• 专利标题:   Covalent organic framework material useful in aqueous-based light-rechargeable proton batteries, where material has redox sites having light-responsive proton deintercalation activity, and redox site is carbonyl/hydroxy, nitroxide free radical, triazinyl and/or nitrogen cation.
  • 专利号:   CN115725083-A
  • 发明人:   ZHANG X, FENG Y, JIAO L, WANG Y
  • 专利权人:   FUJIAN MATERIAL STRUCTURE INST
  • 国际专利分类:   C08G083/00, H01M014/00, H01M004/36, H01M004/60, H01M004/62
  • 专利详细信息:   CN115725083-A 03 Mar 2023 C08G-083/00 202323 Chinese
  • 申请详细信息:   CN115725083-A CN11451031 18 Nov 2022
  • 优先权号:   CN11451031

▎ 摘  要

NOVELTY - Covalent organic framework material, is claimed. The covalent organic framework material has redox sites having light-responsive proton deintercalation activity. The redox site is carbonyl/hydroxy, porphyrin nitrogen, phthalocyanine nitrogen, pyridine nitrogen, imine, azo, nitroxide free radical, triazinyl and/or nitrogen cation. USE - The covalent organic framework material is useful in aqueous-based light-rechargeable proton batteries (claimed). ADVANTAGE - The electrode material can be directly used as the anode and/or the cathode of the photorechargeable battery to realize the construction of efficient solar energy-to-electrochemical energy conversion system. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: electrode material, comprising optical energy storage unit and interface charge transport material, where the optical energy storage unit has charge separation and redox sites, and the optical energy storage unit and the interface charge transport material are integrated to construct interface heterojunction, the interfacial heterojunction is used to regulate the directional transport of photogenerated carriers, in the electrode material, the optical energy storage unit is covalent organic framework material, the interface charge transport material is positive interface charge transport material and/or negative interface charge transport material, the positive interface charge transport material comprises silver, carbon nanotubes, graphene, graphyne and/or molybdenum disulfide, preferably silver, the cathode interface charge transport material comprises titanium dioxide, zinc oxide, vanadium pentoxide, bismuth vanadate, hydrotalcite and/or cadmium sulfide, preferably titanium dioxide, the interface charge transport material is titanium dioxide, silver nanoparticles and/or nano-zinc oxide, in the electrode material, the mass ratio of the covalent organic framework material to the interface charge transport material is 1:1-10:1, and the interface heterojunction comprises type-II heterojunction, Zscheme heterojunction and/or Mott-Schottky heterojunction; preparing the electrode material, comprising physically mixing the covalent organic framework material and the interfacial charge transport material, reacting the reaction precursor in situ on the surface of the interface charge transport material to obtain the covalent organic framework material to obtain the electrode material, where the mass ratio of the covalent organic framework material to the interface charge transport material is 1:1-10:1, the interfacial charge transport material is also supported on the substrate, the interfacial charge transport material is provided by substrate supporting the interfacial charge transport material, the substrate comprises metal materials, carbon materials, fluorine-doped tin oxide (FTO) glass and/or indium tin oxide (ITO) glass, the substrate loaded with the interfacial charge transport material is obtained by in-situ synthesis of the interfacial charge transport material on the substrate, and the method of in situ synthesizing the interfacial charge transport material on the substrate comprises photodeposition, electrodeposition, hydrothermal growth and/or tube furnace thermal reaction; anode material, comprising covalent organic framework material and the anode interface charge transport material; cathode material comprising covalent organic framework material and cathode interface charge transport material; aqueous-based light-rechargeable proton batteries, comprising electrode material, anode material and/or cathode material, preferably anode material and/or cathode material, where aqueous-based light-rechargeable proton battery has light transmittance, and aqueous-based light-charged proton battery can directly convert light energy into electrochemical energy for energy storage; constructing the water system light-rechargeable proton battery, comprising (1) coating anode material and the cathode material on the surface of the anode current collector and the cathode current collector respectively to obtain the anode and the cathode, (2) fixedly assembling positive pole and the negative pole in the battery casing, and installing battery separator between the positive pole and the negative pole, (3) injecting the water-based electrolyte into the battery case, fully infiltrating, and packaging it to obtain the aqueous-based light-rechargeable proton battery, where the anode current collector and the cathode current collector can be materials, the anode current collector and the cathode current collector are above-mentioned substrates, in the step (1), positive pole tabs and negative pole tabs are also respectively provided on the positive pole and the negative pole, the anode current collector and the cathode current collector are drawn out of the battery case through the anode tab and the cathode tab respectively, in the step (2), the fixing refers to fixing the anode and the cathode on the current collecting and fixing plate of the anode and the current collecting and fixing plate of the cathode, and the current collecting and fixing plate of the anode and the current collecting and fixing plate of the cathode are independent of each other and include transparent glass and metal plates.