3results about How to "Solve dissolve" patented technology

This invention belongs to the technical field of lithium-ion battery cathode materials, specifically relating to a sulfonic acid-based organic polymer, a sulfonic acid-based organic polymer / carbon nanotube composite material, its preparation method, and its application. The sulfonic acid-based organic polymer is prepared by a dehydration condensation reaction of 2,5-diaminobenzenesulfonic acid and hexaazabenzophenanthrene hexacarboxylic acid trianal. When used as a lithium-ion battery cathode material, it exhibits high specific capacity and excellent cycle stability, overcoming the solubility problem of organic cathode materials in electrolytes. When the sulfonic acid-based organic polymer is combined with carbon nanotubes and applied to lithium-ion battery cathode materials, battery performance is significantly improved, and the capacity remains stable even after long-term cycling. The synthesis methods of the sulfonic acid-based organic polymer and the sulfonic acid-based organic polymer / carbon nanotube composite material of this invention are simple, have abundant raw material sources, and good reproducibility, making them suitable for industrial production and possessing broad application prospects in the field of lithium-ion batteries.

The invention provides a photoetching patterning method. The photoetching patterning method comprises the following steps: S1, forming a packaging material layer on the surface of a single crystal perovskite device; s2, spin-coating a layer of negative photoresist on the packaging material layer to form a target pattern; s3, etching and thinning the target pattern area on the packaging material layer; s4, removing the negative photoresist spin-coated in the step S2, and spin-coating a layer of negative photoresist again to form an intermediate pattern; s5, etching and thinning the middle pattern area on the packaging material layer until the surface of the single crystal perovskite device corresponding to the target pattern is exposed, and forming a hole structure with a T-shaped longitudinal section on the packaging material layer; s6, depositing a metal material in the pore structure to form a T-shaped barrier structure; and S7, soaking the single-crystal perovskite device in a stripping solvent, and removing the negative photoresist to complete photoetching patterning of the single-crystal perovskite device. According to the invention, the problem that a perovskite material is damaged due to solvent permeation caused by long-time solvent soaking in a single crystal perovskite photoetching patterning process is solved.

This invention belongs to the field of organic electrode material synthesis, and discloses a bipolar covalent organic framework material, its preparation method, application, and battery. The chemical structural formula of the bipolar covalent organic framework material is shown in formula (1). This invention can improve the specific capacity and electronic conductivity of the cathode material, and also solve the problem of dissolution of small organic molecules.