| 主权项 |
1. A preparation method of the electrostatic energy storage device, characterized in that: the method comprises the steps:
A. The metal film electrode is prepared by means of vacuum coating or electrochemical deposition; B. Then, photoetching, or composite nano electrochemical deposition, or vapor deposition is carried out on the metal film electrode to form a nano microstructure on the surface of the metal film electrode; C. By means of ion sputtering, or electrophoresis, or spin coating, or Czochralski method, or screen printing, or inkjet printing, the composite nano insulating film layer having a high dielectric strength is attached to the metal film electrode, and then, the composite nano insulating film layer at one end of the metal film electrode is removed to expose a conductive surface, thus forming an anode/cathode; D. A surface-modified nano ceramic nanocrystalline is hot-pressed into the ceramic nanocrystalline film; or a ceramic nanocrystalline precursor is prepared using sol-gel method, the ceramic nanocrystalline precursor is then drawn for film formation, and the film-drawn ceramic nanocrystalline precursor is fired into the ceramic nanocrystalline film, or the film-drawn ceramic nanocrystalline precursor is fired into the ceramic nanocrystalline film by means of laser scanning sintering, afterwards, by means of ion sputtering, or electrophoresis, or spin coating, or screen printing, or inkjet printing, the ceramic nanocrystalline film having an ultrahigh dielectric constant is further attached to the metal film electrode to form a three-layer structure; and E. The prefabricated metal film electrode is formed by repeating the steps A to C and then laid on the three-layer structure formed in the step D, so that the anode and cathode of the electrostatic energy storage unit are located at the two ends, respectively. |
