Anodes for Lithium-Ion Batteries Obtained by Sintering Silicon Nanopowder

E. V. Astrova E. V. Astrova , V. B. Voronkov V. B. Voronkov , A. M. Rumyantsev A. M. Rumyantsev , A. V. Nashchekin A. V. Nashchekin , A. V. Parfen’eva A. V. Parfen’eva , D. A. Lozhkina D. A. Lozhkina
Российский электрохимический журнал
Abstract / Full Text

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.

Author information
  • Ioffe Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    E. V. Astrova, V. B. Voronkov, A. M. Rumyantsev, A. V. Nashchekin, A. V. Parfen’eva & D. A. Lozhkina

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