New electrolytes for Li/SO2 cells

✍ Scribed by J. Sarradin; R. Messina; J. Perichon

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 467 KB
• Volume: 21
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(87)80047-2

✦ Synopsis

Aromatic and aliphatic sulfones and, more particularly, dimethyl sulfone (DMS02), used as cosolvents with sulfur dioxide allow the dissolution of various lithium salts. The dependence of the conductivity on the concentration of both lithium salts and DMSOz has been studied.

Lithium bromide and LiCl based electrolytes can be obtained with high conductivities, the best being LiBr/DMS02/S02 (32 X lo-' a2-l cm-') and LiC1/DMS02/S02 (21 X 10e3 a-' cm-'). These conductivities are of the same order of magnitude as those for LiBr/AN/S02 electrolytes. However, the high solubility of LiCl in liquid SO* -via DMSOz -may offer a suitable alternative to the electrolytes currently used in Li/S02 cells.