NANOSTRUCTURED ELECTRODE FOR PSEUDOCAPACITIVE ENERGY ACCUMULATION Russian patent published in 2014 - IPC H01G11/22 H01G9/45 

FIELD: chemistry.

SUBSTANCE: claimed is a nanoporous matrix structure, representing a substrate from an anodised aluminium oxide (AAO), which is used to create a pseudocapacitor with high density of accumulated energy. A pseudocapacitive material is conformally deposited on the side walls of the AAO substrate by an atomic layer deposition, chemical deposition from a vapour phase and/or electrochemical deposition with application of a nucleation layer. Thickness of the pseudocapacitive material on the walls can be accurately regulated in the process of deposition. The AAO is subjected to etching to form a body of cylindrical and structurally stable nanotubes from the pseudocapacitive material with cavities made in them. As the AAO substrate, acting as a bearing framework, is removed, and the only active pseudocapacitive material remains, energy per weight unit is brought to the maximum. In addition, the nanotubes can be separated from the substrate, and in order to obtain the pseudocapasitor electrode, the freely located nanotubes with randomised orientation can be deposited on the conducting substrate.

EFFECT: improvement of construction.

24 cl, 20 dwg