Abstract

Isochronous annealing of preliminarily compacted silicon nanopowder specimens is investigated. The density, structure, and conductivity of the material are determined as a function of sintering temperature. The electrochemical characteristics of anodes, which were sintered in the temperature range of 1100 to 1200°C, are studied using galvanostatic tests and cyclic voltammetry. It is found that the specimen, which was annealed at T = 1150°C, shows the best results. This specimen has a density of 1.60 g/cm3, a connected silicon framework, and an open-pore system.

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