Investigation of lead tin fluorides as possible negative electrodes for Li-ion batteries

Lead tin fluorides are well known fast ion conductors. In this study the electrochemical behaviour of materials as negative electrodes in lithium rechargeable batteries was investigated. The initial reduction with lithium occurs at much higher potentials for fluorides than oxides. This correlates we...

Full description

Saved in:
Bibliographic Details
Published in:Journal of power sources 2001-07, Vol.97, p.258-261
Main Authors: Garza Tovar, Lorena L., Connor, Paul A., Belliard, Frédérique, Torres-Martı́nez, Leticia M., Irvine, John T.S.
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Lead tin fluorides
Lithium-alloy anode
Lithium-ion battery
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Lead tin fluorides are well known fast ion conductors. In this study the electrochemical behaviour of materials as negative electrodes in lithium rechargeable batteries was investigated. The initial reduction with lithium occurs at much higher potentials for fluorides than oxides. This correlates well with the standard energies of formation of metals and lithium oxide/fluoride on lithium insertion. Lead rich compounds present a greater degree of crystallinity than tin rich materials and it is also observed that fluoride matrices exhibit greater crystallinity after cycling than their oxide counterparts. Tin oxide exhibits the best cycling performance and this seems to correlate with the low degree of crystallinity observed in this system.
ISSN:0378-7753
1873-2755
DOI:10.1016/S0378-7753(01)00533-X