Email this article Chemical Oxidation of LiFePO4 in Aqueous Medium as a Method for Studying Kinetics of Delithiation
- Authors: Kurbatov A.P.1,2, Malchik F.I.1,2, Galeyeva A.K.1,2, Davydchenko D.S.1, Rakhimova A.K.1,2, Lepikhin M.S.1, Kamysbayev D.K.2
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Affiliations:
- Center of Physical and Chemical Methods of Research and Analysis
- Al-Farabi Kazakh National University
- Issue: Vol 54, No 3 (2018)
- Pages: 225-233
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189272
- DOI: https://doi.org/10.1134/S1023193518030072
- ID: 189272
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Abstract
The kinetics of LiFePO4 oxidation by hydrogen peroxide in aqueous alkaline medium is studied with the use of potentiometric determination of lithium concentration in solution during delithiation. It is demonstrated that the lithium transfer through the reaction-product layer is controlled by diffusion. The activation energy and the diffusion coefficient of the species transferred in the solid phase during the chemical reaction of oxidative delithiation are determined and the parameters of this processes are analyzed.
About the authors
A. P. Kurbatov
Center of Physical and Chemical Methods of Research and Analysis; Al-Farabi Kazakh National University
Author for correspondence.
Email: kurbatovap@gmail.com
Kazakhstan, Almaty; Almaty, 050012
F. I. Malchik
Center of Physical and Chemical Methods of Research and Analysis; Al-Farabi Kazakh National University
Email: kurbatovap@gmail.com
Kazakhstan, Almaty; Almaty, 050012
A. K. Galeyeva
Center of Physical and Chemical Methods of Research and Analysis; Al-Farabi Kazakh National University
Email: kurbatovap@gmail.com
Kazakhstan, Almaty; Almaty, 050012
D. S. Davydchenko
Center of Physical and Chemical Methods of Research and Analysis
Email: kurbatovap@gmail.com
Kazakhstan, Almaty
A. K. Rakhimova
Center of Physical and Chemical Methods of Research and Analysis; Al-Farabi Kazakh National University
Email: kurbatovap@gmail.com
Kazakhstan, Almaty; Almaty, 050012
M. S. Lepikhin
Center of Physical and Chemical Methods of Research and Analysis
Email: kurbatovap@gmail.com
Kazakhstan, Almaty
D. Kh. Kamysbayev
Al-Farabi Kazakh National University
Email: kurbatovap@gmail.com
Kazakhstan, Almaty, 050012
