Enhancement of thin film tin oxide negative electrodes for lithium batteries

Citation
Sc. Nam et al., Enhancement of thin film tin oxide negative electrodes for lithium batteries, ELECTROCH C, 3(1), 2001, pp. 6-10
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ELECTROCHEMISTRY COMMUNICATIONS
ISSN journal
1388-2481 → ACNP
Volume
3
Issue
1
Year of publication
2001
Pages
6 - 10
Database
ISI
SICI code
1388-2481(200101)3:1<6:EOTFTO>2.0.ZU;2-L
Abstract
Thin films of pure SnO2, of the Sn/Li2O layered structure, and of Sn/Li2O w ere fabricated by sputtering method, while a 'lithium-reacted tin oxide thi n film' was assembled by the evaporation of lithium metal onto a SnO2 thin film. Film structure and charge/ discharge characteristics were compared. T he lithium-reacted tin oxide thin film, the Sn/Li2O layered structure, and the Sn/Li2O cosputtered thin films did not show any irreversible side react ions of forming Li2O and metallic Sn near 0.8 V vs Li/Li+. The initial char ge retention of the Sn/Li2O layered structure and Sn/Li2O co-sputtered thin films was about 50% and a similar value was found for the lithium-reacted tin oxide thin film (more than 60%). Sn/Li2O layered structure and Sn/Li2O co-sputtered thin films showed better cycling behavior over 500 cycles than the pure SnO2 and lithium-reacted till oxide thin film in the cut-off rang e from 1.2 to 0 V vs Li/Li+. (C) 2001 Elsevier Science B.V. All rights rese rved.