Gerald H. Newman

LiB ( CH 3 ) 4 ‐ Dioxolane Electrolyte in Rechargeable Li / TiS2 Cells

is an example of a large class of boron complex anion salts which are very soluble and highly conductive in dioxolane. Solutions of have been investigated as electrolytes in cells. At room temperature such cells have been operated as rechargeable energy storage devices which are capable of continuous discharge (5 mA/cm2) and charge (1.25 mA/cm2) cycling. While solutions of appear stable over long periods, contact with results in anion oxidation with concomitant formation of . The oxidation products are gases whose apparent rate of generation is proportional to the concentrations of solute and. The product distribution depends on whether solution contacts alone, or in a cell. The electrolyte‐cathode reaction is thought to involve transient methyl radicals which are formed during a concerted process involving anion oxidation and lithiation.