Influence of heterovalent substitution in the titanium sublattice on the electrochemical intercalation of lithium in M (y) Ti1-y Se-2 (M = Cr, V)) / Brezhestovskii M. S.,Suslov E. A.,Bushkova O. V.,Merentsov A. I.,Titov A. N. // PHYSICS OF THE SOLID STATE. - 2015. - V. 57, l. 10. - P. 2078-2086.

ISSN/EISSN:

1063-7834 / 1090-6460

Type:

Article

Abstract:

The influence of heterovalent substitutions Ti-V and Ti-Cr on the electrochemical intercalation of lithium into titanium diselenide has been investigated. It has been found that both types of doping insignificantly decrease the electromotive force (emf) with respect to metallic lithium. The substitution of vanadium for titanium provides a significant increase in the intercalation capacity of the material. The effect has been explained by the decrease in the solubility of lithium, which prevents the formation of a blocking phase with an extremely high lithium concentration (three atoms per formula unit). The substitution of chromium does not lead to a similar effect, because the decrease in the solubility of lithium is accompanied by an increase in the concentration of superstoichiometric titanium that occupies the lattice sites accessible to the diffusion of lithium in TiSe2.

Author keywords:

TRANSITION-METAL DICHALCOGENIDES; CATHODE MATERIALS; TIS2 CATHODES; BATTERIES; DIFFUSION; LIXTIS2; THERMODYNAMICS; CRYSTALS

DOI:

10.1134/S106378341510008X

Web of Science ID:

ISI:000362682900026

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6460
Keywords-Plus	TRANSITION-METAL DICHALCOGENIDES; CATHODE MATERIALS; TIS2 CATHODES; BATTERIES; DIFFUSION; LIXTIS2; THERMODYNAMICS; CRYSTALS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	antitov@mail.ru
ResearcherID-Numbers	Titov, Alexander/K-4328-2013 Merentsov, Alexander/R-6275-2016
ORCID-Numbers	Titov, Alexander/0000-0003-3636-2604 Merentsov, Alexander/0000-0002-0005-2594 Brezhestovsky, Michael/0000-0001-9015-1854 Bushkova, Olga/0000-0003-2230-5705 Suslov, Eugeniy/0000-0001-9078-7588
Funding-Acknowledgement	Russian Foundation for Basic Research {[}13-03-96032 r\_ural\_a]
Funding-Text	This study was supported by the Russian Foundation for Basic Research (project no. 13-03-96032 r\_ural\_a).
Number-of-Cited-References	50
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	27
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	CT3CC