Cyclic and acyclic sulfites: new solvents and electrolyte additives for lithium ion batteries with graphitic anodes?

The low viscosities of the linear sulfites dimethyl sulfite and diethyl sul fite are suggesting an investigation of their suitability as low viscosity co-solvents for ethylene carbonate based electrolytes. In this study, elect rochemical performances at graphitic anodes and conductivities in the tempe rature range -60 to +60 degreesC are presented. Comparisons with the Linear carbonates dimethyl carbonate and diethyl carbonate, which have been curre ntly used as low viscosity solvents in lithium ion batteries, are made. (C) 2001 Elsevier Science B.V. All rights reserved.