Graphites from the Zavalie deposit as active materials for lithium-ion batteries

We study the utility of standard graphites (GAK-2, GL-1, EUZ-M, and others) produced by the Zavalie Integrated Graphite Plant (ZGP) as active materials in lithium-ion batteries (LIBs). The structure and main electrochemical characteristics of these graphites are studied for choosing the best type of...

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Bibliographic Details
Published in:Russian journal of electrochemistry 2008-05, Vol.44 (5), p.579-584
Main Authors: Barsukov, V. Z., Il’in, E. A., Likhnitskii, K. V., Zayats, O. V., Tverdokhleb, V. S., Kryukov, V. V., Kryukova, E. A., Lysin, V. I.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Electrochemistry
Physical Chemistry
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Summary:We study the utility of standard graphites (GAK-2, GL-1, EUZ-M, and others) produced by the Zavalie Integrated Graphite Plant (ZGP) as active materials in lithium-ion batteries (LIBs). The structure and main electrochemical characteristics of these graphites are studied for choosing the best type of graphite and evaluating its utility for LIB production. The electrochemical characteristics of the best ZGP graphites and graphite for batteries produced by Superior Graphite Co. (USA), a worldwide leader of the graphite industry, are compared. Some tendencies in the effect of the structure and particle-size distribution on the electrochemical characteristics of graphite electrodes are determined. EUZ-M graphite modified by tin with amorphous carbon is prepared. The reversible capacity of this graphite in the cell against LiCoO 2 exceeds 400 mA h/g. The increased reversible capacity is due to the contribution of components having higher specific parameters; the cycling stability is due to the core-shell structure.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193508050121