Issue 17, 2009

An electrochemical study of lithium insertion into Cr5−yTiySe8 (y = 1, 2, 3, 4, 4.5) beyond the intercalation limit

Abstract

We studied the electrochemical reaction of lithium with the pseudo-layered compounds Cr5−yTiySe8 (y = 1, 2, 3, 4, 4.5). About 16 Li ions per formula unit can be inserted reversibly corresponding to a specific capacity of about 500 mAh g−1. The electrical potential where the discharge process occurs is decreasing monotonically with increasing titanium content y. The voltage of the discharge process can be adjusted via the titanium content between 0.8 and 0.35 V.

Graphical abstract: An electrochemical study of lithium insertion into Cr5−yTiySe8 (y = 1, 2, 3, 4, 4.5) beyond the intercalation limit

Article information

Article type
Paper
Submitted
15 Dec 2008
Accepted
17 Feb 2009
First published
12 Mar 2009

Phys. Chem. Chem. Phys., 2009,11, 3250-3256

An electrochemical study of lithium insertion into Cr5−yTiySe8 (y = 1, 2, 3, 4, 4.5) beyond the intercalation limit

S. Indris, J. Wontcheu and W. Bensch, Phys. Chem. Chem. Phys., 2009, 11, 3250 DOI: 10.1039/B822397A

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