Journal
JOURNAL OF POWER SOURCES
Volume 174, Issue 2, Pages 770-773Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2007.06.231
Keywords
lithium ion battery; nanosized Sn; anode; laser-induced vapor deposition
Ask authors/readers for more resources
Nanosized tin powder was prepared by laser-induced vapor deposition and studied as an alternative anode material for lithium ion batteries. The nano tin particles are spherical, and their size varies from 5 nm to 80 nm. The prepared powder consists of two compounds: a major amount of Sn and a minor amount of SnO. Results of cyclic voltammograms (CVs) indicate that SnO is deoxidized to Sri almost completely in the first cycle. The reaction of tin with lithium proceeds in two steps. At first, a Li-deficient phase is formed, later a Li-rich phase. Reaction kinetics are controlled by a diffusion step, and the diffusion coefficient of lithium ions in the anode is calculated to be 4.15 x 10(-8) cm(2) s(-1). The initial charge capacity is nearly to the theoretical reversible capacity of lithium insertion into tin, resulting in Li-22 Sn-5. (C) 2007 Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available