuminating the cover plate glass and the encapsulating area of the substrate, and the cover plate glass and the substrate are welded and sealed. According to the encapsulating structure and method for improving the Frit encapsulating mechanical strength, the Frit encapsulating strength is enhanced through the inorganic quantum dot nano-film layers, the fused Frit encapsulating layer can permeate into gaps of the nano-film layers, a glass material and nano-film layer composite enhancing system is formed, the welding strength is improved, and the adhesion of the Frit encapsulating layer and the cover plate glass is improved; meanwhile, the uniform and compact film layers formed by the inorganic quantum dot nano-film layers can perform the action of a buffer layer and the action of releasing stress when the cover plate glass is extruded; absorption of lasers can be increased through quantum dots, a smaller laser welding Frit encapsulating layer can be adopted, and the thermal stress impact of a screen body is reduced.

The invention discloses a superhydrophobic powder coating, which includes functional fillers, and is characterized in that the functional fillers include porous particles, low surface energy substances and vulcanized silicone rubber; the preparation method is: adsorbing low surface energy substances on porous The step of obtaining modified porous particles inside the pores of the particles; and the step of wrapping the surface of the modified porous particles with the vulcanized silicone rubber to obtain the functional filler. It solves the problem that the existing superhydrophobic coating surface only enhances the superhydrophobic durability of the coating surface through a single repair chemical composition substance, and the method of the present invention repairs the microstructure and chemical composition substances of the damaged superhydrophobic coating surface at the same time, effectively Improves the hydrophobic durability of the coated surface.

The invention relates to a polymer solar battery and a preparation method of the polymer solar battery. The polymer solar battery comprises an anode substrate, a cavity buffer layer, an active layer and a metal cathode which are sequentially stacked, and also comprises an inorganic layer arranged between the active layer and the metallic cathode.\The polymer solar battery comprises the active layer / inorganic layer structure, the distribution of an optical field in the active layer can be improved, so that a generating region of a carrier is changed, a good place is provided for exciton dissociation, and meanwhile, the transmission efficiency of the carrier is improved; and a contacting interface of the active layer and the cathode is separated, so that metal atoms are prevented from diffusing to the active layer to further destroy the structure of the active layer, the role of a buffering layer is played, and the collection efficiency of electrons at the position of the electrode is improved.