ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)


For citation:

Akmaev A. S., Ivanishchev A. V., Ivanishcheva I. A., Rybakov K. S., Makhov S. V., Korzhakov A. A., Morozov D. I., Dixit A. Peculiarities of Obtaining and Electrochemical Properties of Lithium-Ion Battery Cathode Materials Based on Iron(II)-Lithium Orthosilicate. Electrochemical Energetics, 2019, vol. 19, iss. 2, pp. 63-?. DOI: 10.18500/1608-4039-2019-19-2-63-71, EDN: YEAXUR

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Russian
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Article
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YEAXUR

Peculiarities of Obtaining and Electrochemical Properties of Lithium-Ion Battery Cathode Materials Based on Iron(II)-Lithium Orthosilicate

Autors: 
Akmaev Aleksei Sergeevich, Saratov State University
Ivanishchev Aleksandr Viktorovich, Saratov State University
Ivanishcheva Irina Anatol'evna, Saratov State University
Rybakov Kirill Sergeevich, Saratov State University
Makhov Semen Viktorovich, Saratov State University
Korzhakov Aleksei Alekseevich, Saratov State University
Morozov Dmitrii Igorevich, Saratov State University
Dixit Ambesh, Department of Physics & Center for Solar Energy, Indian Institute of Technology Jodhpur
Abstract: 

Various strategies for the synthesis of promising electrode materials for lithium-ion battery (LIB) based on iron(II)-lithium orthosilicate (Li2FeSiO4) using widely distributed, environmentally friendly and inexpensive starting materials are considered. The materials obtained are multicomponent electroactive composites that include, in addition to the main lithium accumulating component, also auxiliary structure-forming and electrically conductive components based on the products of the pyrolytic decomposition of organic compounds. The structural and morphological features of the obtained LIB’s materials were studied using X-ray diffraction, scanning electron microscopy, laser particle size distribution analyzer. The electrochemical properties of materials were studied by the method of constant current chronopotentiometry (galvanostatic charge-discharge). The dependence of electrochemical properties on synthesis conditions was determined. The reversible cyclic electrochemical capacity of Li2FeSiO4 electrodes reached 220 mAh/g in the initial charge-discharge cycles.

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Received: 
21.01.2019
Accepted: 
25.02.2019
Published: 
24.06.2019