Study of the Process of Reversible Insertion of Lithium into Nanostructured Materials Based on Germanium
- Authors: Gavrilin I.M.1, Smolyaninov V.A.1, Dronov A.A.1, Gavrilov S.A.1, Trifonov A.Y.1,2, Kulova T.L.3, Kuz’mina A.A.3, Skundin A.M.3
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Affiliations:
- National Research University of Electronic Technology
- Lukin Research Institute of Physical Problems
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Issue: Vol 54, No 12 (2018)
- Pages: 1111-1116
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/190126
- DOI: https://doi.org/10.1134/S1023193518120054
- ID: 190126
Cite item
Abstract
Nanostructured germanium samples prepared by electrochemical deposition from aqueous solution of 0.05 М germanium oxide onto titanium substrate are tested as the negative electrodes of lithium-ion batteries. The reversible capacity in the process of lithium insertion-extraction is found to be about 1180 mA h/g, which corresponds to the formation of Li3.05Ge alloy. The effective diffusion coefficient of lithium in germanium is shown to be 1.2 × 10–11 cm2/s. The degradation of the germanium electrode upon cycling at 0.6 С rate is less than 0.3% per cycle.
About the authors
I. M. Gavrilin
National Research University of Electronic Technology
Email: tkulova@mail.ru
Russian Federation, Zelenograd, Moscow oblast, 124498
V. A. Smolyaninov
National Research University of Electronic Technology
Email: tkulova@mail.ru
Russian Federation, Zelenograd, Moscow oblast, 124498
A. A. Dronov
National Research University of Electronic Technology
Email: tkulova@mail.ru
Russian Federation, Zelenograd, Moscow oblast, 124498
S. A. Gavrilov
National Research University of Electronic Technology
Email: tkulova@mail.ru
Russian Federation, Zelenograd, Moscow oblast, 124498
A. Yu. Trifonov
National Research University of Electronic Technology; Lukin Research Institute of Physical Problems
Email: tkulova@mail.ru
Russian Federation, Zelenograd, Moscow oblast, 124498; Zelenograd, Moscow oblast, 124498
T. L. Kulova
Frumkin Institute of Physical Chemistry and Electrochemistry
Author for correspondence.
Email: tkulova@mail.ru
Russian Federation, Moscow, 119071
A. A. Kuz’mina
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: tkulova@mail.ru
Russian Federation, Moscow, 119071
A. M. Skundin
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: tkulova@mail.ru
Russian Federation, Moscow, 119071