Methodical maintenance impedance spectroscopy for lithium chemical power sources

The possibility of the use of impedance spectroscopy using an impulse method of step current change and recording voltage change in during time at the terminals of a cell with subsequent Fourier transform of the input signal and the response to it to assess the current state of Li-cell. It is proposed use of current pre-impulse in order to minimize the influence of passive film. It is substantiated an algorithm based on the measurements of impedance phase for determining of residual capacity.

Authors:

Petrenko Elena Mikhailovna, Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS, 31, Leninsky Ave, Moscow, 119071, el-02@mail.ru

Lukovtsev Vyacheslav Pavlovich, Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS, 31, Leninsky Ave, Moscow, 119071, el-02@inail.ru

Dribinskii Aleksandr Veniaminovich, Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS, 31, Leninsky Ave, Moscow, 119071, el-02@mail.ru

Klyuev A. L., Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS, 31, Leninsky Ave, Moscow, 119071

Key words:

импедансная спектроскопия, литиевый химический источник тока, эквивалентная схема, годограф

Literature

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Journal issue:

2010. Т. 10, № 3,

DOI:

https://doi.org/10.18500/1608-4039-2010-10-3-128-132

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