Thin-Layer <i>SiO₂/Ni</i>-composites Produced Electrochemically in Lithium Prototype Accumulator

CZU 544.643-621.357

DOI  https://doi.org/10.5281/zenodo.1053795

Silicon dioxide was produced by deposition from Na₂SiО₃·mH₂O aqueous solution. The particle size of the main faction of the synthesized material, determined in an electron microscope, is in a range of 12–16 nm. On the data of the XRD patterns, SiO₂ of amorphous modification was obtained. Then it was used for production of a thin-layer SiO₂/Ni composite by electrolysis for application in negative electrodes of miniature lithium-ion batteries (LIB). The investigations of SiO₂/Ni composite in a prototype of a Li-accumulator by the galvanostatic mode show the stable cycling in the voltage of 0.40–0.15 V as evidence of the perspective of its usage in LIB.

Keywords: SiO₂ dioxide, amorphous modification, nanometer SiO₂/Ni composite, electrolysis, lithium battery.