Литиевые электрохимические системы

DOI: https://doi.org/10.18500/1608-4039-2017-17-3-123-134

DOI: https://doi.org/10.18500/1608-4039-2017-17-4-235-248

DOI: https://doi.org/10.18500/1608-4039-2018-18-1-20-25

Low-frequency electrochemical impedance spectroscopy in the frequency range from 12.5 to 5 ? 10^?4 Hz was used to study changes in standard lithium-thionyl chloride cells during their discharge. Analysis of possible equivalent circuits describing the experimental data shows that the behavior of the cells discharged to 70% can be simulated by finite diffusion impedance in this frequency range.

DOI: https://doi.org/10.18500/1608-4039-2018-18-1-13-19

This article discusses the issue of increasing the reliability of evaluation of the depth of discharge of primary chemical sources of electric current by means of acoustic methods, which have never been used for this purpose, and integration of data of acoustic spectroscopy and impedance and noise spectroscopy.

DOI: https://doi.org/10.18500/1608-4039-2018-18-1-8-12

DOI: https://doi.org/10.18500/1608-4039-2018-18-1-3-7

DOI: https://doi.org/10.18500/1608-4039-2018-18-2-98-108

DOI: https://doi.org/10.18500/1608-4039-2018-18-2-51-76

DOI: https://doi.org/10.18500/1608-4039-2018-18-3-133-140

DOI: https://doi.org/10.18500/1608-4039-2018-18-3-122-127

Impedance spectroscopy was used to study the initial stages of lithium anode dissolution in SAFT LS-33600 cells at frequencies more than 35 Hz. It was found that experimental results can be described by the dissolution of metals covered by a passive film, including the stages of film dilatation and breakdown of the film.