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

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Gamayunova I. M., Ushakov A. V. Optimizing of Conditions for the Solid-State Synthesis of Lithium-Ion Battery Electrode Materials Using the Multifactorial Experiment Planning. Electrochemical Energetics, 2018, vol. 18, iss. 2, pp. 98-108. DOI: 10.18500/1608-4039-2018-18-2-98-108, EDN: XSLOWD

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Optimizing of Conditions for the Solid-State Synthesis of Lithium-Ion Battery Electrode Materials Using the Multifactorial Experiment Planning

Gamayunova Irina Mikhailovna, Saratov State University
Ushakov Arseni Vladimirovich, Saratov State University


In this paper we investigated the possibility of using of the planning of the multifactor experiment technique to optimize conditions of the solid phase synthesis of the cathode material LiFePO4/C. Parameters of optimization were the carbon content in the samples, the temperature and duration of synthesis; response function – the value of the initial discharge capacity of the electrode. A polynom bounded by linear members was obtained. Further experiments showed that the maximum capacity was demonstrated by electrodes which synthesized at parameter values changed relative to the original in the direction consistent with signs of the regression equation coefficients. The technique of the planning of the multifactorial experiment had made it possible to significantly facilitate the choice of electrode material synthesis conditions by giving the direction of the change significant parameters to achieve the optimum (maximum value of the response function – the specific capacitance).


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