Improvement of electrochemical behavior of amorphous silicon via preliminary heat treatment

Thin-film amorphous silicon electrodes, subjected to various pretreatment have been tested in galvanostatic and potenciodynamic modes. Preliminary heat treatment of silicon electrodes in nitrogen atmosphere was established to lead to some decrease in discharge capacity and insignificant decrease in degradation upon cycling. Preliminary annealing of silicon electrodes in vacuum at 480°C results in increase of discharge capacity and some decrease of degradation upon cycling. Silicon electrodes with thickness about 1 micron annealed in vacuum have discharge capacity about 1200 mA·h/g.

Authors:

Gryzlov Dmitrii Yur'evich, Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS, 31, Leninsky Ave, Moscow, 119071, 6u2008@yandex.ru

Rudyi Aleksandr Stepanovich, Yaroslavl Branch of Federal State Budgetary Institution of Science of RAS Physicotechnological Institute, 21, Universitetskaya St., Yaroslavl, 150007, rudy@uniyar.ac.ru

Mironenko Aleksandr Aleksandrovich, Yaroslavl Branch of Federal State Budgetary Institution of Science of RAS Physicotechnological Institute, 21, Universitetskaya St., Yaroslavl, 150007, amironenko55@mail.ru

Berdnikov A. E., The Yaroslavl State University of P. G. Demidov, 14, Sovetskaya St., Yaroslavl, 150000

Popov A. A., The Yaroslavl State University of P. G. Demidov, 14, Sovetskaya St., Yaroslavl, 150000

Kulova Tat'yana L'vovna, Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS, 31, Leninsky Ave, Moscow, 119071, tkulovat@mail.ru

Key words:

аморфный кремний, тонкие пленки, внедрение лития, предобработка

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Journal issue:

2011. Т. 11, № 3,

Heading:

Lithium electrochemical systems

DOI:

https://doi.org/10.18500/1608-4039-2011-11-3-136-141

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