On the Mechanism of SOCL2 Reduction in Lithium Cells
Abstract
The reaction path of the thionyl chloride reduction from electrolytes containing dissolved aluminum chloride, with and without the addition of lithium chloride, is examined by IR-reflectance spectroscopy and cyclic voltammetry. The IR-spectroscopic investigation provides information on the sequence the various SOCL2-bearing species are reduced. In particular, onium ions accept electrons at low overpotentials while the Li(yields OSCL2)2(+) species require an overpotential in excess of 1.0 V for the reduction to occur. The importance of the interplay between participating processes and the charge transfer is indicated by the scan rates and the shape of voltammograms as a function of concentration of the electroactive species. This interplay emphasizes the need for a better understanding of the role of the electrode/electrolyte interphase during cell/battery discharge. Keywords: Electrochemistry; Raman spectroscopy; Electric batteries; Reprints. (aw)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1989
- Accession Number
- ADA214276
Entities
People
- P. A. Boss
- S. Szpak